Method of making metal-polymer composite catalysts

Details Method of making metal-polymer composite catalysts Method of making metal-polymer composite catalysts

2006-10-02

2009-06-23

Yuan, Dah-Wei D (Department: 1795)

Chemistry: electrical current producing apparatus, product, and

Having earth feature

C429S006000, C502S101000, C502S152000, C502S182000, C502S185000

Reexamination Certificate

active

07550223

ABSTRACT:
A metal-polymer-carbon composite catalyst for use as a cathode electrocatalyst in fuel cells. The catalyst includes a heteroatomic polymer; a transition metal linked to the heteroatomic polymer by one of nitrogen, sulfur, and phosphorus, and a recast ionomer dispersed throughout the heteroatomic polymer-carbon composite. The method includes forming a heteroatomic polymer-carbon composite and loading the transition metal onto the composite. The invention also provides a method of making a membrane electrode assembly for a fuel cell that includes the metal-polymer-carbon composite catalyst.

REFERENCES:
patent: 2002/0132157 (2002-09-01), Finkelshtain et al.
patent: 2003/0175578 (2003-09-01), Kim
patent: 2005-066592 (2005-03-01), None
IPDL machine translation of JP 2005066592.

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