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:
May. 02, 2006
Filed:
Sep. 26, 2003
Hisao Kato, Nisshin, JP;
Hisao Kato, Nisshin, JP;
Toyota Jicosha Kabushiki Kaisha, Toyota, JP;
Abstract
In an aspect of the invention, a fuel cell electrocatalyst comprises a carrier and a catalyst layer made of a Pt—Ru alloy supported on the carrier, and having the oxygen content of 4.4 wt % or less. Moreover, a value of the amount of oxygen that exists in one layer of the outermost surface of a component atom of the catalyst layer is 14.1% or less. Furthermore, in another aspect of the invention, a method of producing the fuel cell electrocatalyst comprises a supporting step of supporting a catalyst layer made of an alloy including Pt and Ru on a carrier, and an oxygen content regulating step of regulating the oxygen content of the catalyst layer.