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.

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收藏

页码：147 / 152

页数：6

相关论文

共 39 条

[1] Colloidal synthesis of NixPt1-x nanoparticles with tuneable composition and size [J].

Ahrenstorf, Kirsten ;

Albrecht, Ole ;

Heller, Hauke ;

Kornowski, Andreas ;

Gorlitz, Detlef ;

Weller, Horst .

SMALL, 2007, 3 (02) :271-274

[2] Nucleation and Growth Mechanism of NixPt1-x Nanoparticles [J].

Ahrenstorf, Kirsten ;

Heller, Hauke ;

Kornowski, Andreas ;

Broekaert, Jose A. C. ;

Weller, Horst .

ADVANCED FUNCTIONAL MATERIALS, 2008, 18 (23) :3850-3856

[3] A class of non-precious metal composite catalysts for fuel cells [J].

Bashyam, Rajesh ;

Zelenay, Piotr .

NATURE, 2006, 443 (7107) :63-66

[4] Dissolution of transition metals in combinatorially sputtered Pt1-x-yMxMy′ (M, M′ = Co, Ni, Mn, Fe) PEMFC electrocatalysts [J].

Bonakdarpour, A. ;

Lobel, R. ;

Atanasoski, R. T. ;

Vernstrom, G. D. ;

Schmoeckel, A. K. ;

Debe, M. K. ;

Dahn, J. R. .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2006, 153 (10) :A1835-A1846

[5] Studies of transition metal dissolution from combinatorially sputtered, nanostructured Pt1-xMx (M = Fe, Ni; 0<x<1) electrocatalysts for PEM fuel cells [J].

Bonakdarpour, A ;

Wenzel, J ;

Stevens, DA ;

Sheng, S ;

Monchesky, TL ;

Löbel, R ;

Atanasoski, RT ;

Schmoeckel, AK ;

Vernstrom, GD ;

Debe, MK ;

Dahn, JR .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2005, 152 (01) :A61-A72

[6] Oxygen reduction activity of magnetron-sputtered Pt1-xCox (0 ≤ x ≤ 0.5) films [J].

Bonakdarpour, Arman ;

Lake, Kerry ;

Stevens, Krystal ;

Dahn, J. R. .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2008, 155 (02) :B108-B118

[7] Shape-controlled synthesis of platinum nanocrystals for catalytic and electrocatalytic applications [J].

Chen, Jingyi ;

Lim, Byungkwon ;

Lee, Eric P. ;

Xia, Younan .

NANO TODAY, 2009, 4 (01) :81-95

[8] Platinum-Alloy Cathode Catalyst Degradation in Proton Exchange Membrane Fuel Cells: Nanometer-Scale Compositional and Morphological Changes [J].

Chen, Shuo ;

Gasteiger, Hubert A. ;

Hayakawa, Katsuichiro ;

Tada, Tomoyuki ;

Shao-Horn, Yang .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2010, 157 (01) :A82-A97

[9] CLUSTER SIZE IN RANDOM MIXTURES AND PERCOLATION PROCESSES [J].

DOMB, C ;

SYKES, MF .

PHYSICAL REVIEW, 1961, 122 (01) :77-&

[10] Activity benchmarks and requirements for Pt, Pt-alloy, and non-Pt oxygen reduction catalysts for PEMFCs [J].

Gasteiger, HA ;

Kocha, SS ;

Sompalli, B ;

Wagner, FT .

APPLIED CATALYSIS B-ENVIRONMENTAL, 2005, 56 (1-2) :9-35

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