Improved Oxygen Reduction Activity on Pt3Ni(111) via Increased Surface Site Availability

  title={Improved Oxygen Reduction Activity on Pt3Ni(111) via Increased Surface Site Availability},
  author={Vojislav R. Stamenkovic and Ben Fowler and Bongjin Simon Mun and Guofeng Wang and Philip N. Ross and Christopher A. Lucas and Nenad M. Marković},
  pages={493 - 497}
The slow rate of the oxygen reduction reaction (ORR) in the polymer electrolyte membrane fuel cell (PEMFC) is the main limitation for automotive applications. We demonstrated that the Pt3Ni(111) surface is 10-fold more active for the ORR than the corresponding Pt(111) surface and 90-fold more active than the current state-of-the-art Pt/C catalysts for PEMFC. The Pt3Ni(111) surface has an unusual electronic structure (d-band center position) and arrangement of surface atoms in the near-surface… Expand
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