Chemistry: electrical current producing apparatus – product – and – Having earth feature
Reexamination Certificate
2009-03-09
2009-10-27
Ruthkosky, Mark (Department: 1795)
Chemistry: electrical current producing apparatus, product, and
Having earth feature
C429S047000
Reexamination Certificate
active
07608358
ABSTRACT:
An anode catalyst layer for a fuel cell is presented having first and second catalyst compositions and a hydrophobic binder. The first catalyst composition includes a noble metal, other than Ru, on a corrosion-resistant support material; the second catalyst composition contains a single-phase solid solution of a metal oxide containing Ru. The through-plane concentration of ionomer in the catalyst layer decreases as a function of distance from the membrane interface. Gas diffusion electrodes, catalyst-coated membranes, MEAs and fuel cells having the foregoing anode catalyst layer are also described.
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Ruthkosky Mark
Seed IP Law Group PLLC
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