Process for preparing a spherical material with a hierarchical porosity comprising metallic particles trapped in a mesostructured matrix

A process is described for the preparation of an inorganic material with a hierarchical porosity in the micropore and mesopore domains. The material has at least two elementary spherical particles having a maximum diameter of 200 microns. The process comprises: a) preparing a solution containing zeolitic nanocrystals with a maximum nanometric dimension equal to 60 nm based on silicon and/or precursor elements of proto-zeolitic entities based on silicon; b) mixing, in solution, metallic particles or at least one metallic precursor of metallic particles, a surfactant and the solution obtained in accordance with a) such that the ratio of the volumes of inorganic and organic materials, Vinorganic/Vorganic, is 0.29 to 0.50; c) aerosol atomization of the solution obtained in b) resulting in formation of spherical particles; d) drying the particles; g) eliminating any remaining precursor elements of proto-zeolitic entities based on silicon and the surfactant.

Spherical material comprising metallic nanoparticles trapped in a mesostructured oxide matrix and use thereof as catalyst in hydrocarbon refining processes

An inorganic material is described consisting of at least two elementary spherical particles, each of said spherical particles comprising metallic nanoparticles having at least one band of wavenumbers between 750 and 1050 cm-1 in Raman spectroscopy and containing one or more metals chosen from vanadium, niobium, tantalum, molybdenum, tungsten, said metallic nanoparticles being trapped in a mesostructured matrix based on an oxide of an element Y chosen from silicon, aluminium, titanium, tungsten, zirconium, gallium, germanium, tin, antimony, lead, vanadium, iron, manganese, hafnium, niobium, tantalum, yttrium, cerium, gadolinium, europium and neodymium. Said matrix has pores with a diameter between 1.5 and 50 nm and amorphous walls with a thickness between 1 and 30 nm. Said elementary spherical particles have a maximum diameter of 200 microns and said metallic nanoparticles have a maximum size strictly of less than 1 nm.

CELLULAR SOLID COMPOSITE MATERIAL COMPRISING METAL NANOPARTICLES, PREPARATION PROCESS AND USES FOR THE REVERSIBLE STORAGE OF HYDROGEN

A macroporous monolithic composite material to a carbon monolith is provided having a hierarchized porous structure has metal nanoparticles. The arrangement also includes a process for the preparation thereof, a process for storing hydrogen that uses same, and to a process for producing gaseous hydrogen that uses such a composite material, where the process is reversible. 1. Cellular solid composite material that is in the form of a porous carbon monolith comprising:{'sub': A', '1, 'a hierarchized porous network having macropores having a mean size dof 1 μm to 100 μm and micropores having a mean size dof 0.7 to 1.5 nm, said macropores and micropores being interconnected, said material having mesoporous network and and wherein said cellular solid composite material has nanoparticles of a metal M in the zero oxidation state, said metal M being selected from palladium and gold.'}2. Material according to claim 1 , wherein the nanoparticles of palladium or gold are present at the surface of the macropores of the monolith.3. Material according to claim 1 , wherein the size of the nanoparticles of metal M varies from 1 to 300 nm.4. Process for preparing a composite material as defined in said process further comprising the following steps:{'sub': A', '1, 'i) a step of impregnating a porous carbon monolith comprising a hierarchized porous network comprising macropores having a mean size dof 1 μm to 100 μm and micropores having a mean size dof 0.7 to 1.5 nm, said macropores and micropores being interconnected, said material having no mesoporous network, with a solution of a salt of a metal M selected from palladium and gold in a solvent;'}ii) a step of air drying said monolith;iii) a step of forming nanoparticles of said metal M in the zero oxidation state by heat treatment of said monolith at a temperature varying from 50 to 900° C., in the presence of a reducing gas, in order to reduce the metal ions M to the zero oxidation state.5. Process according to claim 4 , wherein ...

Process for preparing a spherical material having hierarchical porosity comprising metallic particles trapped in a mesostructured matrix

A process is described for preparing an inorganic material having hierarchical porosity in the fields of microporosity and mesoporosity, said material consisting of at least two elementary spherical particles having a maximum diameter of 200 microns, each of said spherical particles comprising metallic particles present within a mesostructured matrix based on silicon oxide, having microporous walls with a thickness between 1 and 60 nm, said process comprising the steps: a) the preparation of a solution containing zeolite nanocrystals of maximum nanometre size equal to 60 nm based on silicon and/or precursor elements of proto-zeolitic entities based on silicon, b) the mixing in solution of said metallic particles or of at least one metallic precursor of said metallic particles, of a surfactant and of said solution obtained according to a) such that the ratio of the volumes of inorganic material to organic material Vinorganic/Vorganic is between 0.29 and 0.50, c) atomization, via aerosol, ...

Spherical material based on heteropolyanions trapped in a mesostructured oxide matrix and use thereof as catalyst in hydrocarbon refining processes

An inorganic material is described consisting of at least two elementary spherical particles, each of said spherical particles comprising metallic particles in the form of polyoxometalate of formula (XxMmOyHh)q- where H is hydrogen, O is oxygen, X is an element chosen from phosphorus, silicon, boron, nickel and cobalt and M is one or more elements chosen from vanadium, niobium, tantalum, molybdenum, tungsten, iron, copper, zinc, cobalt and nickel, x being equal to 0, 1, 2 or 4, m being equal to 5, 6, 7, 8, 9, 10, 11, 12 and 18, y being between 17 and 72, h being between 0 and 12 and q being between 1 and 20 (y and q being integers). Said metallic particles are present within a mesostructured matrix based on an oxide of an element Y chosen from the group consisting of silicon, aluminium, titanium, tungsten, zirconium, gallium, germanium, tin, antimony, lead, vanadium, iron, manganese, hafnium, niobium, tantalum, yttrium, cerium, gadolinium, europium and neodymium and the mixture of at least ...

Heterogenous enzymatic catalyst, preparation method, and use

The invention relates to a heterogenous enzymatic catalyst that takes the form of a cellular monolith consisting of a silica or organically modified silica matrix, said monolith including macropores, mesopores, and micropores, said pores being interconnected, and wherein the inner surface of the macropores is functionalized by a coupling agent selected from among silanes, said inner surface moreover having an unpurified enzyme attached thereon by means of a covalent or electrostatic bond. The invention also relates to the method for preparing said catalyst, said method comprising: a first step for preparing a solid silica impression that takes the form of a cellular monolith such as defined above; a second step for functionalizing the inner surface of the macropores via a coupling agent, selected from among silanes, by vacuum-soaking the cellular monolith by dissolving the coupling agent in an organic solvent; and a third step for vacuum-soaking the thus-functionalized monolith by means of an aqueous solution or aqueous dispersion of at least one unpurified enzyme. Finally, the invention relates to the use of such catalyst to carry out catalyzed chemical reactions.

METHOD FOR DEPOSITING A LAYER ON THE SURFACE OF A SUBSTRATE

A process for depositing a layer on at least part of the surface of a substrate by at least partially submerging the substrate in a solution comprising a solvent and at least one compound intended to form the layer, then drying the substrate, this drying being at least partially carried out in an atmosphere that is isolated from the solution. The submersion in the solution and the drying of the substrate are carried out in the same controlled-atmosphere enclosure. 1. A process for depositing a layer on at least part of the surface of a substrate by at least partially submerging the substrate in a solution comprising a solvent and at least one compound intended to form the layer , then drying the substrate , this drying being carried out at least partially in an atmosphere that is isolated from the solution , wherein the submersion in the solution and the drying of the substrate are carried out in the same controlled-atmosphere enclosure.2. The process as claimed in claim 1 , in which the solution is introduced into the controlled-atmosphere enclosure in order to allow the substrate to be submerged claim 1 , and is removed from the controlled-atmosphere enclosure during the drying of the substrate.3. The process as claimed in claim 2 , in which the solution is contained in a moveable tank so as to be introduced into the enclosure and removed from the latter claim 2 , especially by moving the tank in translation relative to the enclosure.4. The process as claimed in claim 1 , in which the atmosphere in the enclosure is controlled by arranging for a flow of gas to pass through the interior of said enclosure.5. The process as claimed in claim 4 , in which the through-flow of gas is heated claim 4 , especially before it enters the controlled-atmosphere enclosure.6. The process as claimed in claim 1 , in which treatments are carried out on the layer claim 1 , directly in the enclosure claim 1 , during and/or after drying claim 1 , especially a high-temperature treatment ...

HETEROGENEOUS ENZYMATIC CATALYST, PROCESS FOR PREPARING SAME AND USE FOR CONTINUOUS FLOW ENZYMATIC CATALYSIS

The present invention relates to a heterogeneous enzymatic catalyst consisting of a macroprous silica monolith incorporating an enzyme immobilized by means of a compiling agent, to a process for preparing this enzymatic catalyst, to the use of the catalyst for carrying out chemical reactions by continuous flow heterogeneous enzymatic catalyst and to a process of continuous flow heterogeneous enzymatic catalysis using said catalyst. 1. A heterogeneous enzymatic catalyst , in the form of a cellular monolith comprising:{'sub': A', 'E, 'a silica monolith, said monolith being free of micropores and having macropores having a mean size dof from 1 μm to 100 μm and mesopores having a mean size dof from 2 to 50 nm, said macropores being interconnected, and in which the internal surface of the macropores is functionalized with a coupling agent, chosen from silanes, to which an enzyme is attached by means of either one of a covalent or electrostatic bond.'}2. The catalyst as claimed in claim 1 , wherein the enzyme immobilized is an unpurified enzyme.3. The catalyst as claimed in claim 1 , wherein the macropores have a mean size dranging from 10 to 100 μm.4. The catalyst as claimed in claim 1 , wherein said monolith has a specific surface area of from 200 to 1000 m/g.5. The catalyst as claimed in claim 1 , wherein the coupling agent is chosen from silanes selected from the group consisting of γ-glycidoxypropyltrimethoxysilane; silylated ionic liquids and silanes of formula Si(OR)Rin which Rrepresents a C-Calkyl group claim 1 , and Rrepresents a —(CHOH—CHOH)—CHOH or —(CHOH—CHOH)—CHCHgroup in which q is an integer ranging from 1 to 10.6. The catalyst as claimed in claim 5 , wherein the coupling agent is γ-glycidoxypropyltrimethoxysilane.7. The catalyst as claimed in claim 1 , wherein the enzyme is selected from the group consisting of hydrolases claim 1 , lyases claim 1 , isomerases and oxidoreductases.8. The catalyst as claimed in claim 7 , wherein the enzyme is a hydrolase ...

Organic-inorganic hybrid nanofibres having a mesoporous inorganic phase, preparation thereof by electrospinning, membrane, electrode, and fuel cell

Organic-inorganic hybrid nanofibres comprising two phases: a first mineral phase comprising a structured mesoporous network with open porosity; and a second organic phase comprising an organic polymer, wherein said organic phase is basically not present inside the pores of the structured mesoporous network. A membrane and an electrode comprising said nanofibres. A fuel cell comprising said membrane and/or said electrode. A method of preparing said nanofibres by electrically assisted extrusion (electrospinning).

SPHERICAL MATERIAL BASED ON HETEROPOLYANIONS TRAPPED IN A MESOSTRUCTURED OXIDE MATRIX AND USE THEREOF AS CATALYST IN HYDROCARBON REFINING PROCESSES

Inorganic material having at least two elementary spherical particles, each of said spherical metallic particles: a polyoxometallate with formula (XMOH), where H is hydrogen, O is oxygen, X is phosphorus, silicon, boron, nickel or cobalt and M is one or more vanadium, niobium, tantalum, molybdenum, tungsten, iron, copper, zinc, cobalt and nickel, x is 0, 1, 2 or 4, m is 5, 6, 7, 8, 9, 10, 11, 12 or 18, y is 17 to 72, h is 0 to 12 and q is 1 to 20. 1. An inorganic material constituted by at least two elementary spherical particles , each of said spherical particles comprising metallic particles in the form of a polyoxometallate with formula (XMOH) , where H is a hydrogen atom , O is an oxygen atom , X is an element selected from phosphorus , silicon , boron , nickel and cobalt and M is one or more elements selected from vanadium , niobium , tantalum , molybdenum , tungsten , iron , copper , zinc , cobalt and nickel , x being equal to 0 , 1 , 2 , or 4 , m being equal to 5 , 6 , 7 , 8 , 9 , 10 , 11 , 12 or 18 , y being in the range 17 to 72 , h being in the range 0 to 12 and q being in the range 1 to 20 (y , h and q being whole numbers) , said metallic particles being present within a mesostructured matrix based on an oxide of at least one element Y selected from the group constituted by silicon , aluminium , titanium , tungsten , zirconium , gallium , germanium , tin , antimony , lead , vanadium , iron , manganese , hafnium , niobium , tantalum , yttrium , cerium , gadolinium , europium and neodymium and a mixture of at least two of these elements , said matrix having pores with a diameter in the range 1.5 to 50 nm and having amorphous walls with a thickness in the range 1 to 30 nm , said elementary spherical particles having a maximum diameter of 200 microns.2. A material according to claim 1 , in which said mesostructured matrix is constituted by aluminium oxide claim 1 , silicon oxide or a mixture of silicon oxide and aluminium oxide.3. A material according to ...

PROCESS FOR PREPARING A SPHERICAL MATERIAL WITH A HIERARCHICAL POROSITY COMPRISING METALLIC PARTICLES TRAPPED IN A MESOSTRUCTURED MATRIX

A process is described for the preparation of an inorganic material with a hierarchical porosity in the micropore and mesopore domains. The material has at least two elementary spherical particles having a maximum diameter of 200 microns. The process comprises: 1. A process for the preparation of an inorganic material with a hierarchical porosity in the micropore and mesopore domains , said material being constituted by at least two elementary spherical particles having a maximum diameter of 200 microns , each of said spherical particles comprising metallic particles containing at least one or more metals selected from vanadium , niobium , tantalum , molybdenum , tungsten , iron , copper , zinc , cobalt and nickel , said metallic particles being present within a matrix , which is mesostructured , based on silicon oxide , having microporous walls with a thickness in the range 1 to 60 nm , said process comprising at least the following steps:a) preparing a solution containing zeolitic nanocrystals with a maximum nanometric dimension equal to 60 nm based on silicon and/or precursor elements of proto-zeolitic entities based on silicon;{'sub': inorganic', 'organic, 'b) mixing, in solution, said metallic particles or at least one metallic precursor of said metallic particles, at least one surfactant and at least said solution obtained in accordance with a) such that the ratio of the volumes of inorganic and organic materials, V/V, is in the range 0.29 to 0.50;'}c) aerosol atomization of said solution obtained in step b) in order to result in the formation of spherical droplets;d) drying said particles;g) eliminating at least said template and at least said surfactant.2. A preparation process according to claim 1 , wherein following said step d) claim 1 , a step e) is carried out consisting of autoclaving the particles obtained from said step d) then carrying out a step f) consisting of drying said particles obtained at the end of said step e).3. A preparation process ...

SPHERICAL MATERIAL COMPRISING METALLIC NANOPARTICLES TRAPPED IN A MESOSTRUCTURED OXIDE MATRIX AND ITS USE AS A CATALYST IN REFINING PROCESSES

An inorganic material is described, constituted by at least two elementary spherical particles, each of said spherical particles comprising metallic nanoparticles having at least one band with a wave number in the range 750 to 1050 cmin Raman spectroscopy and containing one or more metals selected from vanadium, niobium, tantalum, molybdenum and tungsten, said metallic nanoparticles being trapped in a mesostructured matrix based on an oxide of an element Y selected from silicon, aluminium, titanium, tungsten, zirconium, gallium, germanium, tin, antimony, lead, vanadium, iron, manganese, hafnium, niobium, tantalum, yttrium, cerium, gadolinium, europium and neodymium. Said matrix has pores with a diameter in the range 1.5 to 50 nm and amorphous walls with a thickness in the range 1 to 30 nm. Said elementary spherical particles have a maximum diameter of 200 microns and said metallic nanoparticles have a maximum dimension strictly less than 1 nm. 1. An inorganic material constituted by at least two elementary spherical particles , each of said spherical particles comprising metallic nanoparticles having at least one band with a wave number in the range 750 to 1050 cmin Raman spectroscopy and containing at least one or more metals selected from vanadium , niobium , tantalum , molybdenum and tungsten , said metallic nanoparticles being present within a mesostructured matrix based on an oxide of at least one element Y selected from the group constituted by silicon , aluminium , titanium , tungsten , zirconium , gallium , germanium , tin , antimony , lead , vanadium , iron , manganese , hafnium , niobium , tantalum , yttrium , cerium , gadolinium , europium and neodymium and a mixture of at least two of these elements , said matrix having pores with a diameter in the range 1.5 to 50 nm and having amorphous walls with a thickness in the range 1 to 30 nm , said elementary spherical particles having a maximum diameter of 200 microns and said metallic nanoparticles having a ...

INJECTABLE COLLAGEN SUSPENSIONS, THE PREPARATION METHOD THEREOF, AND THE USES THEREOF, PARTICULARLY FOR FORMING DENSE COLLAGEN MATRICES

Disclosed is the preparation of injectable collagen suspensions, to the method for preparing the suspensions, and to the uses thereof, particularly for forming dense collagen matrices. 1. A vesicle comprising or consisting of non-denatured and uncrosslinked collagen , ATP and an aqueous phase ,the diameter of said vesicle being from 0.1 μm to 10 μm, in particular from 0.2 μm to 5 μm.2. A suspension claim 1 , comprising or consisting of vesicles according to claim 1 , in an aqueous solution claim 1 ,the aqueous phase of the vesicles and the aqueous solution of the suspension being particularly of the same kind, in particular identical,and/orsaid suspension additionally comprising particularly solid spherical or spheroid particles formed fundamentally of non-denatured and uncrosslinked collagen,the diameter of said particles being from 0.05 to 20 μm,and/orthe collagen concentration being particularly from 0.1 to 200 mg per ml of suspension, in particular from 1 to 200 mg per ml of suspension, the viscosity being particularly from 1.7 to 253 mPa.s for collagen concentrations from 1.45 to 28 mg per ml of suspension, respectively,and/orthe collagen/ATP ratio being particularly, from the point of contacting, from 0.1 to 10.3. A method for preparing a suspension according to claim 2 , comprising a step of contacting claim 2 , with stirring claim 2 , an aqueous solution of non-denatured and uncrosslinked collagen with ATP to obtain said suspension claim 2 ,said method comprising particularly, after the contacting step, a step of concentration of the suspension, in particular by centrifugation of the suspension in order to obtain a pellet and a supernatant, followed by removal of all or part of the supernatant obtained at the end of the centrifugation of the suspension, in order to obtain a concentrated suspension.4. A spherical or spheroid solid particle formed fundamentally of non-denatured and uncrosslinked collagen claim 2 , the diameter of said particle being from 0.05 ...

PROCESS FOR MANUFACTURING A MATERIAL WITH A HIGH SPECIFIC SURFACE AREA

A process for manufacturing a material with a high specific surface area, including a step of spraying a liquid composition based on liquid residues derived from a chemical extraction of clinker, to a material based on clinker residues having a high specific surface area ranging from 200 m·gto 900 m·gand also by a mesopore size ranging from 2 nm to 50 nm, and to the use of materials for the absorption of pollutants species. 117-. (canceled)18. A process for manufacturing a material with a high specific surface area , comprising a step of spraying of a liquid composition based on liquid residues derived from a chemical extraction of clinker.19. The manufacturing process as claimed in claim 18 , comprising a preliminary step of preparing said liquid composition.20. The manufacturing process as claimed in claim 19 , wherein the composition is prepared by mixing the liquid residues derived from a chemical extraction of clinker and a structuring agent.21. The manufacturing process as claimed in claim 20 , wherein the liquid residues derived from a chemical extraction of clinker are obtained by solid/liquid extraction of clinker.22. The manufacturing process as claimed in claim 21 , wherein the solid/liquid extraction is performed with an acidic and/or oxidizing solution.23. The manufacturing process as claimed in claim 22 , wherein the acidic and/or oxidizing solution is at least one of a hydrochloric acid (HCl) claim 22 , sulfuric acid (HSO) claim 22 , hydrofluoric acid (HF) claim 22 , sodium oxide (NaO) or potassium oxide (KO) solution.24. The manufacturing process as claimed in claim 20 , wherein the structuring agent is at least one of surfactants claim 20 , polymers claim 20 , cellulose-based compounds claim 20 , and mineral salts.25. The manufacturing process as claimed in claim 18 , wherein the composition based on liquid residues derived from the chemical extraction of clinker also comprises a precursor.26. The manufacturing process as claimed in claim 25 , ...

Method of olefin metathesis using a catalyst based on a spherical material comprising oxidised metal particles trapped in a mesostructured matrix

A process for metathesis of olefins, bringing olefins into contact with a catalyst activated by heating to a temperature in the range 100° C. to 1000° C. in an atmosphere of non-reducing gas, the catalyst containing at least one inorganic material having at least two elementary spherical particles, each of which are metal oxide particles with a size of at most 300 nm and containing at least one of tungsten, molybdenum, rhenium, cobalt, tin, ruthenium, iron or titanium, alone or a mixture, the metal oxide particles being present within a mesostructured matrix of an oxide of at least one element Y: silicon, aluminium, titanium, tungsten, zirconium, gallium, germanium, tin, antimony, lead, vanadium, iron, manganese, hafnium, niobium, tantalum, yttrium, cerium, gadolinium, europium or neodymium or a mixture thereof, the matrix having pore size 1.5 to 50 nm and amorphous walls with thickness 1 to 30 nm and maximum diameter of 200 μm.

PROCESS FOR PREPARING AN EPITAXIAL ALPHA-QUARTZ LAYER ON A SOLID SUPPORT, MATERIAL OBTAINED AND USES THEREOF

The present invention relates to a process for preparing epitaxial α-quartz layers on a solid substrate, to the material obtained according to this process, and to the various uses thereof, especially in the electronics field. 1. Process for preparing an epitaxial α-quartz layer on a solid support , comprising the following steps:i) a step of preparing a composition containing, in a solvent, at least one silica and/or colloidal silica precursor;ii) a step of depositing a layer of the composition obtained above in step i) onto at least part of the surface of a substrate and the formation of an amorphous silica matrix layer;iii) a step of heat treatment of the amorphous silica matrix layer obtained in step ii) to obtain an epitaxial α-quartz layer,wherein:{'sub': 1-x', 'x', '2, 'the substrate is a self-supporting substrate chosen from mono-oriented crystalline silicon, germanium dioxide, corundum, magnesium oxide, strontium titanate, lithium niobiate, lithium tantalate, cerium oxide, gadolinium cerium mixed oxides Ce()CidOin which x is such that 0 Подробнее

NANOSTRUCTURED AMORPHOUS BORON MATERIAL

A nanostructured material consisting essentially of boron. The material is in amorphous form and comprising aggregates of boron nanoparticles. A method of preparation thereof and the uses thereof. 1. Nanostructured material consisting essentially of boron , wherein said material is in amorphous form and that it comprises aggregates of boron nanoparticles with a size less than or equal to 25 nm.2. Material according to claim 1 , wherein said material consists of at least 85 mol % of boron claim 1 , the remainder being inevitable impurities resulting from the method for producing said material and/or from its oxidation and/or from the equipment used in the production process.3. Material according to claim 2 , wherein the inevitable impurities resulting from the method for producing said material are one or more of the following elements: Li claim 2 , Na claim 2 , K claim 2 , Rb claim 2 , Cs claim 2 , I claim 2 , Cl claim 2 , Br claim 2 , F.4. Material according to claim 2 , wherein the inevitable impurities comprise at most 5 mol % of oxygen.5. Material according to claim 1 , wherein said material has a specific surface area Sof at least 500 m/g claim 1 , said specific surface area Sbeing calculated by the BET method.6. Material according to claim 1 , wherein said material has a density in the range from 1.1 to 2.3 claim 1 , said density being measured with a helium pycnometer.7. Method for preparing a nanostructured material consisting essentially of boron as per claim 1 , wherein said method comprises at least one step i) of heating claim 1 , under an inert atmosphere claim 1 , of a mixture comprising at least one boron hydride and at least one inorganic salt claim 1 , step i) being carried out at a temperature Tsufficient to decompose said boron hydride and for said salt to be at least partially in the molten state claim 1 , and in that it further comprises:a step ii) of cooling the mixture obtained at the end of step i), anda step iii) of purification of the ...

MEMBRANE D ECHANGE PROTONIQUE HYBRIDE

The present application relates to a proton exchange membrane for fuel cell, said membrane having self-regenerating properties, to cells comprising said membranes, and to the manufacturing method thereof via electrospinning. 1. A proton exchange membrane for fuel cell , said membrane comprising an anode surface on the anode side and a cathode surface on the cathode side , said membrane comprising two layers:{'sub': '3', 'a conducting and self-regenerating cathodic layer, ensuring the cathode surface and comprising at least one polymer (iii) carrying SOH functions; and'}{'sub': '3', 'a conducting anodic layer ensuring the anode surface and comprising at least one polymer (iii′) carrying SOH functions;'}said polymers (iii) and (iii′) possibly being the same or different.said membrane being characterized in that said cathodic layer contains at least one polymer (i) carrying thiol (—SH) functions.2. The membrane according to claim 1 , such that said cathodic layer and/or said anodic layer further comprise(s) an inorganic polymer (ii) and/or (ii′) respectively; said polymers (ii) and (ii′) possibly being the same or different.3. The membrane according to claim 1 , such that polymer (i) carrying SH functions is (3-mercaptopropyl)trimethoxysilane (MPTMS).4. The membrane according to claim 1 , such that the polymer (ii) and/or (ii′) is TEOS (tetraethyl orthosilicate) or TMOS (tetramethyl orthosilicate).5. The membrane according to claim 1 , such that the polymer (iii) and/or (iii′) is CSPTC (2-(4-Chlorosulfonylphenyl)ethyltrichlorosilane).6. The membrane according to claim 1 , such that within said cathodic layer the ratio of the concentration of SOH functions to the concentration of SH functions is between 0.5 and 4 claim 1 , preferably between 1 and 4.7. The membrane according to claim 1 , such that said cathodic layer has a thickness of between 3 and 15 μm claim 1 , in particular between 5 and 10 μm claim 1 , and preferably between 5 and 7 μm.8. The membrane according to ...

HYBRID MATERIAL AND METHOD FOR THE PRODUCTION THEREOF

The invention relates to a material in the form of a cellular solid monolith consisting of an inorganic oxide polymer. Said monolith comprises macropores which have an average size dof 4 μm to 50 μm, mesopores that have an average size dof 20 to 30 Å, and micropores which have an average size dof 5 à 10 Å, said pores being interconnected. The inorganic oxide polymer has organic groups R of formula —(CH)—R, wherein 0≤n≤5, and Ris selected from among a thiol group, a pyrrole group, an amino group having one or more optional, optionally substituted alkyl, alkylamino, or aryl substituents, an alkyl group, or a phenyl group optionally having an alkyl-type substituent R. The disclosed material can be used as a substrate for a metal catalyst and for decontaminating liquid or gaseous media. 1. A material in the form of a solid cellular monolith comprising a polymer of an inorganic oxide , wherein:{'sub': A', 'E', 'I, 'said cellular monolith has macropores having a mean size dfrom 4 μm to 50 μm, mesopores having a mean size dfrom 20 to 30 Å and micropores having a mean size dfrom 5 to 10 Å, said pores being interconnected;'}{'sub': 2', 'n, 'sup': 1', '1, 'the inorganic oxide polymer carries organic R groups corresponding to the formula —(CH)—Rin which 0≤n≤5, and Rrepresents a thiol group, a pyrrolyl group, an alkyl group, an amino group that may carry one or more possibly substituted alkyl, alkylamino or aryl substituents, or a phenyl group that may carry an alkyl substituent.'}2. The material as claimed in claim 1 , wherein the inorganic oxide is an oxide of one or more elements claim 1 , at least one of these elements being of the type capable of forming an alkoxide.3. The material as claimed in claim 2 , wherein at least one of the metals is chosen from Si claim 2 , Ti claim 2 , Zr claim 2 , Th claim 2 , Nb claim 2 , Ta claim 2 , V claim 2 , W and Al.4. The material as claimed in claim 2 , wherein the oxide is a mixed oxide additionally containing B and Sn.5. The material ...

FLUOROPOLYMER FILM

The present invention pertains to a fluoropolymer film comprising at least one fluoropolymer hybrid organic/inorganic composite [polymer (FH)], to a process for the manufacture of said fluoropolymer film and to uses of said fluoropolymer film in various applications, in particular in electrochemical applications. 1. A fluoropolymer film comprising at least one fluoropolymer hybrid organic/inorganic composite [polymer (FH)] obtainable by hydrolysis and/or condensation of at least one grafted fluoropolymer [polymer (FG)] , said polymer (FG) comprising:a fluorinated main chain comprising recurring units derived from at least one fluorinated monomer (F) and at least one hydrogenated monomer (H),{'sub': m-1', '4-m, 'at least one pendant side chain comprising an end group of formula —O-AYX(I-M1), wherein m is an integer from 1 to 3, A is a metal selected from the group consisting of Si, Ti and Zr, Y is a hydrolysable group and X is a hydrocarbon group comprising at least one sulphonic group in its acid, ester, salt or halide form, and'}{'sub': m′-1', '4-m′, 'at least one pendant side chain comprising an end group of formula —O-A′Y′X′ (II-M2), wherein m′ is an integer from 1 to 4 and, according to certain embodiments, from 1 to 3, A′ is a metal selected from the group consisting of Si, Ti and Zr, Y′ is a hydrolysable group and X′ is a hydrocarbon group.'}2. The fluoropolymer film according to claim 1 , wherein the mole ratio of the end groups of formula —O-AYX(I-M1) to the end groups of formula —O-A′Y′X′ (II-M2) in polymer (FG) is at most 2.0.3. The fluoropolymer film according to claim 1 , wherein the mole ratio of the end groups of formula —O-AYX(I-M1) to the end groups of formula —O-A′Y′X′ (II-M2) in polymer (FG) is at least 0.01.4. The fluoropolymer film according to claim 1 , wherein the fluorinated main chain of the polymer (FG) comprises recurring units derived from vinylidene fluoride (VDF) claim 1 , at least one monomer (H) and claim 1 , optionally claim 1 , at ...

METHOD FOR PRODUCING A WATERPROOF AND ION-CONDUCTING FLEXIBLE MEMBRANE

A method for producing a waterproof and ion-conducting flexible membrane intended for protecting a metal electrode. It comprises a synthesis by electrically assisted extrusion of compact fibers forming an ion-conducting fiber array comprising a first material. The fiber array defines a first surface and a second surface opposite the first surface. Subsequently, the fiber array is impregnated with a polymer of a second material, to form a metal electrode protection membrane. The fiber array forms paths for conducting ions between the first surface and the second surface and through the second material. The first surface is intended to be in contact with the metal electrode. 1. A method for producing a waterproof and ion-conducting flexible membrane intended for protecting a metal electrode comprising:synthesizing, by electrically assisted extrusion, sealant fibers forming a fiber array of ion-conducting fibers comprising at least one first material, the fiber array defining a first surface and a second surface opposite the first surface;impregnating the fiber array with a polymer of a second material, to form a metal electrode protection membrane, the fiber array forming ion conduction paths between the first and second surfaces and through the polymer of the second material, the first surface being intended to be in contact with the metal electrode.2. The method according to claim 1 , further comprising:protecting an electrode of a metal-air type electrochemical cell based on an alkali metal from an aqueous medium, by means of the membrane, the polymer in the membrane impregnation step being waterproof and gas-proof and electrically insulating.3. The method according to claim 1 , wherein the fiber array impregnation further comprises:removing the polymer on a surface of the membrane such that the first surface of the fiber array is devoid of polymer.4. The method according to claim 1 , wherein the first material is present in the form of inorganic particles claim 1 ...

Sol-gel method for producing an anti-corrosion coating on a metal substrate

A sol-gel method for producing an anti-corrosion coating consisting of at least one layer of an oxide on a metal substrate. A non-aqueous solution of a precursor of the oxide is prepared and deposited on one surface at least of the metal substrate in order to cover said surface at least partially with a film comprising the precursor of the oxide. Hydrolysis-condensation of the precursor of the oxide is carried out by exposing the film to a humid atmosphere in order to form an oxide network in the film. Then, a treatment for stabilizing the film on the surface of the substrate is carried out, followed by a heat treatment of the surface of the metal substrate in order to crystallize the network of oxide and form the anti-corrosion coating.

COSMETIC COMPOSITION BASED ON ORGANIC SILICON COMPOUNDS, LITTLE OR NOT POLYMERIZED, SOLUBLE IN WATER AND COMPRISING AT LEAST ONE NON-BASIC SOLUBILIZING FUNCTION

Organic/inorganic hybrid conductive material, useful in the preparation of membrane fuel cells, comprises a mineral phase and an integrated oligomer or polymer

Hybrid conductive organic/inorganic material comprises a mineral phase with an open pore structure into which an oligomer or organic polymer is integrated and bonded covalently, and optionally another phase in the interior of the pores comprising a surfactant. At least one of the mineral and polymer phases has a conductive and/or hydrophilic function. Independent claims are also included for: t (1) the preparation of the material; and (2) a fuel cell comprising the material as a membrane or electrode.

CRYSTALLIZED MATERIAL COMPRISING SILICON HIERARCHISED AND ORGANIZED POROSITY

PROCESS FOR PREPARING A CARBON MONOLITH OR ALVEOLAR CERAMIC COMPRISING A HIERARCHISED POROUS NETWORK

PROCESS FOR THE PREPARATION OF A SPHERICAL MATERIAL HIERARCHISED POROSITY COMPRISING METALLIC PARTICLES PIEGEES IN A MATRIX BASED ON SILICON

The invention relates to a method for preparing an inorganic material having a hierarchized porosity in the microporosity, mesoporosity, and macroporosity ranges, said material consisting of at least two basic spherical particles having a maximum diameter of 200 microns, each of said spherical particles including metal particles trapped in a silicon-oxide matrix, said method including the following steps: a) preparing a solution containing a structuring agent and a silicic precursor; b) mixing said metal particles or at least one metal precursor of said metal particles, a surfactant, and said solution obtained according to step a) into a solution, such that the ratio V(inorganic)/V(organic) is between 0.09 and 0.28; c) atomizing, by means of an aerosol, said solution obtained in step b) in order to form spherical droplets; d) drying said particles; and e) removing said structuring agent and said surfactant.

Hybrid organic/inorganic material, useful for the preparation of a membrane or electrode suitable for use in a fuel cell, comprises a mesoporous inorganic phase and an organic phase

The hybrid material comprises two phases, a primary mineral phase consisting of an open-pore mesoporous structure and a secondary phase comprising an organic polymer. Independent claims are also included for: (1) the preparation of the material; and (2) membranes or electrodes constructed from the material.

PROCESS FOR THE PREPARATION OF A SPHERICAL MATERIAL HIERARCHISED POROSITY COMPRISING METALLIC PARTICLES PIEGEES IN A MESOSTRUCTURED MATRIX

A process is described for the preparation of an inorganic material with a hierarchical porosity in the micropore and mesopore domains. The material has at least two elementary spherical particles having a maximum diameter of 200 microns. The process comprises: a) preparing a solution containing zeolitic nanocrystals with a maximum nanometric dimension equal to 60 nm based on silicon and/or precursor elements of proto-zeolitic entities based on silicon; b) mixing, in solution, metallic particles or at least one metallic precursor of metallic particles, a surfactant and the solution obtained in accordance with a) such that the ratio of the volumes of inorganic and organic materials, Vinorganic/Vorganic, is 0.29 to 0.50; c) aerosol atomization of the solution obtained in b) resulting in formation of spherical droplets; d) drying the droplets; g) eliminating the template and surfactant.

Mixed organic-inorganic polymers, process for their preparation and their use as filled polymeric materials

Mixed polymers consisting of a metaloxopolymer network derived especially from an alkoxide of metal M, the M atoms being bonded to or associated with an organic polymer derived from an ethylenically unsaturated monomer through the intermediacy of radicals originating from the dissociation of a ligand compound of the said alkoxide and initiator of polymerisation by a radical route. The are prepared by complexing the said alkoxide with the initiator ligand, inorganic polycondensation - hydrolysis and organic polycondensation of an unsaturated monomer. Use as filled polymeric materials with improved properties or as fillers for polymers.

USE OF NANOSTRUCTURE MATERIAL AS PROTECTIVE COATING OF METAL SURFACES

The present invention relates to the use of a nanostructured material, as a protective coating for metallic surfaces, said nanostructured material comprising functionalized nano-building blocks and a polymer or hybrid organic/inorganic matrix. It also relates to a particular nanostructured material in which the matrix is prepared from at least three silicon alkoxides.

HETEROGENEOUS ENZYMATIC CATALYST, PROCESS FOR PREPARATION AND USE

SOL-GEL PROCESS FOR MANUFACTURING AN ANTICORROSION COATING ON METALLIC SUBSTRATE

L'invention se rapporte à un procédé sol-gel de fabrication d'un revêtement anticorrosion constitué d'au moins une couche (31, 32) d'un oxyde sur un substrat métallique (10). Une solution non-aqueuse (1) d'un précurseur de l'oxyde est préparée (S1) et déposée (S2) sur une surface (11) au moins du substrat métallique pour recouvrir au moins partiellement ladite surface par un film (20) comprenant le précurseur de l'oxyde. Une hydrolyse-condensation du précurseur de l'oxyde est réalisée (S3) par exposition du film à une atmosphère humide afin de former un réseau d'oxyde dans le film. Ensuite, un traitement de stabilisation du film sur la surface du substrat est effectué (S4), suivi d'un traitement thermique (S5) de la surface du substrat métallique pour cristalliser le réseau d'oxyde et former le revêtement anticorrosion.

MESOSTRUCTURE MATERIAL WITH A HIGH ALUMINUM CONTENT AND CONSISTING OF SPHERICAL PARTICLES OF A SPECIFIC SIZE

On décrit un matériau mésostructuré constitué d'au moins deux particules sphériques élémentaires, chacune desdites particules comprenant une matrice mésostructurée à base d'oxyde d'aluminium, ladite matrice ayant un diamètre de pores compris entre 1,5 et 30 nm et une teneur en oxyde d'aluminium représentant plus de 46% poids par rapport à la masse de ladite matrice, laquelle présente des parois amorphes d'épaisseur comprise entre 1 et 30 nm, lesdites particules sphériques élémentaires ayant un diamètre D supérieur à 10 &mum et inférieur ou égal à 100 &mum (10 < D (&mum) <= 100). Ladite matrice mésostructurée peut également contenir de l'oxyde de silicium. Chacune des particules sphériques du matériau mésostructuré peut également contenir des nanocristaux zéolithiques de manière à former un matériau à porosité mixte de nature à la fois mésostructurée et zéolithique. On décrit également la préparation dudit matériau. A mesostructured material consisting of at least two elementary spherical particles is described, each of said particles comprising a mesostructured matrix based on aluminum oxide, said matrix having a pore diameter of between 1.5 and 30 nm and a content of aluminum oxide representing more than 46% by weight relative to the mass of said matrix, which has amorphous walls with a thickness of between 1 and 30 nm, said elementary spherical particles having a diameter D greater than 10 μm and less than or equal to at 100 & mum (10 <D (& mum) <= 100). Said mesostructured matrix may also contain silicon oxide. Each of the spherical particles of the mesostructured material may also contain zeolite nanocrystals so as to form a mixed porosity material of both mesostructured and zeolitic nature. The preparation of said material is also described.

ORGANIC-INORGANIC HYBRID MATERIAL COMPRISING A MESOPOROUS MINERAL PHASE AND AN ORGANIC PHASE, MEMBRANE AND FUEL CELL

The hybrid material comprises two phases, a primary mineral phase consisting of an open-pore mesoporous structure and a secondary phase comprising an organic polymer. Independent claims are also included for: (1) the preparation of the material; and (2) membranes or electrodes constructed from the material.

Material comprising UV-A organic solar filter, used in cosmetic and dermatological compositions, contains zirconium alkoxide, organic or silicone functionalized polymer and solvent

The material comprises: (a) at least one zirconium alkoxide, (b) at least one UV-A organic solar filter with maximum absorption wavelength below 370 nm, (c) at least one functionalized organic polymer or its precursor, or functionalized silicone polymer or its precursor, d) at least one solvent, and (d) sufficient water quantity for partial and/or total hydrolysis of zirconium alkoxide and its condensation. The material has maximum absorption wavelength 370-400 nm. Independent claims are also included for: (i) a process of moving maximum absorption wavelength ( lambda max) of UV-A organic solar filter from its original level below 370 nm to the spectrum range 370-400 nm, comprising associating the filter with the sol material (comprising components (a), (b), (c), (d) and (e) as described) as claimed, with zirconium alkoxide (a) preferably mixed with solution of polymer (c) before the addition of solar filter (b); and (ii) a cosmetic and/or dermatological composition comprising 1-99 (preferably 5-60) wt.% of material as claimed, optionally in form of particles obtained by drying and grinding, of particle size 0.1-20 (preferably 0.1-10) nm, and optional additive selected from other organic solar filters, bronzing and/or artificial tanning agents, pigments, fats, organic solvents, thickeners and antioxidants.

AMORPHOUS MATERIAL COMPRISING HIERARCHISED AND ORGANIC POROSITY SILICON

New catalyst comprising a carrier, bromine and nickel metal nanoparticles, useful for a selective hydrogenation of 2C polyunsaturated hydrocarbon charge

Catalyst comprising a carrier, bromine and nickel metal nanoparticles exhibiting 50% of crystallographic planes (111), is new. Independent claims are included for: (1) preparing the catalyst; and (2) selective hydrogenation process comprising contacting the catalyst, in presence of hydrogen, with 2C polyunsaturated hydrocarbon charge having a boiling point of = 250[deg] C.

MICRO-FLUIDIC DEVICE FOR CONVEYING A PRODUCT BY DIFFUSION IN A POROUS SUBSTRATE

Material with hierarchical porosity and organized in area of microporosity and mesoporosity comprises two spherical elementary particles, where at least one of the spherical particles comprises a mesostructured silicon oxide based matrix

Material with hierarchical porosity and organized in the area of a microporosity and mesoporosity comprises at least two spherical elementary particles, where at least one of the spherical particles comprise a mesostructured silicon oxide based matrix having mesoporous diameter of 1.5-30 nm, and having microporous and crystalline walls thickness of 1-60 nm, and the spherical elementary particles have maximum diameter of 200 microns. Independent claims are included for the preparation of the material comprising: either preparing a clear solution containing precursor elements of zeolite entities, such as structuring agent, at least a silica precursor and optionally at least a precursor of an element X comprising aluminum, iron, boron, indium and gallium, or preparing at least one silica precursor and optionally at least a precursor of the element X, a solution containing zeolite nanocrystal having maximum nanometry of 60 nm, from at least one structuring agent to obtain a colloidal solution, which are dispersed nanocrystals, or redispersing zeolite crystal in solution to obtain colloidal solution of zeolite nanocrystal having maximum nanometry of 60 nm; mixing at least one surfactant, at least the colloidal solution and the clear solution into a solution, where the volume ratio of the inorganic to organic material is 0.26-4; spraying the solution by aerosol obtained in the mixing step for the formation of spherical droplets, drying the droplets; and eliminating the structuring agent and the surfactant to obtain the crystallized material with hierarchized porosity and organized in the area of microporosity and mesoporosity.

INORGANIC MATERIAL FORM OF SPHERICAL PARTICLES OF SPECIFIC SIZE AND HAVING METALLIC NANOPARTICLES TRAPPED IN A MESOSTRUCTURED MATRIX

HIERARCHISED POROSITY MATERIAL COMPRISING SILICON

PARTICULAR NANOSTRUCTURE MATERIAL, AS PROTECTIVE COATING OF METAL SURFACES.

L'invention concerne un nouveau matériau nanostructuré comprenant au moins un nanobloc élémentaire à base de silice, d'alumine, de zircone, d'oxyde de titane ou de cérium (IV), fonctionnalisé avec au moins deux agents de fonctionnalisation de formule (1), (2) ou (3) :Z4-xSi((R')p -F)x (1)Z4-x-y(F'-(R')p)ySi((R')p -F)x. (2)Zn-ma-mb(F'-L)maM(L-F)mb (3),et son application dans le domaine aéronautique ou aérospatial comme revêtement protecteur de surfaces métalliques. The invention relates to a new nanostructured material comprising at least one elementary nanoblock based on silica, alumina, zirconia, titanium oxide or cerium (IV), functionalized with at least two functionalizing agents of formula (1). ), (2) or (3): Z4-xSi ((R ') p -F) x (1) Z4-xy (F' - (R ') p) ySi ((R') p -F) x . (2) Zn-ma-mb (F'-L) maM (L-F) mb (3), and its application in the aeronautical or aerospace field as a protective coating for metal surfaces.

ENERGY COMPOSITION COMPRISING AN AMORPHOUS BORE NANOSTRUCTURE MATERIAL

L'invention concerne une composition énergétique solide comprenant au moins une charge oxydante et au moins un matériau nanostructuré essentiellement constitué de bore, ledit matériau étant sous forme amorphe et comprenant des agrégats de nanoparticules de bore, son procédé de préparation, un propergol comprenant une telle composition énergétique solide ainsi que les utilisations de ladite composition et dudit propergol, notamment dans le domaine de la propulsion spatiale, dans le domaine de l'automobile, notamment dans les systèmes de gonflement d'airbags ou tout autre système générateur de gaz, y compris de protection, ou dans le domaine de la génération de hautes pressions pour la fabrication de matériaux, par exemple pour la fabrication du diamant. The invention relates to a solid energetic composition comprising at least one oxidizing charge and at least one nanostructured material consisting essentially of boron, said material being in amorphous form and comprising aggregates of boron nanoparticles, its method of preparation, a propellant comprising such solid energy composition as well as the uses of said composition and said propellant, in particular in the field of space propulsion, in the field of the automobile, in particular in the airbag inflating systems or any other gas generating system, including protection, or in the field of the generation of high pressures for the manufacture of materials, for example for the manufacture of diamond.

Producing semiconductor material useful in photovoltaic cells comprises grafting a porous oxide ceramic substrate with a compound that can be polymerized with a precursor of an electrically conductive polymer

Producing semiconductor material comprises functionalizing a porous oxide ceramic substrate with a compound (I) having a group that can be chemically grafted onto the substrate and a group that can be polymerized with a precursor of an electrically conductive polymer, impregnating the substrate with a solution containing the precursor, and polymerizing the precursor. Independent claims are also included for: (a) p-n semiconductor material produced as above; (b) photovoltaic cell comprising the semiconductor material between a working electrode and a counter electrode.

CRYSTALLIZED MATERIAL WITH HIERARCHISED POROSITY AND COMPRISING SILICON

USE OF NANOSTRUCTURE MATERIAL AS PROTECTIVE COATING OF METAL SURFACES

La présente invention concerne l'utilisation d'un matériau nanostructuré, comme revêtement protecteur de surfaces métalliques, ledit matériau nanostructuré comprenant des nanoblocs élémentaires et une matrice pol ymère ou hybride organique/inorganique.Elle concerne aussi un matériau nanostructuré particulier dans lequel la matrice est préparée à partir d'au moins trois alcoxydes de silicium. The present invention relates to the use of a nanostructured material, as a protective coating of metal surfaces, said nanostructured material comprising elementary nanoblocks and a polymer matrix or organic / inorganic hybrid.It also relates to a particular nanostructured material in which the matrix is prepared from at least three silicon alkoxides.

POROUS OXYFLUORIDE NANOSTRUCTURE

MICRO-FLUIDIC DEVICE FOR CONVEYING A PRODUCT BY DIFFUSION IN A POROUS SUBSTRATE

L'invention a pour objet un dispositif micro-fluidique (1) pour convoyer du produit par diffusion dans un substrat poreux (2) d'une zone d'injection (ZI) de produit (F) à une zone d'arrivée (ZA) de produit reliées par une zone de canalisation de produit (ZE). Selon l'invention, le substrat poreux présente une surface libre (4) qui est partiellement recouverte d'un masque (5,6,7) imperméable au produit et qui s'étend de la zone d'injection (ZI) à la zone d'arrivée (ZA) pour définir dans le substrat la zone de canalisation de produit (ZE), de façon à permettre une évaporation du produit par une portion non recouverte (8,9) de la surface libre (4) The invention relates to a microfluidic device (1) for conveying product by diffusion in a porous substrate (2) from an injection zone (ZI) of product (F) to an arrival zone (ZA ) of product connected by a product pipeline area (ZE). According to the invention, the porous substrate has a free surface (4) which is partially covered by a mask (5,6,7) impermeable to the product and which extends from the injection zone (ZI) to the zone of arrival (ZA) for defining in the substrate the product pipeline zone (ZE), so as to allow evaporation of the product by an uncoated portion (8,9) of the free surface (4)

Cosmetic composition for forming a photochromic coating on a keratinic substrate comprises an organometallic compound, a functionalized organic or silicone polymer or polymer precursor and a photochrome

Composition for forming a non-reversible coating on a keratinic substrate is prepared by a sol-gel process from a mixture of an organometallic compound, a functionalized organic or silicone polymer or polymer precursor, a photochrome, water and optionally an alcohol.

COSMETIC AGENT FOR MAKE-UP REMOVAL OF A FILM-FORMING COATING OF CROSSLINKED HYBRID MATERIAL

Agent cosmétique pour le démaquillage, sur tout substrat kératinique, d'un revêtement filmogène en un matériau hybride réticulé obtenu par réaction sol/ gel. Cet agent est un chélatant utilisé soit seul soit en solution dans un solvant, ledit chélatant ou sa solution étant choisi (e) de telle sorte qu'il forme avec ledit revêtement filmogène un angle de contact inférieur à 90degre. Cosmetic agent for removing make-up from any keratinous substrate of a film-forming coating made of a crosslinked hybrid material obtained by sol / gel reaction. This agent is a chelating agent used either alone or in solution in a solvent, said chelating agent or its solution being chosen such that it forms with said film-forming coating a contact angle of less than 90 °.

HETEROGENEOUS ENZYMATIC CATALYST, PROCESS FOR PREPARATION AND USE

L'invention concerne un catalyseur enzymatique hétérogène se présentant sous forme d'un monolithe alvéolaire constitué d'une matrice de silice ou de silice organiquement modifiée, ledit monolithe comprenant des macropores, des mésopores et des micropores, lesdits pores étant interconnectés, et dans lequel la surface interne des macropores est fonctionnalisée par un agent de couplage choisi parmi les silanes sur lequel est fixée, par l'intermédiaire d'une liaison covalente ou électrostatique, une enzyme non purifiée. L'invention concerne également le procédé de préparation d'un tel catalyseur, ledit procédé comportant : - une première étape de préparation d'une empreinte de silice solide sous la forme d'un monolithe alvéolaire tel que défini ci-dessus, - une deuxième étape de fonctionnalisation de la surface interne des macropores par un agent de couplage choisi parmi les silanes, par imprégnation sous vide du monolithe alvéolaire par une solution de l'agent de couplage dans un solvant organique ; et - une troisième étape d'imprégnation, sous vide, du monolithe ainsi fonctionnalisé par une solution aqueuse ou une dispersion aqueuse d'au moins une enzyme non purifiée. Enfin l'invention concerne l'utilisation d'un tel catalyseur pour la réalisation de réactions chimiques catalysées.

METHOD FOR MANUFACTURING A POROUS MATERIAL FROM INCINERATION BOTTLES

Sols or gels of mixed organic and inorganic polymers, process for their preparation and their application as filled polymeric materials

Sols or gels of mixed organic and inorganic polymers consisting of a network of a crosslinked metaloxopolymer derived especially from an alkoxide of a metal M, the atoms of metal M being chemically bonded to an organic polymer derived from an ethylenic monomer which is a ligand for the said alkoxide. The are prepared by complexing the said alkoxide with monomeric ligand which is stable to hydrolysis and polymerises rapidly, followed by inorganic polycondensation - hydrolysis and organic polycondensation. Use as filled polymeric materials with improved properties or as fillers for polymers.

ALVEOLAR SOLID COMPOSITE MATERIAL COMPRISING METAL NANOPARTICLES, PROCESS FOR PREPARATION AND USES FOR THE REVERSIBLE STORAGE OF HYDROGEN

COMPOSITION COMPRISING PHOTOCHROMES AND USE THEREOF IN COSMETICS

Hierarchical porous material, useful to prepare absorbent and catalyst, comprises two spherical elementary particles, where at least one of the spherical particles comprise a silicon oxide based matrix and having crystallized walls

Hierarchical porous material comprises at least two spherical elementary particles having a maximum diameter of 200 microns, where at least one of the spherical particles comprise a silicon oxide based matrix and having crystallized walls, the material has a macroporous volume measured by mercury porosimetry of 0.05-1 ml/g, a mesoporous volume measured by nitrogen volumetry of 0.01-1 ml/g and a microporous volume measured by nitrogen volumetry of 0.03-0.4 ml/g. An independent claim is included for a preparation of the material, comprising preparing a clear solution containing precursor elements of zeolite, such as structuring agent, at least a silica precursor and optionally at least a precursor of an element X comprising aluminum, iron, boron, indium and gallium, mixing at least one surfactant and the clear solution into a solution, spraying the solution by aerosol obtained in the mixing step for the formation of spherical droplets, drying the droplets, and eliminating the structuring agent and the surfactant to obtain an amorphous material with hierarchical porosity in the range of microporosity, mesoporosity and macroporosity.

PROCESS FOR THE SYNTHESIS OF CUBIC METAL NANOPARTICLES IN THE PRESENCE OF TWO REDUCERS

On décrit un procédé de préparation de nanoparticules métalliques cubiques comportant :a) la préparation d'une solution aqueuse contenant une source d'un métal du groupe VIII, un composé réducteur R1 et un stabilisant,b) la préparation d'une solution aqueuse contenant une source d'un métal du groupe VIII et un stabilisant à une température strictement supérieure à 70 degres C et inférieure ou égale à 80 degres C,c) le mélange d'au moins une partie de la solution aqueuse obtenue à l'étape a) avec la solution aqueuse obtenue à l'étape b) de manière à obtenir, en présence d'un réducteur R2, des nanoparticules métalliques sous forme cubique représentant au moins 70% en nombre de l'ensemble des nanoparticules métalliques formées,d) le dépôt sur un support desdites nanoparticules métalliques issues de l'étape c). A process for preparing cubic metal nanoparticles comprising: a) preparing an aqueous solution containing a source of a Group VIII metal, a reducing compound R1 and a stabilizer, b) preparing an aqueous solution containing a source of a Group VIII metal and a stabilizer at a temperature strictly greater than 70 degrees C and less than or equal to 80 degrees C, c) mixing at least a portion of the aqueous solution obtained in step a ) with the aqueous solution obtained in step b) so as to obtain, in the presence of a reducing agent R2, cubic metal nanoparticles representing at least 70% by number of all the metallic nanoparticles formed, d) the depositing on a support said metal nanoparticles from step c).

Material with a hierarchical porosity comprising silicon

A material with a hierarchical porosity is described, constituted by at least two spherical elementary particles, each of said spherical particles comprising zeolitic nanocrystals having a pore size in the range 0.2 to 2 nm and a matrix based on silicon oxide, which is mesostructured, having a pore size in the range 1.5 to 30 nm and having amorphous walls with a thickness in the range 1 to 20 nm, said spherical elementary particles having a maximum diameter of 10 μm. the matrix based on silicon oxide may contain aluminium. The preparation of said material is also described.

METHOD FOR STORING HYDROGEN IN POROUS MONOLITHIC MATERIAL, COMPOSITE MATERIAL OBTAINED AND APPLICATIONS

PROCESS FOR PREPARING A CARBON MONOLITH OR ALVEOLAR CERAMIC COMPRISING A HIERARCHISED POROUS NETWORK

La présente invention est relative à des matériaux monolithiques de carbone ou céramiques à structure poreuse hiérarchisée M2 (Macroporeux/Microporeux), à leur procédé de préparation à partir d'une empreinte de silice macro/méso/microporeuse, ainsi qu'à leur utilisation, notamment pour la fabrication d'épurateurs d'hydrogène, de super-condensateurs ou d'électrodes ou bien pour la réalisation de réactions chimiques catalysées en phase hétérogène. The present invention relates to monolithic carbon or ceramic materials having a hierarchical M2 (Macroporous / Microporous) porous structure, to their process of preparation starting from a macro / meso / microporous silica footprint, as well as to their use, in particular for the manufacture of hydrogen purifiers, super-capacitors or electrodes or for the realization of catalyzed chemical reactions in heterogeneous phase.

PROCESS FOR THE PREPARATION OF A SPHERICAL MATERIAL HIERARCHISED POROSITY COMPRISING METALLIC PARTICLES PIEGEES IN A MATRIX BASED ON SILICON

On décrit un procédé de préparation d'un matériau inorganique à porosité hiérarchisée dans les domaines de la microporosité, de la mésoporosité et de la macroporosité, ledit matériau étant constitué d'au moins deux particules sphériques élémentaires ayant un diamètre maximal de 200 microns, chacune desdites particules sphériques comprenant des particules métalliques piégées dans une matrice à base d'oxyde de silicium, ledit procédé comprenant les étapes suivantes : a) la préparation d'une solution contenant un agent structurant et un précurseur silicique, b) le mélange en solution desdites particules métalliques ou d'au moins un précurseur métallique desdites particules métalliques, d'un tensioactif et de ladite solution obtenue selon a), c) l'atomisation par aérosol de ladite solution obtenue à l'étape b) pour conduire à la formation de gouttelettes sphériques, d) le séchage desdites particules, g) l'élimination dudit agent structurant et dudit tensioactif. A method of preparing an inorganic material with hierarchical porosity in the fields of microporosity, mesoporosity and macroporosity, said material consisting of at least two elementary spherical particles having a maximum diameter of 200 microns, each said spherical particles comprising metal particles trapped in a silicon oxide-based matrix, said method comprising the following steps: a) the preparation of a solution containing a structuring agent and a silicic precursor, b) the solution mixture of said metal particles or at least one metal precursor of said metal particles, a surfactant and said solution obtained according to a), c) the aerosol atomization of said solution obtained in step b) to lead to the formation of spherical droplets, d) the drying of said particles, g) the elimination of said structuring agent and dudi t surfactant.

PROCESS FOR IMPROVING THE STABILITY TO UV RADIATION OF PHOTOSENSITIVE SOLAR FILTERS

COSMETIC COMPOSITION BASED ON ORGANIC SILICON COMPOUNDS, LITTLE OR NOT POLYMERIZED, SOLUBLE IN WATER, AND COMPRISING TWO NON-HYDROLYSABLE FUNCTIONS OF WHICH AT LEAST ONE HAS A COSMETIC EFFECT

HYBRID ALVEOLA MATERIAL, PROCESS FOR PREPARING THE SAME

Structure, useful in the field of aeronautics/aerospace, comprises metal substrate and mesostructured layer prepared from metal precursor molecule comprising hydrolysable groups of alkoxide/metal halide in presence of texturing agent

Structure comprises metal substrate and at least a mesostructured layer prepared, by sol-gel process, from at least a metal precursor molecule comprising one or more hydrolysable groups of alkoxide or metallic halide type, preferably metallic alkoxide, or alkynylmetal compounds (A), in the presence of at least a texturing agent. Structure comprises metal substrate and at least a mesostructured layer prepared, by sol-gel process, from at least a metal precursor molecule comprising one or more hydrolysable groups of alkoxide or metallic halide type, preferably metallic alkoxide, or alkynylmetal compounds (A) of formula (MZ n) (1), (L(m) xMZ n - mx) (2), (R11 x 1 1M11Z 4 - x) (3) or (Z 3M11-R12-M11Z 3) (4) in the presence of at least a texturing agent comprising: elementary nanoblocks in the form of cluster or nanoparticles, mainly based on at least one metal oxide; ionic amphiphilic surfactants in which the counter-ion is neodymium (Nd 3> +>), praseodymium (Pr 3> +>), cobalt (Co 3> +>), cerium (Ce 3> +>and Ce 4> +>) when the surfactant is anionic, and comprising vanadate, molybdate and permanganate anions when the surfactant is cationic; and amphiphilic surfactants carrying one or more active anticorrosion organic functions and/or complexing metal ions. M : Al(III), Ce(III), Ce(IV), Si(IV), Zr(IV), Sn(IV), Hf(IV), Nb(V), V(V), Ta(V) or rare earth, the number in parenthesis is the valence of the atom M; n : valence of the atom M; x : 1 to n-1; M11 : Si(IV) or Sn(IV); x11 : 1-3; R : 1-4C alkyl; R11 : non-hydrolysable group comprising 1-4C alkyl, 2-4C alkenyl, 2-4C alkynyl, 6-10C aryl, methacryl or methacryloxy(1-10C alkyl), epoxyalkyl or epoxyalkoxyalkyl in which the alkyl group is linear, branched or cyclic 1-10C and the alkoxy group has 1-10C, 2-10C haloalkyl, 2-10C perhaloalkyl, 2-10C mercaptoalkyl, 2-10C aminoalkyl, (2-10C aminoalkyl)amino(2-10C alkyl), di(2-10C alkylene)triamino(2-10C alkyl) or imidazolyl(2-10C alkyl); L : monodentate ...

Improving UV-radiation stability of photosensitive skin-protecting solar filters used in cosmetics involves use of photo-stabilizing material including at least one silicon alkoxide and surfactant

Improving the UV-radiation stability of photosensitive skin-protecting solar filters comprises incorporation of filter into photo-stabilizing material prepared as sol-gel from at least one silicon alkoxide, at least one surfactant, optionally at least one solvent, and water. The latter has pH 1-4, preferably 1-2. Independent claims are also included for: (1) photo-stable material, comprising photosensitive solar filter associated with photo-stabilizing material made by sol-gel way and including: (a) at least one silicon alkoxide, (b) at least one solvent, (c) at least one surfactant and (d) water; and (2) cosmetic and/or dermatological composition comprising filter photo-sensitive to UV irradiation and required quantity of photo-stable material as claimed (preferably 1-60 wt.%), optionally in form of particles obtained by drying and grinding, of particle size 0.1-50 (preferably 0.1-20) microns, as well as optional additives, in form of other solar filters, bronzing agents, pigments, organic solvents, thickeners, softeners and antioxidants.

NOVEL MINERAL COMPOSITIONS FOR USE AS HYDROXYAPATITE PRECURSORS - APPLICATION TO CONCRETE REINFORCEMENT

MATERIAL ALUMINOSILICATE MESOSTRUCTURE FORM OF SPHERICAL PARTICLES OF SPECIFIC SIZE

On décrit un matériau aluminosilicate mésostructuré constitué d'au moins deux particules. sphériques élémentaires, chacune desdites particules sphériques étant constituée d'une matrice à base d'oxyde de silicium et d'oxyde d'aluminium, ladite matrice ayant un diamètre de pores compris entre 1,5 et 30 nm, un rapport molaire Si/Al au moins égal à 1 et présentant des parois amorphes d'épaisseur comprise entre 1 et 30 nm, lesdites particules sphériques élémentaires ayant un diamètre D tel que 10 < D (&mum) <= 100. On décrit également un procédé de préparation dudit matériau et son application dans les domaines du raffinage et de la pétrochimie. A mesostructured aluminosilicate material consisting of at least two particles is described. elementary spheres, each of said spherical particles consisting of a matrix based on silicon oxide and aluminum oxide, said matrix having a pore diameter of between 1.5 and 30 nm, an Si / Al molar ratio at least 1 and having amorphous walls of thickness between 1 and 30 nm, said elementary spherical particles having a diameter D such that 10 <D (m mum) <= 100. A method of preparing said material and its application in the fields of refining and petrochemistry.

Mesostructured aluminosilicate material formed from spherical particles of specific size

A mesostructured aluminosilicate material is described that is composed of at least two elementary spherical particles, each of said spherical particles being composed of a matrix based on silicon oxide and aluminium oxide, said matrix having a pore diameter between 1.5 and 30 nm, an Si/Al molar ratio at least equal to 1 and having amorphous walls of thickness between 1 and 30 nm, said elementary spherical particles having a diameter D such that 10 < D (µm) ≤ 100. Also described is a process for preparing said material and the application thereof in the refining and petrochemistry fields.

Method for improving UV radiation stability of photosensitive sunscreen filters

The invention relates to a process for improving the stability with respect to UV radiation of a photosensitive sunscreen agent, comprising the incorporation of said screening agent in a material prepared by the sol-gel route from at least one silicon alkoxide and from at least one surfactant. It is also targeted at a photostable material which comprises the combination of a photosensitive sunscreen agent and of a photostabilizing material prepared by the sol-gel route including at least one silicon alkoxide and at least one nonionic surfactant and at a cosmetic and/or dermatological composition comprising, in a cosmetically and/or dermatologically acceptable vehicle, an effective amount of a photostable material. This cosmetic and/or dermatological composition is intended mainly for protecting the skin and/or keratinous substances against ultraviolet radiation.

Process for synthesizing cubic metallic nanoparticles in the presence of two reducing agents

Material with hierarchical porosity containing silicon

INORGANIC MATERIAL HAVING METALLIC NANOPARTICLES TRAPPED IN A MESOSTRUCTURED MATRIX

PROCESS FOR MANUFACTURING POROUS MATERIAL FROM INCINERATION MACHEFERS

L'invention concerne un procédé de fabrication d'un matériau poreux comprenant les étapes suivantes de fourniture de mâchefers d'incinération, fourniture d'une solution aqueuse de liant comprenant au moins un liant inorganique et/ou au moins un liant hybride organique-inorganique, mélange desdits mâchefers avec ladite solution aqueuse de liant comprenant au moins un liant inorganique et/ou au moins un liant hybride organique-inorganique, de prise par traitement thermique dudit mélange obtenu et enfin, de récupération du matériau poreux ainsi fabriqué. Le procédé de fabrication permet ainsi de recycler et de valoriser les mâchefers d'incinération par l'intermédiaire de la production d'un matériau poreux. Le procédé est particulièrement intéressant car le matériau poreux peut notamment être obtenu de manière très rapide et peut être utilisé en tant que matériau isolant ou matériau de construction. The invention relates to a method of manufacturing a porous material comprising the following steps of providing incineration slag, providing an aqueous binder solution comprising at least one inorganic binder and / or at least one organic-inorganic hybrid binder mixing said slag with said aqueous binder solution comprising at least one inorganic binder and / or at least one hybrid organic-inorganic binder, heat-treating said obtained mixture and finally recovering the porous material thus produced. The manufacturing process thus makes it possible to recycle and valorize the incineration slag through the production of a porous material. The method is particularly interesting because the porous material can in particular be obtained very quickly and can be used as an insulating material or construction material.

COMPOSITION AND METHOD FOR MAKING PARTS CONSISTING OF OXIDIZED CERAMICS OR HYBRID PARTS BY A STEREOLITHOGRAPHY TECHNIQUE.

Composition pour fabriquer une pièce constituée par au moins une céramique oxyde, ou une pièce hybride comprenant au moins une céramique oxyde et des constituants organiques, par une technique de stéréolithographie, ladite composition comprenant :- au moins un composé organique photopolymérisable ;- au moins un photo-initiateur; - au moins un précurseur de la céramique oxyde ;caractérisé en ce que :- ladite composition comprend de 25% à 70% en masse, de préférence de 25% à 60% en masse, de préférence encore de 30% à 60% en masse, mieux de 40% à 60% en masse, mieux encore de 50% à 60% en masse par rapport à la masse totale de la composition, du au moins un précurseur de la céramique oxyde; et en ce que :- ledit au moins un précurseur de la céramique oxyde comprend, de préférence est constitué par, un mélange comprenant, de préférence constitué par, une poudre nanométrique de la céramique oxyde, et au moins un autre élément choisi parmi une poudre micrométrique de la céramique oxyde et un composé précéramique de la céramique oxyde. Procédé pour fabriquer une pièce mettant en œuvre ladite composition. Composition for manufacturing a part consisting of at least one oxide ceramic, or a hybrid part comprising at least one oxide ceramic and organic constituents, by a stereolithography technique, said composition comprising: - at least one photopolymerizable organic compound; - at least one photo-initiator; - at least one precursor of the oxide ceramic; characterized in that: - said composition comprises from 25% to 70% by mass, preferably from 25% to 60% by mass, more preferably from 30% to 60% by mass , better still from 40% to 60% by mass, better still from 50% to 60% by mass relative to the total mass of the composition, of at least one precursor of the oxide ceramic; and in that: said at least one precursor of the oxide ceramic comprises, preferably consists, a mixture comprising, preferably constituted by, a nanometric powder of the oxide ceramic, and at least one ...

Crystallised material containing silicon with hierarchised and organised porosity

The invention relates to a material having a hierarchised and organised porosity in terms of microporosity and mesoporosity, that comprises at least two elementary spherical particles, each of said particles including a meso-structured silicon-oxide-containing matrix having a mesopore diameter of between 1.5 and 30 nm and having microporous crystallised walls with a thickness of between 1 and 60 nm, wherein said elementary spherical particles have a maximum diameter of 200 microns. The invention also relates to the preparation of said material.

Method for preparing a cellular carbon monolith comprising a hierarchised porous network

The present invention relates to carbon or ceramic monolithic materials with an M2 (macroporous/microporous) hierarchised porous structure, to a method for preparing said materials using a macro/meso/microporous silica cavity, as well as to the use of said materials, in particular for the production of hydrogen purifiers, supercapacitors or electrodes, or else for carrying out catalysed chemical reactions in a heterogeneous phase.

Cosmetic agent for removal of a film formed by cross-linked hybrid material

The invention concerns a cosmetic agent for removing make up, from any keratinous substrate, in the form of a film formed by a cross-linked hybrid material resulting from a sol/gel reaction. Said agent is a chelating agent either on its own or in solution in a solvent, said chelating agent or its solution being selected such that it forms with said formed film a contact angle less than 90·.

Inorganic/organic semiconductor P-N hybrid material, production method thereof and photovoltaic cell comprising same

Mesostructured aluminosilicate material

A mesostructured aluminosilicate material is described, constituted by at least two spherical elementary particles, each of said spherical particles being constituted by a matrix based on silicon oxide and aluminium oxide, having a pore size in the range 1.5 to 30 nm, a Si/Al molar ratio of at least 1, having amorphous walls with a thickness in the range 1 to 20 nm, said spherical elementary particles having a maximum diameter of 10 μm. A process for preparing said material and its application in the fields of refining and petrochemistry are also described.

MESOSTRUCTURE MATERIAL WITH HIGH ALUMINUM CONTENT

On décrit un matériau mésostructuré constitué d'au moins deux particules sphériques élémentaires, chacune desdites particules comprenant une matrice mésostructurée à base d'oxyde d'aluminium, ayant une taille de pores comprise entre 1,5 et 30 nm, une teneur en oxyde d'aluminium représentant plus de 46% poids par rapport à la masse de ladite matrice, laquelle présente des parois amorphes d'épaisseur comprise entre 1 et 30 nm, lesdites particules sphériques élémentaires ayant un diamètre maximal de 10 mum. Ladite matrice mésostructurée peut également contenir de l'oxyde de silicium. Chacune des particules sphériques du matériau mésostructuré peut également contenir des nanocristaux zéolithiques de manière à former un matériau à porosité mixte de nature à la fois mésostructurée et zéolithique. On décrit également la préparation dudit matériau. A mesostructured material consisting of at least two elementary spherical particles, each of said particles comprising a mesostructured matrix based on aluminum oxide, having a pore size of between 1.5 and 30 nm, an oxide content of aluminum representing more than 46% by weight relative to the mass of said matrix, which has amorphous walls of thickness between 1 and 30 nm, said elementary spherical particles having a maximum diameter of 10 mum. Said mesostructured matrix may also contain silicon oxide. Each of the spherical particles of the mesostructured material may also contain zeolite nanocrystals so as to form a mixed porosity material of both mesostructured and zeolitic nature. The preparation of said material is also described.

Conductive organic-inorganic hybrid material comprising a mesoporous phase, membrane, electrode and fuel cell

Cosmetic or dermatological composition forming, on a keratin substrate, a film in cross-linked hybrid material

The invention concerns a cosmetic or dermatological composition designed for forming a film, on a keratin substrate, in cross-linked hybrid material. Said composition is of the sol/gel type and is obtained by mixing: (a) at least an organometallic compound; (b) at least a functionalised organic polymer or said polymer precursor, or at least a functionalised silicone polymer or said polymer precursor, the latter precursor being different from (a); (c) a sufficient amount of water for hydrolysing the organometallic compound; and (d) optionally at least an alcohol; said film being non-reversible.

Cosmetic makeup

"COMPOSIçãO COSMéTICA". A composição compreende, em um meio aquoso cosmeticamente aceitável, pelo menos 0,02%, em peso, em relação ao peso total da composição, de um ou vários compostos orgânicos de silício solúveis em água, tendo um, dois ou três átomos de silício, pelo menos uma função química solubilizante não básica e pelo menos dois grupos hidroxilas ou hidrolisáveis por molécula. Aplicação: às composições capilares.

Inorganic/organic semiconductor p-n hybrid material, production method thereof and photovoltaic cell comprising same

L'invention a trait à un matériau semi~-conducteur P-N susceptible d'être obtenu par un procédé comprenant successivement les étapes suivantes une éta pe de fonctionnalisation d'un substrat en céramique oxyde poreuse par greffage chimique d'un ou plusieurs composés comprenant au moins un groupe susceptibl e d'être polymérisé avec un ou plusieurs précurseurs d'un polymère conducteur de l'électricité et au moins un groupe apte à se greffer chimiquement audit substrat ; une étape d'imprégnation dudit substrat ainsi fontionnalisé par u ne solution comprenant le ou lesdits précurseur(s) ; une étape de polymérisatio n du ou desdits précurseurs. Application de ces matériaux à des cellules photovoltaïques.

Method of olefin metathesis using a catalyst based on a spherical material comprising oxidised metal particles trapped in a mesostructured matrix

This invention concerns a method of olefin metathesis comprising the exposure of said olefins to a catalyst previously activated by heating to a temperature of between 100 and 1000°C in a non-reducing gas atmosphere, said catalyst comprising at least one inorganic material comprising at least two spherical elementary particles, each of said spherical elementary particles comprising oxidised metal particles at most 300 nm in size and containing at least one metal chosen from tungsten, molybdenum, rhenium, cobalt, tin, ruthenium, iron and titanium either taken alone or in a mixture, said oxidised metal particles being present in a mesostructured matrix on the basis of the oxide of at least one element Y chosen from silicon, aluminium, titanium, tungsten, zirconium, gallium, germanium, tin, antimony, lead, vanadium, iron, manganese, hafnium, niobium, tantalum, yttrium, cerium, gadolinium, europium and neodymium and the mixture of at least two of these elements, said mesostructured matrix having a pore size of between 1.5 and 50 nm and having amorphous walls of a thickness of between 1 and 30 nm and said spherical elementary particles having a maximum diameter of 200 μητι.

Use of a nanostructured material, as protective coating of metal surfaces

The invention concerns the use of a nanostructured material, as protective coating of metal surfaces. The invention concerns the use of a nanostructured material, as protective coating of metal surfaces, said nanostructured material comprising functionalized elementary nanoblocks and a polymer or organic/inorganic hybrid matrix. The invention also concerns a particular nanostructured material wherein the matrix is prepared from at least three silicon alkoxydes.

Crystallised material with hierarchised porosity and containing silicon

The invention relates to a material having a hierarchised porosity and made of at least two elementary spherical particles having a maximum diameter of 200 microns, at least one of said spherical particles including at least one matrix containing silicon oxide and having crystallised walls, wherein said material has a macroporous volume as measured by mercury porosimetry of between 0.05 and 1 ml/g, and a mesoporous volume as measured by nitrogen volumetric analysis of between 0.03 and 0.4 ml/g. The invention also relates to the preparation of this material and to the use thereof as an adsorbent or an acidic solid.

Process for preparing a spherical material having hierarchical porosity comprising metallic particles trapped in a mesostructured matrix

A process is described for preparing an inorganic material having hierarchical porosity in the fields of microporosity and mesoporosity, said material consisting of at least two elementary spherical particles having a maximum diameter of 200 microns, each of said spherical particles comprising metallic particles present within a mesostructured matrix based on silicon oxide, having microporous walls with a thickness between 1 and 60 nm, said process comprising the steps: a) the preparation of a solution containing zeolite nanocrystals of maximum nanometre size equal to 60 nm based on silicon and/or precursor elements of proto-zeolitic entities based on silicon, b) the mixing in solution of said metallic particles or of at least one metallic precursor of said metallic particles, of a surfactant and of said solution obtained according to a) such that the ratio of the volumes of inorganic material to organic material V inorganic /V organic is between 0.29 and 0.50, c) atomization, via aerosol, of said solution obtained in step b) in order to result in the formation of spherical droplets, d) the drying of said particles, g) the removal of said structuring agent and of said surfactant.

P-N SEMICONDUCTOR INORGANIC-ORGANIC HYBRID MATERIAL, METHOD FOR PRODUCING THE SAME, AND PHOTOVOLTAIC CELL COMPRISING SAID MATERIAL

Mesostructured material having a high aluminium content and consisting of spherical particles of specific size

A mesostructured material is described, which consists of at least two elementary spherical particles, each one of said particles comprising a mesostructured matrix based on aluminium oxide, said matrix having a pore diameter ranging between 1.5 and 30 nm, and an aluminium oxide content representing more than 46 wt. % of the mass of said matrix, which has amorphous walls of thickness ranging between 1 and 30 nm, said elementary spherical particles having a diameter D greater than 10 μm and less than or equal to 100 μm (10<D(μm)≦100). Said mesostructured matrix can also contain silicon oxide. Each spherical particle of the mesostructured material can also contain zeolite nanocrystals so as to form a mixed porosity material of both mesostructured and zeolitic nature. The preparation of said material is also described.

METHOD OF OLEFIN METATHESIS USING A CATALYST BASED ON HIERARCHISTIC POROSITY SPHERICAL MATERIAL COMPRISING OXIDE METALLIC PARTICLES PITCHED IN A MATRIX COMPRISING SILICON OXIDE

ORGANIC-INORGANIC HYBRID MATERIAL MESOSTRUCTURE

Organic-inorganic hybrid material comprising a mineral mesoporous phase and an organic phase, a membrane and fuel cell

Matériau hybride organique-inorganique comprenant deux phases : une première phase minérale comprenant un réseau mésoporeux structuré à porosité ouverte ; et une deuxième phase organique comprenant un polymère organique. Membrane et électrode comprenant ce matériau. Pile à combustible comprenant au moins une telle membrane et/ou au moins une telle électrode. Procédé de préparation dudit matériau hybride. Hybrid organic-inorganic material comprising two phases: a first mineral phase comprising a structured mesoporous network with open porosity; and a second organic phase comprising an organic polymer. Membrane and electrode comprising this material. Fuel cell comprising at least one such membrane and / or at least one such electrode. Process for the preparation of said hybrid material

METHOD OF MANUFACTURING A SPECIFIC HIGH SURFACE MATERIAL

La présente invention concerne un procédé de fabrication d'un matériau à haute surface spécifique comprenant une étape d'atomisation d'une composition liquide à base de résidus liquides issus d'une extraction chimique de mâchefers, un matériau à base de résidus de mâchefers caractérisé par une haute surface spécifique allant de 200 m2.g-1 à 900 m2.g-1 ainsi que par une taille de mésopores allant de 2 nm à 50 nm, et l'utilisation desdits matériaux pour l'absorption d'espèces polluantes. The present invention relates to a method of manufacturing a material with a high specific surface area comprising a step of atomizing a liquid composition based on liquid residues obtained from a chemical extraction of bottom ash, a material based on bottom ash residues characterized by a high specific surface area ranging from 200 m2.g-1 to 900 m2.g-1 as well as by a size of mesopores ranging from 2 nm to 50 nm, and the use of said materials for the absorption of polluting species.

COMPOUNDS, POROUS ORGANIC-INORGANIC HYBRID MATERIALS MESOSTRUCTURES AND SENSORS USEFUL FOR THE DETECTION OR DETERMINATION OF HALOGENATED GASEOUS COMPOUNDS

Colloidal and concentrated solution of monocrystal-particles from metallic oxides, processes for their preparation and their applications

Colloidal solutions concentrated in a non aqueous solvent of monocrystalline and aggregated particles having a hydrodynamic diameter from 2 to 10 nm, of oxides of metals M of the groups 1b to 7b,8 and lanthanides, complexed by a ligand susceptible of complexing said metals in the form of alcoxides particularly. Said solutions are obtained by complexing, by the ligand, the alcoxide of metal M in non aqueous solvent medium, hydrolysis and polycondensation by means of a strong acid and heating. Utilization of said solutions to the production of oxide films.

METHOD FOR DEPOSITING A LAYER ON THE SURFACE OF A SUBSTRATE

Colloidal and concentrated solution of monocrystal-particles from metallic oxides, proceses for their preparation

Method for preparing thin films, in particular by means of the sol-gel process

Method for preparing a thin film on at least one surface of a solid substrate, comprising the following successive steps: a) spraying on the surface: - a colloidal suspension comprising solid nanoparticles (or colloids) of an inorganic compound dispersed in a solvent, whereby a wet layer of the colloidal suspension is obtained on the surface; or - a suspension comprising an inorganic compound in polymeric form in a solvent, whereby a wet layer of the suspension of the inorganic compound in polymeric form is obtained on the surface; or - a solution or suspension of an organic polymer in a solvent, whereby a wet layer of the solution or suspension of the organic polymer is obtained on the surface; b) drying the wet layer; c) optionally, heat-treating the wet layer that has undergone the drying step, whereby the thin film is obtained; the method being characterised in that: - the solvent comprises at least 95% by weight of water, preferably 100% by weight of water, and in that - the drying is carried out in a static atmosphere, in particular in which there is no circulation or flow of air or any other gases on and around the surface; preferably, the drying is carried out in a hermetically sealed enclosure in which there is no circulation or flow of air or any other gases.

Conductive organic-inorganic hybrid material comprising a mesoporous phase, and membranes, electrodes and fuel cells comprised thereof

The invention relates to a conductive organic-inorganic hybrid material comprising a mineral phase in which walls define pores forming a structured mesoporous network with open porosity. The inventive material also comprises an oligomer or an organic polymer which is incorporated into the aforementioned walls and which is covalently linked to the mineral phase and, optionally, another phase inside the pores, comprising at least one surface active agent, whereby at least the mineral phase or the oligomer or the organic polymer have conductive functions. The invention also relates to a membrane and electrode comprising said material. The invention further relates to a fuel cell comprising at least one such membrane and/or at least one such electrode and to a method of preparing said material.

ADDITIONAL INJECTION CARBURETTOR AIR VARIABLE AND FUEL, CONTROLLED THROUGH DIFFERENTIAL PISTON FIXED TO SLIDING WITH DIRECT LINEAR MOVEMENT.

CARBURADOR DE INYECCION ADICIONAL VARIABLE DE AIRE Y COMBUSTIBLE, CONTROLADO POR EMBOLO DIFERENCIAL FIJADO A CORREDERA CON MOVIMIENTO LINEAL DIRECTO, QUE COMPRENDE ESENCIALMENTE UNA CARCASA CON DOS RAMALES CILINDRICOS PERPENDICULARES, HORIZONTAL Y VERTICAL, EN FORMA DE CRUCETA. EN EL RAMAL HORIZONTAL SE SITUA UN CONDUCTO DE ADMISION DE AIRE PRINCIPAL, UN CANAL DE INYECCION VARIABLE DE AIRE ADICIONAL Y UNA VALVULA MANUAL GIRATORIA DE REGULACION DEL ARRANQUE EN FRIO Y DEL RALENTI. EN EL RAMAL VERTICAL SE HALLA UNA VALVULA DE CORREDERA ASOCIADA A UN EMBOLO DIFERENCIAL MOVIL DE CONTROL INTEGRADO DE MEZCLA SUCCIONADA E INYECTADA, AIRE PRINCIPAL Y ADICIONAL INYECTADO, UN EMULSOR FIJO DE CONTROL DE FORMACION DE MEZCLA, CON UNAS CAMARAS CONJUNTAS, ANULAR VARIABLE DE FORMACION DE MEZCLA Y CILINDRICA VARIABLE DE FORMACION DE MEZCLA, Y UN CIRCUITO CONCENTRICO DE SUMINISTRO DE COMBUSTIBLE. ADDITIONAL VARIABLE AIR AND FUEL INJECTION CARBURETOR, CONTROLLED BY DIFFERENTIAL PISTON FIXED TO SLIDING WITH DIRECT LINEAR MOVEMENT, ESSENTIALLY COMPRISING A CASE WITH TWO PERPENDICULAR, HORIZONTAL AND VERTICAL CYLINDRICAL BRANCHES. IN THE HORIZONTAL BRANCH IS LOCATED A MAIN AIR INTAKE DUCT, A VARIABLE ADDITIONAL AIR INJECTION CHANNEL AND A ROTARY AND IDLE ROTATING MANUAL VALVE. IN THE VERTICAL BRANCH IS FOUND A SLIDING VALVE ASSOCIATED WITH A DIFFERENTIAL MOBILE PUMP OF INTEGRATED CONTROL OF SUCTIONED AND INJECTED MIXTURE, MAIN AIR AND ADDITIONAL INJECTED MACHINE, WITH A FIXED MULTIPLE FORMATION CONTROL CHAIN, WITH A SEARCHED WALL, OF MIXTURE AND CYLINDRICAL VARIABLE OF FORMATION OF MIXTURE, AND A CONCENTRIC CIRCUIT OF SUPPLY OF FUEL.

Organic-inorganic hybrid material containing a mineral mesoporous phase and an organic phase, a membrane and fuel cell

An organic-inorganic hybrid material comprising two phases: a first, mineral phase comprising a structured mesoporous network with open porosity; and a second, organic phase comprising an organic polymer, said organic phase being essentially not present inside the pores of the structured mesoporous network. Membrane and electrode comprising this material. Fuel cell comprising at least one such membrane and/or at least one such electrode. Process for preparing said hybrid material.