Platinum-iron electrocatalyst and fuel cell electrode using...

Details Platinum-iron electrocatalyst and fuel cell electrode using... Platinum-iron electrocatalyst and fuel cell electrode using...

H - Electricity

01

M

319/20, 252/82

H01M 4/38 (2006.01) B01J 23/89 (2006.01) H01M 4/92 (2006.01) H01M 4/86 (2006.01)

Patent

CA 1221403

APPLICATION OF C.Z. WAN FOR LETTERS PATENT OF THE UNITED STATES PLATINUM-IRON ELECTROCATALYST AND FUEL CELL ELECTRODE USING THE SAME ABSTRACT OF THE DISCLOSURE An improved electrocatalyst comprises a supported platinum-iron alloy catalyst of 17 to 42 atomic percent iron, the balance being platinum, and the alloy having a Pt3Fe superlattice structure. The platinum-iron 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-iron alloy electrocatalyst bound to an acid resistant support member.

456487

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