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

被引:45
|
作者
Henry, John B. [1 ]
Maljusch, Artjom
Huang, Minghua [1 ]
Schuhmann, Wolfgang [1 ]
Bondarenko, Alexander S. [1 ]
机构
[1] Ruhr Univ Bochum, CES, D-44780 Bochum, Germany
来源
ACS CATALYSIS | 2012年 / 2卷 / 07期
关键词
near-surface alloys; ORR; electrocatalysis; Pt(111)-like thin films; CATALYSTS; PLATINUM;
D O I
10.1021/cs300165t
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
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 similar to 5 times more active than state-of-the-art Pt thin films.
引用
收藏
页码:1457 / 1460
页数:4
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