Patent ID: 11949113
Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  B  Y | IPC B  H

Claim 0:
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.