US 11,949,113 B2
Electrode catalyst for fuel cell, and fuel cell using same
Mikihiro Kataoka, Kakegawa (JP); Kotaro Horiai, Kakegawa (JP); Tomoaki Terada, Kakegawa (JP); Yusuke Itoh, Nagoya (JP); and Mikihiro Hori, Nagoya (JP)
Assigned to CATALER CORPORATION, Kakegawa (JP); and TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota (JP)
Appl. No. 16/979,616
Filed by CATALER CORPORATION, Kakegawa (JP); and TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota (JP)
PCT Filed Mar. 13, 2019, PCT No. PCT/JP2019/010387
§ 371(c)(1), (2) Date Sep. 10, 2020,
PCT Pub. No. WO2019/177060, PCT Pub. Date Sep. 19, 2019.
Claims priority of application No. 2018-049227 (JP), filed on Mar. 16, 2018.
Prior Publication US 2021/0043947 A1, Feb. 11, 2021
Int. Cl. H01M 4/92 (2006.01); H01M 4/96 (2006.01); B01J 35/60 (2024.01)
CPC H01M 4/926 (2013.01) [H01M 4/96 (2013.01); B01J 35/60 (2024.01)] 18 Claims
OG exemplary drawing
 
1. An electrode catalyst for a fuel cell comprising catalyst metal particles containing platinum or a platinum alloy and carrier particles on which the catalyst metal particles are carried, wherein
the carrier particles are a carbonaceous material having a cumulative pore volume of pores having a diameter of 2 nm or less of 0.01 cc/g or more and 0.09 cc/g or less,
a ratio of the cumulative pore volume of pores having a diameter of 2 nm or less to a total cumulative pore volume of the carbonaceous material of 0.01 or more and 0.10 or less, and
a BET specific surface area of more than 900 m2/g.