	US 12,126,031 B2
	Supported platinum catalyst, cathode for fuel cell, fuel cell, and method for producing supported platinum catalyst
Yoshio Shodai, Osaka (JP); and Mizuho Anzai, Osaka (JP)
Assigned to TOYO TANSO CO., LTD., Osaka (JP)
Appl. No. 17/615,830
Filed by TOYO TANSO CO., LTD., Osaka (JP)
PCT Filed Jun. 3, 2020, PCT No. PCT/JP2020/021869 § 371(c)(1), (2) Date Dec. 2, 2021, PCT Pub. No. WO2020/246491, PCT Pub. Date Dec. 10, 2020.
Claims priority of application No. 2019-103749 (JP), filed on Jun. 3, 2019.
Prior Publication US 2022/0328846 A1, Oct. 13, 2022
Int. Cl. H01M 4/92 (2006.01); H01M 4/86 (2006.01); H01M 4/88 (2006.01)

CPC H01M 4/926 (2013.01) [H01M 4/8605 (2013.01); H01M 4/8828 (2013.01); H01M 2004/8689 (2013.01)]

16 Claims

1. A supported platinum catalyst comprising:

a carbon support; and

platinum fine particles supported on the carbon support,

the platinum fine particles being such that a ratio of a diffraction peak intensity of a (220) plane with respect to a total of diffraction peak intensities of a (111) plane, a (200) plane, and the (220) plane by X-ray diffraction is not less than 0.128,

the carbon support having an oxidation reaction temperature of not lower than 620° C.