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:
Nov. 24, 2009
Filed:
May. 01, 2006
Ion C. Halalay, Grosse Pointe, MI (US);
Belabbes Merzougui, Warren, MI (US);
Michael K. Carpenter, Troy, MI (US);
Swathy Swathirajan, West Bloomfield, MI (US);
Gregory C. Garabedian, Warren, MI (US);
Andrew M. Mance, Royal Oak, MI (US);
Mei Cai, Bloomfield Hills, MI (US);
Ion C. Halalay, Grosse Pointe, MI (US);
Belabbes Merzougui, Warren, MI (US);
Michael K. Carpenter, Troy, MI (US);
Swathy Swathirajan, West Bloomfield, MI (US);
Gregory C. Garabedian, Warren, MI (US);
Andrew M. Mance, Royal Oak, MI (US);
Mei Cai, Bloomfield Hills, MI (US);
GM Global Technology Operations, Inc., Detroit, MI (US);
Abstract
The durability of a fuel cell having a polymer electrolyte membrane with an anode on one surface and an oxygen-reducing cathode on the other surface is improved by substituting electrically conductive titanium carbide or titanium nitride particles for carbon particles as oxygen-reducing and hydrogen-oxidizing catalyst supports. For example nanosize platinum particles deposited on nanosize titanium carbide or titanium nitride support particles provide good oxygen reduction capability and are corrosion resistant in an acid environment. It is preferred that the catalyst-on-titanium carbide (nitride) particles be mixed with non-catalyst-bearing carbon in the electrode material for improved electrode performance.