材料科学与工程学报2017，Vol.35Issue(5)：713-718,6.DOI:10.14136/j.cnki.issn 1673-2812.2017.05.006
熔盐电解制备Zr基低价金属氧化物担载铂催化剂催化氧化甲醇和CO
Molten Salt Electrochemical Reduction of Zirconium Dioxide as Platinum Catalyst Carrier for Reduction of Methanol and CO
摘要
Abstract
A simple and effective electrochemical route was adopted to prepare highly stable and catalytic activity support materials for Pt catalysts for methanol catalytic by the partial metallization of ZrO2 in molten salts at 700℃.The composition and structural characteristics of the catalyst were investigated,and the electrochemical behaviors of the catalyst were examined.The results show that the carrier produced by moltensalts electrolysis can significantly enhance catalytic activity of Pt nanoparticles towards the oxidation of CO and methanol in an acidic medium.Two mechanism are accounted for the enhanced performance;one is the electronic effects,namely the electron transfer from Zr to Pt suppresses the poisoning CO adsorption on Pt sites and weakens the Pt=CO bond;the other is the synergistic effect between the carrier and Pt atom,which can facilitate the feasible removal and oxidation of poisoning intermediate CO.关键词
熔盐/ZrO2/甲醇氧化/反应机理Key words
molten salts/ZrO2/methanol catalytic/reaction mechanism分类
化学化工引用本文复制引用
艾四霞,石先兴,何锐,金先波..熔盐电解制备Zr基低价金属氧化物担载铂催化剂催化氧化甲醇和CO[J].材料科学与工程学报,2017,35(5):713-718,6.基金项目
国家自然科学基金资助项目(20973130,21173161)及教育部新世纪人才计划资助项目(NCET-11-0397) （20973130,21173161）
