NON-PRECIOUS FUEL CELL CATALYSTS COMPRISING POLYANILINE

摘要

A method of producing a catalyst suitable for use in a membrane electrode assembly involves providing a mixture comprising a polyaniline precursor and a catalyst support; adding to said mixture an oxidant and a compound comprising a transition metal; agitating said mixture sufficiently to result in polyaniline polymerization; drying the mixture; heating the dried mixture in an inert atmosphere at a temperature of from about 400° C. to about 1000° C.; leaching the mixture with an acid solution; heating the resulting mixture in an inert atmosphere at a temperature of from about 400° C. to about 1000° C. The second heating improves the performance of the catalyst.

主权项

1. A method of producing a catalyst suitable for use in a membrane electrode assembly, comprising:
a) providing a mixture comprising a polyaniline precursor and a catalyst support; b) adding to said mixture an oxidant and a compound comprising a transition metal; c) agitating said mixture sufficiently to result in polyaniline polymerization; d) drying the mixture; e) heating the dried mixture in an inert atmosphere at a temperature of from about 400° C. to about 1000° C.; and thereafter f) leaching the mixture with an acid solution; and thereafter g) heating the mixture in an inert atmosphere at a temperature of from about 400° C. to about 1000° C.