- Patent Title: Electrode catalyst for fuel cell, electrode catalyst layer for fuel cell, method for producing the same, and membrane electrode assembly and fuel cell using the catalyst layer
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Application No.: US15521676Application Date: 2015-10-08
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Publication No.: US10320020B2Publication Date: 2019-06-11
- Inventor: Shinichi Takahashi , Tetsuya Mashio , Norifumi Horibe , Atsushi Ohma
- Applicant: NISSAN MOTOR CO., LTD. , NIPPON STEEL CHEMICAL & MATERIAL CO., LTD.
- Applicant Address: JP Yokohama-shi JP Tokyo
- Assignee: NISSAN MOTOR CO., LTD.,NIPPON STEEL CHEMICAL & MATERIAL CO., LTD.
- Current Assignee: NISSAN MOTOR CO., LTD.,NIPPON STEEL CHEMICAL & MATERIAL CO., LTD.
- Current Assignee Address: JP Yokohama-shi JP Tokyo
- Agency: Foley & Lardner LLP
- Priority: JP2014-220569 20141029
- International Application: PCT/JP2015/078611 WO 20151008
- International Announcement: WO2016/067876 WO 20160506
- Main IPC: H01M8/1004
- IPC: H01M8/1004 ; B01J23/42 ; B01J35/10 ; H01M4/92 ; H01M4/86 ; H01M8/1041 ; H01M4/88 ; H01M8/1018

Abstract:
The present invention relates to an electrode catalyst for fuel cell containing a catalyst carrier having carbon as a main component and a catalytic metal carried on the catalyst carrier, wherein the electrode catalyst for fuel cell has a ratio R′ (D′/G intensity ratio) of a peak intensity of D′ band (D′ intensity) measured in the vicinity of 1620 cm−1 to a peak intensity of G band (G intensity) measured in the vicinity of 1580 cm−1 by Raman spectroscopy of more than 0.6 and 0.8 or less, and satisfies at least one of the (a) to (d). According to the present invention, an electrode catalyst for fuel cell excellent in gas transportability is provided.
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