Title:
固体高分子形燃料電池用の触媒及びその製造方法
Document Type and Number:
Japanese Patent JP6994023
Kind Code:
B2
Abstract:
The present invention relates to a catalyst for solid polymer fuel cells in which catalyst particles including platinum are supported on a carbon powder carrier. The invention provides a catalyst for solid polymer fuel cells in which the ratio of zerovalent platinum to platinum present on the surfaces of the catalyst particles is 80% or more and 100% or less. In the platinum catalyst, excellent durability is exhibited in an environment of operating a solid polymer fuel cell, and the amount of platinum eluted at the time of immersing the catalyst in a predetermined sulfuric acid solution is lower as compared to conventional platinum catalysts. The invention provides a catalyst for solid polymer fuel cells excellent in both initial activity and durability.
Inventors:
Koichi Matsutani
Application Number:
JP2019513622A
Publication Date:
February 04, 2022
Filing Date:
April 16, 2018
Export Citation:
Assignee:
Tanaka Kikinzoku Kogyo Co., Ltd.
International Classes:
H01M4/92; B01J23/42; B01J37/02; B01J37/03; B01J37/04; B01J37/08; B01J37/12; B01J37/16; B01J37/18; H01M4/86; H01M4/88
Domestic Patent References:
| JP2009500789A | ||||
| JP2003257439A | ||||
| JP2003024798A | ||||
| JP2002511639A | ||||
| JP2012124001A |
Foreign References:
| WO2006088194A1 |
Attorney, Agent or Firm:
Patent business corporation Tanaka, Okazaki and Associates
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