Intermetallics as Novel Supports for Pt Monolayer O2 Reduction Electrocatalysts: Potential for Significantly Improving Properties

被引：126

作者：

Ghosh, Tanushree ^{[2
]}

Vukmirovic, Miomir B. ^{[1
]}

DiSalvo, Francis J. ^{[2
]}

Adzic, Radoslav R. ^{[1
]}

机构：

[1] Brookhaven Natl Lab, Dept Chem, Upton, NY 11973 USA

[2] Cornell Univ, Dept Chem & Biol Chem, Ithaca, NY 14853 USA

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2010年 / 132卷 / 03期

关键词：

OXYGEN REDUCTION; NANOPARTICLES;

D O I：

10.1021/ja905850c

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We report oil a new class of core-shell electrocatalysts for the oxygen-reduction reaction. These electrocatalysts comprise a Pt monolayer shell and ordered intermetallic compounds cores and have enhanced activity and stability compared with conventional ones. These advantages are derived From combining the unique properties of Pt monolayer catalysts (high activity, low metal content) and of the intermetallic compounds (high stability and, possibly, low price). This method holds excellent potential for creating efficient fuel cell electrocatalysts.

引用

页码：906 / +

页数：4

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