Patent Number: 7,132,385

Title: High loading supported carbon catalyst, method of preparing the same, catalyst electrode including the same, and fuel cell including the catalyst electrode

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 m.sup.2/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.

Inventors: Pak; Chan-ho (Seoul, KR)

Assignee: Samsung SDI Co., Ltd.

International Classification: B01J 21/18 (20060101); B01J 23/00 (20060101); B22F 1/00 (20060101); B22F 9/00 (20060101); H01M 4/86 (20060101)

Expiration Date: 2019-11-07 0:00:00