文献类型：期刊文献

中文题名：Effects of CeO_(2)pre-calcined at different temperatures on the performance of Pt/CeO_(2)-C electrocatalyst for methanol oxidation reaction

作者：Guo-qing Li[1];Pu-kang Wen[1];Chen-qiang Gao[2];Tian-yi Zhang[2];Jun-yang Hu[2];Yu-hao Zhang[2];Shi-you Guan[3];Qing-feng Li[4];Bing Li[1]

机构：[1]School of Mechanical and Power Engineering,East China University of Science and Technology,Shanghai 200237,China;[2]School of Materials Science and Engineering,East China University of Science and Technology,Shanghai 200237,China;[3]Institute for Sustainable Energy,College of Sciences,Shanghai University,Shanghai 200237,China;[4]Department of Energy Conversion and Storage,Technical University of Denmark,Lyngby 2800,Denmark

年份：2021

卷号：28

期号：7

起止页码：1224

中文期刊名：International Journal of Minerals,Metallurgy and Materials

外文期刊名：矿物冶金与材料学报(英文版)

收录：CSTPCD;;Scopus;CSCD:【CSCD2021_2022】；

基金：financially supported by the National Nat-ural Science Foundation of China(No.51774145).

语种：英文

中文关键词：direct methanol fuel cell;platinum/cerium dioxide-carbon;electrocatalyst;methanol oxidation

摘要：Pt/CeO_(2)-C catalysts with CeO_(2)pre-calcined at 300-600℃were synthesized by combining hydrothermal calcination and wet im-pregnation.The effects of the pre-calcined CeO_(2)on the performance of Pt/CeO_(2)-C catalysts in methanol oxidation were investigated.The Pt/CeO_(2)-C catalysts with pre-calcined CeO_(2)at 300-600℃showed an average particle size of 2.6-2.9 nm and exhibited better methanol elec-tro-oxidation catalytic activity than the commercial Pt/C catalyst.In specific,the Pt/CeO_(2)-C catalysts with pre-calcined CeO_(2)at 400℃dis-played the highest electrochemical surface area value of 68.14 m2·g?1 and If/Ib ratio(the ratio of the forward scanning peak current density(If)and the backward scanning peak current density(Ib))of 1.26,which are considerably larger than those(53.23 m2·g?1 and 0.79,respectively)of the commercial Pt/C catalyst,implying greatly enhanced CO tolerance.