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:
Feb. 05, 2013
Filed:
Jun. 19, 2008
Applicants:
Ian Roy Harkness, Oxford, GB;
Jonathan David Brereton Sharman, Reading, GB;
Edward Anthony Wright, Reading, GB;
Inventors:
Ian Roy Harkness, Oxford, GB;
Jonathan David Brereton Sharman, Reading, GB;
Edward Anthony Wright, Reading, GB;
Assignee:
Johnson Matthey Fuel Cells Limited, London, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 4/02 (2006.01); H01M 4/36 (2006.01); H01M 4/90 (2006.01); H01M 4/92 (2006.01); H01M 4/94 (2006.01); H01M 8/10 (2006.01); C22C 5/02 (2006.01); C22C 5/04 (2006.01); C22C 5/06 (2006.01);
U.S. Cl.
CPC ...
Abstract
A porous catalyst layer formed from discrete particles of unsupported metal, wherein at least 80%, suitably at least 90%, of the discrete particles have a mass of from 1 to 1000 zeptograms, and wherein the catalyst layer has a metal volume fraction of less than 30% and a metal loading of less than 0.09 mg/cmis disclosed. The catalyst layer is suitable for use in fuel cells and other electrochemical applications.