Cornell University

Huolin Xin

Francis J DiSalvo

Héctor D Abruña

Deli Wang

David Muller

Embodiments provide a nanoparticle and a method for preparing the nanoparticle, as well as a membrane that includes the nanoparticle and a fuel cell that includes the membrane. The method comprises a thermal treatment method that provides from a nanoparticle comprising a structurally disordered material the nanoparticle comprising: (1) a structurally ordered core comprising a first material; and (2) a shell surrounding and further structurally aligned with the structurally ordered core and comprising a second material different from the first material. Particularly desirable is a nanoparticle comprising a PtCo@Pt/C structurally ordered core-shell composition supported upon a carbon support.

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Huolin Xin