PROCESS FOR PRODUCTION OF FUEL CELL CATALYST, FUEL CELL CATALYST PRODUCED BY THE PROCESS, AND USE OF THE FUEL CELL CATALYST

Title:

PROCESS FOR PRODUCTION OF FUEL CELL CATALYST, FUEL CELL CATALYST PRODUCED BY THE PROCESS, AND USE OF THE FUEL CELL CATALYST

Document Type and Number:

WIPO Patent Application WO/2011/007790

Kind Code:

A1

Abstract:

Disclosed is a production process which can produce a fuel cell catalyst having excellent durability and high oxygen reduction capability. Specifically disclosed is a process for producing a fuel cell catalyst comprising a metal-containing oxycarbonitride, which involves a step of grinding a metal containing oxycarbonitride represented by a specific compositional formula by means of a ball mill, and which is characterized in that a ball in the ball mill has a diameter of 0.1 to 1.0 mm, the time required for the grinding by means of the ball mill falls within the range from 1 to 45 minutes, the rotating centrifugal acceleration to be employed for the grinding by means of the ball mill falls within the range from 2 to 20 G, the grinding by means of the ball mill is carried out in such a state that the metal-containing oxycarbonitride is mixed with a solvent containing no oxygen atom in the molecule, and the orbital centrifugal acceleration falls within the range from 5 to 50 G when the ball mill is a planetary ball mill.

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Inventors:

WAKIZAKA YASUAKI (JP)
MONDEN RYUJI (JP)
SHISHIKURA TOSHIKAZU (JP)
IMAI TAKUYA (JP)
OTA KENICHIRO (JP)

Application Number:

PCT/JP2010/061866

Publication Date:

January 20, 2011

Filing Date:

July 14, 2010

Export Citation:

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Assignee:

SHOWA DENKO KK (JP)
WAKIZAKA YASUAKI (JP)
MONDEN RYUJI (JP)
SHISHIKURA TOSHIKAZU (JP)
IMAI TAKUYA (JP)
OTA KENICHIRO (JP)

International Classes:

H01M4/88; B01J27/24; H01M4/90; H01M8/10

Domestic Patent References:

WO2009031383A1

2009-03-12

Foreign References:

JP2007257888A	2007-10-04
JPH08227716A	1996-09-03
JP2008108594A	2008-05-08
JP2010067509A	2010-03-25

Attorney, Agent or Firm:

SSINPAT PATENT FIRM (JP)
Patent business corporation SSINPAT (JP)

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