Patent ID: 9356299
Filing Date: 2016-05-31
CPC Classification: H01M,Y02E

Claim Text:
1. A fuel cell cathode comprising platinum, cerium and zirconium oxide particles, particles of a second metal, and at least one carbon support, which form a quaternary alloy catalyst, wherein the at least one carbon support is selected from the group consisting of active carbon with a particle diameter of 1 to 1,000 nm, carbon nanofibers with a fiber diameter of 1 to 1,000 nm and a length of 0.1 to 1,000 μm and graphitized carbon with a particle diameter of 1 to 1,000 nm, the quaternary alloy catalyst is formed by supporting cerium-zirconium oxide particles having a size of about 1 to about 100 nm on the carbon nanofibers and supporting the platinum and the second metal having a size of about 1 to about 100 nm on the at least one carbon support selected from the group consisting of the active carbon and the graphitized carbon.