Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Inorganic carbon containing
Reexamination Certificate
2004-04-08
2008-12-23
Klemanski, Helene (Department: 1793)
Catalyst, solid sorbent, or support therefor: product or process
Catalyst or precursor therefor
Inorganic carbon containing
C502S182000, C502S185000, C429S047000, C429S047000, C429S047000, C429S047000, C429S047000, C977S888000, C420S463000, C420S465000, C420S466000
Reexamination Certificate
active
07468340
ABSTRACT:
A metal-supported porous carbon film wherein metal fine particles with a mean particle diameter of 0.7-20 nm are dispersed and supported on pore surface walls, fuel cell electrodes employing the metal-supported porous carbon film, a membrane-electrode assembly comprising the fuel cell electrodes bonded on both sides of a polymer electrolyte film, and a fuel cell comprising the fuel cell electrode as a constituent element. The support structure is such that metal fine particles having a controlled particle size are uniformly supported to allow effective utilization of the metal-based catalyst, and the fabrication steps are simple.
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Fujii Yuuichi
Matsuo Makoto
Ohya Shyusei
Takagi Jun
DLA Piper (LLP) US
Hailey Patricia L
Klemanski Helene
Ube Industries Ltd.
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