Catalytic membranes for fuel cells

Chemistry: electrical current producing apparatus – product – and – Fuel cell – subcombination thereof – or method of making or...

Reexamination Certificate

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C429S472000, C429S474000, C429S479000, C429S480000, C429S482000, C429S484000, C429S485000, C429S487000, C429S498000, C429S523000, C429S527000, C502S180000, C502S182000, C502S185000, C977S742000, C977S743000, C977S744000, C977S748000, C977S749000, C977S750000, C977S752000, C977S810000

Reexamination Certificate

active

07927748

ABSTRACT:
A fuel cell of the present invention comprises a cathode and an anode, one or both of the anode and the cathode including a catalyst comprising a bundle of longitudinally aligned graphitic carbon nanotubes including a catalytically active transition metal incorporated longitudinally and atomically distributed throughout the graphitic carbon walls of said nanotubes. The nanotubes also include nitrogen atoms and/or ions chemically bonded to the graphitic carbon and to the transition metal. Preferably, the transition metal comprises at least one metal selected from the group consisting of Fe, Co, Ni, Mn, and Cr.

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