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. 29, 2020
Filed:
Jan. 30, 2019
Kabushiki Kaisha Toyota Chuo Kenkyusho, Nagakute, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Shuhei Yoshino, Nagakute, JP;
Kensaku Kodama, Nagakute, JP;
Yoshio Sageshima, Nagakute, JP;
Keiichiro Oishi, Nagakute, JP;
Yoriko Hasegawa, Nagakute, JP;
Noriyuki Kitao, Susono, JP;
KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO, Nagakute, JP;
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota, JP;
Abstract
An oxygen evolution catalyst includes a core and a shell covering the surface of the core. The core includes ruthenium oxide or metal ruthenium in at least a surface portion. The shell includes titania or a composite oxide of titanium and ruthenium. Such an oxygen evolution catalyst is obtained by (a) dispersing core particles each including ruthenium oxide or metal ruthenium in at least a surface portion in a solvent to obtain a dispersion, (b) adding a Ti source to the dispersion to produce precursor particles in which the surface of each core particle is covered with a titania precursor, and (c) collecting the precursor particles from the dispersion and heat-treating the precursor particles after drying.