Title:
ELECTRODE CATALYST FOR FUEL CELL, FUEL CELL USING IT, AND ELECTRODE
Document Type and Number:
Japanese Patent JP3969658
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a high activity electrode catalyst which is formed by improving the catalytic ability of an expensive noble metal catalyst such as platinum by means of an inexpensive material for reducing noble catalyst usage, for a fuel cell, a fuel cell using the high activity electrode catalyst, a film electrode coupling body using the high activity electrode catalyst, and a gas diffusion electrode using the high activity electrode catalyst.
SOLUTION: This electrode catalyst for the fuel cell is principally constructed of hardly graphitizable carbon and carries noble metal particles in a carbon material having a turbulent layer structure in a part of its structure. Alternatively, an electrode catalyst formed by mixing the electrode catalyst for the fuel cell with a catalyst carrying the noble metal particles in carbon black, or a catalyst formed by mixing the electrode catalyst for the cell with carbon black is used.
Inventors:
Junichi Ozaki
Otani Asao
Hamada Yo
Yoshihiro Ikoma
Otani Asao
Hamada Yo
Yoshihiro Ikoma
Application Number:
JP2003185737A
Publication Date:
September 05, 2007
Filing Date:
June 27, 2003
Export Citation:
Assignee:
Junichi Ozaki
Otani Asao
Sanyo Electric Co., Ltd.
Otani Asao
Sanyo Electric Co., Ltd.
International Classes:
B01J23/42; H01M4/96; B01J23/745; H01M4/86; H01M4/90; H01M4/92; H01M8/02; H01M8/04; H01M8/10; H01M8/06; (IPC1-7): H01M4/86; B01J23/42; B01J23/745; H01M4/90; H01M4/92; H01M8/10
Domestic Patent References:
| JP10284089A |
Foreign References:
| WO2002015303A1 | ||||
| WO2001092151A1 |
Attorney, Agent or Firm:
Teruo Akimoto