文献类型：期刊文献

英文题名：Electro-oxidation of formic acid on carbon supported Pt-Os catalyst

作者：Liu, Wei[1];Huang, Junjie[1]

机构：[1]Shaoxing Univ, Coll Chem & Chem Engn, Shaoxing 312000, Peoples R China

年份：2009

卷号：189

期号：2

起止页码：1012

外文期刊名：JOURNAL OF POWER SOURCES

收录：SCI-EXPANDED(收录号：WOS:000265310300021)、、EI(收录号：20091311987033)、Scopus(收录号：2-s2.0-62649165020)、WOS

基金：This work was supported by the programme of Shaoxing University (04LG1006).

语种：英文

外文关键词：Fuel cell; Formic acid; Pt-Os catalyst; Nano; Electrochemical oxidation

外文摘要：Pt-Os (3:1)/C catalyst was prepared through the route of thermal decomposition of metallic carbonyl cluster. TEM image showed Pt-Os nanoparticles were well dispersed on carbon substrate with an average particle size of 2.2 +/- 0.9nm. XRD pattern indicated Pt-Os has a face-centered cubic crystal structure. Characterized by cyclic voltammetry and chronciamperometry. Pt-Os (3:1)/C catalyst shows a superior electro-catalytic activity to formic acid oxidation in comparison with Pt/C catalyst. This improved electrocatalytic performace was mainly due to the fine dispersion of Pt-Os nano particles and bi-functional effect. (C) 2008 Elsevier B.V. All rights reserved.