The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 24, 2006
Filed:
Jul. 29, 2003
Applicant:
Stephen a Campbell, Maple Ridge, CA;
Inventor:
Stephen A Campbell, Maple Ridge, CA;
Assignee:
Ballard Power Systems Inc., Burnaby, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01J 27/04 (2006.01); B01J 27/43 (2006.01); B01J 27/47 (2006.01); B01J 27/51 (2006.01); B01J 27/57 (2006.01);
U.S. Cl.
CPC ...
Abstract
Non-noble metal transition metal catalysts can replace platinum in the oxidation reduction reaction (ORR) used in electrochemical fuel cells. A RuSe catalyst is prepared with comparable catalytic activity to platinum. An environmentally friendly aqueous synthetic pathway to this catalyst is also presented. Using the same aqueous methodology, ORR catalysts can be prepared where Ru is replaced by Mo, Fe, Co, Cr, Ni and/or W. Similarly Se can be replaced by S.