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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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Применить Всего найдено 11. Отображено 11.
27-08-2021 дата публикации

Silicon material microwave heating system

Номер: CN214070193U
Автор: LIAO JIEXIAN, ZHEN CHONGLI, ZHANG JIYAO, ZHAO XUEYAN, 廖洁娴, 甄崇礼, 张纪尧, 赵学燕
Принадлежит: SHANDONG AOLIAN NEW MAT CO LTD, SHANDONG AOLIAN NEW MATERIALS CO., LTD., 山东澳联新材料有限公司

The utility model provides a silicon material microwave heating system. The silicon material microwave heating system comprises a rack, and a heating buffer cavity, a microwave heating cavity, a wave suppression gate and a conveying roller way which are arranged on the rack, the heating buffer cavities are respectively arranged at the front and rear ends of the microwave heating cavity; the wave suppression gates are fixedly arranged at the front end and the rear end of the heating buffer cavity correspondingly. And the conveying roller way sequentially penetrates through the heating buffer cavity and the microwave heating cavity. Compared with the prior art, the system has the advantages that by reasonably arranging the heating buffer cavity, the microwave heating cavity and the wave suppression gate, continuous microwave heating of the silicon material can be completed, microwave leakage and silicon material oxidation are avoided, and the production efficiency is improved.

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Номер записи: 1
12-02-2015 дата публикации

NANO-DOPED VIB-GROUP METAL OXIDE PARTICLES OR DISPERSIONS THEREOF, PREPARATION METHOD AND USES OF SAME

Номер: WO2015018328A1
Автор: SHEN, Zhigang, YUN, Jimmy, Sung Lai, CHEN, Jianfeng, ZENG, Xiaofei
Принадлежит:

Provided is a method for preparing VIB-group metal oxide particles or dispersions thereof, the VIB-group metals being tungsten and/or molybdenum and the method comprising: 1) provision of VIB-group metal oxide precursors, a reducing agent and a supercritical fluid; 2) reacting said VIB-group metal oxide precursors and reducing agent in the supercritical fluid in a supercritical state so as to obtain VIB-group metal oxide particles or dispersions thereof. The described particles or their dispersions can be used in window glass for residential, architectural, automotive and shipboard purposes, providing exceptional blocking of near-infrared and ultraviolet radiation while retaining high transparency, and thus realizing control of sunlight and of thermal radiation.

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Номер записи: 2
07-04-2023 дата публикации

Preparation method of high-stability proton exchange membrane fuel cell catalyst slurry

Номер: CN115939420A
Автор: ZHANG JIYAO, ZHU BAOYUE, ZHAO HONG, ZHEN CHONGLI, ZHANG ZHIYUAN
Принадлежит:

The invention discloses a high-stability proton exchange membrane fuel cell catalyst slurry preparation method, which comprises: S1, taking a catalyst and water, mixing, pre-dispersing to form a pre-dispersion liquid I, and re-dispersing the pre-dispersion liquid I to obtain a dispersion liquid I; s2, mixing and pre-dispersing an alcoholic solution and a perfluorosulfonic acid polymer solution to form a pre-dispersion liquid II, and re-dispersing the pre-dispersion liquid II to obtain a dispersion liquid II; and S3, mixing the dispersion liquid I and the dispersion liquid II, and continuously dispersing to obtain the high-stability catalyst slurry. Compared with the prior art, large particles of the catalyst can be greatly reduced, so that the slurry is more stable, the perfluorosulfonic acid polymer can be more uniformly dispersed on the catalyst layer, and the performance of the fuel cell is improved. And the method has the advantages of simplicity in operation, suitability for large-scale ...

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Номер записи: 3
03-10-2013 дата публикации

NANOMETRIC TIN-CONTAINING METAL OXIDE PARTICLE AND DISPERSION, AND PREPARATION METHOD AND APPLICATION THEREOF

Номер: WO2013143456A1
Автор: SHEN, Zhigang, SOH, Wei Kian, ZHANG, Jiyao, WANG, Aici, ZHONG, Jie, YUN, Sung Lai Jimmy, SHER, Hock Sing, CHEN, Jianfeng
Принадлежит:

The present invention relates to a nanometric tin-containing metal oxide particle, having a narrow particle size distribution defined by a dispersion degree smaller than 7 and a steepness ratio smaller than 3. The present invention further relates to a dispersion, a coating, a film, glasswork and similar containing said particle. In addition, the present invention further provides a method for preparing the particle and the dispersion. The nanometric tin-containing metal oxide particle and the dispersion thereof of the present invention can be used in window glass for housing, buildings, automobiles, ships and similar, and ensures high transparency while providing excellent blocking of infrared light for control of sunlight and thermal radiation properties.

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Номер записи: 4
16-05-2023 дата публикации

Ruthenium-nickel loaded metal oxide catalyst, and preparation method and application thereof

Номер: CN116116428A
Автор: GAO LIDONG, ZHEN CHONGLI
Принадлежит:

The invention provides a ruthenium-nickel-loaded metal oxide catalyst as well as a preparation method and application thereof. Active components of the metal oxide catalyst are Ru and Ni, a carrier is a metal oxide, the metal oxide comprises Al2O3, BaO and CeO2, and the mass ratio of the three metal oxides is Al2O3: BaO: CeO2 = (3-5): (1-3): (1-2). The active metals of the metal oxide catalyst adopt ruthenium and nickel, and the nickel is distributed on the surface of the carrier in a smaller crystal grain form, so that the adverse effect on the active component Ru caused by non-uniform distribution of the nickel is avoided. When the metal oxide catalyst disclosed by the invention is used for catalyzing ammonia synthesis reaction, the ammonia gas conversion rate as high as 99% can be realized at the catalytic temperature of lower 600 DEG C.

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Номер записи: 5
28-07-2023 дата публикации

Method for recovering performance of hydrogen-rich fuel cell stack

Номер: CN116505050A
Автор: BAI ZEXU, ZHANG JIYAO, ZHAO HONG, ZHEN CHONGLI
Принадлежит:

The invention discloses a method for recovering the performance of a hydrogen-rich fuel cell stack, and belongs to the technical field of fuel cells. The method comprises the following steps: (1) carrying out nitrogen purging on a hydrogen-rich fuel cell stack, then introducing pure hydrogen into the anode side of the hydrogen-rich fuel cell stack, carrying out a reduction reaction, and after the reaction is completed, cutting off hydrogen supply; (2) introducing air into the cathode side of the hydrogen-rich fuel cell stack, carrying out an oxidation reaction, and cutting off air supply after the reaction is completed; and (3) repeating the step (1) and the step (2) for multiple times to complete recovery of the performance of the hydrogen-rich fuel cell stack. By adopting the treatment method provided by the invention, the performance of the hydrogen-rich fuel cell stack used for a long time can be recovered, and the initial performance is improved by more than 10%. The treatment method ...

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Номер записи: 6
14-10-2010 дата публикации

MICROCHANNEL DOUBLE PIPE DEVICE AND USAGE THEREOF

Номер: WO2010115377A1
Автор: SHEN, Zhigang, YUN, Jimmy Sunglai, CHEN, Jianfeng, CHU, Guangwen
Принадлежит:

A microchannel double pipe device comprises a channel for inner nozzle (4), a channel for outer nozzle (5) and a mechanical probe (8). The channel for outer nozzle (5) concentrically surrounds the channel for inner nozzle (4), and the channel for inner nozzle (4) concentrically surrounds the mechanical probe (8). Constricted at the outlet of the channel for inner nozzle (4), the channel for inner nozzle (4) extends to form an inner nozzle core (9). Constricted at the outlet of the channel for outer nozzle (5), the channel for outer nozzle (5) extends to form an outer nozzle core (10). The outer nozzle core (10) essentially concentrically surrounds the inner nozzle core (9), and the outlets of the inner nozzle core (9) and the outer nozzle core (10) are at the same level essentially. The mechanical probe (8) is configured to intermittently empty the inner nozzle core (9). The device can be used for microcosmic mixing and reaction, especially suitable for continuous preparation of inorganic ...

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Номер записи: 7
28-07-2023 дата публикации

Preparation method of CeO2 modified double perovskite catalyst

Номер: CN116493017A
Автор: ZHOU LILONG, YIN PENG, LI ZHENGJIE, CAO XUEPU, ZHANG YONGCHAO, HAN JILONG, ZHEN CHONGLI
Принадлежит:

The invention belongs to the technical field of catalysts, and particularly relates to a preparation method of a CeO2 modified double perovskite catalyst. The cerium salt solution and the coordination agent solution are mixed to obtain a mixed solution, acid is added into the mixed solution for a reaction, and Ce-MOF is obtained; after the Ce-MOF solution and the ethylenediamine tetraacetic acid disodium salt solution are mixed, an alkaline solution is added to adjust the pH value, and EDTA-Ce-MOF is obtained; dissolving EDTA-Ce-MOF in water, then adding the double perovskite catalyst containing defect sites, then adding an acidic solution to adjust the pH value, and roasting to obtain the CeO2 modified double perovskite catalyst. The catalyst prepared by the invention has the characteristics of stable chemical properties, reusability, high catalytic activity, environmental friendliness and no pollution to the atmosphere.

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Номер записи: 8
25-08-2023 дата публикации

Graphite bipolar plate, hydrogen fuel cell stack and assembly method thereof

Номер: CN116646549A
Автор: ZHANG JIYAO, WANG AIJUN, YUN SUNG LAI, ZHU LEI, LIU SHAOLIN
Принадлежит:

The invention discloses a graphite bipolar plate, a hydrogen fuel cell stack and an assembly method of the hydrogen fuel cell stack. The graphite bipolar plate comprises a plate body, a workflow field area is arranged in the middle of the plate body, flow field distribution areas are arranged at the two ends of the workflow field area, and the flow field distribution areas are communicated with the workflow field area; one end part of the plate body is sequentially provided with an anode gas inlet, a cooling liquid outlet and a cathode gas outlet, and the other end part of the plate body is sequentially provided with a cathode gas inlet, a cooling liquid inlet and an anode gas outlet; a flow guide strip group for uniformly dispersing gas is arranged in the flow field distribution area; and a variable flow channel is arranged in the workflow field area. The flow guide strip groups which are reasonably arranged are arranged in the bipolar plate gas flow field distribution area, so that gas ...

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Номер записи: 9
07-04-2023 дата публикации

Orthohydrogen and parahydrogen conversion catalyst suitable for wide-range low-temperature conditions and preparation method

Номер: CN115920919A
Автор: GAO LIDONG, ZHEN CHONGLI
Принадлежит:

The invention relates to an ortho-parahydrogen conversion catalyst suitable for a wide-range low-temperature condition and a preparation method thereof. The catalyst is a fiber magnetic catalyst FeMnOx which is orderly doped with Fe atoms; a substrate material of the catalyst is alpha-MnO2, the alpha-MnO2 belongs to a tetragonal crystal system, cell parameters are as follows: a crystal structure is composed of 2 * 2 edge-shared octahedral chains, XRD characteristic diffraction peaks are 2theta = 12.8 degrees, 18.1 degrees, 25.7 degrees, 37.5 degrees, 49.8 degrees and 56.3 degrees, the specific surface area of the alpha-MnO2 is 100-150m < 2 >/g measured by a BET test method, and a transmission electron microscope shows that the microstructure of the alpha-MnO2 is a fibrous structure with the diameter of 2-5nm and the length of 100-500nm; when the catalyst is used for an ortho-parahydrogen conversion reaction, the ortho-parahydrogen conversion efficiency is 95% or above, and the service life ...

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Номер записи: 10
23-06-2023 дата публикации

Preparation method of Pt/C catalyst and Pt/C catalyst

Номер: CN116314859A
Автор: CAI LEILEI, ZHEN CHONGLI, GAO LIDONG
Принадлежит:

The invention provides a preparation method of a Pt/C catalyst and the Pt/C catalyst. According to the method, the Pt/C catalyst is efficiently synthesized by adopting an ethylene glycol modification method, a carbon carrier and a platinum salt precursor are dispersed in a mixed solution of water and ethylene glycol in a certain proportion, and then the dispersed mixed solution is subjected to a heating reflux reaction, so that platinum nanoparticles are uniformly deposited on the carbon carrier. The method is simple in preparation process and good in stability, the yield is 95% or above, the particle size of prepared catalyst particles ranges from 2 nm to 3 nm, the electrochemical active area is large, and dispersion is uniform.

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Номер записи: 11