Method for making ternary fuel cell catalysts containing platinu

Details Method for making ternary fuel cell catalysts containing platinu Method for making ternary fuel cell catalysts containing platinu

1984-01-30

1986-09-23

Shine, W. J.

Catalyst, solid sorbent, or support therefor: product or process

Catalyst or precursor therefor

Inorganic carbon containing

502184, B01J 2118, B01J 2364, B01J 2386

Patent

active

046135820

ABSTRACT:
An improved ternary noble metal-containing, alloy catalyst which has a catalytic activity for the electrochemical reduction of oxygen greater than two and one-half times that of the supported unalloyed noble metal alone. In addition, a disclosure of the method of preparing said catalyst is by intimately contacting two metallic elements with a supported noble metal, then heating this material to form the ternary alloy catalyst. This catalyst has particular utility for the electrochemical reduction of oxygen which makes it particularly useful as a cathode in acid fuel cells. The preferred embodiment of this catalyst is finely divided platinum alloyed with chromium and cobalt supported on an electrically conductive carbon-black support material.

REFERENCES:
patent: 3291753 (1966-12-01), Thompson
patent: 3380934 (1968-04-01), Batzold
patent: 3432362 (1969-03-01), Kroll
patent: 4316944 (1982-02-01), Landsman et al.
patent: 4358475 (1982-11-01), Brown et al.

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