Coating processes – Electrical product produced – Fuel cell part
Reexamination Certificate
2006-04-20
2010-06-22
Chen, Bret (Department: 1792)
Coating processes
Electrical product produced
Fuel cell part
C427S248100, C427S376600, C204S192100
Reexamination Certificate
active
07740902
ABSTRACT:
Methods are provided for making oxygen-reducing catalyst layers, which include simultaneous or sequential stops of physical vapor depositing an oxygen-reducing catalytic material onto a substrate, the catalytic material comprising a transition metal that is substantially free of platinum; and thermally treating the catalytic material. At least one of the physical vapor deposition and the thermal treatment is performed in a processing environment comprising a nitrogen-containing gas.
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Atanasoski Radoslav
O'Brien Dennis P.
O'Neill David G.
Schmoeckel Alison K.
Vernstrom George D.
3M Innovative Properties Company
Chen Bret
Dahl Philip Y.
Morrison Brian
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