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:
Dec. 09, 2025
Filed:
Feb. 05, 2021
University of Yamanashi, Kofu, JP;
Nikki-universal Co., Ltd., Tokyo, JP;
Toshihiro Miyao, Kofu, JP;
Hanako Nishino, Kofu, JP;
Kazutoshi Higashiyama, Kofu, JP;
Makoto Uchida, Kofu, JP;
Akihiro Iiyama, Kofu, JP;
Kazuya Shibanuma, Hiratsuka, JP;
Naoto Koizumi, Hiratsuka, JP;
UNIVERSITY OF YAMANASHI, Yamanashi, JP;
NIKKI-UNIVERSAL CO., LTD., Tokyo, JP;
Abstract
The present invention provides a supported metal catalyst with excellent effectiveness factor of active metal particles which are also free from deactivation by contacting with ionomer. According to the present invention, provided is a supported metal catalyst, comprising a support that is a collective body of conductive particles; and dispersed active metal particles supported on the conductive particles, wherein the conductive particles include a plurality of pores, an average entrance pore diameter of the pores is 1 to 20 nm, a standard deviation of the average entrance pore diameter is equal to or less than 50% of the average entrance pore diameter, a number fraction of the active metal particles supported in a surface layer region of the conductive particles divided by the total number of the active metal particles is equal to or more than 50%, and the surface layer region is a region on a surface of the conductive particles or a region in the pores within a depth of 15 nm from the surface.