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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
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Применить Всего найдено 14. Отображено 14.
15-05-2013 дата публикации

Preparation method of supercapacitor electrode material NiCo2O4

Номер: CN103107025A
Автор: Hu Junqing, Zou Rujia, Xu Kaibing, Li Wenyao, Liu Xijian, Wang Teng
Принадлежит:

The invention relates to a preparation method of supercapacitor electrode material NiCo2O4. The preparation method comprises: (1) hexahydrated nickel nitrate Ni (NO3) 2 6H2O, hexahydrated cobalt nitrate Co (NO3) 2 6H2O and ureophil in a molar ratio of 1:2:1-10 are added to a mixed solution of ethanol and water, stirred and dissolved so as to obtain a mixed solution; and (2) a hydrothermal reaction is conducted to the mixed solution, the reaction temperature is from 90 DEG C and 200 DEG C, the reaction time is from 3h to 48 h, the mixed solution is cooled to the room temperature so as to obtain the NiCo2O4 by centrifuging, and then the NiCo2O4 is washed, dried and calcined so that the material NiCo2O4 is obtained. The materials obtained through the preparation method are high in specific capacitance and good in electrochemical stability and are excellent supercapacitor electrode materials. The preparation method has the advantages of being simple, green and environment-friendly and low in ...

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Номер записи: 1
18-12-2013 дата публикации

Method for preparing Mn0.12Co0.94Ni0.51O2 ultrathin nanosheet super capacitor material

Номер: CN103451699A
Автор: Hu Junqing, Li Gao, Li Wenyao, Xu Kaibing, Zou Rujia, Sun Jianqing, Wang Teng
Принадлежит:

The invention relates to a method for preparing a Mn0.12Co0.94Ni0.51O2 ultrathin nanosheet super capacitor material. The method comprises the following steps of mixing a manganese nitrate solution, a cobalt nitrate solution and a nickel nitrate solution, wherein the volume ratio of the manganese nitrate solution, the cobalt nitrate solution and the nickel nitrate solution is 1:1:1, adding an additive, then mixing uniformly, thus obtaining an electrolyte; under the condition of three electrode system electrochemical deposition technology, electrically depositing the electrolyte for 20-40 minutes by a potentiostatic method, after the reaction, sending the sample into a vacuum drying box for drying, in the following steps, annealing for 2-3 hours in a tubular furnace, thus obtaining the Mn0.12Co0.94Ni0.51O2 ultrathin nanosheet super capacitor material. The method is simple, economic and easy to operate, and the prepared Mn0.12Co0.94Ni0.51O2 ultrathin nanosheet has the potential of being used ...

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Номер записи: 2
16-01-2013 дата публикации

Preparation method of super capacitor electrode material (nickel oxide)

Номер: CN102874884A
Автор: Hu Junqing, Xu Kaibing, Zou Rujia, Xue Yafang, Li Wenyao, Liu Xijian, Wang Teng, Li Bo
Принадлежит:

The invention relates to a preparation method of a super capacitor electrode material (nickel oxide). The preparation method comprises the steps as follows: nickel nitrate hexahydrate (Ni(NO3)2.6H2O) and polyvinylpyrrolidone (PVP) are dissolved in methanol and water and stirred to prepare a mixed solution; the mixed solution is poured into a polytetrafluoroethylene hydrothermal reaction kettle to react for 3-24 hours under the hydrothermal condition of 150-200 DEG C, and then the reaction kettle is cooled to the room temperature; a product obtained through centrifugation is washed and dried; a dried sample is calcined; and the obtained sample is the super capacitor electrode material. The invention has the advantages that the method is simple and environment-friendly and is low in cost and suitable for mass production; and the prepared porous floriform electrode material (nickel oxide) not only has higher specific capacitance, but also has favorable electrochemical stability, and is a superior ...

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Номер записи: 3
31-07-2013 дата публикации

Preparation method of copper germanate quantum dots

Номер: CN103224250A
Автор: Hu Junqing, Li Bo, Zou Rujia, Dong Xu
Принадлежит:

The invention relates to a preparation method of copper germanate quantum dots. The preparation method comprises the following steps: adding a surfactant, cyclonexane and a naGeO3 cosurfactant into a CuCl2 aqueous solution; stirring to form a transparent clear microemulsion; slowly adding a naGeO3 aqueous solution into the microemulsion; heating to 60-80 DEG C; carrying out backflow for 6-8h; after the reaction is completed, adding a deemulsifier to carry out deemulsification; and carrying out centrifugal washing on the obtained product so as to obtain CuGeO3 quantum dots. According to the method disclosed by the invention, cupric sulfide nanocrystallines are prepared from common precursors serving as raw materials by using simple experimental facilities; and the reaction has the advantages that raw materials are easily available and low in price, the operation process is simple and convenient, reaction conditions are mild, and the reaction has no special demands on devices are.

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Номер записи: 4
15-05-2013 дата публикации

Preparation method of supercapacitor electrode materials including nicklous hydroxide and graphene compound

Номер: CN103107022A
Автор: Hu Junqing, Xu Kaibing, Liu Qian, Li Wenyao, Zou Rujia, Li Bo
Принадлежит:

The invention relates to a preparation method of supercapacitor electrode materials including nicklous hydroxide and graphene compound. The preparation method includes: (1) mixing six hydration nickel nitrate (Ni(NO->[3])2 6H->[2]O ) and solvent, stirring and obtaining mixed solution; (2) adding polyethylene oxide-polypropylene oxide-polyethylene oxide triblock copolymer aqueous solution into the mixed solution, adding graphene aqueous solution into the mixed solution, heating the mixed solution until backflow, adding ammonia water dip by dip, enabling the mixed solution to react for 2 to 24 hours, centrifuging, washing, drying and obtaining the nicklous hydroxide and the graphene compound. Ni (OH) ->[2] and the graphene composite electrode material prepared through the preparation method of supercapacitor electrode materials including nicklous hydroxide and graphene compound are in a plate-shaped accumulated structure, specific surface area and conductivity are improved. The preparation ...

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Номер записи: 5
16-01-2013 дата публикации

Preparation method of porous Co3O4 nanosheet

Номер: CN102874882A
Автор: Hu Junqing, Li Wenyao, Zou Rujia, Li Gao, Xu Kaibing, Sun Jianqing, Liu Qian
Принадлежит:

The invention relates to a preparation method of a porous Co3O4 nanosheet. The preparation method comprises the steps as follows: 1, foamed nickel is subjected to ultrasonic cleaning in a hydrochloric acid solution so as to remove nickel oxide on the surface and then is washed and dried; 2, a DMSO (dimethylsulfoxide) solution is dropwise added in a Co(NO3)2 solution and is stirred uniformly; and 3, prepared nickel is immersed in a solution prepared in the step 2, and electrochemical deposit is conducted on the surface of the nickel to obtain a Co(OH)2 nanosheet, and then the Co(OH)2 nanosheet is cleaned, dried and calcined to obtain a porous Co3O4 super capacitor material. The preparation method provided by the invention has the advantages of simple process, economy and easiness in operation; and the prepared porous Co3O4 nanosheet has an ultrathin structure, excellent electrochemical properties and wide application prospects in the aspects of super capacitor materials, lithium ion battery ...

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Номер записи: 6
17-04-2013 дата публикации

Preparation method of nano copper sulphide taking L-cysteine as ligand

Номер: CN103043704A
Автор: Hu Junqing, Li Bo, Zou Rujia, Li Wenyao, Xu Kaibing, An Lei, Wang Teng
Принадлежит:

The invention relates to a preparation method of nano copper sulphide taking L-cysteine as a ligand. The method comprises the steps that L-cysteine and copper nitrate octahydrate are added to water, and mixed; a pH value of a solution is adjusted; a sodium thiosulfate solution is added and heated to 70-100 DEG C; reaction is conducted for 0.5-2h; centrifugation and washing are conducted; and then nano copper sulphide is obtained. The method takes a common precursor as a raw material and uses a simple experimental device to prepare copper sulphide nanocrystalline, can be used for cancer photothermal ablation treatment, and has the advantages that the method is environment-friendly, requires a raw material low in price and simple and convenient in operation process, and the required raw material is easy to obtain.

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Номер записи: 7
30-01-2013 дата публикации

Method for preparing composite electrode material of super capacitor

Номер: CN102903531A
Автор: Hu Junqing, Jiang Lin, Zou Rujia, Liu Qian, Li Wenyao, Xue Yafang, Peng Yanling, Hu Xianghua, Wu Fan
Принадлежит:

The invention relates to a method for preparing a composite electrode material of a super capacitor. The method comprises the following steps of: (1) ultrasonically dispersing graphite, sodium nitrate and concentrated sulfuric acid into an ice bath, adding potassium hypermanganate, magnetically stirring, adding deionized water, magnetically stirring to make a mixture uniform, re-adding the deionized water, stirring at constant temperature, reacting in a water bath, cooling, adding hydrogen peroxide, centrifugally washing, freezing and drying in vacuum, and thus obtaining graphite oxide; (2) dispersing the graphite oxide, nickel salt and cobalt salt into a solvent, and performing solvothermal reaction to synthesize a Ni(OH)2/CoO/rGO composite material; and (3) uniformly mixing a Ni(OH)2/CoO reduction graphene oxide composite material, carbon black and polyvinylidene fluoride, stirring at room temperature, uniformly coating on the surface of nickel foam, drying in vacuum, and thus obtaining ...

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Номер записи: 8
15-01-2014 дата публикации

Copper selenide/mesoporous silica core-shell nanoparticles and preparation method and application thereof

Номер: CN103505730A
Автор: Hu Junqing, Liu Xijian, Zou Rujia, Wang Teng, An Lei, Wang Qian, Xu Kaibing, Song Guosheng
Принадлежит:

The invention relates to copper selenide/mesoporous silica core-shell nanoparticles and a preparation method and application thereof. The copper selenide/mesoporous silica core-shell nanoparticles are Cu2<-x>Se/mSiO2-PEG core-shell nanoparticles, where x is 0-1, and m is mesoporous. The preparation method comprises the following steps: preparing a Cu2<-x>Se nanocrystalline, transferring the hydrophobic Cu2<-x>Se nanocrystalline into an aqueous phase through CTAB (Cetyltrimethyl Ammonium Bromide), and growing a mesoporous silica layer on the surface of the CTAB through a sol-gel method by taking the CTAB as a template; and finally, modifying and coupling polyethylene glycol to the surface, and obtaining the copper selenide/mesoporous silica core-shell nanoparticles. The invention also discloses application in preparation of diagnosis and treatment preparations. The obtained Cu2<-x>Se/mSiO2-PEG has extremely low cytotoxicity, so that cancer cells can be effectively killed through light and ...

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Номер записи: 9
07-08-2013 дата публикации

Method for preparing copper sulphide/graphene nano-composite material

Номер: CN103232058A
Автор: Hu Junqing, He Guanjie, Zou Rujia, Li Bo, Jiang Lin, Wu Fan
Принадлежит:

The invention relates to a method for preparing a copper sulphide/graphene nano-composite material. The method comprises the following steps of: adding oxidized graphene to dimethyl sulfoxide, and performing ultrasonic processing to obtain a mixed solution having the concentration of 0.22 g/L; adding copper acetate to the mixed solution, stirring until the copper acetate is dissolved and then pouring the solution to a solvothermal reaction kettle for reacting for 6-8 hours under the solvothermal condition of 160-180 DEG C, then centrifuging and washing, and finally, performing vacuum drying. The method provided by the invention is capable of preparing the copper sulphide/graphene nano-composite material by taking common chemicals as the raw materials and using a simple solvothermal reaction experimental device; and the method is moderate in reaction condition and simple in operation process; the desired raw materials are cheap and easy to gain; and the method has no special requirement ...

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Номер записи: 10
30-01-2013 дата публикации

Method for preparing super capacitor material with Co3O4-Au-MnO2 three-dimensional hierarchical heterogeneous nanosheet array

Номер: CN102903534A
Автор: Hu Junqing, Li Wenyao, Zou Rujia, Li Gao, Xu Kaibing, Sun Yangang, Wang Teng
Принадлежит:

The invention relates to a method for preparing a super capacitor material with a Co3O4-Au-MnO2 three-dimensional hierarchical heterogeneous nanosheet array. The method comprises the following steps of; (1) preparing a Co3O4 nanosheet array of a precursor; (2) evaporating the surface of the Co3O4 nanosheet array by using a plasma sputtering method, and thus obtaining an Au-film-covered Co3O4 nanosheet array; and (3) electrochemically depositing the Au-film-covered Co3O4 nanosheet array under the condition of potential of 0.9 V, coating MnO2 on the surface of the Au-film-covered Co3O4 nanosheet array, cleaning, drying and roasting a reaction product, and thus obtaining the super capacitor material. The method is easy to operate, and complicated equipment is eliminated. A Co3O4-Au-MnO2 nanosheet array which is prepared by using the method is uniformly distributed, has a three-dimensional hierarchical hetero-structure, and is high in electrochemical performance and wide in application prospect ...

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Номер записи: 11
30-01-2013 дата публикации

Method for preparing porous hybridization NiO/Co3O4 electrode material of super capacitor

Номер: CN102903533A
Автор: Hu Junqing, Xu Kaibing, Zou Rujia, Xue Yafang, Li Wenyao, Liu Xijian, Wang Teng, Li Bo
Принадлежит:

The invention relates to a method for preparing a porous hybridization NiO/Co3O4 electrode material of a super capacitor. The method comprises the following steps of: (1) dissolving nickel nitrate hexahydrate Ni(NO3)2.6H2O, cobalt nitrate hexahydrate Co(NO3)2.6H2O and polyvinylpyrrolidone (PVP) into a mixed solution of methanol and water, stirring, and thus obtaining a mixed solution; (2) reacting for 3 to 24 hours under the hydrothermal condition of 150 DEG C to 200 DEG C, and then cooling to room temperature; and (3) centrifuging, washing and drying a product, putting a dried sample into a muffle furnace, roasting the dried sample, and thus obtaining the porous hybridization NiO/Co3O4 electrode material. The method is simple, environment-friendly, low in cost and applicable to large-scale production. The electrode material of the super capacitor, which is prepared by using the method, is high in specific capacitance and high in electrochemical stability.

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Номер записи: 12
24-07-2013 дата публикации

Preparation method for carbon-coated nickel oxide NiO/C as supercapacitor electrode material

Номер: CN103219169A
Автор: Hu Junqing, Xu Kaibing, Zou Rujia, Li Wenyao, An Lei
Принадлежит:

The invention relates to a preparation method for carbon-coated nickel oxide NiO/C as a supercapacitor electrode material, comprising the steps that (1) nickel acetate Ni (CH3COO)2.4H2O, urea and polyvinylpyrrolidone are dissolved in absolute ethyl alcohol and water and stirred, so that a mixed solution is obtained; (2) the mixed solution is subjected to hydrothermal reaction, and after the reaction is finished, the mixed solution is cooled, centrifuged, rinsed, dried and calcined, so the NiO material is obtained; (3) the NiO is dissolved in a glucose solution and stirred, to obtain a mixed solution, the mixed solution is subjected to hydrothermal reaction, and after the reaction is finished, the mixed solution is cooled, centrifuged, rinsed, dried and calcined, so that the carbon-coated nickel oxide NiO/C is obtained. The NiO/C electrode material prepared by the method disclosed by the invention is in porous structure and has high specific surface area, meanwhile the overall conductivity ...

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Номер записи: 13
25-12-2013 дата публикации

Method for preparing manganese sulfide nanosheets employing quantum dot seed process

Номер: CN103466711A
Автор: Hu Junqing, Zhang Yuxin, Zou Rujia, Li Bo
Принадлежит:

The invention relates to a method for preparing manganese sulfide nanosheets employing a quantum dot seed process. The method comprises the following steps: (1) adding manganese chloride tetrahydrate to oleylamine to obtain a solution containing quantum dots; (2) dissolving sublimed sulfur into the oleylamine, so as to obtain a sulfur source solution; (3) heating the solution containing quantum dots to 170-240 DEG C, and then adding the sulfur source solution, adding ethanol as a precipitator after reaction is ended, centrifugally washing to obtain MnS nanosheets. The method disclosed by the invention is simple and convenient in operation process, available in required raw material for preparation, low in price, mild in reaction condition, and free of special demands on equipment. By adopting the method, common precursors can be taken as the raw materials; the MnS nanosheets with regular shapes can be prepared by a simple experimental device.

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Номер записи: 14