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.

Date of Patent:
Jan. 17, 2017

Filed:

Dec. 17, 2009
Applicants:

Chuan-jian Zhong, Endwell, NY (US);

Brigid Wanjala, Johnson City, NY (US);

Jin Luo, Vestal, NY (US);

Peter N. Njoki, Binghamton, NY (US);

Rameshwori Loukrakpam, Binghamton, NY (US);

Minhua Shao, Manchester, CT (US);

Lesia V. Protsailo, Bolton, CT (US);

Tetsuo Kawamura, Aichi, JP;

Inventors:

Chuan-Jian Zhong, Endwell, NY (US);

Brigid Wanjala, Johnson City, NY (US);

Jin Luo, Vestal, NY (US);

Peter N. Njoki, Binghamton, NY (US);

Rameshwori Loukrakpam, Binghamton, NY (US);

Minhua Shao, Manchester, CT (US);

Lesia V. Protsailo, Bolton, CT (US);

Tetsuo Kawamura, Aichi, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01J 23/40 (2006.01); H01M 4/92 (2006.01); H01M 4/90 (2006.01); B01J 21/18 (2006.01);
U.S. Cl.
CPC ...
H01M 4/921 (2013.01); H01M 4/9083 (2013.01); H01M 4/926 (2013.01); B01J 21/18 (2013.01); B01J 21/185 (2013.01); Y02E 60/50 (2013.01);
Abstract

A supported catalyst is prepared by a process that includes establishing shell-removal conditions for a supported catalyst intermediate that includes capped nanoparticles of a catalyst material dispersed on a carbon support. The capped nanoparticles each include a platinum alloy core capped in an organic shell. The shell-removal conditions include an elevated temperature and an inert gas atmosphere that is substantially free of oxygen. The organic shell is removed from the platinum alloy core under the shell-removal conditions to limit thermal decomposition of the carbon support and thereby limit agglomeration of the catalyst material such that the supported catalyst includes an electrochemical surface area of at least 30 m/g.


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