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.

Date of Patent:
Aug. 27, 2024

Filed:

Apr. 15, 2020
Applicants:

Zeon Corporation, Tokyo, JP;

Kyushu University, National University Corporation, Fukuoka, JP;

Inventors:

Naotoshi Nakashima, Fukuoka, JP;

Ganesan Pandian, Fukuoka, JP;

Hiroaki Shu, Tokyo, JP;

Mitsugu Uejima, Tokyo, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M 4/90 (2006.01); H01M 4/86 (2006.01); H01M 8/1004 (2016.01); H01M 12/08 (2006.01);
U.S. Cl.
CPC ...
H01M 8/1004 (2013.01); H01M 4/9008 (2013.01); H01M 4/9041 (2013.01); H01M 4/9083 (2013.01); H01M 12/08 (2013.01); H01M 4/8663 (2013.01);
Abstract

Provided is a catalyst that has excellent oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) catalytic activity and is useful as a catalyst for water electrolysis, an electrode catalyst for an air battery, or the like. The catalyst includes (A) either or both of Ni atoms and Fe atoms, (B) thiourea, and (C) fibrous carbon nanostructures. It is preferable that the catalyst includes (A) Ni atoms and Fe atoms, that the thiourea is coordinated with the Ni atoms and the Fe atoms, and that a mass ratio of the content of a Ni-thiourea coordination compound relative to the content of an Fe-thiourea coordination compound (Ni-thiourea coordination compound/Fe-thiourea coordination compound) is not less than 5/95 and not more than 70/30.


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