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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.:

US 8080347 B1

PDFFull Text
Expired
Date of Patent:
Dec. 20, 2011

Filed:

Mar. 17, 2008

Catalyst for polymer solid electrolyte fuel cell, membrane electrode assembly, and fuel cell

Applicants:

Wu Mei, Yokohama, JP;

Taishi Fukazawa, Fuchu, JP;

Takahiro Sato, Kawasaki, JP;

Itsuko Mizutani, Yokohama, JP;

Yoshihiko Nakano, Yokohama, JP;

Inventors:

Wu Mei, Yokohama, JP;

Taishi Fukazawa, Fuchu, JP;

Takahiro Sato, Kawasaki, JP;

Itsuko Mizutani, Yokohama, JP;

Yoshihiko Nakano, Yokohama, JP;

Assignee:

Kabushiki Kaisha Toshiba, Tokyo, JP;

Attorney:

Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.

Primary Examiner:

Patrick Ryan

Assistant Examiner:

Julian Anthony

Int. Cl.
CPC ...
H01M 4/02 (2006.01); H01M 4/36 (2006.01); H01M 4/90 (2006.01); H01M 4/94 (2006.01); H01M 4/62 (2006.01); B01J 21/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

There is provided a catalyst for a fuel cell, which simultaneously realizes excellent catalytic activity and catalytic stability. The catalyst for a fuel cell comprises a fine particle of a metal represented by formula:PtRuSiT1wherein T1 represents at least one element selected from the group consisting of nickel (Ni), tungsten (W), vanadium (V), and molybdenum (Mo); x=30 to 90 atomic %; y=0 to 50 atomic %; z=0.5 to 20 atomic %; and u=0.5 to 40 atomic %, or comprises a fine particle of a metal represented by formula:PtRuSiT2wherein T2 represents at least one element selected from the group consisting of hafnium (Hf), tin (Sn), zirconium (Zr), niobium (Nb), titanium (Ti), tantalum (Ta), chromium (Cr), and aluminum (Al); x=30 to 90 atomic %; y=0 to 50 atomic %; z=0.5 to 20 atomic %; and u=0.5 to 40 atomic %.

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Mei, Wu. (2011). Catalyst for polymer solid electrolyte fuel cell, membrane electrode assembly, and fuel cell (U.S. Patent No. 8080347). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8080347

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