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. 25, 2012
Filed:
Jun. 11, 2008
Hiroaki Takahashi, Susono, JP;
Yosuke Horiuchi, Kakegawa, JP;
Takahiro Nagata, Kakegawa, JP;
Tomoaki Terada, Kakegawa, JP;
Toshiharu Tabata, Kakegawa, JP;
Hiroaki Takahashi, Susono, JP;
Yosuke Horiuchi, Kakegawa, JP;
Takahiro Nagata, Kakegawa, JP;
Tomoaki Terada, Kakegawa, JP;
Toshiharu Tabata, Kakegawa, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, Aichi-ken, JP;
Cataler Corporation, Shizuoka, JP;
Abstract
This invention relates to an electrode catalyst for a fuel cell comprising catalyst metal particles of noble metal-base metal-Ce (cerium) ternary alloy carried on carbon materials, wherein the noble metal is at least one member selected from among Pt, Ru, Rh, Pd, Ag and Au, the base metal is at least one member selected from among Ir, Co, Fe, Ni and Mn, and the relative proportion (i.e., the molar proportion) of noble metal:base metal:Ce (cerium) is 20 to 95:5 to 60:0.1 to 3. The electrode catalyst for a fuel cell inhibits deterioration of an electrolyte membrane or an electrolyte in an electrode catalyst layer, improves durability, and, in particular, improves the capacity for power generation in the high current density region.