Method of depositing a catalyst on a fuel cell electrode

Details Method of depositing a catalyst on a fuel cell electrode Method of depositing a catalyst on a fuel cell electrode

1997-09-11

2000-12-12

Talbot, Brian K.

Coating processes

Electrical product produced

Fuel cell part

427566, 429 40, 429 41, 296235, B05D 512

Patent

active

061595330

ABSTRACT:
Fuel cell electrodes comprising a minimal load of catalyst having maximum catalytic activity and a method of forming such fuel cell electrodes. The method comprises vaporizing a catalyst, preferably platinum, in a vacuum to form a catalyst vapor. A catalytically effective amount of the catalyst vapor is deposited onto a carbon catalyst support on the fuel cell electrode. The electrode preferably is carbon cloth. The method reduces the amount of catalyst needed for a high performance fuel cell electrode to about 0.3 mg/cm.sup.2 or less.

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