Nanosegregated surfaces as catalysts for fuel cells

Details Nanosegregated surfaces as catalysts for fuel cells Nanosegregated surfaces as catalysts for fuel cells

2011-01-18

2011-01-18

Mayes, Melvin C (Department: 1793)

Chemistry: electrical current producing apparatus, product, and

Fuel cell, subcombination thereof, or method of making or...

Electrode structure or composition

C502S185000

Reexamination Certificate

active

07871738

ABSTRACT:
A method of preparing a nanosegregated Pt alloy having enhanced catalytic properties. The method includes providing a sample of Pt and one or more of a transition metal in a substantially inert environment, and annealing the sample in such an environment for a period of time and at a temperature profile to form a nanosegregated Pt alloy having a Pt-skin on a surface. The resulting alloy is characterized by a plurality of compositionally oscillatory atomic layers resulting in an advantageous electronic structure with enhanced catalytic properties.

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