Catalyst for use in fuel electrode of polymer solid...

Details Catalyst for use in fuel electrode of polymer solid... Catalyst for use in fuel electrode of polymer solid...

2006-02-21

2006-02-21

Lorengo, J. A. (Department: 1755)

Catalyst, solid sorbent, or support therefor: product or process

Catalyst or precursor therefor

Inorganic carbon containing

C502S101000, C502S182000, C502S325000, C429S047000

Reexamination Certificate

active

07001865

ABSTRACT:
The present invention is a catalyst for use in a fuel electrode of a polymer solid electrotype fuel cell which is formed by making a carbon powder support platinum and ruthenium thereon, and is characterized in that the loading ratio between platinum and ruthenium is from 1:2.5 to 1:4 (in molar ratio). It is preferable that the loading density of the catalyst is 40 to 70%. Additionally, it is preferable that a carbon powder having a specific surface area of 600 to 1,200 m2/g is used as the carrier supporting the catalyst particles.

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