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:
Feb. 13, 2024
Filed:
Mar. 03, 2022
Ryo Shimizu, Toyota, JP;
Kumiko Nomura, Toyota, JP;
Tomohiro Takeshita, Nagakute, JP;
Shu Miyasaka, Kakegawa, JP;
Kenji Yamamoto, Kakegawa, JP;
Ryo Shimizu, Susono, JP;
Kumiko Nomura, Okazaki, JP;
Tomohiro Takeshita, Nagakute, JP;
Shu Miyasaka, Hamamatsu, JP;
Kenji Yamamoto, Hamamatsu, JP;
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota, JP;
CATALER CORPORATION, Kakegawa, JP;
Abstract
To provide an electrocatalyst for fuel cells, which is configured to ensure both the initial performance and durability of fuel cells. An electrocatalyst for fuel cells, wherein the electrocatalyst comprises a carbon support including a mesopore and a catalyst alloy supported on the carbon support, and the catalyst alloy is a catalyst alloy of platinum and a transition metal; wherein the mesopore includes at least one throat; wherein an average effective diameter of the at least one throat is 1.8 nm or more and less than 3.2 nm; and wherein a transition metal ratio of the catalyst alloy supported on a deeper-side region than the at least one throat, is lower than the transition metal ratio of the catalyst alloy supported on a nearer-side region than the at least one throat.