Solid phase reduction preparation method for platinum, carbon catalyst of fuel cell

A fuel cell and catalyst technology, applied in catalyst activation/preparation, chemical instruments and methods, physical/chemical process catalysts, etc., can solve the problem that manual grinding is not suitable for large-scale production, the probability of collision is low, and the process is not easy to control, etc. problem, to achieve the effect of improving catalytic activity and anti-toxic performance, reducing waste generation, and making the preparation process simple and convenient
CN100531914CInactive Publication Date: 2009-08-26SOUTH CHINA UNIV OF TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SOUTH CHINA UNIV OF TECH
Publication Date
2009-08-26
Estimated Expiration
Not applicable · inactive patent

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Abstract

A solid-phase reduction method for preparing the Pt / C catalyst used for fuel battery includes such steps as adding metallic salt and complexing agent to solvent, ultrasonic dissolving, adding alkaline substance to regulate pH=8-11, adding C carrier, ultrasonic mixing, vacuum drying, grinding, immersing in the aqueous solution of reducer, vacuum drying, grinding, reducing reaction in N2, cooling in N2, water washing, and vacuum drying. Said catalyst may be Pt / C, Pt-Ru / C, Pt-Mo-Si / C, Pt-Ru-Mo-Si / C, Pt / CNT, Pt-Ru / CNT, Pt-Mo-Si / CNT, or Pt-Ru-Mo-Si / CNT.
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Description

technical field

[0001] The invention belongs to the preparation technology of proton exchange membrane fuel cell (PEMFC) and direct alcohol fuel cell (DAFC) catalysts, and particularly relates to a solid-phase reduction preparation method of platinum-carbon catalysts used in these two types of fuel cells. Background technique

[0002] A fuel cell is a device that directly converts the chemical energy of fuel into electrical energy efficiently and cleanly. Among them, low-temperature fuel cells, such as proton exchange membrane fuel cells (PEMFC) and direct alcohol fuel cells (DAFC), have the characteristics of low operating temperature, fast start-up, and high energy conversion efficiency. They are ideal substitutes for electric vehicles, field power stations, and portable power supplies in the future. Power supply is one of the priority types of fuel cell development. Catalyst materials, especially anode catalysts, are key materials for this type of fuel cell. However, th...

Claims

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