Improved Oxygen Reduction Activity on Pt <sub>3</sub> Ni(111) via Increased Surface Site Availability

R. Stamenković, Vojislav; Fowler, Ben; Simon Mun, Bongjin; Wang, Guofeng; N. Ross, Philip; A. Lucas, C.; M. Marković, Nenad

doi:10.1126/science.1135941

Public

Improved Oxygen Reduction Activity on Pt 3 Ni(111) via Increased Surface Site Availability

Published in Science • Jan 12, 2007

Authors:

Vojislav R. Stamenković

Ben Fowler

Bongjin Simon Mun

Abstract

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...

Subject

Proton exchange membrane fuel cell

Adsorption

Electrolyte

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