Application of an electrocatalyst in the anode of proton exchange membrane fuel cell

A technology of proton exchange membrane and electrocatalyst, which is applied in battery electrodes, physical/chemical process catalysts, metal/metal oxide/metal hydroxide catalysts, etc., can solve the problems of commercial application gap and achieve fast reduction, Excellent hydrogen oxidation activity, narrow distribution effect
CN102299346AActive Publication Date: 2011-12-28DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
Publication Date
2011-12-28

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Abstract

The application of an electro-catalyst in an anode of a proton exchange membrane fuel cell is the application of the electro-catalyst in the anode of the proton exchange membrane fuel cell. The catalyst has the following characteristics: taking PdxPty alloy and the added one or more types of IIIB, IVB, VB, VIB, VIIB, VIII and IB group as active ingredient, wherein the content of the active ingredients accounts for 5%-70% of the weight of the catalyst, the rest is conductive carrier, the content of the Pd metal accounts for 50%-95% of the total weight of the metal. In the preparation method, a liquid phase reduction method is adopted, the main active ingredient Pd metal precursor is dissolved in a mixture solution of water and alcohol, ammonia water to be used as a complexing agent is added, and then other active ingredient precursors and conductive carriers are added; and the active ingredients can be reduced by a strong reducing agent and then the electro-catalyst is loaded on the conductive conductor.
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Description

technical field

[0001] The invention relates to a proton exchange membrane fuel cell, in particular to the application of a PdPt-based proton exchange membrane fuel cell anode catalyst with high activity and excellent CO resistance performance. Background technique

[0002] A fuel cell is a power generating device that directly converts chemical energy into electrical energy. Because it is not limited by the Carnot cycle, the fuel cell has the characteristics of high energy conversion efficiency, and the fuel cell also has the characteristics of environmental friendliness such as no noise, low emission or even zero emission, so the research of fuel cell has attracted more and more attention. . In particular, proton exchange membrane fuel cells, in addition to the general advantages of fuel cells, have become ideal candidates for portable power sources and power sources due to their advantages of low operating temperature, fast start-up, high specific power density, and smal...

Claims

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