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Title:
METHOD OF MANUFACTURING FUEL CELL ELECTRODE CATALYST, AND FUEL CELL ELECTRODE CATALYST
Document Type and Number:
Japanese Patent JP2010102982
Kind Code:
A
Abstract:

To achieve further improvement in catalytic activity of a noble metal-transition metal alloy catalyst that is synthesized by reduction reaction by dissolving a noble metal component and a transition-metal component in a solvent, adding amine and an anti-flocculant such as a carboxylic acid to the solution, and also adding a conductive carrier and an organic solvent after reduction.

A method of manufacturing a fuel cell electrode catalyst made of a noble metal-transition metal alloy carried on a conductive carrier has the following configuration. The fuel cell electrode catalyst is formed by dissolving a noble metal component and a transition-metal component in a solvent and adding a conductive carrier after reduction so as to allow a catalyst component to be carried on the conductive carrier. In the manufacturing method, a weakly acidic functional group containing compound and a weakly basic functional group containing compound are added to a reaction system. Partially sulfonated hydrocarbons having a carbon number of 5-10 are used as the weakly acidic functional group containing compound.


Inventors:
SUGAWARA MASAYUKI
HASE KOHEI
MIZUTANI NOBUAKI
Application Number:
JP2008273943A
Publication Date:
May 06, 2010
Filing Date:
October 24, 2008
Export Citation:
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Assignee:
TOYOTA MOTOR CORP
International Classes:
H01M4/88; B01J23/89; B01J37/16; H01M4/90; H01M8/10
Domestic Patent References:
JP2001093531A2001-04-06
Attorney, Agent or Firm:
Yusuke Hiraki
Ishii Teiji
Satoshi Fujita
Tsuruhiko Sekiguchi