Platinum alloy electrocatalyst

Details Platinum alloy electrocatalyst Platinum alloy electrocatalyst

1990-03-09

1991-06-18

Walton, Donald L.

Chemistry: electrical current producing apparatus, product, and

Having earth feature

502326, H01M 492, B01J 2340

Patent

active

050249053

ABSTRACT:
Disclosed are a platinum alloy electrocatalyst having high activity and a long life comprising an electrically conductive carrier and dispersed in, and deposited on it, a platinum-iron-cobalt-copper quaternary ordered alloy composed of 40 to 70 atomic % of platinum, 9 to 27 atomic % of iron, 9 to 27 atomic % of cobalt and 9 to 27 atomic % of copper, and an electrode for an acid electrolyte fuel cell which electrode comprises the platinum alloy electrocatalyst, a water-repellent binder and a conductive and acid-resistant supporting member, the electrocatalyst and the water-repellent binder being bonded to.

REFERENCES:
patent: 4447506 (1984-05-01), Luczak et al.
patent: 4711829 (1987-12-01), Luczak et al.
patent: 4716087 (1987-12-01), Ito et al.
patent: 4794054 (1988-12-01), Ito et al.
patent: 4806515 (1989-02-01), Luczak et al.

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