Platinum and titanium containing electrocatalysts
AssigneeHonda Motor Co., Ltd.
InventorsTing He, Eric Rolland Kreidler
Life of this patent
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Abstract
The present teachings are directed toward electrocatalyst compositions of platinum, titanium and at least a third metal for use in fuel cells. The electrocatalyst composition is composed essentially of platinum present in an atomic percentage ranging between about 55 percent and about 85 percent, titanium present in an atomic percentage ranging between about 1 percent and about 30 percent, and at least a third metal present in an atomic percentage ranging between about 1 percent and about 30 percent. The third metal can be at least one member selected from the group consisting of nickel, vanadium and molybdenum.
Claims9
A fuel cell assembly comprising:
- a cathode,
- a membrane, and
- an anode;
- wherein the cathode comprises a composition consisting essentially of platinum, titanium, and a third metal,
- wherein platinum is present in an atomic percentage ranging between about 55 percent and about 85 percent, titanium is present in an atomic percentage ranging between about 1 percent and about 30 percent, and the third metal is present in an atomic percentage ranging between about 1 percent and about 30 percent,
- wherein the third metal is vanadium, and
- wherein the fuel cell assembly consists of a proton exchange membrane fuel cell assembly.
A fuel cell assembly comprising:
- a cathode,
- a membrane, and
- an anode;
- wherein the cathode consists essentially of platinum, titanium, and vanadium,
- wherein platinum is present in an atomic percentage ranging between about 55 percent and about 85 percent, titanium is present in an atomic percentage ranging between about 1 percent and about 30 percent, and vanadium is present in an atomic percentage ranging between about 1 percent and about 30 percent.
Dependencies are inferred from the claim text.