High loading supported carbon catalyst, method of preparing...

Details High loading supported carbon catalyst, method of preparing... High loading supported carbon catalyst, method of preparing...

2006-11-07

2006-11-07

Sample, David (Department: 1755)

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

Catalyst or precursor therefor

Inorganic carbon containing

C502S182000, C429S047000, C429S047000, C429S047000, C429S047000, C429S047000, C075S245000, C075S255000

Reexamination Certificate

active

07132385

ABSTRACT:
The present invention is related to a high loading supported carbon catalyst having Pt or a Pt alloy supported into an electrically conductive carbon support. Specifically, in the carbon supported catalyst, a loading of the supported Pt or Pt alloy is in the range of about 50% to about 60% by weight, an average particle size is about 1 nm to about 3 nm, and a total specific surface area of the carbon supported catalyst is greater than about 200 m2/g. The carbon supported catalyst may improve the performance of a fuel cell because the catalytic metal particles have a small size and a high degree of dispersion. Also, a carbon supported catalyst having very fine catalyst particles uniformly dispersed may be prepared even at a high loading may be prepared.

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