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1. (WO2018104775) ELECTRODE CATALYST FOR FUEL CELL, METHOD OF PRODUCING THE SAME, AND FUEL CELL

Pub. No.:    WO/2018/104775    International Application No.:    PCT/IB2017/001589
Publication Date: Fri Jun 15 01:59:59 CEST 2018 International Filing Date: Tue Dec 12 00:59:59 CET 2017
IPC: H01M 4/88
H01M 4/92
H01M 8/1018
Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA
CATALER CORPORATION
NIPPON STEEL & SUMIKIN CHEMICAL CO., LTD.
Inventors: MIZUTANI, Nobuaki
ITOH, Yusuke
YAMAMOTO, Toru
HORIAI, Kotaro
MAKINO, Yuki
KATAOKA, Mikihiro
Title: ELECTRODE CATALYST FOR FUEL CELL, METHOD OF PRODUCING THE SAME, AND FUEL CELL
Abstract:
The present invention relates to an electrode catalyst for a fuel cell that includes a carbon support (11) having pores (13) and catalyst particles containing platinum or a platinum alloy supported on the carbon support (11). The pores (13) of the carbon support (11) have a mode size of pores (13) in a range of 2.1 nm to 5.1 nm. A total pore volume of the pores (13) of the carbon support (11) is in a range of 21 cm3/g to 35 cm3/g. A distance between the catalyst particles and a surface of the carbon support (11) is in a range of 2.0 nm to 12 nm as a distance of a 50% cumulative frequency.