Electrocatalyst and fuel cell electrode using the same

Details Electrocatalyst and fuel cell electrode using the same Electrocatalyst and fuel cell electrode using the same

1982-12-20

1989-04-18

Hearn, Brian E.

Chemistry: electrical current producing apparatus, product, and

Having earth feature

252185, 252334, H01M 486, B01J 2340, B01J 2342

Patent

active

048226998

ABSTRACT:
An improved electrocatalyst comprises a supported platinum-gallium alloy catalyst of up to 50 atomic percent gallium, preferably of 10 to 30 atomic percent gallium, balance platinum. The platinum-gallium alloy is supported, preferably on carbon powder or the like, shows greater activity for oxygen reduction and better resistance to sintering than does a comparable platinum catalyst. A fuel cell electrode especially suited for use as a phosphoric acid fuel cell cathode comprises the supported platinum-gallium alloy electrocatalyst bound to an acid resistant support member.

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patent: 4469812 (1984-09-01), Sorrentino et al.
Chemical Abstracts: 79:81337.
Chemical Abstracts 82:142529.
Chemical Abstracts 90:157570.

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