Patent ID: 11901568
Assignee: CATALER CORPORATION
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  C  Y | IPC C  H

Claim 0:
1. An electrocatalyst for fuel cells,
wherein the electrocatalyst comprises a carbon support including a mesopore and a catalyst alloy supported on the carbon support, and the catalyst alloy is a catalyst alloy of platinum and a transition metal;
wherein the mesopore includes at least one throat;
wherein an average effective diameter of the at least one throat is 1.8 nm or more and less than 3.2 nm; and
wherein a transition metal ratio of the catalyst alloy supported on a deeper-side region than the at least one throat, is lower than the transition metal ratio of the catalyst alloy supported on a nearer-side region than the at least one throat.