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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.:

US 10135074 B1

PDFFull Text
Date of Patent:
Nov. 20, 2018

Filed:

Sep. 09, 2014

Carbon powder for catalyst, catalyst, electrode catalyst layer, membrane electrode assembly, and fuel cell using the carbon powder

Applicant:

Nissan Motor Co., Ltd., Yokohama-shi, Kanagawa, JP;

Inventors:

Shinichi Takahashi, Kanagawa, JP;

Atsushi Ohma, Kanagawa, JP;

Tetsuya Mashio, Kanagawa, JP;

Ken Akizuki, Kanagawa, JP;

Assignees:

NISSAN MOTOR CO., LTD., Yokohama-shi, JP;

NIPPON STEEL & SUMIKIN CHEMICAL CO., LTD., Tokyo, JP;

Attorney:

Foley & Lardner LLP

Primary Examiner:

Rena Dye Cronin

Int. Cl.
CPC ...
H01M 4/92 (2006.01); H01M 4/86 (2006.01); H01M 4/90 (2006.01); B01J 21/18 (2006.01); B01J 23/40 (2006.01); B01J 35/10 (2006.01); H01M 8/1004 (2016.01); C01B 31/00 (2006.01); B01J 35/00 (2006.01); B01J 37/08 (2006.01); H01M 8/1018 (2016.01);
U.S. Cl.
CPC ...
H01M 4/926 (2013.01); B01J 21/18 (2013.01); H01M 4/8673 (2013.01); H01M 4/9083 (2013.01); H01M 8/1004 (2013.01); B01J 23/40 (2013.01); B01J 35/0033 (2013.01); B01J 35/108 (2013.01); B01J 35/1028 (2013.01); B01J 35/1042 (2013.01); B01J 35/1057 (2013.01); B01J 35/1061 (2013.01); B01J 37/08 (2013.01); C01B 31/00 (2013.01); C01P 2006/12 (2013.01); H01M 2008/1095 (2013.01);
Abstract

The present invention is to provide a carbon powder that can provide a catalyst having excellent durability and a catalyst. A carbon powder for catalyst of the present invention is a carbon powder containing as a main component carbon, which has a BET specific surface area per unit weight of 900 m/g or greater, and a ratio R' (D′/G intensity ratio) of peak intensity for a D′-band (D′ intensity) measured in the vicinity of 1620 cmto peak intensity for a G-band (G intensity) measured in the vicinity of 1580 cmby Raman spectroscopy of 0.6 or less.

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