US 12,074,355 B2
Catalyst, electrode, membrane electrode assembly, and air battery
Naotoshi Nakashima, Fukuoka (JP); Ganesan Pandian, Fukuoka (JP); Hiroaki Shu, Tokyo (JP); and Mitsugu Uejima, Tokyo (JP)
Assigned to ZEON CORPORATION, Tokyo (JP); and KYUSHU UNIVERSITY, NATIONAL UNIVERSITY CORPORATION, Fukuoka (JP)
Appl. No. 17/594,184
Filed by ZEON CORPORATION, Tokyo (JP); and KYUSHU UNIVERSITY, NATIONAL UNIVERSITY CORPORATION, Fukuoka (JP)
PCT Filed Apr. 15, 2020, PCT No. PCT/JP2020/016587
§ 371(c)(1), (2) Date Oct. 6, 2021,
PCT Pub. No. WO2020/213647, PCT Pub. Date Oct. 22, 2020.
Claims priority of application No. 2019-077295 (JP), filed on Apr. 15, 2019.
Prior Publication US 2022/0181665 A1, Jun. 9, 2022
Int. Cl. H01M 4/90 (2006.01); H01M 4/86 (2006.01); H01M 8/1004 (2016.01); H01M 12/08 (2006.01)
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)] 8 Claims
OG exemplary drawing
 
1. A catalyst comprising:
(A) Ni atoms and Fe atoms;
(B) thiourea; and
(C) fibrous carbon nanostructures;
wherein the thiourea is coordinated with the Ni atoms and the Fe atoms, and
a mass ratio of content of a Ni-thiourea coordination compound relative to content of an Fe-thiourea coordination compound, expressed as Ni-thiourea coordination compound/Fe-thiourea coordination compound, is not less than 5/95 and not more than 70/30.