Thin-Film Cu–Pt(111) Near-Surface Alloys: Active Electrocatalysts for the Oxygen Reduction Reaction

A simple method is presented for the formation of thin films of Cu–Pt(111) near-surface alloys (NSA). In these thin films, the solute metal (Cu) is preferentially located in the second platinum layer and protected by a Pt surface layer. The NSA-films act as active and fairly stable electrocatalysts...

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Bibliographic Details
Published in:ACS catalysis 2012-07, Vol.2 (7), p.1457-1460
Main Authors: Henry, John B, Maljusch, Artjom, Huang, Minghua, Schuhmann, Wolfgang, Bondarenko, Alexander S
Format: Article
Language:English
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Summary:A simple method is presented for the formation of thin films of Cu–Pt(111) near-surface alloys (NSA). In these thin films, the solute metal (Cu) is preferentially located in the second platinum layer and protected by a Pt surface layer. The NSA-films act as active and fairly stable electrocatalysts for the reduction of oxygen with the activity and stability which approach those for bulk single crystalline Pt-alloy surfaces and ∼5 times more active than state-of-the-art Pt thin films.
ISSN:2155-5435
2155-5435
DOI:10.1021/cs300165t