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.
STATEMENT OF GOVERNMENT INTEREST
The United States Government claims certain rights in this invention pursuant to Contract No. W-31-109-ENG-38 between the United States: Government and the University of Chicago and/or pursuant to BE-AC02-06CH11357 between the United States Government and UChicago Argonne, LLC representing Argonne National Laboratory.