Title:
METHOD FOR MANUFACTURING ELECTRODE CATALYST FOR FUEL CELL
Document Type and Number:
WIPO Patent Application WO/2007/114525
Kind Code:
A1
Abstract:
This invention provides a method for manufacturing an electrode catalyst for
a fuel cell which has a high initial voltage, good durability and particularly
no significant lowering in voltage upon the application of high potential. The
method for manufacturing an electrode catalyst for a fuel cell comprises a dispersion
step of dispersing an electroconductive carrier in a solution, a supporting
step of adding dropwise a platinum salt solution, a base metal salt solution,
and an iridium salt solution to the dispersion liquid and supporting each of the
metal salts as a hydroxide on an electroconductive carrier under alkaline conditions,
and an alloying step of heat reducing a metal hydroxide supported electroconductive
carrier under a reducing atmosphere to conduct alloying.
Inventors:
TAKAHASHI HIROAKI (JP)
OHASHI SOZABURO (JP)
KAWAMURA TETSUO (JP)
HORIUCHI YOUSUKE (JP)
TABATA TOSHIHARU (JP)
TERADA TOMOAKI (JP)
NAGATA TAKAHIRO (JP)
ENOMOTO SUSUMU (JP)
OHASHI SOZABURO (JP)
KAWAMURA TETSUO (JP)
HORIUCHI YOUSUKE (JP)
TABATA TOSHIHARU (JP)
TERADA TOMOAKI (JP)
NAGATA TAKAHIRO (JP)
ENOMOTO SUSUMU (JP)
Application Number:
PCT/JP2007/057729
Publication Date:
October 11, 2007
Filing Date:
April 02, 2007
Export Citation:
Assignee:
TOYOTA MOTOR CO LTD (JP)
CATALER CORP (JP)
TAKAHASHI HIROAKI (JP)
OHASHI SOZABURO (JP)
KAWAMURA TETSUO (JP)
HORIUCHI YOUSUKE (JP)
TABATA TOSHIHARU (JP)
TERADA TOMOAKI (JP)
NAGATA TAKAHIRO (JP)
ENOMOTO SUSUMU (JP)
CATALER CORP (JP)
TAKAHASHI HIROAKI (JP)
OHASHI SOZABURO (JP)
KAWAMURA TETSUO (JP)
HORIUCHI YOUSUKE (JP)
TABATA TOSHIHARU (JP)
TERADA TOMOAKI (JP)
NAGATA TAKAHIRO (JP)
ENOMOTO SUSUMU (JP)
International Classes:
H01M4/88; B01J27/20; B01J37/03; B01J37/06; B01J37/18; H01M4/90; H01M4/92; H01M8/10
Foreign References:
| JP2002200427A | 2002-07-16 | |||
| US5013618A | 1991-05-07 | |||
| JP2005317373A | 2005-11-10 | |||
| JPH1092441A | 1998-04-10 | |||
| JP2006127979A | 2006-05-18 | |||
| JP2006032287A | 2006-02-02 | |||
| JP2003024798A | 2003-01-28 | |||
| JP2003045442A | 2003-02-14 | |||
| US5521020A | 1996-05-28 | |||
| JP2002248350A | 2002-09-03 | |||
| JP2003024798A | 2003-01-28 | |||
| JP2928586B2 | 1999-08-03 | |||
| JP3353518B2 | 2002-12-03 | |||
| JPH10162839A | 1998-06-19 |
Other References:
PUHAKKA E. ET AL.: "COMPARISON OF MODELING AND EXPERIMENTAL RESULTS OF MODIFIED Pt-BASED PEMFC CATHODE-CATALYSTS", ELECTROCHEMICAL SOCIETY PROCEEDINGS, vol. 2002-31, 2002, pages 74 - 88, XP008056637
Y. LIANG ET AL.: "Preparation and characterization of carbon-supported PtRuIr catalyst with excellent CO-tolerant performance for proton-exchange membrane fuel cells", JOURNAL OF CATALYSIS, vol. 238, 2006, pages 468 - 476
See also references of EP 2006943A4
Y. LIANG ET AL.: "Preparation and characterization of carbon-supported PtRuIr catalyst with excellent CO-tolerant performance for proton-exchange membrane fuel cells", JOURNAL OF CATALYSIS, vol. 238, 2006, pages 468 - 476
See also references of EP 2006943A4
Attorney, Agent or Firm:
OHKAWA, Hiroshi (Nakamura-kuNagoya-sh, Aichi 02, JP)
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