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An electrolytic water catalytic membrane material for preparing hydrogen for fuel cell and a preparation method thereof

A fuel cell and catalytic membrane technology, applied in fuel cells, battery electrodes, electrochemical generators, etc., can solve the problems of unsatisfactory catalytic hydrogen production rate, easy agglomeration of catalysts, low hydrogen production rate, etc. Conducive to uniform dispersion and the effect of promoting dispersion

Active Publication Date: 2019-01-08
河北世昌汽车部件股份有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of this invention is that the catalyst is easy to agglomerate, it is difficult to disperse evenly, and the speed of catalytic hydrogen production is not ideal
[0007] In summary, the prior art catalysts for hydrogen production by electrolysis of water have the disadvantages of high cost, difficulty in dispersion, and low hydrogen production rate. significance

Method used

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  • An electrolytic water catalytic membrane material for preparing hydrogen for fuel cell and a preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] (1) Grind polystyrene plastic into fine powder in a ball mill, mix it evenly with iron powder, nickel powder, and molybdenum disulfide powder, then mix it with supercritical carbon dioxide, add it to a high-pressure reactor, and micro-foam under strong stirring 3h, and then quickly release the pressure to prepare a mixed foaming powder; the speed of the ball mill is 90r / min, the ball-to-material ratio is 13:1, and the time is 13h; the pressure in the reactor is 9MPa, and the temperature is 33°C; The time is 16s; in the mixed foaming powder, 52 parts by weight of polystyrene micropowder, 7 parts by weight of iron powder, 7 parts by weight of nickel powder, and 34 parts by weight of molybdenum disulfide powder;

[0030] (2) Add the foamed powder prepared in step (1) into a closed container filled with a mixed gas of carbon dioxide, nitrogen and ammonia, further fluff the mixed powder under the action of air flow, and then transfer it to the spray gun; The flow rate of the...

Embodiment 2

[0033] (1) Grind polystyrene plastic into fine powder in a ball mill, mix it evenly with iron powder, nickel powder, and molybdenum disulfide powder, then mix it with supercritical carbon dioxide, add it to a high-pressure reactor, and micro-foam under strong stirring 2h, and then quickly release the pressure to prepare a mixed foaming powder; the speed of the ball mill is 70r / min, the ball-to-material ratio is 10:1, and the time is 15h; the pressure in the reactor is 8MPa, and the temperature is 30°C; The time is 10s; in the mixed foaming powder, 60 parts by weight of polystyrene micropowder, 5 parts by weight of iron powder, 5 parts by weight of nickel powder, and 30 parts by weight of molybdenum disulfide powder;

[0034] (2) Add the foamed powder prepared in step (1) into a closed container filled with a mixed gas of carbon dioxide, nitrogen and ammonia, further fluff the mixed powder under the action of air flow, and then transfer it to the spray gun; The gas flow velocit...

Embodiment 3

[0037] (1) Grind polystyrene plastic into fine powder in a ball mill, mix it evenly with iron powder, nickel powder, and molybdenum disulfide powder, then mix it with supercritical carbon dioxide, add it to a high-pressure reactor, and micro-foam under strong stirring 4h, and then quickly release the pressure to prepare a mixed foaming powder; the speed of the ball mill is 100r / min, the ball-to-material ratio is 15:1, and the time is 10h; the pressure in the reactor is 10MPa, and the temperature is 35°C; The time is 20s; in the mixed foaming powder, 44 parts by weight of polystyrene micropowder, 8 parts by weight of iron powder, 8 parts by weight of nickel powder, and 40 parts by weight of molybdenum disulfide powder;

[0038] (2) Add the foamed powder prepared in step (1) into a closed container filled with a mixed gas of carbon dioxide, nitrogen and ammonia, further fluff the mixed powder under the action of air flow, and then transfer it to the spray gun; The flow rate of the...

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Abstract

The invention belongs to the technical field of catalytic hydrogen production, and provides an electrolytic water catalytic membrane material for preparing hydrogen for fuel cells and a preparation method thereof. At first, that supercritical gas is use to treat the polystyrene micro-powder, The mixed powders of iron powder, nickel powder and molybdenum disulfide powder are initially foamed, thenfurther bulked under the action of carbon dioxide, nitrogen and ammonia, and then sprayed onto the surface of the heated perfluorosulfonic acid film to form a catalyst layer after cooling, so as to prepare an electrolytic water catalytic membrane material for preparing hydrogen for fuel cells. Compared with the traditional method, the catalytic membrane material prepared by the invention not onlyreduces the cost, but also has the advantages of uniform catalyst dispersion, high catalytic efficiency and high hydrogen production rate.

Description

technical field [0001] The invention belongs to the technical field of catalytic hydrogen production, and provides an electrolytic water catalytic membrane material and a preparation method for preparing hydrogen for fuel cells. Background technique [0002] Fuel cell is a chemical device that directly converts the chemical energy of fuel into electrical energy. It is the fourth power generation technology after hydropower, thermal power and atomic power. Because of its high power generation efficiency, no noise pollution, and emissions There are very few harmful gases. From the perspective of energy saving and ecological environment protection, fuel cells are the most promising power generation technology. Among them, hydrogen fuel cells use hydrogen as fuel, so hydrogen production technology has become an extremely important factor in the development of fuel cells. [0003] At present, the commonly used hydrogen production technologies include carbon reduction method, met...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/90H01M8/0656
CPCH01M4/9041H01M4/9075H01M8/0656Y02E60/50
Inventor 张玉英
Owner 河北世昌汽车部件股份有限公司