Carbon-supported PdSn nanoparticles as catalysts for formic acid oxidation

被引：103

作者：

Liu, Zhaolin ^{[1
]}

Zhang, Xinhui ^{[1
]}

机构：

[1] Inst Mat Res & Engn, Singapore 117602, Singapore

来源：

ELECTROCHEMISTRY COMMUNICATIONS | 2009年 / 11卷 / 08期

关键词：

Carbon-supported PdSn nanoparticles; Palladium nanoparticles; Catalytic activity; Direct formic acid fuel cell; FUEL-CELLS; ELECTROOXIDATION; PLATINUM; METHANOL;

D O I：

10.1016/j.elecom.2009.06.023

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Pd and PdSn nanoparticles supported on Vulcan XC-72 carbon are prepared by a microwave-assisted polyol process. The catalysts are characterized by transmission electron microscopy (TEM), X-ray diffraction (XRD), linear sweeping voltammetry, and chronoamperometry. The results show that the Pd and PdSn nanoparticles, which are uniformly dispersed on carbon. are 2-10 nm in diameters. All Pd/C and PdSn/C catalysts display the characteristic diffraction peaks of a Pd face-centered cubic (fcc) crystal structure. It is found that the addition of Sn to Pd can increase the lattice parameter of Pd (fcc) crystal. The PdSn/C catalysts have higher electrocatalytic activity for formic acid oxidation than a comparative Pd/C catalyst and show great potential as less expensive electrocatalyst for formic acid electrooxidation in DFAFCs. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：1667 / 1670

页数：4

共 15 条

[1] The electro-oxidation of formic acid on Pt-Pd single crystal bimetallic surfaces [J].