The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 26, 2021
Filed:
Sep. 24, 2019
Tanaka Kikinzoku Kogyo K.k., Tokyo, JP;
Minoru Ishida, Kanagawa, JP;
Koichi Matsutani, Kanagawa, JP;
TANAKA KIKINZOKU KOGYO K.K., Tokyo, JP;
Abstract
The present invention is a catalyst for a solid polymer fuel cell including: catalyst particles of platinum, cobalt and manganese; and a carbon powder carrier supporting the catalyst particles, wherein the component ratio (molar ratio) of the platinum, cobalt and manganese of the catalyst particles is of Pt:Co:Mn=1:0.06 to 0.39:0.04 to 0.33, and wherein in an X-ray diffraction analysis of the catalyst particles, the peak intensity ratio of a Co—Mn alloy appearing around 2θ=27° is 0.15 or less on the basis of a main peak appearing around 2θ=40°. It is particularly preferred that the catalyst have a peak ratio of a peak of a CoPtalloy and an MnPtalloy appearing around 2θ=32° of 0.14 or more on the basis of a main peak.