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 JP5823285
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a catalyst for a solid polymer fuel cell, excellent in initial activities (initial power generation characteristics) and also good in durability, and a method for producing the catalyst for a solid polymer fuel cell.SOLUTION: The present invention relates to a catalyst for a solid polymer fuel cell, in which a catalyst particle comprising platinum is supported on a carbon powder carrier. In the catalyst for a solid polymer fuel cell, the carbon powder carrier has a maximum water vapor absorption amount in a water vapor adsorption isotherm measured at 25°C of 150-250 m/g (in STP) on a catalyst mass basis, and the platinum particle has an average particle size of 3.5-8.0 nm and a platinum specific surface area (COMSA) due to CO adsorption of 40-100 m/g.
Inventors:
Koichi Matsutani
Takeshi Ueda
Shoichiro Hayakawa
Takeshi Ueda
Shoichiro Hayakawa
Application Number:
JP2011280728A
Publication Date:
November 25, 2015
Filing Date:
December 22, 2011
Export Citation:
Assignee:
Tanaka Kikinzoku Kogyo Co., Ltd.
International Classes:
H01M4/96; B01J23/42; B01J37/08; B01J37/12; H01M4/88; H01M4/92; H01M8/10
Domestic Patent References:
| JP2011146321A | ||||
| JP2005251455A | ||||
| JP2010192436A | ||||
| JP2010123572A | ||||
| JP2010146770A | ||||
| JP2006294306A | ||||
| JP2010123504A | ||||
| JP2012124001A |
Foreign References:
| WO2006088194A1 | ||||
| US20130244137 |
Attorney, Agent or Firm:
Patent business corporation Tanaka, Okazaki and Associates