Platinum nickel catalyst alloy

Debe, Mark K.; Vernstrom, George D.; Steinbach, Andrew J. L.

Platinum nickel catalyst alloy

Patent · 15 October 2013

OSTI ID:1531878

Debe, Mark K.; Vernstrom, George D.; Steinbach, Andrew J. L.

A Pt--Ni catalyst is provided which demonstrates an unusually high oxygen reduction mass activity. In some embodiments, the Pt--Ni catalyst is a Pt--Ni binary alloy. In some embodiments, the catalyst may be characterized as having a Pt fcc lattice parameter of less than 3.71 Angstroms or 0.371 nm. In some embodiments the catalyst has a Pt fcc lattice parameter of between 3.69 Angstroms (or 0.369 nm) and 3.73 Angstroms (or 0.373 nm). In some embodiments, the catalyst may be characterized as having a composition of close to Pt.sub.xNi.sub.(1-x), where x is between 0.2 and 0.4. In some embodiments the catalyst comprises nanostructured elements comprising microstructured support whiskers bearing a thin film of nanoscopic catalyst particles comprising a catalyst material described above. The catalyst may be particularly useful as a fuel cell catalyst and more specifically as a fuel cell cathode catalyst.

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Research Organization:: 3M Innovative Properties Company, St. Paul, MN (United States)

Sponsoring Organization:: USDOE

DOE Contract Number:: FG36-07GO17007

Assignee:: 3M Innovative Properties Company (St. Paul, MN)

Patent Number(s):: 8,557,484

Application Number:: 13/643,353

OSTI ID:: 1531878

Country of Publication:: United States

Language:: English

References (30)

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