Correlation Between Surface Chemistry and Electrocatalytic Properties of Monodisperse PtxNi1-x Nanoparticles

被引：221

作者：

Wang, Chao ^{[1
]}

Chi, Miaofang ^{[2
]}

Wang, Guofeng ^{[3
]}

van der Vliet, Dennis ^{[1
]}

Li, Dongguo ^{[1
]}

More, Karren ^{[2
]}

Wang, Hsien-Hau ^{[1
]}

Schlueter, John A. ^{[1
]}

Markovic, Nenad M. ^{[1
]}

Stamenkovic, Vojislav R. ^{[1
]}

机构：

[1] Argonne Natl Lab, Div Mat Sci, Argonne, IL 60559 USA

[2] Oak Ridge Natl Lab, Div Mat Sci & Technol, Oak Ridge, TN 37831 USA

[3] Indiana Univ Purdue Univ, Dept Mech Engn, Indianapolis, IN 46202 USA

来源：

ADVANCED FUNCTIONAL MATERIALS | 2011年 / 21卷 / 01期

关键词：

OXYGEN REDUCTION ACTIVITY; ALLOY CATALYSTS; NI; FE; CO; DISSOLUTION; RESISTANCE; SIZE;

D O I：

10.1002/adfm.201001138

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Monodisperse and homogeneous PtxNi1-x alloy nanoparticles of various compositions are synthesized via an organic solution approach in order to reveal the correlation between surface chemistry and their electrocatalytic properties. Atomic-level microscopic analysis of the compositional profile and modeling of nanoparticle structure are combined to follow the dependence of Ni dissolution on the initial alloy composition and formation of the Pt-skeleton nanostructures. The developed approach and acquired knowledge about surface structure-property correlation can be further generalized and applied towards the design of advanced functional nanomaterials.

引用

收藏

页码：147 / 152

页数：6

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