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:
Sep. 01, 2009
Filed:
May. 21, 2004
Applicants:
Daniel Cossement, Montreal, CA;
Richard Chahine, Trois-Rivieres, CA;
Tapan K. Bose, Trois-Rivieres, CA;
Inventors:
Daniel Cossement, Montreal, CA;
Richard Chahine, Trois-Rivieres, CA;
Tapan K. Bose, Trois-Rivieres, CA;
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
D01F 9/12 (2006.01); C01B 31/34 (2006.01);
U.S. Cl.
CPC ...
Abstract
Carbon nanostructures for use as catalyst supports in hydrogen fuel cells are produced by mixing a carbon material with at least one transition metal such as iron and cobalt, subjecting the mixture thus produced to mechanical grinding, e.g. ball milling in a hydrogen atmosphere for a time sufficient for hydrogen to be absorbed into the mixture, and heating the mixture in an inert atmosphere at a temperature sufficient to crystallize at least one of the carbon material and carbide nanocrystals.