Methanol-tolerant cathode catalyst composite for direct...

Details Methanol-tolerant cathode catalyst composite for direct... Methanol-tolerant cathode catalyst composite for direct...

2006-03-21

2006-03-21

Bell, Bruce F. (Department: 1746)

Chemistry: electrical current producing apparatus, product, and

Having magnetic field feature

C429S006000, C429S006000, C429S047000, C429S047000, C429S047000, C502S101000

Reexamination Certificate

active

07014931

ABSTRACT:
A direct methanol fuel cell (DMFC) having a methanol fuel supply, oxidant supply, and its membrane electrode assembly (MEA) formed of an anode electrode and a cathode electrode with a membrane therebetween, a methanol oxidation catalyst adjacent the anode electrode and the membrane, an oxidant reduction catalyst adjacent the cathode electrode and the membrane, comprises an oxidant reduction catalyst layer of a platinum-chromium alloy so that oxidation at the cathode of methanol that crosses from the anode through the membrane to the cathode is reduced with a concomitant increase of net electrical potential at the cathode electrode.

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patent: 5876867 (1999-03-01), Itoh et al.
patent: 6066410 (2000-05-01), Auer et al.
patent: 6300000 (2001-10-01), Cavalca et al.
patent: 6635369 (2003-10-01), Uribe et al.
patent: 6861387 (2005-03-01), Ruth et al.

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