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:
Jun. 28, 2016

Filed:

Apr. 05, 2012
Applicants:

Kunchan Lee, Tokyo, JP;

Chunfu Yu, Tokyo, JP;

Ryuji Monden, Tokyo, JP;

Masaki Horikita, Tokyo, JP;

Takashi Sato, Tokyo, JP;

Inventors:

Kunchan Lee, Tokyo, JP;

Chunfu Yu, Tokyo, JP;

Ryuji Monden, Tokyo, JP;

Masaki Horikita, Tokyo, JP;

Takashi Sato, Tokyo, JP;

Assignee:

SHOWA DENKO K.K., Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 4/90 (2006.01); H01M 4/88 (2006.01); H01M 8/10 (2016.01); B01J 37/08 (2006.01); B01J 27/24 (2006.01); B01J 35/00 (2006.01);
U.S. Cl.
CPC ...
H01M 4/90 (2013.01); H01M 4/88 (2013.01); H01M 4/9041 (2013.01); H01M 8/1009 (2013.01); B01J 27/24 (2013.01); B01J 35/0033 (2013.01); B01J 37/086 (2013.01); Y02E 60/523 (2013.01); Y02P 70/56 (2015.11);
Abstract

In a direct-liquid fuel cell supplied directly with a liquid fuel, a process for producing an electrode catalyst for a direct-liquid fuel cell is provided which is capable of suppressing decrease in cathode potential caused by liquid fuel crossover and providing an inexpensive and high-performance electrode catalyst for a direct-liquid fuel cell. The process for producing an electrode catalyst for a direct-liquid fuel cell includes Step A of mixing at least a transition metal-containing compound with a nitrogen-containing organic compound to obtain a catalyst precursor composition, and Step C of heat-treating the catalyst precursor composition at a temperature of from 500 to 1100° C. to obtain an electrode catalyst, wherein part or entirety of the transition metal-containing compound includes, as a transition metal element, at least one transition metal element M1 selected from Group IV and Group V elements of the periodic table.


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