文献类型：期刊文献

英文题名：The influence of La doping on the catalytic behavior of Cu/ZrO₂ for methanol synthesis from CO₂ hydrogenation

作者：Guo, Xiaoming[1,2];Mao, Dongsen[1];Lu, Guanzhong[1,2];Wang, Song[1];Wu, Guisheng[1]

机构：[1]Shanghai Inst Technol, Sch Chem & Environm Engn, Res Inst Appl Catalysis, Shanghai 200235, Peoples R China;[2]E China Univ Sci & Technol, Res Inst Ind Catalysis, Shanghai 200237, Peoples R China

年份：2011

卷号：345

期号：1-2

起止页码：60

外文期刊名：JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000294526400007)】；

基金：The helpful suggestions provided by the anonymous reviewers are gratefully acknowledged. The authors also thank Science and Technology Commission of Shanghai Municipality (08520513600), Shanghai Municipal Education Commission (J51503) and Shanghai Institute of Technology (KJ2010-05) for financial support.

语种：英文

外文关键词：Cu/ZrO2 catalyst; La doping; Methanol synthesis; CO2 hydrogenation; Activity and selectivity

摘要：A series of Cu/ZrO2 catalysts with various La loadings for methanol synthesis from CO2 hydrogenation were prepared by a urea-nitrate combustion method. The catalysts were characterized with N-2 adsorption, XRD, reactive N2O adsorption, XPS, TPR, H-2-TPD and CO2-TPD techniques, and tested for methanol synthesis from CO2 hydrogenation. With increasing La loading, the Cu surface area increases first and then decreases, whereas the amount of basic site over catalysts increases continuously. The results of catalytic test reveal that a linear relationship exists between the conversion of CO2 and the Cu surface area. Moreover, it is found for the first time that the selectivity to methanol is related to the distribution of basic site on the catalyst surface. The presence of La favors the production of methanol, and the optimum catalytic activity is obtained when the amount of La doping is 5% of the total amount of Cu2+ and Zr4+. (C) 2011 Elsevier B.V. All rights reserved.