固体高分子形燃料電池電極用触媒 - Nippon Steel & Sumitomo Metal Corporation

Title:

固体高分子形燃料電池電極用触媒

Document Type and Number:

Japanese Patent JP5121290

Kind Code:

B2

Abstract:

To provide a highly active catalyst for an electrode of a fuel cell formed by carrying metallic fine particles on a carbon material.

The catalyst for the electrode of a polymer electrolyte fuel cell is formed by carrying metallic fine particles on the carbon material, and the carbon material satisfies formulas (a) to (d) at the same time. (a) Nitrogen adsorbing specific surface area (SBET; m2/g): 200≤SBET≤2000; (b) a ratio of basic functional group amount (B; meq/g) to SBET: 0.5≤B/SBET≤8; (c) a ratio of total acidity (TA; meq/g) to SBET: 0.05≤TA/SBET≤2; and (d) a ratio of basic functional group amount B to total acidity TA: 2≤B/TA≤15.

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Inventors:

Takashi Iijima
Hideaki Sawada
Kenichiro Tadokoro
Tomohiro Haneda

Application Number:

JP2007108547A

Publication Date:

January 16, 2013

Filing Date:

April 17, 2007

Export Citation:

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Assignee:

Nippon Steel & Sumitomo Metal Corporation
Nippon Steel & Sumikin Chemical Co., Ltd.

International Classes:

H01M4/96; B01J23/42; B01J35/10; H01M8/10

Domestic Patent References:

JP2006209999A
JP2281564A
JP2003515872A
JP2000311694A
JP2006155921A
JP2005343775A
JP2007029931A
JP2004168587A
JP2005056686A
JP52013490A
JP2005129369A
JP2002289208A
JP2006179427A
JP8162133A

Foreign References:

WO2005104275A1

Attorney, Agent or Firm:

Katsuo Naruse
Tomohiro Nakamura
Masashi Torino
Kazuya Sasaki

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