文献类型：期刊文献

英文题名：Induced activation of the commercial Cu/ZnO/Al2O3 catalyst for the steam reforming of methanol

作者：Li, Didi[1];Xu, Fang[1];Tang, Xuan[2,3];Dai, Sheng[2,3];Pu, Tiancheng[4];Liu, Xianglin[1];Tian, Pengfei[5];Xuan, Fuzhen[5];Xu, Zhi[1];Wachs, Israel E.[4];Zhu, Minghui[1]

机构：[1]East China Univ Sci & Technol, Sch Chem Engn, State Key Lab Chem Engn, Shanghai, Peoples R China;[2]East China Univ Sci & Technol, Frontiers Sci Ctr Materiobiol & Dynam Chem, Key Lab Adv Mat, Inst Fine Chem,Sch Chem & Mol Engn,Feringa Nobel, Shanghai, Peoples R China;[3]East China Univ Sci & Technol, Frontiers Sci Ctr Materiobiol & Dynam Chem, Joint Int Res Lab Precis Chem & Mol Engn, Inst Fine Chem,Sch Chem & Mol Engn,Feringa Nobel, Shanghai, Peoples R China;[4]Lehigh Univ, Dept Chem & Biomol Engn, Operand Mol Spect & Catalysis Lab, Bethlehem, PA 18015 USA;[5]East China Univ Sci & Technol, Key Lab Pressure Syst & Safety, Minist Educ, Shanghai, Peoples R China

年份：2022

卷号：5

期号：2

起止页码：99

外文期刊名：NATURE CATALYSIS

收录：;EI(收录号：20220411512049);WOS:【SCI-EXPANDED(收录号:WOS:000744819200001)】；

基金：This work is supported by the National Natural Science Foundation of China (22078089, M.Z.; 21908054, Z.X.; and 22075076, Z.X.), Program for Professor of Special Appointment (Eastern Scholar) at Shanghai Institutions of Higher Learning (M.Z. and S.D.), Shanghai Sailing Program (19YF1410600, M.Z.), Shanghai Rising-star Program (20QA1402400, S.D.), Shanghai Municipal Science and Technology Major Project (2018SHZDZX03, S.D.) and Fundamental Research Funds for the Central Universities, the Programme of Introducing Talents of Discipline to Universities (B16017, S.D.). The research at Lehigh University is supported by the Center for Understanding & Control of Acid Gas-Induced Evolution of Materials for Energy, an Energy Frontier Research Center funded by the US Department of Energy, Office of Science, Office of Basic Energy Sciences under grant DE-SC0012577 (I.E.W.). X-ray absorption spectroscopy measurements were carried out at the Shanghai Synchrotron Radiation Facility. We thank P. F. Liu and Y. W. Liu at East China University of Science and Technology for the help with X-ray absorption spectroscopy characterization. Additional support was provided by the Frontiers Science Center for Materiobiology and Dynamic Chemistry and the Feringa Nobel Prize Scientist Joint Research Center.

语种：英文

外文关键词：Catalyst activity - Methanol - Metal nanoparticles - Steam reforming - Atmospheric pressure - Reducing agents - Surface structure

摘要：The surface structure of heterogeneous catalysts is closely associated with their catalytic performance. Current efforts for structural modification mainly focus on improving the catalyst synthesis details. Here we reveal an induced activation strategy to manipulate the catalyst surface reconstruction process by controlling the composition of reducing agents at the activation stage. Exposing the commercial Cu/ZnO/Al2O3 catalyst to a H-2/H2O/CH3OH/N-2 mixture at 300 degrees C and atmospheric pressure is found to accelerate the migration of ZnOx species onto the surface of metallic Cu-0 nanoparticles via an adsorbate-induced strong metal-support interaction. Such a morphological evolution improves the long-term stability by threefold and results in more abundant Cu-ZnOx interfacial sites with catalytic activity enhanced by twofold towards the methanol steam reforming reaction.