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:
Apr. 29, 2014
Filed:
Sep. 14, 2011
Mei Cai, Bloomfield Hills, MI (US);
Xueliang Sun, London, CA;
Gaixia Zhang, London, CA;
Shuhui Sun, London, CA;
Ruying LI, London, CA;
Mei Cai, Bloomfield Hills, MI (US);
Xueliang Sun, London, CA;
Gaixia Zhang, London, CA;
Shuhui Sun, London, CA;
Ruying Li, London, CA;
GM Global Technology Operations LLC, Detroit, MI (US);
The University of Western Ontario, London, Ontario, CA;
Abstract
Platinum particles have been formed as porous, hollow tubular dendrites by using silver dendrite particles in a galvanic replacement reaction conducted in an aqueous solution of a platinum compound. The dendritic platinum particles have been found useful as catalysts and particularly useful as a hydrogen-oxidation electrocatalyst and/or an oxygen-reduction catalyst in a polymer electrolyte membrane fuel cell.