Patent ID: 11955645
Assignee: 3M INNOVATIVE PROPERTIES COMPANY
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 3:
4. A catalyst comprising:
a Ta layer having an outer layer with a layer comprising Pt thereon, wherein the Ta layer has an average thickness in a range from 0.04 to 30 nanometers, wherein the layer comprising Pt has an average thickness in a range from 0.04 to 50 nanometers, and wherein the Pt and Ta are present in an atomic ratio in a range from 0.01:1 to 10:1, and a layer comprising Ir is present between the Ta layer and the layer comprising Pt, and wherein the layer comprising Ir has an average thickness in a range from 0.04 to 50 nanometers.