文献类型：期刊文献

英文题名：CeO2/Cu2O/Cu Tandem Interfaces for Efficient Water-Gas Shift Reaction Catalysis

作者：Li, Zhengjian[1];Wang, Mingzhi[1];Jia, Yanyan[2];Du, Ruian[1];Li, Tan[1];Zheng, Yanping[3];Chen, Mingshu[3];Qiu, Yongcai[1];Yan, Keyou[1];Zhao, Wei-Wei[4];Wang, Pei[6];Waterhouse, Geoffrey I. N.[5];Dai, Sheng[2];Zhao, Yun[1];Chen, Guangxu[1]

机构：[1]South China Univ Technol, Sch Environm & Energy, State Key Lab Luminescent Mat & Devices, Guangdong Prov Key Lab Atmospher Environm & Pollut, Guangzhou 510006, Guangdong, Peoples R China;[2]East China Univ Sci & Technol, Inst Fine Chem, Frontiers Sci Ctr Materiobiol & Dynam Chem,Sch Che, Feringa Nobel Prize Scientist Joint Res Ctr,Key La, Shanghai 200237, Peoples R China;[3]Xiamen Univ, Coll Chem & Chem Engn, Dept Chem, State Key Lab Phys Chem Solid Surfaces, Xiamen 361005, Fujian, Peoples R China;[4]Nanjing Univ, Sch Chem & Chem Engn, State Key Lab Analyt Chem Life Sci, Nanjing 210023, Peoples R China;[5]Univ Auckland, Sch Chem Sci, Auckland 1142, New Zealand;[6]Huazhong Agr Univ, Coll Sci, Wuhan 430074, Peoples R China

年份：2023

卷号：15

期号：26

起止页码：31584

外文期刊名：ACS APPLIED MATERIALS & INTERFACES

收录：;EI(收录号：20232814390111);WOS:【SCI-EXPANDED(收录号:WOS:001013741100001)】；

基金：This work was supported by the National Natural Science Foundation of China (21971070, 22106048), Natural Science Foundation of Guangdong Province (2022A1515012047, 2021A1515010091), Guangdong Innovative and Entrepreneurial Research Team Program (2019ZT08L075), Guangdong Pearl River Talent Program (2019QN01L159), Guangdong Provincial Key R&D Program (2020B010188002), Science and Technology Program of Guangzhou of China (202103040002), and the National Key R&D Program of China (2021YFA1501900) for financial support. G.I.N.W. acknowledges funding support from the Energy Education Trust of New Zealand and the MacDiarmid Institute for Advanced Materials and Nanotechnology.

语种：英文

外文关键词：Cu-CeO2 catalyst; Cu+; Cu-0 interface; tandem interface; hydrogen production; low-temperature WGS reaction

摘要：Metal-oxideinterfaces on Cu-based catalysts play very importantroles in the low-temperature water-gas shift reaction (LT-WGSR).However, developing catalysts with abundant, active, and robust Cu-metaloxide interfaces under LT-WGSR conditions remains challenging. Herein,we report the successful development of an inverse copper-ceriacatalyst (Cu@CeO2), which exhibited very high efficiencyfor the LT-WGSR. At a reaction temperature of 250 & DEG;C, the LT-WGSRactivity of the Cu@CeO2 catalyst was about three timeshigher than that of a pristine Cu catalyst without CeO2. Comprehensive quasi-in situ structural characterizations indicatedthat the Cu@CeO2 catalyst was rich in CeO2/Cu2O/Cu tandem interfaces. Reaction kinetics studies and densityfunctional theory (DFT) calculations revealed that the Cu+/Cu-0 interfaces were the active sites for the LT-WGSR,while adjacent CeO2 nanoparticles play a key role in activatingH(2)O and stabilizing the Cu+/Cu-0 interfaces.Our study highlights the role of the CeO2/Cu2O/Cu tandem interface in regulating catalyst activity and stability,thus contributing to the development of improved Cu-based catalystsfor the LT-WGSR.