Title:
ELECTRODE CATALYST, MANUFACTURING METHOD THEREFOR, AND FUEL CELL
Document Type and Number:
WIPO Patent Application WO/2022/181261
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide an electrode catalyst, a manufacturing method therefor, and a fuel cell all of which enable suppression of deterioration over time in catalyst action. The electrode catalyst contains: a mesoporous carbon carrier having pores; and catalyst metal particles supported in at least a portion of the pores. The ratio r/R of a mean particle diameter r of the catalyst metal particles to a most frequent pore diameter R of the pores is 0.01-0.6. The mean particle diameter r of the catalyst metal particles is 6 nm or less. The most frequent pore diameter R of the pores is preferably 2-50 nm.
Inventors:
SUGAHARA KOSEI (JP)
FUJINO TAKAAKI (JP)
OSAKO TAKAO (JP)
KITABATAKE TAKUYA (JP)
WATANABE HIROMU (JP)
FUJINO TAKAAKI (JP)
OSAKO TAKAO (JP)
KITABATAKE TAKUYA (JP)
WATANABE HIROMU (JP)
Application Number:
PCT/JP2022/003895
Publication Date:
September 01, 2022
Filing Date:
February 01, 2022
Export Citation:
Assignee:
MITSUI MINING & SMELTING CO LTD (JP)
International Classes:
B01J35/10; B01J23/42; B01J37/16; H01M4/88; H01M4/92; H01M4/96; H01M8/10
Domestic Patent References:
| WO2008093731A1 | 2008-08-07 | |||
| WO2014185498A1 | 2014-11-20 |
Foreign References:
| US20200075964A1 | 2020-03-05 | |||
| US20200127299A1 | 2020-04-23 |
Other References:
BOEHM, H.P., ADVANCES IN CATALYSIS, vol. 16, 1966, pages 179
Attorney, Agent or Firm:
SHOWA INTERNATIONAL PATENT FIRM (JP)
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