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:
Aug. 27, 2013
Filed:
May. 11, 2011
Applicants:
Gang Wu, Los Alamos, NM (US);
Piotr Zelenay, Los Alamos, NM (US);
Inventors:
Gang Wu, Los Alamos, NM (US);
Piotr Zelenay, Los Alamos, NM (US);
Assignee:
Los Alamos National Security, LLC, Los Alamos, NM (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 4/88 (2006.01); H01M 4/90 (2006.01); B82Y 30/00 (2011.01); B82Y 40/00 (2011.01); B01J 21/18 (2006.01); B01J 23/74 (2006.01); H01M 8/10 (2006.01);
U.S. Cl.
CPC ...
Abstract
A process for preparing a durable non-precious metal oxygen reduction electrocatalyst involves heat treatment of a ball-milled mixture of polyaniline and multiwalled carbon nanotubes in the presence of a Fe species. The catalyst is more durable than catalysts that use carbon black supports. Performance degradation was minimal or absent after 500 hours of operation at constant cell voltage of 0.40 V.