Alkaline fuel cell cathode carbon catalyst and preparation method thereof

A fuel cell cathode and carbon-based catalyst technology, which is applied in the direction of battery electrodes, chemical instruments and methods, physical/chemical process catalysts, etc., can solve the problem that the catalytic activity is lower than that of noble metals and their alloy catalysts, and the preparation process cannot meet large-scale production. Problems such as poor tolerance and long-term running stability, etc., achieve the effect of low price, easy purchase and preparation, and good tolerance
CN103296292AInactive Publication Date: 2013-09-11WUHAN UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
WUHAN UNIV
Publication Date
2013-09-11
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a high-performance alkaline fuel cell cathode carbon catalyst and a preparation method of the high-performance alkaline fuel cell cathode carbon catalyst. The catalyst disclosed by the invention is a composite carbon material in a core-shell nanostructure, which is prepared by adulterating two elements of Fe and N, using conductive carbon black with a high-ratio surface as an inner core and coating a phthalocyanine iron shell around the inner core. The preparation method comprises the following steps of: weighing and mixing phthalocyanine iron solid powder and the conductive carbon black with the high-ratio surface according to a certain mass ratio, and then preparing to obtain a C@FePc carbon non-noble metal catalyst in the core-shell nanostructure by adopting a simple mechanical ball milling method. The catalyst disclosed by the invention has high-performance oxygen reduction reaction (ORR) catalytic activity, excellent CH3OH / CO tolerance and good stability, the cost of raw materials used in the preparation process is low, the operation is simple and convenient, and the catalyst is easy for large-scale commercialized production.
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Description

[0001] Technical field

[0002] The present invention is a fuel cell, involving an alkaline fuel cell catalytic catalyst and its preparation method. Background technique

[0003] Alkaline fuel cells have the characteristics of high energy, high power, and pollution -free, and are considered one of the most important power devices for solving future energy problems.In the existing alkaline fuel battery, catalysts, especially cathode oxygen restore catalysts, have become one of the main bottlenecks for curbing its commercialization due to factors such as expensive costs, low catalytic efficiency, and poor stability.Based on various factors, precious metals (such as PT, PD, AU, AG) and its alloy catalysts are used for alkaline fuel cell cathode oxygen reduction reactions (ORR).However, the limited precious metal resources in nature have led to the high cost of alkaline fuel batteries.Therefore, the low cost, high catalytic efficiency, and excellent stability are not (low) precious m...

Claims

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