Ternary fuel cell catalysts containing platinum, cobalt and chro

Details Ternary fuel cell catalysts containing platinum, cobalt and chro Ternary fuel cell catalysts containing platinum, cobalt and chro

1983-01-17

1984-05-08

Walton, Donald L.

Chemistry: electrical current producing apparatus, product, and

Having earth feature

502313, H01M 492

Patent

active

044475063

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.

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