Alloyed metal colloid

Provided is a metal colloid having higher visibility and higher sensitivity than a gold colloid and a Au-core Pt-shell composite colloid and suitable as a labeling agent for use in a test such as an immunoassay. An alloyed Au/Pt composite colloid formed by mixing a gold salt and a platinum salt with at least one reducing agent selected from the group consisting of an amino acid and a derivative thereof, an oligopeptide and a derivative thereof, and an amino sugar in the presence of an alkali, thereby reducing the gold salt and platinum salt.

METHOD FOR PRODUCTION OF STABLE CERIUM OXIDE ORGANIC COLLOIDS

An improved process for producing substantially non-polar doped or un-doped cerium oxide nanoparticle dispersions is disclosed. The cerium-containing oxide nanoparticles of an aqueous colloid are transferred to a substantially non-polar liquid comprising one or more amphiphilic materials, one or more low-polarity solvents, and one or more glycol ether promoter materials. The transfer is achieved by mixing the aqueous and substantially non-polar materials, forming an emulsion, followed by a phase separation into a remnant polar solution phase and a substantially non-polar organic colloid phase. The organic colloid phase is then collected. The promoter functions to speed the transfer of nanoparticles to the low-polarity phase. The promoter accelerates the phase separation, and also provides improved colloidal stability of the final substantially non-polar colloidal dispersion. Importantly, the glycol ether promoter reduces the temperature necessary to achieve the phase separation, while providing high extraction yield of nanoparticles into the low-polarity organic phase. 1. A process for preparing a colloidal dispersion , comprising:(a) preparing an aqueous colloidal dispersion of cerium-containing oxide nanoparticles;(b) adding a substantially non-polar solvent, an amphiphilic material, and at least one glycol ether;(c) mixing the liquid mixture of step (b) to form an emulsion;(d) heating the emulsion to a predetermined temperature for a predetermined time, whereafter the emulsion separates into a substantially non-polar colloidal phase and a remnant aqueous phase; and,(e) collecting the separated substantially non-polar colloidal dispersion of cerium-containing oxide nanoparticles.2. The process of claim 1 , wherein said temperature ranges from about 20° C. to less than 60° C.3. The process of claim 1 , wherein said time ranges from 0 to 8 hours.4. The process of claim 1 , wherein said glycol ether is added in its entirety during step (d).5. The process of claim 4 , ...

Metal sol containing doped silver nanoparticles

The invention relates to a metal particle sol, which comprises silver nanoparticles that are doped with a metal or a metal compound selected from the group of metals: ruthenium, rhodium, palladium, osmium, iridium and platinum, preferably ruthenium, to a method for producing such a sol and to its use.

METHOD FOR THE WET DEPOSITION OF THIN FILMS

Methods for the deposition of thin films comprising at least preparing a solution containing at least one transition metal oxide powder in a solvent, continuously stirring said solution in order to form a sol, and using said sol in the form of said transition metal oxide film, wherein the powder is subjected to a preliminary preparation step. 1. A process for manufacturing a film of oxide of transition metals , the process comprising:{'sub': a', 'b', 'c, 'claim-text': A is an alkali metal;', 'M is a metal or a mixture of metals chosen from transition metals, lanthanides or actinides;', 'O is oxygen; and', 'a, b and c are real numbers greater than 0 and are chosen so as to provide electrical neutrality;, '(a) providing a powder of formula AMO, in which(b) preparing a colloidal sol from the said powder processed in (a), (c′) depositing one or more layers of the said colloidal sol on the said substrate, and', '(c″) annealing said one or more layers formed in stage (c′) in order to prepare the said film of oxide of transition metals,, '(c) processing the said colloidal sol in the form of the said film of oxide of transition metals on a substrate degreased beforehand using a solution containing a first alcoholic or alkaline solvent S1, the said processing comprising [{'sub': a', 'b', 'c, '(b′) providing the said powder AMOhaving a desired particle size distribution;'}, {'sub': a', 'b', 'c, '(b″) calcining the said AMOpowder from (b′), and'}, '(b′″) mixing the said powder obtained after the calcining of (b″)', 'with a second solvent S2 to form the said colloidal sol, and the said colloidal sol thus formed consists of one or more calcined oxides of metals and one or more solvents., 'wherein the said colloidal sol is prepared by2. The process according to claim 1 , wherein (b′) for providing the powder of desired particle size distribution comprises the grinding of the said powder of oxide AMO.3. The process according to claim 1 , further comprising doping by deposition of ...

METHOD OF PRODUCING METALLIC NANO PARTICLE COLLOIDAL DISPERSIONS

The present process provides a method for synthesizing difficult to make oxide-free nanometals and such as Zn, Sn and Ti and alloys of the period 4 and 5 transition metal elements in a free and reduced state using a solution phase synthesis process. Also provided is a method for stabilizing their associated colloidal metal and alloy dispersions under kinetic control at modest temperatures (<90 degrees Celsius). A solution of an organic reducing agent containing at least two proximal nitrogen atoms is reacted with a separate solution containing one or more metal-organic salts dissolved in the same or different low molecular weight solvent as the reducing agent. The reaction products are stabilized with Lewis bases and Lewis acids and optionally can be concentrated by removing a portion of the volatile low molecular weight solvent by either the use of a partial vacuum or by chemical extraction into another phase. 1. A stable , fully reduced metallic nanoparticle-containing colloidal dispersion in which the nanoparticle is a reduced metal and aromatic stabilizer with a uniform and mean particle size less than about 5 nm , wherein the nanoparticle comprises a reduced metal and aromatic stabilizer with at least two nitrogen functional groups.2. The stable claim 1 , fully reduced metallic nanoparticle-containing colloidal dispersion of claim 1 , wherein the reduced metal is selected from the group consisting of reduced metals from the 4th and 5th period of the Periodic Table.3. The stable claim 1 , fully reduced metallic nanoparticle-containing colloidal dispersion of claim 1 , wherein the reduced metal is selected from the group consisting of antimony claim 1 , aluminum claim 1 , copper claim 1 , cobalt claim 1 , chromium claim 1 , iron claim 1 , tin claim 1 , zinc claim 1 , nickel claim 1 , titanium and combinations thereof. This continuation-in-part application claims the benefit of priority from provisional application U.S. Ser. No. 62/363,591 filed on Jul. 18, 2016 ...

Cationic polyoxometalate-coated alumina trihydrate dispersants

The present invention relates to polyoxometalate-coated alumina trihydrate dispersants prepared by combining a polyaluminum chloride having certain characteristics with alumina trihydrate particles. Such dispersants are useful for forming cationic alumina trihydrate slurries, which can be mixed with titanium dioxide to produce stable cationic slurry blends useful in paper, paper-board, and paint (coatings) applications. The dispersants are also useful for preparing cationic titanium dioxide slurries.

Method of Applying and Using Color Changing Materials In Articles of Wear

Articles of wear comprises iron oxide colloidal nanocrystals arranged within chains are described. The chains of nanocrystals display a color that is determined by a strength of a magnetic field applied to the chains of nanocrystals, wherein the color is maintained when the magnetic field is removed. 122.-. (canceled)23. An apparatus for manipulating a color displayed by an article of wear comprising iron oxide colloidal nanocrystals arranged within chains , the apparatus comprising:a platform comprising a substantially flat surface; anda pulsating electromagnet configured to switch between generating a rapidly fluctuating magnetic field and a non-fluctuating magnetic field.24. The apparatus of claim 23 , wherein the rapidly fluctuating magnetic field creates transient currents in the chains of nanocrystals.25. The apparatus of claim 24 , wherein the transient currents lead to a softening or melting of materials within the article of wear immediately surrounding the chains of nanocrystals.26. The apparatus of claim 25 , wherein the pulsating electromagnet is configured to switch to the non-fluctuating magnetic field after the materials have been softened or melted.27. The apparatus of claim 23 , wherein the substantially flat surface comprises a gap formed therein.28. The apparatus of claim 27 , wherein the gap is approximately 0.5 inches in width and approximately 8.5 inches in length.29. The apparatus of claim 27 , wherein the article of wear comprises a roll of textile that is unrolled proximate a first end of the platform claim 27 , positioned adjacent the surface of the platform and the gap therein claim 27 , and re-rolled proximate a second end of the platform.30. An apparatus for manipulating a color displayed by a material or article comprising iron oxide colloidal nanocrystals arranged within chains claim 27 , the apparatus comprising:a platform configured to support the material or article;a magnetic field source configured to create transient currents in ...

System and Method for Manipulating Color Changing Materials

Systems and methods of manipulating a color displayed by an article of wear comprising iron oxide colloidal nanocrystals arranged within chains are described. Steps may include forming the article of wear from a raw material that include the chains of nanocrystals, applying a magnetic field to the raw material, applying energy to at least some of the chains of nanocrystals to soften materials within the raw material immediately surrounding the chains of nanocrystals to which the energy is applied, adjusting a strength of the magnetic field to control the color displayed by the raw material, removing the energy to allow the materials within the raw material immediately surrounding the chains of nanocrystals to harden and fix a location of the nanocrystals within the chains, and removing the magnetic field.

METHODS FOR SURFACTANT REMOVAL FROM NANOPARTICLE SUSPENSIONS

The present disclosure relates to the cleansing of nanoparticles in aqueous cationic surfactant solutions, including polyalkylammonium salts such as cetyltrimethylammonium bromide, as demonstrated by surfactant exchange, followed by the addition of peptizing agents to stabilize the cleansed nanoparticle solutes. 1. A method of treating suspensions , comprising:adding a polymeric detergent to a suspension of metal particles to cleanse it of surfactants, resulting in a suspension depleted of such surfactants; andadding a peptizing agent to stabilize the cleansed particle solutes.2. The method of claim 1 , wherein the metal particles comprise metal nanoparticles with hydrodynamic sizes between 1 and 200 nm.3. The method of claim 2 , wherein the metal nanoparticles are stabilized by cationic surfactants.4. The method of claim 1 , wherein the polymeric detergent is anionic in nature.5. The method of claim 1 , wherein the peptizing agent is an anionic species.6. The method of claim 1 , wherein the peptizing agent is a zwitterionic species.7. The method of claim 1 , wherein the peptizing agent is a nonionic species.8. A method for converting CTAB-stabilized GNRs into citrate-stabilized GNRs claim 1 , comprising:filtering excess surfactant from a GNR-CTAB suspension to result in a concentrated GNR-CTAB suspension;subjecting GNR-CTAB suspension to at least one centrifugation and redispersion cycle with solutions containing a mild detergent to deplete CTAB below trace levels, resulting in a CTAB-free GNR suspension; andsubjecting CTAB-depleted GNR suspension to at least one centrifugation and redispersion cycle using sodium citrate solutions to produce suspensions of citrate-stabilized GNRs, devoid of detergent.9. The method of claim 8 , further comprising diluting the suspension of CTAB-stabilized GNRs to 25 mM CTAB.10. The method of claim 8 , further comprising filtering the suspension of CTAB-stabilized GNRs by stirred ultrafiltration.11. The method of claim 8 , wherein ...

Cerium oxide containing nanoparticles

A process for making cerium-containing oxide nanoparticles includes providing an aqueous reaction mixture containing a source of cerous ion, optionally a source of one or more metal ions (M) other than cerium, a source of hydroxide ion, at least one monoether carboxylic acid nanoparticle stabilizer wherein the molar ratio of said monoether carboxylic acid nanoparticle stabilizers to cerous ions is greater than 0.2, and an oxidant. The cerous ion is oxidized to ceric ion, thereby forming a product dispersion of cerium-containing oxide nanoparticles CeO 2-δ , wherein δ has a value of about 0.0 to about 0.5. The nanoparticles may have a mean hydrodynamic diameter from about 1 nm to about 50 nm, and a geometric diameter of less than about 45 nm.

AQUEOUS METAL COLLOID COMBUSTION ADDITIVE

The present invention relates to a combustion additive comprising a colloidal solution containing dispersed fine metal particles. The present invention also relates to a method for producing the colloid. More particularly the present teaching relates to a combustion additive having a colloid, wherein the colloid comprises metal particles providing in an alkaline aqueous solution, the metal particles being dispersed within that solution and having an average diameter in the range of 30 nm to 30 μm. The colloid can partly/fully substitute water of a water injection system or used as an air humidification component for combustion. 1. A combustion additive aqueous colloidal solution having:a pH of 8.0 to 12.5,a Total Dissolved Solid, TDS, value in the range of 1500 to 3500 ppm,an average particle size of 30 nm to 30 μm,sodium constituent having a concentration of 1500 to 3000 mg/L, andother metal constituents having a total concentration of 0.5 to 200 mg/L.2. The combustion additive colloidal solution of having claim 1 , when measured at 20° C.:a DC conductivity of 5 to 13 mS/cm anda surface tension of 50 to 70 mN/m.3. The combustion additive colloidal solution of further comprising an ammonia/ammonium constituent having a concentration of 3 to 10 mg/L at 20° C.4. A combustion additive mixture comprising the colloidal solution of mixed with at least one of:water;water miscible solvents;hydrogen peroxide; orsodium percarbonate.5. A method of water injection/air humidification for combustion claim 1 , wherein water is at least partially substituted by the colloidal solution of .6. A method of forming the colloidal solution claim 1 , the method comprising:providing an alkaline aqueous starting solution in an electrolysis bath, the electrolysis bath comprising a plurality of stainless steel electrodes, andeluting metal elements from the one or more of the plurality of electrodes using electrolysis to form the colloidal solution.7. The method of wherein the starting solution ...

Magnetic Fluid

The present invention is in the field of fluids and the like comprising magnetic particles, such as ferromagnetic particles, anti-ferromagnetic particles, ferrimagnetic particles, synthetic magnetic particles, paramagnetic particles, superparamagnetic particles, such as magnetic fluids, a method of stabilizing magnetic particles, use of these fluids and functionalized particles. Such fluids have a large variety of applications, such as sealants, as a sensor, in biomedics, etc. 2. High density dispersion according to claim 1 , comprising a combination of magnetic particles.3. High density dispersion according to claim 1 , further comprising additives claim 1 , such as a thickener in a concentration of 20-80 wt. % relative to the total weight of the dispersion claim 1 , such as a polymer claim 1 , an oligomer claim 1 , such as a polysaccharide claim 1 , a starch claim 1 , a gum claim 1 , silica claim 1 , a grease claim 1 , an elastomer claim 1 , and combinations thereof.4. High density dispersion according to claim 1 , comprising one or more of water claim 1 , an apolar liquid claim 1 , such as oil claim 1 , such as a perfluorinated oil claim 1 , such as a polyalphaolefin oil claim 1 , a polar liquid claim 1 , such as an alcohol claim 1 , a weak acid claim 1 , an aromatic claim 1 , and an ionic liquid claim 1 , and optional further additives.5. High density dispersion according to claim 1 , wherein the magnetic particles have an average size of 2 nm-10 μm claim 1 , and/orwherein the magnetic particles are one or more of ferromagnetic particles, anti-ferromagnetic particles, ferrimagnetic particles, synthetic magnetic particles, paramagnetic particles, superparamagnetic particles, such as particles comprising one or more of Fe, Co, Ni, Gd, Dy, Mn, Nd, Sm, and preferably one or more of O, B, C, N, such as iron oxide, such as ferrite, such as magnetite, and maghemite.6. High density dispersion according to claim 1 , wherein the weak acid is a carboxylic acid comprising 4 ...

Metal Oxide Nanoparticle Material

A zirconia nanoparticle material includes a zirconia nanoparticle and a carbonate coordinated on a surface of the zirconia nanoparticle. The carbonate is 1 to 10 parts by weight of the zirconia nanoparticle.

Process for synthesizing hybrid core-shell microparticles comprising a polymer core and a silicon dioxide shell with controlled structure and surface

Hybrid microparticle having a polymer core and a shell which surrounds the polymer core at least in sections and which has a silicon dioxide layer; characterized by an RF value, the RF value being defined as the ratio of an external surface area amenable to the adsorption of nitrogen to a surface area which is computable from an arithmetic mean diameter of the hybrid microparticle considered as an ideal sphere, where the shell has a structure selected from: closed and smooth, with the shell having an RF value of between 1 and 1.5; closed and hillocky, with the shell having an RF value of between 1.51 and 3; or open, with the shell having an RF value of greater than 3.01.

Color Changing Materials Arranged in Slow Particle Coloration Materials

Articles comprises iron oxide colloidal nanocrystals arranged within chains, wherein the chains of nanocrystals are embedded within a material used to form the article or a transfer medium used to transfer a color to the article are described. The material or transfer medium includes elastic properties that allow the nanocrystals to display a temporary color determined by the strength of an external force applied to the article, and the material or transfer medium includes memory properties that cause the displayed temporary color to dissipate when the external force is removed, wherein the dissipation of the displayed temporary color is sufficiently slow as to be visually observable by an average observer's unaided eye. 118.-. (canceled)19. A material comprising iron oxide colloidal nanocrystals arranged within chains ,wherein the chains of nanocrystals are embedded within the material,wherein the material allows the nanocrystals to elongate when an external force is applied to the material, wherein the nanocrystals display a color when elongated, wherein the color dissipates when the external force is no longer applied to the material.20. The material of claim 19 , wherein the color change is within a visible light spectrum or an ultraviolet light spectrum.21. The material of claim 19 , wherein the external force is application of a magnetic field to the chains of nanocrystals.22. The material of claim 19 , wherein the external force is a physical force applied to the material claim 19 , which causes a localized deformation of the material.23. The material of claim 19 , further comprising one or more stretch membranes incorporated into the material.24. The material of claim 23 , wherein the color displayed by the one or more stretch membranes corresponds to an amount of force applied to the one or more stretch membranes.25. An article comprising iron oxide colloidal nanocrystals arranged within chains claim 23 ,wherein the chains of nanocrystals are embedded ...

THERMALLY INSULATING MATERIALS INCLUDING SPHERICAL, HOLLOW INORGANIC PARTICLES

The invention concerns thermally insulating materials comprising the aforementioned particles, a process for the preparation of these particles and materials obtained by incorporation of these particles into matrices. The present invention also concerns inorganic spherical and hollow inorganic particles with low apparent density imparting thermal properties to various types of matrices in which they are dispersed. 113-. (canceled)14. A thermally insulating material comprising inorganic particles and a matrix , wherein the inorganic particles are spherical , micrometric with an average diameter of from 0.1 to 10 micrometers , hollow and have an apparent density of from 100 to 700 kg/m.15. The material of claim 14 , wherein the inorganic particles comprise MgO claim 14 , ZnO or ZrO claim 14 , optionally stabilized with rare earths claim 14 , mullite (SiO—AlO) claim 14 , alumina claim 14 , or said particles being doped or mixtures thereof.16. The material of claim 14 , wherein the inorganic particles are mullite particles.17. The material of claim 14 , wherein the matrix is a solid matrix claim 14 , said matrix comprising ceramics claim 14 , fibers claim 14 , foams claim 14 , enamel or a mixture thereof.18. Inorganic particles claim 14 , comprising spherical particles which are micrometric having an average diameter of from 0.1 to 10 micrometers claim 14 , hollow claim 14 , and have an apparent density of from 100 to 700 kg/m.19. The inorganic particles of claim 18 , which are mullite particles.20. The inorganic particles of claim 18 , having an average diameter of from 0.2 to 7 micrometers.21. The inorganic particles of claim 20 , having an average diameter of from 0.3 to 5 micrometers.22. A method of forming a thermal barrier claim 18 , which comprises employing the inorganic particles of claim 18 , in the formation of said thermal barrier.23. A thermally insulating material for construction claim 18 , comprising a matrix and the inorganic particles of claim 18 , and ...

Apparatus for Manipulating Color Changing Materials in Articles of Wear

Apparatuses for manipulating a color displayed by an article of wear comprising iron oxide colloidal nanocrystals arranged within chains are described. The apparatus includes (a) a magnetic field source, wherein a strength of a magnetic field generated by the magnetic field source is tunable to control the color displayed by the article of wear, and (b) an energy source, wherein energy generated by the energy source is applied to at least some of the chains of nanocrystals to soften materials within the article of wear immediately surrounding the chains of nanocrystals to which the energy is applied.

Gas dispersion manufacture of nanoparticulates, and nanoparticulate-containing products and processing thereof

In one aspect, the present invention relates to a method of making multi-phase particles that include nanoparticulates and matrix, which maintains the nanoparticulates in a dispersed state. A flowing gas dispersion is generated that includes droplets of a precursor medium dispersed in a gas phase. The precursor medium contains liquid vehicle and at least a first precursor to a first material and a second precursor to a second material. The multi-phase particles are formed from the gas dispersion by removing at least a portion of the liquid vehicle from the droplets of precursor medium. The nanoparticulates in the multi-phase particles include the first material and the matrix in the multi-phase particles includes the second material.

Method of Applying and Using Color Changing Materials in Articles of Wear

Articles of wear comprises iron oxide colloidal nanocrystals arranged within chains are described. The chains of nanocrystals display a color that is determined by a strength of a magnetic field applied to the chains of nanocrystals, wherein the color is maintained when the magnetic field is removed. 121.-. (canceled)22. An apparatus for manipulating a color displayed by an article of footwear or apparel comprising iron oxide colloidal nanocrystals arranged within chains , the apparatus comprising:a platform comprising a substantially flat surface; anda pulsating electromagnet configured to switch between generating a rapidly fluctuating magnetic field and a non-fluctuating magnetic field.23. The apparatus of claim 22 , wherein the rapidly fluctuating magnetic field creates transient currents in the chains of nanocrystals.24. The apparatus of claim 23 , wherein the transient currents lead to a softening or melting of materials within the article of footwear or apparel immediately surrounding the chains of nanocrystals.25. The apparatus of claim 24 , wherein the pulsating electromagnet is configured to switch to the non-fluctuating magnetic field after the materials have been softened or melted.26. The apparatus of claim 22 , wherein the substantially flat surface comprises a gap formed therein.27. The apparatus of claim 26 , wherein the gap is approximately 0.5 inches in width and approximately 8.5 inches in length.28. The apparatus of claim 22 , wherein the article of footwear or apparel comprises a roll of textile that is unrolled proximate a first end of the platform claim 22 , positioned adjacent the surface of the platform and the gap therein claim 22 , and re-rolled proximate a second end of the platform.29. An apparatus for manipulating a color displayed by a material or article of footwear or apparel comprising iron oxide colloidal nanocrystals arranged within chains claim 22 , the apparatus comprising:a platform configured to support the material or article ...

Method for preparing porous inorganic particles

A method for preparing porous inorganic particles is disclosed. The method includes the steps of: (a) preparing an emulsion comprising an inorganic precursor and a polar solvent; (b) adding an organic solvent to the emulsion of step (a) to swell emulsion particles; (c) mixing the swollen emulsion of step (b) with polymer particles having a positive charge on the surface thereof; (d) adding a surfactant to the mixture of step (c) and removing the organic solvent; (e) adding an initiator to the result of step (d) to polymerize the same; and (f) firing the result of step (e) to remove the polymer particles so as to form macropores.

Anti-Bed Bug Monoclonal Antibodies and Methods of Making and Uses Thereof

The present disclosure provides anti-bed bug monoclonal antibodies and antigen-binding fragments thereof as well as compositions and kits comprising the same. The present disclosure also provides methods of making monoclonal antibodies and antigen-binding fragments thereof and methods of using the same to detect bed bugs. 1. An antibody produced by a hybridoma deposited at the American Type Culture Collection (ATCC) under Accession Number PTA-122644 [BB2] or PTA-122645 [BB7] , or an antigen-binding fragment thereof.2. (canceled)3. A monoclonal antibody or an antigen-binding fragment thereof comprising the heavy and light chain complementarity determining regions of the antibody of .4. The antibody or antigen-binding fragment of claim 1 , comprising the heavy and light chain variable regions of the antibody of .5. The antibody or antigen-binding fragment of claim 1 , comprising the heavy and light chains of the antibody of .6. The antibody or antigen-binding fragment of claim 1 , wherein the antibody or antigen-binding fragment is capable of binding to a bed bug antigen in a lysate of whole bed bugs or an extract of collection paper comprising bed bug waste material.7. A mutant of the antibody or antigen-binding fragment of claim 1 , wherein the mutant is capable of binding to a bed bug antigen in a lysate of whole bed hugs or an extract of collection paper comprising bed bug waste material.8. (canceled)9. A conjugated monoclonal antibody or conjugated antigen-binding fragment claim 1 , comprising the antibody or antigen-binding fragment of claim 1 , and a detection agent.10. The conjugated antibody or conjugated antigen-binding fragment of claim 9 , wherein the detection agent is colloidal gold.11. The conjugated antibody or conjugated antigen-binding fragment of claim 9 , comprising the antibody produced by the hybridoma deposited at the ATCC under Accession Number PTA-122644 [BB2] claim 9 , or an antigen binding fragment thereof.12. The conjugated antibody or ...

Polyaluminum salts and their uses in preparation of high-purity colloidal aluminum-silica composite particles and zeolites

Disclosed are novel aqueous aluminum complex compositions and methods of making and using them. The novel compositions comprise very low halide content, even when made from aluminum chlorohydrate. The compositions find use in the production of zeolites, coatings, abrasives, binders, and refractories; and in the treatment of wastewater for example. The methods of making the novel compositions include passing a first aqueous aluminum complex composition through an anion exchange column or otherwise contacting the first composition with the anion exchange resin to provide a second aqueous aluminum complex composition that is different from the first aqueous aluminum complex composition. Also disclosed are methods of making zeolites and aqueous silica-alumina compositions from the novel aqueous aluminum complex compositions.

Biocompatible colloidal solution of silver nanoparticles in non-aqueous polar solvent and method of obtaining thereof

The present application relates to colloidal chemistry, specifically to methods of synthesising silver nanoparticle colloids in a non-aqueous solvent, preferably, in dimethyl sulfoxide. In particular these silver nanoparticles have an average size of 12-20 nm and are in a biocompatible colloidal solution.

System and Method for Manipulating Color Changing Materials

Systems and methods of manipulating a color displayed by an article of wear comprising iron oxide colloidal nanocrystals arranged within chains are described. Steps may include forming the article of wear from a raw material that include the chains of nanocrystals, applying a magnetic field to the raw material, applying energy to at least some of the chains of nanocrystals to soften materials within the raw material immediately surrounding the chains of nanocrystals to which the energy is applied, adjusting a strength of the magnetic field to control the color displayed by the raw material, removing the energy to allow the materials within the raw material immediately surrounding the chains of nanocrystals to harden and fix a location of the nanocrystals within the chains, and removing the magnetic field. 121-. (canceled)22. A method of manipulating a color displayed by at least one article comprising iron oxide colloidal crystals arranged within chains embedded within a material or a transfer medium , the method comprising:(a) applying a magnetic field to the at least one article;(b) applying energy to at least some of the chains of nanocrystals to soften the material or transfer medium immediately surrounding the chains of nanocrystals to which the energy is applied;(c) adjusting a strength of the magnetic field until a color displayed by the at least one article substantially corresponds to a pre-selected color;(d) removing the energy to allow the material or transfer medium immediately surrounding the chains of nanocrystals to harden and fix a location of the nanocrystals within the chains; and(e) removing the magnetic field.23. The method of claim 22 , further comprising:placing the at least one article on a platform, wherein the magnetic field is concentrated and oriented perpendicular to the platform; andapplying the energy via a laser controlled by a numerical control device.24. The method of claim 22 , wherein the at least one article comprises at least one ...

Surface-Modified Metal Colloids and Production Thereof

Metal colloids are surface-modified with low-molecular-weight compounds. In order to produce the metal colloids, metal ions are reduced in the presence of surface modifiers and then purified. The method is also suitable for the surface modification of metal colloids. 1. A process for producing metal colloids comprising: a1) at least one type of metal ion;', 'a2) at least one organic reducing agent;', 'a3) at least one complexing agent comprising at least one functional group which can interact with the produced metal colloids, where the reducing agent and/or the oxidized form of the reducing agent can act as a complexing agent; and', 'a4) at least one solvent;, 'a) production of a composition comprisingb) thermal and/or photochemical activation during or after the production of the composition;c) reduction of the at least one type of metal ions to metal colloids; andd) purification of the modified metal colloids.2. The process as claimed in claim 1 , wherein the purification of the metal colloids takes place by crossflow filtration.3. The process as claimed in claim 1 , wherein the metal ions are ions of the metals of groups 8 to 16.4. The process as claimed in claim 1 , wherein the metal ions are ions of the metals Cu claim 1 , Ag claim 1 , Au claim 1 , Ni claim 1 , Pd claim 1 , Pt claim 1 , Co claim 1 , Rh claim 1 , Ir claim 1 , Ru claim 1 , Os claim 1 , Se claim 1 , Te claim 1 , Cd claim 1 , Bi claim 1 , In claim 1 , Ga claim 1 , As claim 1 , Ti claim 1 , V claim 1 , W claim 1 , Mo claim 1 , Sn and/or Zn.5. The process as claimed in claim 1 , wherein the metal ions are introduced as metal salts into the composition.6. The process as claimed in claim 5 , wherein the salts are selected from the group consisting of CuCl claim 5 , CuCl claim 5 , CuSO claim 5 , Cu(NO) claim 5 , AgNO claim 5 , H(AuCl) claim 5 , PdCl claim 5 , ZnCl claim 5 , ZnSO claim 5 , Cu(CHCOO) claim 5 , copper acetylacetonate claim 5 , CuCO claim 5 , Cu(ClO) claim 5 , and Cu(OH).7. The process as ...

Colloidal Particles Functionalized Homogeneously by Biomolecules

The present invention relates to a method for producing a colloid comprising functionalised liquid colloidal particles. The invention also relates to such a colloid and to the uses thereof. 1. A method for obtaining a colloid comprising functionalized liquid colloidal particles comprising the following steps:a) dispersing an oil in an aqueous solution comprising a fragmentation surfactant, leading to obtaining an emulsion comprising oil droplets suspended in an aqueous phase;b) dissolving lipids aimed at functionalizing the oil droplets in a polar aprotic solvent, leading to obtaining a functionalization solution;c) preparing a functionalization mixture comprising the emulsion and the functionalization solution, the volume fraction of the polar aprotic solvent in the functionalization mixture being comprised between 1 and 15%;d) incubating the functionalization mixture, during which at least a part of the lipids initially present in the functionalization solution are adsorbed on the surface of the oil droplets initially present in the emulsion; ande) eliminating non-adsorbed lipids during step d);thus allowing to obtain a colloid comprising functionalized liquid colloidal particles consisting of the oil droplets obtained after step a) on the surface of which the lipids are adsorbed during step d).2. The method according to claim 1 , wherein the polar aprotic solvent is selected from the group consisting of DMSO claim 1 , ethyl acetate claim 1 , acetonitrile claim 1 , pyridine claim 1 , butanone claim 1 , triethylamine claim 1 , DMF claim 1 , and mixtures thereof.3. The method according to claim 1 , wherein the oil dispersed in aqueous solution is a mineral oil claim 1 , a vegetable oil claim 1 , a silicon oil claim 1 , a halogenated oil claim 1 , or a mixture thereof.4. The method according to claim 1 , wherein the lipids comprise at least one fluorophore group and/or at least one biomolecule optionally grafted via a linker.5. The method according to claim 1 , ...

HIGH REFRACTIVE INDEX NANOPARTICLES

Disclosed is a synthesis method for preparing tantalum pentoxide colloid including the steps of: a. Providing a transparent solution of amorphous tantalum pentoxide, b. Subjecting the solution to solvothermal conditions in order to form tantalum pentoxide nanocrystals, c. Dispersing the tantalum pentoxide nanocrystals in a solvent so as to form a tantalum pentoxide colloid. 1. Synthesis method for preparing tantalum pentoxide colloid comprising the steps of:a. Providing a transparent solution of amorphous tantalum pentoxide,b. Subjecting said solution to solvothermal conditions in order to form tantalum pentoxide nanocrystals,c. Dispersing said tantalum pentoxide nanocrystals in a solvent so as to form a tantalum pentoxide colloid.2. Synthesis method according to claim 1 , wherein the transparent solution of amorphous tantalum pentoxide is provided through adding an acidic aqueous solution to an amorphous tantalum pentoxide aqueous solution.3. Synthesis method according to claim 1 , wherein the transparent solution of amorphous tantalum pentoxide is provided through adding an acidic aqueous solution of boric acid and an aqueous solution of organic ammonium fluoride to an amorphous tantalum pentoxide aqueous solution.4. Synthesis method according to claim 1 , wherein step b includes heating the solution by an oven.5. Synthesis method according to claim 1 , wherein step b includes heating the solution through microwaves claim 1 , preferably between 120 and 200° C.6. Synthesis method according to claim 1 , wherein step c is performed by ultrasonic dispersion.7. Synthesis method according to claim 1 , further comprising a solvent exchange step to obtain tantalum pentoxide colloid in a hydroalcoholic mixture.8. Synthesis method according to claim 1 , wherein the tantalum pentoxide colloid is a colloid dispersed in water.9. Synthesis method according to claim 1 , further comprising a step of concentrating the obtained tantalum pentoxide colloid.10. Synthesis method ...

METHOD OF RELIABLE PARTICLE SIZE CONTROL FOR PREPARING AQUEOUS SUSPENSION OF PRECIOUS METAL NANOPARTICLES AND THE PRECIOUS METAL NANOPARTICLE SUSPENSION PREPARED BY THE METHOD THEREOF

Disclosed is a method for making a colloidal suspension of precious metal nanoparticles. The method comprises providing a target material comprising a precious metal in a liquid dispersion medium in an ablation container. The dispersion medium has an electrical conductivity within a predetermined conductivity range. Laser pulses are used to generate the nanoparticles from the target in the container. While generating the nanoparticles the electrical conductivity of the dispersion medium is monitored and maintained within the predetermined range and thereby the generated nanoparticles are produced within a predetermined size range. The generated nanoparticles are used to form a colloidal suspension. 1. A method of making a colloidal suspension of precious metal nanoparticles , the method comprising the steps of:a) providing a target material comprising a precious metal in contact with a liquid dispersion medium having an electrical conductivity within a predetermined conductivity range, said target material and said dispersion medium in contact with an ablation container;b) generating a plurality of precious metal nanoparticles by delivering laser pulses to said target material in said ablation container;c) prior to or while generating said plurality of precious metal nanoparticles monitoring and optionally adjusting said electric conductivity of said dispersion medium to maintain said electric conductivity of said dispersion medium in said predetermined conductivity range, wherein said predetermined conductivity range results in said precious metal nanoparticles having a predetermined size range; andd) forming a colloidal suspension of said precious metal nanoparticles.2. The method of comprising the further steps of:generating a plurality of populations of nanoparticles of a precious metal, each population being generated in a dispersion medium having a different maintained electrical conductivity;collecting each population and measuring the particle size and ...

Platinum Oxide Colloidal Solution, Manufacturing Method Therefor, Manufacture Apparatus Thereof, and Method of Injection Noble Metal of Boiling Water Nuclear Power Plant

An aqueous solution of alkali hexahydroxo platinate is produced. As a alkali hexahydroxo platinate, sodium hexahydroxoplatinate or potassium hexahydroxoplatinate is used. The aqueous solution of alkali hexahydroxo platinate is passed through a hydrogen form cation exchange resin layer in a cation exchange resin tower. The aqueous solution of alkali hexahydroxo platinate makes contact with the hydrogen form cation exchange resin of the hydrogen form cation exchange resin layer, thus a suspension of hexahydroxo platinic is generated. If gamma rays are irradiated to the suspension, a platinum oxide colloidal solution in which colloidal particles including a platinum dioxide, a platinum monoxide, and a platinum hydroxide exist is generated. In a platinum oxide colloidal solution, the content of impurities is little and a noble metal compound is dispersed stably in water. 1. A method of manufacturing a platinum oxide colloidal solution comprising an ion exchange process of substituting hydrogen ions for cations included in an aqueous solution of hexahydroxoplatinate salt and generating a suspension; anda colloid generation process of irradiating gamma rays to said suspension.2. The method of manufacturing a platinum oxide colloidal solution according to claim 1 , wherein said aqueous solution comes into contact with a hydrogen form cation exchange resin in said ion exchange process.3. The method of manufacturing a platinum oxide colloidal solution according to claim 1 , wherein said hexahydroxoplatinate salt is sodium hexahydroxoplatinate or potassium hexahydroxoplatinate.4. The method of manufacturing a platinum oxide colloidal solution according to claim 1 , wherein said aqueous solution includes alcohol.5. The method of manufacturing a platinum oxide colloidal solution according to claim 4 , wherein when the number of carbons configuring a molecule of said alcohol is n claim 4 , a concentration of said alcohol is lower than 0.17/n (mM).6. The method of manufacturing a ...

ZIRCONIA SOL AND METHOD FOR MANUFACTURING SAME

Provided are a zirconia sol having a transmittance of 45% or more at a wavelength of 400 nm, having a transmittance of 75% or more at a wavelength of 550 nm, and containing zirconia particles in an amount of 20 wt % or more, and a method for manufacturing the zirconia sol. 1. A zirconia sol ,wherein the zirconia sol has a transmittance of 45% or more at a wavelength of 400 nm, has a transmittance of 75% or more at a wavelength of 550 nm, and contains zirconia particles in an amount of 20 wt % or more.2. The zirconia sol according to claim 1 ,wherein the zirconia sol has a transmittance of 50% or more at a wavelength of 400 nm, and has a transmittance of 80% or more at a wavelength of 550 nm.3. The zirconia sol according to claim 1 ,wherein the zirconia sol contains an alkali metal oxide (M2O, M indicates an alkali metal) with respect to zirconia in an M2O/ZrO2 mole ratio of 0.02×10-2 or more and 0.4×10-2 or less.4. The zirconia sol according to claim 3 ,wherein the alkali metal M is Na.5. The zirconia sol according to claim 3 ,wherein the alkali metal M is Li.6. The zirconia sol according to claim 1 ,wherein the zirconia sol has a haze value of 12% or less.7. The zirconia sol according to claim 1 ,wherein the zirconia sol has an average particle size of 10 nm or less.8. The zirconia sol according to claim 1 ,wherein the zirconia sol includes a monoclinic phase and a tetragonal phase as a crystal phase of zirconia.9. The zirconia sol according to claim 1 ,wherein a dispersion medium contains aliphatic alcohols, polyhydric alcohols, aliphatic ketones, or a mixture of two or more of aliphatic alcohols, polyhydric alcohols, and aliphatic ketones.10. A method for manufacturing the zirconia sol according to claim 1 , comprising:a first step of heating an alkali metal solution to 60° C. or more;a second step of adding ⅓ to ⅔ of a defined addition amount of a zirconium salt solution to the solution obtained in the first step;a third step of aging the solution obtained in ...

METHOD OF PREPARING POSITIVE ELECTRODE MATERIAL FOR LITHIUM SECONDARY BATTERY, POSITIVE ELECTRODE MATERIAL FOR LITHIUM SECONDARY BATTERY, AND LITHIUM SECONDARY BATTERY INCLUDING THE POSITIVE ELECTRODE MATERIAL

The present invention relates to a method of preparing a positive electrode material for a lithium secondary battery including a first step of synthesizing a lithium transition metal oxide represented by Chemical Formula 1, a second step of preparing lithium transition metal oxide powder by grinding the lithium transition metal oxide, a third step of preparing a positive electrode material including an alumina coating layer by mixing as well as dispersing the lithium transition metal oxide powder in an alumina nanosol, and a fourth step of drying the positive electrode material, a positive electrode material for a lithium secondary battery prepared by the above method, and a lithium secondary battery including the positive electrode material, 1. A method of preparing a positive electrode material for a lithium secondary battery , the method comprising steps of:a first step of synthesizing a lithium transition metal oxide represented by Chemical Formula 1;a second step of preparing lithium transition metal oxide powder by grinding the lithium transition metal oxide;a third step of preparing a positive electrode material including an alumina coating layer by mixing as well as dispersing the lithium transition metal oxide powder in an alumina nanosol; and {'br': None, 'sub': (1+a)', '(1−a−b−c)', 'b', 'c', 'n, 'Li(NiMnCo)O\u2003\u2003[Chemical Formula 1]'}, 'a fourth step of drying the positive electrode material,'}where 0≦a≦0.1, 0≦b≦1, 0 Подробнее

Preparation of highly stable concentrated dispersions of silver nanoparticles using synergistic dispersing agents

Methods for preparing highly stable concentrated dispersions of silver nanoparticles and described herein. Contemplated methods comprise combining a selected polysaccharidic dispersant with a selected non-reacting dispersant to yield concentrated silver dispersions with enhanced stability and lowered undesirable residual organics. Contemplated methods further comprise selecting an appropriate source of silver ions to reduce the ionic strength of the reaction medium and final silver dispersions.

Apparatus for Manipulating Color Changing Materials in Articles of Wear

Apparatuses for manipulating a color displayed by an article of wear comprising iron oxide colloidal nanocrystals arranged within chains are described. The apparatus includes (a) a magnetic field source, wherein a strength of a magnetic field generated by the magnetic field source is tunable to control the color displayed by the article of wear, and (b) an energy source, wherein energy generated by the energy source is applied to at least some of the chains of nanocrystals to soften materials within the article of wear immediately surrounding the chains of nanocrystals to which the energy is applied.

Metal colloidal solution and method for producing same

The present invention is a metal colloid solution comprising: colloidal particles consisting of metal particles consisting of one or two or more metal(s) and a protective agent bonding to the metal particles; and a solvent as a dispersion medium of the colloidal particles, wherein: a chloride ion concentration per a metal concentration of 1 mass % is 25 ppm or less; and a nitrate ion concentration per a metal concentration of 1 mass % is 7500 ppm or less. In the present invention, adsorption performance can be improved with adjustment of the amount of the protective agent of the colloidal particles. It is preferable to bind the protective agent of 0.2 to 2.5 times the mass of the metal particles.

Magnetic Fluid

The present invention is in the field of fluids and the like comprising magnetic particles, such as ferromagnetic particles, anti-ferromagnetic particles, ferrimagnetic particles, synthetic magnetic particles, paramagnetic particles, superparamagnetic particles, such as magnetic fluids, a method of stabilizing magnetic particles, use of these fluids and functionalized particles. Such fluids have a large variety of applications, such as sealants, as a sensor, in biomedics, etc. 115.-. (canceled)18. The method as claimed in claim 16 , wherein the magnetic particles have an average size of 2 nm-200 nm.19. The method as claimed in claim 16 , wherein the magnetic particles comprise magnetite or maghemite.20. The method as claimed in claim 16 , wherein the functionalized magnetic particle is provided as a dispersion.21. The method as claimed in claim 20 , wherein the magnetic particles are present in an amount >15 vol. % relative to a total volume of the dispersion claim 20 , and wherein the ionic liquid is present in an amount of 5·10to 0.1 mole acid/g magnetic particle on the magnetic particle.22. The method as claimed in claim 20 , wherein the dispersion is obtained byProviding a dispersion with magnetic particles{'sup': '−6', 'Providing a ionic liquid functionalized with a functional group chosen from carboxylic acid and oxysilane, in an amount of 5*10−0.1 Mole/g magnetic particle, and interacting the functionalized ionic liquid and the magnetic particles'}Maintaining the pH at a basic (alkaline) value;Washing the dispersion one to four timesRedispersing the washed dispersion in a solvent.23. The method as claimed in claim 16 , wherein the polymer is polyethylene terephthalate (PET). This application is a continuation of International Application PCT/NL2014/050149, entitled “Magnetic Fluid”, to Ioniqa B. V., filed on 12 Mar. 2014, which is a continuation to Netherlands Patent Application with Serial No. 2010439, filed 12 Mar. 2013, and the specification and claims ...

REACTOR

The invention relates to an apparatus and methods for producing liquid colloids such as suspensions of nanoparticles, in which liquid feedstock materials are reacted on a reaction surface of a rotatable plate. The apparatus has a first plate () mounted for rotation about a rotation axis (), the first plate () providing a reaction surface () having a concave portion; first () and second () inlet lines arranged to introduce respective first and second liquid feedstock materials to the reaction surface (); and a collection unit () arranged to collect a reaction product formed from reaction of the liquid feedstock materials as a liquid colloid ejected from an outer edge of the plate (). 1. An apparatus for producing a liquid colloid , the apparatus comprising:a first plate mounted for rotation about a rotation axis, the first plate providing a reaction surface having a concave portion;first and second inlet lines arranged to introduce respective first and second liquid feedstock materials to the reaction surface; anda collection unit arranged to collect a reaction product formed from reaction of the liquid feedstock materials as a liquid colloid ejected from an outer edge of the plate.2. The apparatus of claim 1 , wherein the reaction surface further comprises a side wall portion extending from the concave portion.3. The apparatus of claim 2 , wherein the side wall portion is conical.4. (canceled)5. The apparatus of claim 2 , wherein the side wall portion comprises a surface comprising at least one groove.6. (canceled)7. (canceled)8. The apparatus of wherein the concave portion of the reaction surface comprises a plurality of concentric grooves.9. (canceled)10. The apparatus of wherein the first plate is mounted to an end of a first rotatable axle for rotation about the rotation axis.11. The apparatus of wherein the first and/or second inlet lines extend along the first rotatable axle.12. The apparatus of comprising a second plate mounted for rotation about the rotation ...

DISPERSION METHOD

A method for producing a solution of dispersed graphenes comprising contacting graphite having a dimension in the a-b plane of 10 μm or less with an electronic liquid comprising a metal and a polar aprotic solvent, and solutions of dispersed graphenes which may be obtained by such a method are described. 1. A method for producing a solution of dispersed graphenes comprising:contacting graphite having a dimension in the a-b plane of 10 μm or less with an electronic liquid comprising a metal and a polar aprotic solvent.2. A method according to claim 1 , wherein the polar aprotic solvent is an amine solvent and/or wherein contacting the graphite with the electronic liquid produces a solution of dispersed graphenes.3. (canceled)4. A method according to claim 1 , wherein contacting the graphite with the electronic liquid produces a graphite intercalation compound and the method further comprises a step of contacting the graphite intercalation compound with a second polar aprotic solvent.5. A method according to claim 1 , wherein the graphite has a dimension of 5000 nm or less and/orthe metal is an alkali metal and/or wherein the metal is included in the electronic liquid in an amount such that the ratio of metal atoms in the electronic liquid to carbon atoms in the graphite with which the electronic liquid is contacted is about 1:6 or less, and/orthe metal is selected from the group consisting of alkali metals and alkaline earth metals, orthe metal is an alkali metal.68-. (canceled)9. A method according to claim 2 , wherein the amine solvent is ammonia or methylamine.1011-. (canceled)12. A method according to claim 4 , wherein the second polar aprotic solvent is selected from the group consisting of tetrahydrofuran claim 4 , dimethyl sulfoxide claim 4 , ethers claim 4 , dimethylformamide claim 4 , N-methyl pyrrolidone claim 4 , amides claim 4 , acetonitrile claim 4 , CSand amine solvents.13. A method according to claim 12 , wherein the second polar aprotic solvent is ...

FLUID FOR PURIFYING HEAT ENGINES USING STABLE SUSPENSIONS OF METAL COLLOIDAL PARTICLES, AND METHODS FOR PREPARING SAID FLUID

The present invention describes a fluid which is suitable for the decontamination of heat engines which can carry out both the catalytic reduction of oxides of nitrogen (NOx) contained in exhaust gases and assist in the regeneration of the particulate filter (PF), said fluid being in the form of a stable suspension of colloidal particles, these colloidal particles being dispersed in an aqueous solution containing at least one reducing agent or at least one precursor of a reducing agent for NOx. The invention also describes several embodiments for the preparation of said fluid. 1. A fluid for the decontamination of heat engines , in particular diesel engines , in order to be able to carry out the selective catalytic reduction of oxides of nitrogen contained in exhaust gases as well as assisting in the regeneration of the particulate filter by catalytic combustion of particles of soot deposited in the particulate filter (the function termed assistance in the regeneration of PF) , said fluid being in the form of a stable suspension comprising colloidal particles of one or more particles of metal oxides or oxyhydroxides or metal carbonates dispersed in an aqueous solution containing at least one reducing agent or at least one precursor of a reducing agent for the NOx , the metals of the metal oxides or oxyhydroxides or carbonates being selected from the following list of metals: Fe , Cu , Ni , Co , Zn , Mn , Ti , V , Sr , Pt , Ce , Ca , Li , Na , Nb , and preferably from the following sub-list: Fe , Cu , Ce , Sr.2. The fluid for the decontamination of heat engines claim 1 , in particular diesel engines claim 1 , as claimed in claim 1 , in which the oxides of iron are selected from the following list claim 1 , used alone or as a mixture: wustite FeO claim 1 , haematite α-FeO claim 1 , maghemite γ-FeOand magnetite.3. The fluid for the decontamination of heat engines claim 1 , in particular diesel engines claim 1 , as claimed in claim 1 , in which the iron oxyhydroxides ...

COMPOSITIONS OF MATTER COMPRISING SUSPENDED NANOPARTICLES AND RELATED

A composition of matter includes a liquid and nanoparticles suspended in the liquid. The nanoparticles each include silica, alumina, and an organosilicon functional group having a molecular weight of at least 200. A method includes functionalizing a surface of nanoparticles with an organosilicon functional group and dispersing the nanoparticles in a liquid to form a suspension. The functional group has a molecular weight of at least 200. The nanoparticles each include silica and alumina at a surface thereof. 1. A composition of matter , comprising:a liquid; andnanoparticles suspended in the liquid, the nanoparticles each comprising silica, alumina, and an organosilicon functional group.2. The composition of claim 1 , wherein the organosilicon functional group comprises (3-glycidyloxypropyl)trimethoxysilane.3. The composition of claim 1 , wherein the liquid comprises aqueous brine.4. (canceled)5. The composition of claim 3 , wherein the liquid comprises dissolved multivalent ions.6. The composition of claim 5 , wherein the dissolved divalent ions are selected from the group consisting of Mg claim 5 , Ca claim 5 , Sr claim 5 , Ba claim 5 , Fe claim 5 , Fe claim 5 , Cu claim 5 , CO claim 5 , SO claim 5 , SO claim 5 , S claim 5 , and PO.7. The composition of claim 1 , wherein the liquid comprises a glycol.8. The composition of claim 1 , wherein at least 90% of the nanoparticles remain suspended in the liquid over a time period of 30 days at 30° C.9. The composition of claim 1 , wherein at least 90% of the nanoparticles remain suspended in the liquid over a time period of 10 days at 70° C.10. The composition of claim 1 , wherein at least 90% of the nanoparticles remain suspended in the liquid over a time period of 24 hours at 90° C.11. A method claim 1 , comprising:functionalizing nanoparticles with an organosilicon functional group, the nanoparticles each comprising silica and alumina; andforming a suspension of the nanoparticles in a liquid.12. The method of claim 11 , ...

Method for Producing Zirconia Colloids

The present invention pertains to a method for producing a colloidal suspension of zirconia particles, comprising the following successive steps: a) subjecting a mixture of zirconium oxychloride and an alkali metal halide in an aqueous solvent to hydrothermal treatment at a temperature above 150° C., so as to obtain a suspension in the form of a two-phase mixture comprising a slurry and a supernatant, b) without first peptizing it, desalting said suspension so as to form a colloidal suspension of zirconia.

Metal Oxide Nanoparticle Material

A zirconia nanoparticle material includes a zirconia nanoparticle and a carbonate coordinated on a surface of the zirconia nanoparticle. The carbonate is 1 to 10 parts by weight of the zirconia nanoparticle.

IMPROVED PRECIOUS METAL NANOPARTICLES

A method for preparing a colloidal dispersion of precious metal nanoparticles free of organic adsorbates that have a molar weight above 100 g/mol, the colloidal dispersion of the precious metal nanoparticles obtained by the method according to the invention, solid and re-dispersed precious metal nanoparticles and products comprising colloidally dispersed or solid precious metal nanoparticles. 1. A method for preparing a colloidal dispersion of precious metal nanoparticles free of organic adsorbates that have a molar weight above 100 g/mol , the method comprising:a) providing at least one inorganic precursor for the precious metal nanoparticles, a mono-alcoholic solvent system comprising at least one mono-alcohol, and a base, wherein the at least one inorganic precursor comprises a precious metal selected from the group consisting of Pt, Pd, Ir, Ru, and combinations thereof, and the mono-alcohol of the mono-alcoholic solvent system is methanol, ethanol, propanol, or a combination thereof,b) mixing the at least one inorganic precursor, the mono-alcoholic solvent system and the base in the absence of polymers, ligands, capping agents and surfactants, thereby obtaining a reaction mixture, so as to reduce the at least one inorganic precursor with the mono-alcoholic solvent system, andc) obtaining the colloidal dispersion of precious metal nanoparticles free of organic adsorbates that have a molar weight above 100 g/mol.2. The method according to claim 1 , wherein in step a) the at least one inorganic precursor comprises a first inorganic precursor for the precious metal nanoparticles and a second inorganic precursor for the precious metal nanoparticle claim 1 , and the first inorganic precursor comprises a first metal selected from the group consisting of Pt claim 1 , Pd claim 1 , Ir claim 1 , Ru claim 1 , and combinations thereof claim 1 , wherein the first metal in the first inorganic precursor differs from a second metal in the second inorganic precursor claim 1 , so ...

COLLOIDS OF INORGANIC NANOCRYSTALS IN MOLTEN MEDIA AND RELATED METHODS

Colloids comprising inorganic nanocrystals dispersed in a molten salt or a liquid metal are provided. The molten salt may comprise an ion which is a Lewis acid or a Lewis base in the presence of the inorganic nanocrystals. Solid composites formed from the colloids are also provided. Methods of using the colloids as media for inducing chemical transformations using the inorganic nanocrystals are also provided. 1. A colloid comprising inorganic nanocrystals dispersed in a molten salt or a liquid metal , wherein the molten salt comprises an ion which is a Lewis acid or a Lewis base in the presence of the inorganic nanocrystals.2. The colloid of claim 1 , wherein the inorganic nanocrystals are dispersed in the molten salt.3. The colloid of claim 2 , wherein the molten salt is a molten inorganic salt.4. The colloid of claim 3 , wherein the molten inorganic salt has a melting point of below 350° C.5. The colloid of claim 3 , wherein the molten inorganic salt comprises one or more metal halides or metal thiocyanates or combinations thereof.6. The colloid of claim 3 , wherein the molten inorganic salt does not comprise a nitrate salt or a nitrite salt or a combination thereof.7. The colloid of claim 2 , wherein the molten salt is an ionic liquid.8. The colloid of claim 7 , wherein the ionic liquid comprises a halide anion or a thiocyanate anion.9. The colloid of claim 1 , wherein the nanocrystals are metal nanocrystals claim 1 , metal alloy nanocrystals claim 1 , semiconductor nanocrystals claim 1 , metal oxide nanocrystals claim 1 , metalloid oxide nanocrystals claim 1 , or a combination thereof.10. The colloid of claim 1 , wherein the colloid is substantially free of organic capping ligands.11. The colloid of claim 1 , wherein the nanocrystals comprise no more than about 10 weight % of the colloid.12. A solid composite formed from the colloid of claim 1 , the colloid comprising the inorganic nanocrystals dispersed in the liquid metal.13. An object comprising two metal ...

STRUCTURED ZIRCONIUM SOLUTIONS

This invention relates to azirconium solution or sol comprising: (a) zirconium, (b) nitrate, acetate and/or chloride ions, and (c) one or more complexing agents being an organic compound comprising at least one of the following functional groups: an amine, an organosulphate, a sulphonate, a hydroxyl, an ether or a carboxylic acid group, wherein the molar ratio of components (a):(b) is 1:0.7 to 1:4.0, the molar ratio of components (a):(c) is 1:0.0005 to 1:0.1, and the pH of the zirconium solution or sol is less than 5. The invention also relates to a process for preparing a zirconium solution or sol, the process comprising the steps of: (a) dissolving a zirconium salt in nitric, acetic and/or hydrochloric acid, and (b) adding one or more complexing agents to the resulting solution, the one or more complexing agents being an organic compound comprising at least one of the following functional groups: an amine, an organosulphate, a sulphonate, a hydroxyl, an ether or a carboxylic acid group, and (c) heating the solution or sol to a temperature of at least 75° C. In addition, the invention relates to products formed from the zirconium solution or sol or obtainable by the process. 2. A zirconium solution or sol as claimed in wherein when the solution or sol comprises nitrate ions as component (b) claim 1 , the molar ratio of components (a):(b) is 1:0.8 to 1:2.0; when the solution or sol comprises acetate ions as component (b) claim 1 , the molar ratio of components (a):(b) is 1:1.5 to 1:4.0; and when the solution or sol comprises chloride ions as component (b) claim 1 , the molar ratio of components (a):(b) is 1:0.7 to 1:2.2.3. A zirconium solution or sol as claimed in claim 1 , comprising nitrate ions as component (b).4. A zirconium solution or sol as claimed in having a refractive index of at least 1.34.5. A zirconium solution or sol as claimed in claim 1 , wherein the conductivity in mS/cm is at least 10% higher after being heated to a temperature of 94° C. at a ...

Ferrous Modified Selenium Sol for Inhibiting Accumulation of Cadmium and Arsenic in Rice and Preparation Method and Application Thereof

A ferrous modified selenium sol for inhibiting accumulation of cadmium and arsenic in rice and the preparation method and application thereof are disclosed. The method includes: dissolving an iron-containing compound and a selenium-containing compound into water; adding a reductant to the solution, and stirring until no more precipitation is generated, then adding carbonate, continuing to stir until no more precipitation is generated, and then filtering, taking the precipitation, and washing to obtain the precipitation of the selenium element and ferrous carbonate; adding an emulsifier to a citric acid buffer solution to obtain an emulsified citric acid buffer solution; adding the precipitation of the selenium element and ferrous carbonate to the emulsified citric acid buffer solution to obtain a sol system; and evaporating to concentrate the sol system, and adjusting the pH to 4.5-8.5 to obtain a ferrous modified selenium sol for inhibiting the accumulation of cadmium and arsenic in rice.

Porous hollow shell wo3/ws2 nanomaterial and method of preparing same

Provided is a method for the preparation of a porous hollow shell WO 3 /WS 2 nanomaterial, comprising: (1) adding a hexavalent tungsten salt to a sol A comprising mesocarbon microbeads, and stirring to obtain a sol B; (2) drying and grinding the sol B, and then heating a resulting powder at 200-500° C. for 0.5-2 hours to obtain a porous hollow shell WO 3 nanocrystalline material; (3) placing the porous hollow shell WO 3 nanocrystalline material obtained by Step 2 and a sulfur powder separately in a vacuum furnace, controlling such that a degree of vacuum is −0.01 to −0.1 MPa and a temperature is 200-500° C., and reacting for 0.5-3 hours to obtain a WO 3 /WS 2 porous hollow shell nanocrystalline material. Also provided is a porous hollow shell WO 3 /WS 2 nanocrystalline material obtained by the method.

METAL DISPERSION WITH INCREASED STABILITY

The invention relates to metal dispersions comprising 50 to 80 wt % of silver nanoparticles, 15 to 45 wt % of water and a dispersant, wherein the dispersant comprises copolymers comprising 1-99 wt % of structural units of formula (1), 2. The metal dispersion as claimed in claim 1 , wherein A and/or B are an ethylene or propylene group or A is a propylene group and B is an ethylene group or A is a propylene group and B is an ethylene group.3. The metal dispersion as claimed in claim 1 , wherein m=2 to 7 and n=50 to 200.4. The metal dispersion as claimed in claim 1 , further comprising a solvent selected from the group consisting of water-soluble mono-alcohols claim 1 , water-soluble dialcohols claim 1 , and ethoxylated monoalcohols.6. The metal dispersion as claimed in claim 1 , wherein the structural units of formula (2) derive from N-vinylimidazole claim 1 , N-vinylpyrrolidone claim 1 , N-vinylcaprolactam claim 1 , acrylic acid or methacrylic acid.7. The metal dispersion as claimed in claim 1 , wherein the dispersion comprises 1-9 wt % of the dispersant.8. The metal dispersion as claimed in claim 1 , wherein the dispersion comprises additives in an amount of 0.1 to 1.0 wt %.9. The metal dispersion as claimed in claim 1 , wherein the particle size of the silver nanoparticles is between 5 and 100 nm in at least one dimension.10. The metal dispersion as claimed in claim 1 , wherein conductivity values of at least 1.8 E06 S/m are achieved by sintering at temperatures of 90° C.12. A method for producing a composition comprising the step of adding a metal dispersion as claimed in to the composition during the manufacture of the composition claim 1 , wherein the composition is selected from the group consisting of inks claim 1 , paints claim 1 , coatings and graphic printed matter.13. A method for producing an electrically conductive coating comprising the step of adding a metal dispersion as claimed in to the electrically conductive coating during the manufacture of the ...

WATER-SOLUBLE SOLID OR SEMI-SOLID DISPERSION OF PARTICLES

Disclosed are solid or semisolid compositions the including finely divided particles and a water-soluble matrix that dissolves and disperses the particles when in contact with water. Also disclosed are kits for reducing and/or inhibiting odor formation on garment. The kit include one or more containers, wherein at least one of the one or more container includes solid or semisolid compositions the including finely divided particles and a water-soluble matrix that dissolves and disperses the particles when in contact with water. An edible silver delivery system including the compositions is disclosed as are methods of delivering silver to a subject in need thereof. 1. A solid or semisolid composition , comprising:finely divided particles; anda water-soluble matrix that dissolves and disperses the particles when in contact with water, wherein the moisture content of the matrix is in the range or between about 0.1% and 20% by weight.2. The composition of claim 1 , wherein the water-soluble matrix comprises one or more water soluble polymers.3. The composition of claim 2 , wherein the one or more water soluble polymers comprises one or more of biopolymers claim 2 , polysaccharides claim 2 , sugar alcohols claim 2 , polyacrylic acid (PAA) and copolymers claim 2 , polyvinyl alcohol claim 2 , polyacrylamides (PAM) claim 2 , polyethylene glycols (PEG) claim 2 , polyamines and polyethyleneimines claim 2 , and/or quarternary ammonium polymers.4. The composition of claim 1 , wherein the water-soluble matrix comprises a hydrocolloid.5. The composition of claim 3 , wherein the polysaccharides comprise one or more of carboxymethylcellulose claim 3 , pectin claim 3 , chitosan claim 3 , agar claim 3 , agarose claim 3 , lactose claim 3 , sucrose claim 3 , glucose claim 3 , and cyclodextrins claim 3 , agar claim 3 , cyclodextrins claim 3 , agar claim 3 , alginate claim 3 , arabinoxylan claim 3 , carrageenan claim 3 , cellulose claim 3 , curdlan claim 3 , gellan claim 3 , β-glucan ...

LIQUID NANOCLUSTER DISPERSION, NANOCLUSTER FILM, SOLID NANOCLUSTER DISPERSION, METHOD FOR PRODUCING LIQUID NANOCLUSTER DISPERSION, AND DEVICE FOR PRODUCING LIQUID NANOCLUSTER DISPERSION

The present invention relates to a nanocluster liquid dispersion where nanoclusters with a predetermined number of atoms are dispersed. 1. A nanocluster liquid dispersion , comprising:nanoclusters with a predetermined number of atoms,wherein the nanoclusters are dispersed.2. The nanocluster liquid dispersion according to claim 1 ,wherein the nanoclusters are uniformly dispersed.3. The nanocluster liquid dispersion according to claim 1 ,further comprising: a dispersion medium in which the nanoclusters are dispersed,wherein the dispersion medium is a solvent having low volatility.4. The nanocluster liquid dispersion according to claim 3 ,wherein the dispersion medium has an ether bond or a siloxane bond.5. The nanocluster liquid dispersion according to claim 4 ,wherein an end of the ether bond or the siloxane bond has an inert substituent terminal.6. The nanocluster liquid dispersion according to claim 1 , further comprising: a dispersion medium in which the nanoclusters are dispersed claim 1 ,wherein the dispersion medium is a volatile solvent.7. The nanocluster liquid dispersion according to claim 6 ,wherein the dispersion medium is selected from the group consisting of a acyclic ether, a cyclic ether, a acyclic siloxane, a nitrile, a haloalkane, an alcohol, an amide, a sulfoxide, and a benzene derivative.8. The nanocluster liquid dispersion according to claim 1 ,wherein a constituent unit of the nanoclusters is a metal element or a main group element whose ionization tendency is higher than Ag, or a complex thereof.9. The nanocluster liquid dispersion according to claim 1 ,wherein the nanoclusters are metal-ion-encapsulating silicon cage clusters represented by M@Si.10. The nanocluster liquid dispersion according to claim 1 ,wherein each of the nanoclusters is selected from the group consisting of a complex cluster of Ta and Si, a complex cluster of Ti and Si, a complex cluster of Lu and Si, a complex cluster of Mo and Si, a complex cluster of W and Si, and a ...

CONCENTRATED PHOTOACTIVE, NEUTRAL TITANIUM DIOXIDE SOL

The present disclosure relates to methods of preparing sols of titanium dioxide nanoparticles that are photoactive, neutral, and in a substantially concentrated form. The methods particularly provide for concentrated sols in light of washing and dewatering under low cation concentrations and utilizing rapid peptizing through addition of the filter case to the peptizing agent. Concentrated acid may be utilized to maintain high TiOconcentration while still avoiding precipitation of the colloidal TiO. Concentrated photoactive, neutral titanium dioxide sols are also provided as well as compositions thereof and photoactive coatings formed therewith. 1. A method for preparing a photocatalytic , neutral titanium dioxide sol , the method comprising:washing and dewatering a hydrous titanium dioxide gel with an aqueous solvent having a cation concentration of about 500 ppm or less until achieving a filtrate conductivity of about 750 μS/cm or less and forming a titanium dioxide filter cake;{'sub': '2', 'peptizing the titanium dioxide filter cake by adding the filter cake to an alkaline peptizing agent to provide a peptized alkaline titanium dioxide sol with a TiOconcentration of about 30% by weight or greater;'}{'sub': '2', 'neutralizing the peptized alkaline titanium dioxide sol with a concentrated acid to provide a photocatalytic, neutral titanium dioxide sol with a pH of about 7 to about 9 and a TiOconcentration of about 30% by weight or greater.'}2. The method according to claim 1 , wherein the washing and dewatering comprises processing the hydrous titanium dioxide gel in a filter press.3. The method according to claim 1 , wherein the aqueous solvent is demineralized water.4. The method according to claim 1 , wherein the aqueous solvent has a cation concentration of about 100 ppm or less.5. The method according to claim 1 , wherein the aqueous solvent has a Ca concentration of about 50 ppm or less.6. The method according to claim 1 , wherein the washing and dewatering is ...

STABILIZED COLLOIDAL CRYSTALS AND METHODS OF STABILIZING COLLOIDAL CRYSTALS

Methods of stabilizing DNA-engineered crystals can include cross-linking the hybridized oligonucleotides. Stabilized crystals can have improved chemical and thermal stability. 1. A method of stabilizing colloidal crystals , comprising:crystallizing oligonucleotides-functionalized nanoparticles under conditions sufficient to provide crystals having a target crystalline structure, andcontacting the crystals with a cross-linking agent under conditions sufficient to cross-link the oligonucleotides and thereby provide stabilized crystals.2. The method of claim 1 , wherein the cross-linking agent is bis-chloromethylnitrosourea (BCNU) or 8-methoxypsoralen (8-MOP).3. The method of claim 1 , wherein the target crystalline structure is FCC or BCC.4. The method of claim 1 , wherein the stabilized crystals are stable out of an aqueous saline solution.5. The method of claim 1 , wherein the stabilized crystals have a melt temperature of at least 90° C.6. The method of claim 1 , wherein the DNA of the stabilized crystals is adapted to reversibly change length.7. The method of claim 6 , wherein the DNA reversibly changes length in response to changes in chemical environment.8. The method of claim 1 , wherein the nanoparticles are metal.9. The method of claim 8 , wherein the nanoparticles are gold.10. The method of claim 1 , wherein DNA functionalized nanoparticles comprises inducing hybridization between first nanoparticles functionalized with linker oligonucleotides and second nanoparticles functionalized with anchor oligonucleotides claim 1 , and crystallizing the oligonucleotide-functionalized nanoparticles comprises inducing hybridization between the linker oligonucleotides and the anchor oligonucleotides claim 1 , and wherein contacting the crystals with the cross-linking agent cross-links the hybridized oligonucleotides.11. A colloidal crystal claim 1 , comprisingfirst nanoparticles functionalized with linker oligonucleotides and second nanoparticles functionalized with ...

COMPOSITIONS OF MATTER COMPRISING SUSPENDED NANOPARTICLES AND RELATED METHODS

A composition of matter includes a liquid and nanoparticles suspended in the liquid. The nanoparticles each include silica, alumina, and an organosilicon functional group having a molecular weight of at least 200. A method includes functionalizing a surface of nanoparticles with an organosilicon functional group and dispersing the nanoparticles in a liquid to form a suspension. The functional group has a molecular weight of at least 200. The nanoparticles each include silica and alumina at a surface thereof. 1. A method , comprising:functionalizing nanoparticles with an organosilicon functional group, the nanoparticles each comprising silica and alumina; andforming a suspension of the nanoparticles in a liquid.2. The method of claim 1 , wherein functionalizing nanoparticles with an organosilicon functional group comprises functionalizing the nanoparticles with (3-glycidyloxypropyl)trimethoxysilane (GLYMO).3. The method of claim 1 , wherein forming a suspension of the nanoparticles in a liquid comprises dispersing the nanoparticles in an aqueous medium.4. The method of claim 1 , further comprising modifying an exposed surface of silica nanoparticles to form the nanoparticles comprising silica and aluminum.5. The method of claim 4 , wherein modifying an exposed surface of silica nanoparticles comprises replacing a silanol group with Al—OH.6. The method of claim 1 , wherein functionalizing a surface of nanoparticles with an organosilicon functional group comprises reacting the nanoparticles with the organosilicon functional group in the presence of ethanol and water.7. The method of claim 1 , wherein functionalizing a surface of nanoparticles with an organosilicon functional group comprises reacting the nanoparticles with the organosilicon functional group at a temperature of at least 50° C.8. The method of claim 1 , wherein functionalizing a surface of nanoparticles with an organosilicon functional group comprises bonding the organosilicon functional group with ...

Cosmetic preparation, surface-hydrophobized silica-coated metal oxide particles, sol of silica-coated metal oxide, and processes for producing these

The invention relates to (1) a cosmetic material comprising silica-coated metal oxide particles further surface-treated with a hydrophobicizing agent, and (2) metal oxide particles having a specified infrared absorption spectrum intensity ratio and refractive index which are further treated with a hydrophobicizing agent, and to a process for their production. The invention further relates to a silica-coated metal oxide sol which gives such particles, and to a process for its production. The invention can give ultraviolet-screening cosmetic materials with an excellent transparent feel, wherein the particles are satisfactorily dispersed.

Anti-microbial activity of biologically stabilized silver nano particles

An antimicrobial formulation containing biologically stabilized silver nano particles stabilized by a ‘green’ biological route with an average size 1-100 nm in a carrier in which the concentration is 1 to 6 ppm.

Fuel additive composition containing a dispersion of iron particles and a detergent

The invention relates to a composition containing an additive for assisting particulate filter regeneration in the form of an organic dispersion of iron particles in crystallized form and a detergent comprising a quaternary ammonium salt.

Utilisation d'une composition d'additif carburant à base d'une dispersion de particules de fer et d'un détergent

L'invention concerne une composition contenant un additif d'aide à la régénération du FAP sous la forme d'une dispersion organique de particules de fer sous forme cristallisée et d'un détergent comprenant un sel d'ammonium quaternaire.

System and method for manipulating color changing materials

Systems and methods of manipulating a color displayed by an article of wear comprising iron oxide colloidal nanocrystals arranged within chains are described. Steps may include forming the article of wear from a raw material that include the chains of nanocrystals, applying a magnetic field to the raw material, applying energy to at least some of the chains of nanocrystals to soften materials within the raw material immediately surrounding the chains of nanocrystals to which the energy is applied, adjusting a strength of the magnetic field to control the color displayed by the raw material, removing the energy to allow the materials within the raw material immediately surrounding the chains of nanocrystals to harden and fix a location of the nanocrystals within the chains, and removing the magnetic field.

Ultra fine composite metal particles

Ultra fine composite metal particles, characterized in that core metal particles which are prepared from a metal salt, a metal oxide or a metal hydroxide and have a particle diameter of 1 to 100 nm are coated with an organic compound having a functional group having chemical adsorptivity to the surface of the core metal; a method for producing the ultra fine composite metal particles; and a device utilizing the metal particles. The ultra fine composite metal particles are excellent particularly in dispersion stability and also can be produced on a commercial scale.

五酸化アンチモンゾルの製造法

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

Process for preparing colloidal solution of antimony pentoxide

A process for preparing an antimony pentoxide sol, which comprises dispersing sodium antimonate in water, reacting the sodium antimonate with a monovalent or divalent inorganic acid added in a stoichiometrical amount of 0.7 time to 5 times the amount of the sodium antimonate to form the sodium salt of said inorganic acid and an antimony pentoxide gel, separating and water washing said gel, dispersing said gel in water, and peptizing said gel dispersed in water by adding an organic base in an amount to provide a stoichiometrical amount of base / Sb 2 O 5 of from 0.03 to 1.

Method for making colloidal metal oxide particles

본 발명은 콜로이드성 금속 옥사이드 입자의 제조 방법 및 콜로이드성 금속 옥사이드 입자를 함유하는 조성물에 관한 것이다. The present invention relates to a process for preparing colloidal metal oxide particles and to compositions containing colloidal metal oxide particles.

Dispersion of nano-alumina in a resin or solvent system

Dispersion of sol-derived nano-alumina in an organic solvent mixture containing a 1,2-diol with simple agitation. A thixotropic solution is obtained at 20% alumina in ethylene glycol, while a low viscosity (<100 cps) solution is possible for a 20% alumina in (1:1, N-methylpyrrolidone-ethylene glycol) solution. Alumina particles are de-agglomerated with minimal agitation. The resulting solution or resin solution is stable to settling and re-agglomeration. The nano-alumina dispersion solution can then be mixed with an imide coating to provide for a wire coating to give the wire improved abrasion, COF, and corona resistance.

Chemical mechanical polishing slurry compositions, methods of preparing the same and methods of using the same

Provided herein are chemical mechanical polishing (CMP) slurries and methods for producing the same. Embodiments of the invention include CMP slurries that include (a) a metal oxide; (b) a pH-adjusting agent; (c) a fluorinated surfactant; and (d) a quaternary ammonium surfactant. In some embodiments, the fluorinated surfactant is a non-ionic perfluoroalkyl sulfonyl compound. Also provided herein are methods of polishing a polycrystalline silicon surface, including providing a slurry composition according to an embodiment of the invention to a polycrystalline silicon surface and performing a CMP process to polish the polycrystalline silicon surface.

Chemical mechanical polishing slurry compositions, methods of preparing the same and methods of using the same

Provided herein are chemical mechanical polishing (CMP) slurries and methods for producing the same. Embodiments of the invention include CMP slurries that include (a) a metal oxide; (b) a pH-adjusting agent; (c) a fluorinated surfactant; and (d) a quaternary ammonium surfactant. In some embodiments, the fluorinated surfactant is a non-ionic perfluoroalkyl sulfonyl compound. Also provided herein are methods of polishing a polycrystalline silicon surface, including providing a slurry composition according to an embodiment of the invention to a polycrystalline silicon surface and performing a CMP process to polish the polycrystalline silicon surface.

Multi-component particles comprising inorganic nanoparticles distributed in an organic matrix and processes for making and using same

Multi-component particles comprising inorganic nanoparticles distributed in an organic matrix and processes for making and using same. A flowing aerosol is generated that includes droplets of a precursor medium dispersed in a gas phase. The precursor medium contains a liquid vehicle and at least one precursor. At least a portion of the liquid vehicle is removed from the droplets of precursor medium under conditions effective to convert the precursor to the nanoparticles or the matrix and form the multi-component particles.

Magnetic fluid.

The present invention is in the field of fluids and the like comprising magnetic particles, such as ferromagnetic particles, anti-ferromagnetic particles, ferrimagnetic particles, synthetic magnetic particles, paramagnetic particles, superparamagnetic particles, such as magnetic fluids, a method of stabilizing magnetic particles, use of these fluids and functionalized particles. Such fluids have a large variety of applications, such as sealants, as a sensor, in biomedics, etc.

金属纳米颗粒的胶体溶液、金属－聚合物纳米复合物及其制备方法

提供了一种金属纳米颗粒胶体溶液，金属-聚合物纳米复合物及其制备方法。金属纳米颗粒胶体溶液和金属-聚合物纳米复合物可以使用各种聚合物稳定剂制备并且具有均匀的颗粒直径和形状。金属纳米颗粒胶体溶液和金属-聚合物纳米复合物具有广泛的用途，例如作为抗菌剂，杀菌剂，导电粘合剂，导电油墨或图像显示用的电磁波屏蔽剂。

PREPARATION OF HIGHLY STABLE CONCENTRATED DISPERSIONS OF SILVER NANOPARTICLES USING SYNERGISTIC DISPERSING AGENTS

Methods for preparing highly stable concentrated dispersions of silver nanoparticles and described herein. Contemplated methods comprise combining a selected polysaccharidic dispersant with a selected non-reacting dispersant to yield concentrated silver dispersions with enhanced stability and lowered undesirable residual organics. Contemplated methods further comprise selecting an appropriate source of silver ions to reduce the ionic strength of the reaction medium and final silver dispersions. 1. A method of producing a highly stable concentrated dispersion of silver nanoparticles , comprising the steps of:adding a silver compound in deionized water to form a first mixture;separately from the steps of adding silver compound in deionized water, dissolving a combination of a reducing dispersant and co-dispersant in deionized water to form a first solution;combining the first mixture and the first solution to form a slurry;mixing the slurry with a basic solution to form an alkaline basic slurry; andheating the alkaline basic slurry to yield highly uniform silver nanoparticles wherein no silver nanoparticle is larger than 25 nm, wherein the co-dispersant is present at a concentration of less than ⅛ a concentration of the reducing dispersant.2. The method of claim 1 , wherein the silver compound comprises silver oxide.3. The method of claim 1 , wherein the reducing dispersant comprises a polysaccharide claim 1 , and wherein the basic solution comprises NaOH.4. The method of claim 1 , wherein no silver nanoparticle is larger than 15 nm.5. The method of claim 1 , wherein an amount of the silver compound added to the deionized water to form the first mixture is between 1.8-3 times an amount of the combination of the reducing dispersant and co-dispersant dissolved in water.6. The method of claim 1 , wherein the co-dispersant is sodium alginate.7. A highly stable concentrated dispersion of silver nanoparticles produced according to the method of .8. A method of producing a ...

Method for Preparing a Colloidal Zirconia Solution

A method for preparing a colloidal solution of non-aggregated zirconia particles, comprising the following steps: a) providing a zirconium hydroxide sol, b) adding to said sol an inorganic acid according to an [inorganic acid]/[Zr] molar ratio of <0.5, c) performing the hydrothermal treatment of said sol, and d) recovering the colloidal solution of zirconia particles.

Method for preparing a colloidal zirconia solution

A method for preparing a colloidal solution of non-aggregated zirconia particles, comprising the following steps: a) providing a zirconium hydroxide sol, b) adding to said sol an inorganic acid according to an [inorganic acid]/[Zr] molar ratio of <0.5, c) performing the hydrothermal treatment of said sol, and d) recovering the colloidal solution of zirconia particles.

金屬氧化物奈米顆粒材料

无机氧化物或金属纳米粒子的制备方法及设备

一种无机氧化物和金属纳米粒子的制备方法和装置，属于纳米材料的制备领域。常规沉淀法或金属离子液相还原法制备无机氧化物和金属纳米粒子具有反应不均匀、结晶过程难以控制的缺点。本发明是在机械搅拌和超声诱导的条件下，用计量泵(2)将沉淀剂或还原剂通过中空纤维膜(4)扩散到金属盐溶液中，或用计量泵(2)将金属盐溶液通过中空纤维膜(4)扩散到沉淀剂或还原剂溶液中，使金属离子形成纳米氢氧化物沉淀或金属纳米粒子溶胶，灼烧该纳米氢氧化物沉淀可得到纳米无机氧化物，而金属纳米粒子溶胶则可以作为制备纳米催化剂的前驱体。利用本发明的方法和装置制备的无机氧化物和金属纳米粒子粒度小、粒度分布均匀一致。

Cationic polyoxometalate-coated alumina trihydrate dispersants

The present invention relates to polyoxometalate-coated alumina trihydrate dispersants prepared by combining a polyaluminum chloride having certain characteristics with alumina trihydrate particles. Such dispersants are useful for forming cationic alumina trihydrate slurries, which can be mixed with titanium dioxide to produce stable cationic slurry blends useful in paper, paper-board, and paint (coatings) applications. The dispersants are also useful for preparing cationic titanium dioxide slurries.

Method for incorporating cationic molecules into a substrate for increasing dispersibility of cationic molecules

The present invention generally provides a method for increasing the dispersibility of a cationic molecule of interest through the ion exchange of the cationic molecule onto the surface of a substrate having a high surface area. The present invention further provides for the resulting compositions whereby a cationic molecule of interest has been incorporated onto the surface of a high surface area substrate and where the resulting cation/substrate (such as a cation/organoclay) composition experiences greater dispersibility in a target application system than the cationic molecule of interest alone experiences in that same application system. The method of the present invention further serves to substantially reduce the water solubility of the cationic molecule of interest by incorporating it into a high surface area substrate such as an organoclay. Also, the method of the present invention serves to improve the efficacy of the cationic molecule of interest.

Catalizzatore particolarmente per il trattamento dei gas di scarico di autoveicoli..e procedimento per la sua preparazione

결정성 산화 제2 세륨 졸 및 그 제조방법

단분산(單分散)에 가까운 결정성 산화 제2 세륨 졸 및 그 제조방법에 관한 것이다. 그 해결수단으로서는, 가스 흡착법에 의한 비표면적으로부터 환산한 입자경이 10∼200 nm이며, 또한 (동적 광산란법으로 측정한 입자경)/(가스 흡착법에 의한 비표면적으로부터 환산한 입자경)의 비가 2∼6의 범위에 있는 결정성 산화 제2 세륨 입자를 함유하는 졸, 및 불활성 가스 분위기하에서 수성매체 중에서 세륨(III) 염과 알칼리성 물질을 반응시켜 수산화 세륨(III)의 현탁액을 생성한 후, 즉시 이 현탁액에 산소 또는 산소를 함유하는 가스를 불어 넣어 결정성 산화 제2 세륨 입자를 함유하는 졸을 생성하는 공정, 및 제조된 졸을 습식분쇄하는 공정으로 제조하는 그 제조방법과, 또한, 탄산 세륨을 300∼1100℃로 소성함으로써 얻어진 결정성 산화 세륨 입자를 습식분쇄하는 공정으로 제조한다. 결정성 산화 제2 세륨 입자, 결정성 산화 세륨 입자, 결정성 산화 제2 세륨 입자를 함유하는 졸

用于制备氧化锆胶体的方法

本发明提供了透明胶体悬浮液、其制备方法以及光学制品，该光学制品含有至少一层由含有所述悬浮液的组合物制成的涂层。所述方法包括以下连续步骤：a)使氯氧化锆和碱金属卤化物在水性溶剂中的混合物在超过150℃的温度下进行水热处理；b)将所得浆料与上清液分离；c)通过往其中添加强酸使所述浆料胶溶；和d)使所述浆料脱盐，以形成氧化锆的胶体悬浮液。

使用金属胶体微粒的稳定悬浮液净化热力发动机的流体、以及制造所述流体的方法

本发明描述了适用于净化热力发动机的流体，其既能够对废气中所含的氮氧化物(DeNOx)进行催化还原，又能够帮助微粒过滤器(FAP)再生，所述流体的形式为胶体微粒的稳定悬浮液，所述胶体微粒分散在含有至少一种还原剂或至少一种NOx还原剂前体的水溶液中。本发明还描述了获得所述流体的几种方法。

산화철 나노입자 함유 콜로이드 조성물의 제조방법

본 발명은 산화철 나노입자를 함유하는 콜로이드 용액의 제조방법에 관한 것으로, 철염 수용액과 유기용매에 용해시킨 계면활성제 용액을 균질하게 혼합하고, 염기성 용액과 별도의 계면활성제 함유 용액을 균질하게 혼합하고, 생성된 상기 철염 함유 용액과 상기 염기성 혼합용액을 혼합하여 반응시키는 것을 포함하는 본 발명에 따라 제조된 산화철 나노입자 함유 콜로이드 용액은, 침전이 생성되지 않고 고르게 잘 분산되어 투명하고 안정하다.

Sol containing titanium dioxide, its production method and products made of it

FIELD: catalyst production.SUBSTANCE: to obtain sol containing titanium dioxide, zirconium dioxide and/or their hydrated forms, material including meta-titanic acid is mixed in an aqueous medium with a zirconium compound or a mixture of several zirconium compounds. The specified material is a suspension or a filtrated precipitate obtained by hydrolysis of a solution containing TiOSO4and has H2SO4content from 3 to 15 wt.% per the amount of TiO2contained in material. The zirconium compound is added in the amount sufficient for converting the reaction mixture into sol. The amount of sulfuric acid should not exceed the amount of the added zirconium compound in wt.% for more than 2.2 times. Sol options for the catalyst production, their application, a method for producing material in the form of particles, containing titanium dioxide, zirconium dioxide and/or their hydrated forms, material in the form of particles for the catalyst production, and its application are proposed.EFFECT: group of inventions allows for simplification of obtaining sol containing TiO2, while increasing stability and performance of obtaining.17 cl, 1 dwg, 1 tbl, 5 ex РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 763 729 C2 (51) МПК C01G 23/00 (2006.01) C01G 23/053 (2006.01) C01G 25/00 (2006.01) C01G 25/02 (2006.01) B01J 21/06 (2006.01) B01J 35/10 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА B01J 37/03 (2006.01) ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ B82Y 30/00 (2011.01) B01J 13/00 (2006.01) (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК 2018146599, 02.06.2017 (24) Дата начала отсчета срока действия патента: 02.06.2017 Дата регистрации: 30.12.2021 (73) Патентообладатель(и): ВЕНАТОР ДЖЕРМАНИ ГМБХ (DE) Приоритет(ы): (30) Конвенционный приоритет: 2 7 6 3 7 2 9 (43) Дата публикации заявки: 09.07.2020 Бюл. № 19 (45) Опубликовано: 30.12.2021 Бюл. № 1 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 09.01.2019 (56) Список документов, цитированных в отчете о поиске: RU 2527262 C2, 27.08.2014. EP 2138462 A1, 30.12.2009. ...

Dispersion of aluminium nano oxide in resin or system of solvents

FIELD: process engineering. SUBSTANCE: invention relates to dispersions of aluminium nano oxide intended for formation of coats. Proposed method of producing stable dispersion of aluminium nano oxide made from sol comprises dispersing aluminium nano oxide in dispersant solution containing ethylene glycol and/or 1,2-propandiol and phenolic or amide solvent. Invention covers also the method of applying coat on wire comprising preparation of aforesaid stable dispersion of aluminium nano oxide as described above. EFFECT: higher stability aluminium nano oxide dispersion. 18 cl, 1 tbl, 15 ex РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2 435 637 (13) C2 (51) МПК B01F 17/38 (2006.01) C01F 7/02 (2006.01) C09D 201/06 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (21)(22) Заявка: 2008145096/04, 05.02.2007 (24) Дата начала отсчета срока действия патента: 05.02.2007 (72) Автор(ы): МАРРИ Томас Дж. (US), МЕЙСТЕР Филип Р. (US) (43) Дата публикации заявки: 27.05.2010 Бюл. № 15 2 4 3 5 6 3 7 (45) Опубликовано: 10.12.2011 Бюл. № 34 (56) Список документов, цитированных в отчете о поиске: US 6476083 B1, 05.11.2002. US 4546041 A, 08.10.1985. EP 1484361 A1, 08.12.2004. SU 568356 A, 05.08.1977. 2 4 3 5 6 3 7 R U (86) Заявка PCT: EP 2007/051062 (05.02.2007) C 2 C 2 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 17.11.2008 (87) Публикация заявки РСТ: WO 2007/118720 (25.10.2007) Адрес для переписки: 101000, Москва, М. Златоустинский пер., 10, кв. 15, "ЕВРОМАРКПАТ", пат.пов. Н.В.Кузенковой (54) ДИСПЕРСИЯ НАНООКСИДА АЛЮМИНИЯ В СМОЛЕ ИЛИ СИСТЕМЕ РАСТВОРИТЕЛЕЙ (57) Реферат: Изобретение относится к дисперсиям нанооксида алюминия, предназначенным для образования покрытий. Предложен способ приготовления стабильной дисперсии приготовленного из золя нанооксида алюминия, включающий диспергирование нанооксида алюминия в диспергирующем растворе, содержащем этиленгликоль и/или 1,2пропандиол и фенольный или амидный растворитель. Предложен также ...

Nano-alumina dispersion in resin or solvent system

无规共聚物的用途

本发明涉及包含至少一种具有疏水基的结构单元和至少一种具有亲水基的结构单元的无规共聚物作为分散剂用于制备具有不相容性分散相和连续相的分散体的用途，特别是将具有亲水表面的颗粒分散在油中的用途，涉及包含无规共聚物和具有亲水性表面颗粒的分散体或粉末组合物。本发明还涉及生产这些无规共聚物的方法。

结构化的锆溶液

本发明涉及锆溶液或溶胶，其包括：(a)锆，(b)硝酸根、乙酸根和/或氯离子，和(c)一种或多种络合剂，其为包括以下官能团的至少一种的有机化合物：胺、有机硫酸根、磺酸根、羟基、醚或羧酸基团，其中组分(a):(b)的摩尔比为1:0.7到1:4.0，组分(a):(c)的摩尔比为1:0.0005到1:0.1，和所述锆溶液或溶胶的pH小于5。本发明还涉及用于制备锆溶液或溶胶的工艺，所述工艺包括如下步骤：(a)将锆盐溶解在硝酸、乙酸和/或盐酸中，和(b)向所得溶液添加一种或多种络合剂，所述一种或多种络合剂为包括以下官能团的至少一种的有机化合物：胺、有机硫酸根、磺酸根、羟基、醚或羧酸基团，和(c)将所述溶液或溶胶加热至至少75℃的温度。此外，本发明涉及由所述锆溶液或溶胶形成或能通过所述方法获得的产品。

Colloidal dispersion of a rare earth compound comprising an anti-oxidant agent and use thereof as additive for diesel fuel for internal combustion engines

The invention relates to a dispersion of the type comprising particles of a rare earth compound, particularly a compound of cerium, an acid and an organic phase, characterised in further comprising an anti-oxidant agent which can particularly be selected from substituted derivatives of phenol, aromatic amines or tocopherols. Said dispersion may be used as additive for diesel fuel for internal combustion engines, in particular as additive for diesel for diesel engines.;

Colloidal dispersion of a rare earth compound comprising an anti-oxidant agent and use thereof as additive for diesel fuel for internal combustion engines

The invention relates to a dispersion of the type comprising particles of a rare earth compound, particularly a compound of cerium, an acid and an organic phase, characterized in further comprising an anti-oxidant agent which can particularly be selected from substituted derivatives of phenol, aromatic amines or tocopherols. Said dispersion may be used as additive for diesel fuel for internal combustion engines, in particular as additive for diesel for diesel engines.

Patent RU2018146599A3

ВИ“? 2018146599” АЗ Дата публикации: 29.01.2021 Форма № 18 ИЗПМ-2011 Федеральная служба по интеллектуальной собственности Федеральное государственное бюджетное учреждение ж 5 «Федеральный институт промышленной собственности» (ФИПС) ОТЧЕТ О ПОИСКЕ 1. . ИДЕНТИФИКАЦИЯ ЗАЯВКИ Регистрационный номер Дата подачи 2018146599/04(077824) 02.06.2017 РСТ/ЕР2017/063441 02.06.2017 Приоритет установлен по дате: [ ] подачи заявки [ ] поступления дополнительных материалов от к ранее поданной заявке № [ ] приоритета по первоначальной заявке № из которой данная заявка выделена [ ] подачи первоначальной заявки № из которой данная заявка выделена [ ] подачи ранее поданной заявки № [Х] подачи первой(ых) заявки(ок) в государстве-участнике Парижской конвенции (31) Номер первой(ых) заявки(ок) (32) Дата подачи первой(ых) заявки(ок) (33) Код страны 1. 192016110374.8 06.06.2016 РЕ Название изобретения (полезной модели): [Х] - как заявлено; [ ] - уточненное (см. Примечания) СОДЕРЖАЩИЙ ДИОКСИД ТИТАНА ЗОЛЬ, СПОСОБ ЕГО ПОЛУЧЕНИЯ И ИЗГОТОВЛЕННЫЕ ИЗ НЕГО ПРОДУКТЫ Заявитель: ВЕНАТОР ДЖЕРМАНИ ГМБХ, ОЕ 2. ЕДИНСТВО ИЗОБРЕТЕНИЯ [Х] соблюдено [ ] не соблюдено. Пояснения: см. Примечания 3. ФОРМУЛА ИЗОБРЕТЕНИЯ: [Х] приняты во внимание все пункты (см. п см. Примечания [ ] приняты во внимание следующие пункты: [ ] принята во внимание измененная формула изобретения (см. Примечания) 4. КЛАССИФИКАЦИЯ ОБЪЕКТА ИЗОБРЕТЕНИЯ (ПОЛЕЗНОЙ МОДЕЛИ) (Указываются индексы МПК и индикатор текущей версии) СО1С 23/00 (2006.01) С01С 25/02 (2006.01) ВО1/ 37/03 (2006.01) СО1С 23/053 (2006.01) ВО1.] 21/06 (2006.01) В82У 30/00 (2011.01) СО1С 25/00 (2006.01) ВОТ. 35/10 (2006.01) ВОТ. 13/00 (2006.01) 5. ОБЛАСТЬ ПОИСКА 5.1 Проверенный минимум документации РСТ (указывается индексами МПК) СОТС 23/00, СОТО 23/04-СОТ@ 23/053, С01С 25/00, СОТ@ 25/02, ВО11 21/06, ВО13 35/10, ВО11 37/00-ВО11 37/03, ВО13 13/00, С09С 1/36, В82У 30/00 5.2 Другая проверенная документация в той мере, в какой она включена в поисковые подборки: 5.3 Электронные базы ...

Method for obtaining concentrated hydrosol of zirconium dioxide

FIELD: materials science. SUBSTANCE: invention relates to material engineering and can be used in production of structural and building elements in machine building, functional heat-shielding coatings, in medicine for production of implants in bone tissue, filling material, in production of ceramic fuel cells, films for production of miniature electromechanical systems, electronic and optical instruments, sensors and energy converters, cutting tools, catalysts. To obtain concentrated hydrosol of zirconium of composition (1-x)ZrO 2 /xY 2 O 3 , where x=0.03–0.08 as the starting materials for the hydrolysis, filtered solutions of zirconium oxychloride and yttrium nitrate are used. Hydrolysis of the salts is carried out with an aqueous solution of ammonia of concentration 0.1224–2.0601 mol/l at room temperature and intensive stirring at pH≤1.4. EFFECT: invention makes it possible to obtain hydrosols that retain aggregative and sedimentation resistance for 1 year, with exception of the stage of gel peptization. 1 cl, 1 tbl, 14 ex РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 652 713 C1 (51) МПК C01G 25/02 (2006.01) C01F 17/00 (2006.01) B01J 13/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК C01G 25/02 (2006.01); C01F 17/0043 (2006.01); B01J 13/0008 (2006.01); B01J 13/0034 (2006.01); B01J 13/0047 (2006.01); C01P 2004/62 (2006.01); C01P 2004/64 (2006.01) (21)(22) Заявка: 2017120632, 13.06.2017 13.06.2017 Дата регистрации: Приоритет(ы): (22) Дата подачи заявки: 13.06.2017 (45) Опубликовано: 28.04.2018 Бюл. № 13 2 6 5 2 7 1 3 R U (56) Список документов, цитированных в отчете о поиске: ГАВРИЛОВА Н.Н., НАЗАРОВ В.В., Синтез гидрозолей СеО 2 -ZrO 2 с использованием пептизации при комнатной температуре, Коллоидный журнал, 2010, т. 72, N 4, сс. 465-472. RU 2235686 C1, 10.09.2004. RU 2580138 C1, 10.04.2016. SU 1114617 A1, 23.09.1984. EP 2468682 B1, 15.01.2014. WO 2004078652 A1, 16.09.2004. (54) Способ получения ...

Zirconia-based compositions for use as three-way catalysts

Способ получения коллоидных частиц оксидов металлов

1. Способ получения коллоидных частиц оксида металла, включающий: ! (a) добавление химически активного оксида металла в реакционную емкость при массовой скорости добавления оксида металла, которая основывается на математической модели, которая учитывает (i) скорость нуклеации частиц, (ii) скорость осаждения оксида металла на существующие частицы оксида металла и (iii) рост частиц оксида металла в реакционной емкости, массовая скорость добавления оксида металла увеличивается как функция времени реакции. ! 2. Способ по п.1, в котором математическая модель дает, что оптимальная массовая скорость добавления оксида металла, q, представлена формулой: ! q=(3moGr/Dpo 3)(Dpo+Grt)2, ! где (a) mo представляет собой массу частиц оксида металла в реакционной емкости, как измерено в граммах (г); ! (b) Gr представляет собой скорость роста частиц оксида металла для частиц оксида металла в реакционной емкости, как определяется по увеличению диаметра частиц и как измерено в нанометрах в час (нм/ч); ! (c) Dpo представляет собой средний диаметр частиц оксида металла, как измерено в нанометрах (нм); и ! (d) t представляет собой время в часах (ч). ! 3. Способ по п.2, в котором Gr находится в пределах от примерно 10 до примерно 50 нм/ч и q находится в пределах от примерно 10,6 до примерно 52,8 г/1000 м2/ч в течение, по меньшей мере, части периода реакции. ! 4. Способ по п.2, в котором Gr находится в пределах от примерно 20 до примерно 40 нм/ч и q находится в пределах от примерно 21,1 до примерно 42,3 г/1000 м2/ч в течение, по меньшей мере, части периода реакции. ! 5. Способ по п.1, в котором массовая скорость добавления оксида металла больше, чем 10,0 г химически активного оксида металла на 1000 квадратных ме РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2010 131 001 (13) A (51) МПК B01J 13/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (71) Заявитель(и): У.Р. ГРЕЙС ЭНД КО.-КОНН. (US) (21)(22) Заявка: 2010131001/05, 04.12.2008 Приоритет(ы): (30) ...

二氧化钛溶胶、其制备方法以及由其获得的产物

本发明涉及包含二氧化钛的溶胶的制备以及从而获得的二氧化钛溶胶及其用途，所述包含二氧化钛的溶胶包含钛化合物，当TiO 2 根据硫酸盐法通过将包含硫酸氧钛的溶液水解来制备时，优选地获得所述包含二氧化钛的溶胶，和/或所述包含二氧化钛的溶胶具有微晶锐钛矿结构并包含锆化合物。

Patent RU2019108783A3

РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (51) МПК C01G 25/00 (2006.01) C01G 25/02 (2006.01) C01G 25/06 (2006.01) C01B 25/37 (2006.01) C01B 33/00 (2006.01) C01F 7/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА C01G 19/00 (2006.01) ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ C01G 33/00 (2006.01) C01G 39/00 (2006.01) B01J 21/06 (2006.01) (12) (13) 2019 108 783 A B01J 23/14 (2006.01) B01J 23/16 (2006.01) B01J 35/00 (2006.01) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2019108783, 30.01.2017 (71) Заявитель(и): МАГНЕЗИУМ ЭЛЕКТРОН ЛИМИТЕД (GB) Приоритет(ы): (30) Конвенционный приоритет: (43) Дата публикации заявки: 27.11.2020 Бюл. № 33 (86) Заявка PCT: GB 2017/050233 (30.01.2017) (87) Публикация заявки PCT: R U Адрес для переписки: 129090, Москва, ул. Б. Спасская, 25, стр. 3, ООО "Юридическая фирма Городисский и Партнеры" (54) КИСЛОТНЫЙ ГИДРОКСИД ЦИРКОНИЯ (57) Формула изобретения 1. Гидроксид циркония включающий, в пересчете на оксид, до 30% вес. легирующей добавки, содержащей один или несколько из следующих: кремний, сульфат, фосфат, вольфрам, ниобий, алюминий, молибден, титан или олово, и имеющий кислотные центры. 2. Гидроксид циркония по п. 1, имеющий больше льюисовских кислотных центров, чем кислотных центров Брэнстеда. 3. Гидроксид циркония по п. 1 или 2, включающий, в пересчете на оксид, менее 0,1% вес. легирующей добавки, содержащей один или несколько из следующих: кремний, сульфат, фосфат, вольфрам, ниобий, алюминий, молибден, титан или олово, при этом, гидроксид циркония является пористым, и в отношении пор с диаметром до 155 нм, по меньшей мере, 70% объема его пор образовано порами диаметром 3,5-155 нм, измеренным методом BJH. 4. Гидроксид циркония по п. 3, в котором, в отношении пор с диаметром до 155 нм, по меньшей мере, 75% объема пор образовано порами диаметром 3,5-155 нм, измеренным методом BJH. 5. Легированный гидроксид циркония по п. 1 или 2, включающий, в пересчете на Стр.: 1 A 2 0 1 9 1 0 8 7 8 3 A WO 2018/078313 (03.05.2018) 2 0 1 9 1 0 8 7 8 3 (85) Дата начала рассмотрения заявки PCT на ...

制备胶态金属氧化物颗粒的方法

本发明公开了制备胶态金属氧化物颗粒的方法和含有胶态金属氧化物颗粒的组合物。

FUEL ADDITIVE COMPOSITION BASED ON IRON PARTICLE DISPERSION AND DETERGENT

A composition contains an additive for assisting with regeneration of the PF in the form of an organic dispersion of iron particles in crystallized form and a detergent including a quaternary ammonium salt.

Zirconium acid hydroxide

FIELD: chemistry. SUBSTANCE: invention can be used in the manufacture of catalysts and sorbents. Disclosed is a zirconium hydroxide including, in terms of oxide, up to 30 wt%. of a dopant containing silicon, sulfate or tungsten, and having acid sites, while the specified zirconium hydroxide has more Lewis acid sites than Bronsted acid sites. The method for producing zirconium hydroxide includes the stages at which basic zirconium carbonate is dissolved in an aqueous solution of nitric acid, a complexing agent is added to the resulting solution or sol, and the said complexing agent is mandelic acid. Then the resulting solution or sol is heated, a sulfating agent, a base, an alloying additive containing silicon, sulfate or tungsten are added. Zirconium oxide, a method for its production as well as a product for use in catalysis, a binder, a coating and a sorbent, including a zirconium hydroxide or a zirconium oxide, are disclosed. EFFECT: invention improves thermal stability of a product intended for use in catalysis such as a catalyst, catalyst support, catalyst precursor. 33 cl, 13 dwg, 7 tbl, 12 ex РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (51) МПК C01G 25/00 (2006.01) C01G 25/02 (2006.01) C01G 25/06 (2006.01) C01B 25/37 (2006.01) C01B 33/00 (2006.01) C01F 7/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА C01G 19/00 (2006.01) ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ C01G 33/00 (2006.01) C01G 39/00 (2006.01) B01J 21/06 (2006.01) (12) (13) 2 743 207 C2 B01J 23/14 (2006.01) B01J 23/16 (2006.01) B01J 35/00 (2006.01) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК (21)(22) Заявка: 2019108783, 30.01.2017 30.01.2017 Дата регистрации: 16.02.2021 (73) Патентообладатель(и): МАГНЕЗИУМ ЭЛЕКТРОН ЛИМИТЕД (GB) Приоритет(ы): (30) Конвенционный приоритет: 2 7 4 3 2 0 7 R U (43) Дата публикации заявки: 27.11.2020 Бюл. № 33 (45) Опубликовано: 16.02.2021 Бюл. № 5 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 27.05.2019 (86) Заявка PCT: (56) Список документов, цитированных в отчете о поиске: US 20160151768 ...

Method of producing stable aqueous colloidal solutions of cerium dioxide nanoparticels

FIELD: chemistry. SUBSTANCE: ammoniumhexanitrocerate (IV) aqueous solution is prepared to produce stable aqueous cooloidal solutions of cerium dioxide nanoparticles, by intimately stirring it until complete dissolution. Hydrothermal treatment of the solution is carried out at a temperature of 80-200°C during 0.4-50 hours. The precipitate of cerium dioxide nanoparticles is separated by centrifugation from the mother liquor containing NH 4 NO 3 and HNO 3 . Nanoparticles of CeO 2 are redispersed in distilled water. The resulting colloidal solution is added to the aqueous solution of stabiliser. Nontoxic organic hydroxyl compounds selected from the series: dextran, maltodextrin, ammonium citrate are used as the stabiliser. The molar ratio of CeO 2 : stabiliser equals 1:(2-5). If dextran and maltodextrin are used as the stabilisers, calculation is made per monomer material amount. EFFECT: invention enables to obtain aqueous colloidal solutions, stable in a wide pH range. 4 cl, 2 dwg, 4 ex РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 615 688 C1 (51) МПК C01F 17/00 (2006.01) B01J 13/00 (2006.01) B82B 3/00 (2006.01) B82Y 40/00 (2011.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ФОРМУЛА (21)(22) Заявка: ИЗОБРЕТЕНИЯ К ПАТЕНТУ РОССИЙСКОЙ ФЕДЕРАЦИИ 2016112343, 01.04.2016 (24) Дата начала отсчета срока действия патента: 01.04.2016 Дата регистрации: Приоритет(ы): (22) Дата подачи заявки: 01.04.2016 (45) Опубликовано: 06.04.2017 Бюл. № 10 2 6 1 5 6 8 8 C 1 2242275 C2, 20.12.2004. US 20130273659 A1, 17.10.2013. US 20080138272 A1, 12.06.2008. US 5733361 A1, 31.03.1998. LIU X. et al., Apoferritin-CeO 2 nano-truffle that has excellent artificial redox enzyme activity, Chemical Communications, 2012, v. 48, N 26, pp. 3155-3157. (54) Способ получения стабильных водных коллоидных растворов наночастиц диоксида церия (57) Формула изобретения 1. Способ получения стабильных водных коллоидных растворов наночастиц диоксида церия, состоящий из приготовления водного раствора ...

Metal colloid and catalyst produced from such metal colloid

Disclosed is a metal colloid comprising: a solvent composed of water or a mixed solvent of water and an organic solvent; cluster particles comprising one or more metal species; and a protective agent for protecting the cluster particles, characterised in that the protective agent comprises a polymeric material which can be bound to one or more ion species selected from the group consisting of alkali earth metal ions, transition metal ions, rare earth metal ions, an aluminum ion and a gallium ion, and the protective agent has one or more ion species selected from the group consisting of alkali earth metal ions, transition metal ions, rare earth metal ions, an aluminum ion and a gallium ion bounded thereto.

Method for producing metal colloid and metal colloid produced by the method

Supercrystalline colloidal particles and method of production

The present invention concerns size- and shape-controlled, colloidal superparticles (SPs) and methods for synthesizing the same. Ligand-functionalized nanoparticles such as nonpolar-solvent-dispersible nanoparticles, are used, and the solvophobic interactions can be controlled. Advantageously, supercrystalline SPs having a superlattice structure, such as a face-centered cubic structure, can be produced. Further, the methods of the invention can provide SPs that self-assemble and are monodisperse. The SPs can be doped with organic dyes and further assembled into more complex structures.

Metal colloid and catalyst using the metal colloid as a raw material