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Carbide-Supported Au Catalysts for Water-Gas Shift Reactions: A New Territory for the Strong Metal-Support Interaction Effect

文献类型：期刊论文

作者Bao, Xinhe1; Dong, Jinhu1,2; Fu, Qiang1; Jiang, Zheng3; Mei, Bingbao2,3
刊名JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
出版日期2018-10-24
卷号140期号:42页码:13808-13816
ISSN号0002-7863
DOI10.1021/jacs.8b08246
通讯作者Fu, Qiang(qfu@dicp.ac.cm) ; Bao, Xinhe(xhbao@dicp.ac.cn)
英文摘要Strong metal-support interaction (SMSI) has been regarded as one of the most important concepts in heterogeneous catalysis, which has been almost exclusively discussed in metal/oxide catalysts. Here, we show that gold/molybdenum carbide (Au/MoCx) catalysts feature highly dispersed Au overlayers, strong interfacial charge transfer between metal and support, and excellent activity in the low-temperature water-gas shift reaction (LT-WGSR), demonstrating the active SMSI state. Subsequent oxidation treatment results in strong aggregation of Au nanoparticles, weak interfacial electronic interaction, and poor LT-WGSR activity. The two interface states can be transformed into each other by alternative carbonization and oxidation treatments. This work reveals the active SMSI effect in metal/carbide catalysts induced by carbonization, which opens a new territory for this important concept.
WOS关键词MOLYBDENUM CARBIDE ; GOLD NANOPARTICLES ; CHARGE POLARIZATION ; HYDROGEN-PRODUCTION ; SURFACE-CHEMISTRY ; TEMPERATURE ; ELECTROCATALYSTS ; OXIDATION ; CO ; TRANSFORMATION
资助项目National Natural Science Foundation of China[21688102] ; National Natural Science Foundation of China[21573224] ; National Natural Science Foundation of China[91545204] ; Ministry of Science and Technology of China[2016YFA0200200] ; Ministry of Science and Technology of China[2017YFB0602205] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB17020000]
WOS研究方向Chemistry
语种英语
WOS记录号WOS:000448755200045
出版者AMER CHEMICAL SOC
资助机构National Natural Science Foundation of China ; National Natural Science Foundation of China ; Ministry of Science and Technology of China ; Ministry of Science and Technology of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Ministry of Science and Technology of China ; Ministry of Science and Technology of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Ministry of Science and Technology of China ; Ministry of Science and Technology of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Ministry of Science and Technology of China ; Ministry of Science and Technology of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences
源URL[http://cas-ir.dicp.ac.cn/handle/321008/166760]  
专题大连化学物理研究所_中国科学院大连化学物理研究所
通讯作者Bao, Xinhe; Fu, Qiang
作者单位1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, IChEM, Dalian 116023, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai Synchrotron Radiat Facil, Shanghai 201204, Peoples R China
推荐引用方式
GB/T 7714		 Bao, Xinhe,Dong, Jinhu,Fu, Qiang,et al. Carbide-Supported Au Catalysts for Water-Gas Shift Reactions: A New Territory for the Strong Metal-Support Interaction Effect[J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY,2018,140(42):13808-13816.
APA Bao, Xinhe,Dong, Jinhu,Fu, Qiang,Jiang, Zheng,&Mei, Bingbao.(2018).Carbide-Supported Au Catalysts for Water-Gas Shift Reactions: A New Territory for the Strong Metal-Support Interaction Effect.JOURNAL OF THE AMERICAN CHEMICAL SOCIETY,140(42),13808-13816.
MLA Bao, Xinhe,et al."Carbide-Supported Au Catalysts for Water-Gas Shift Reactions: A New Territory for the Strong Metal-Support Interaction Effect".JOURNAL OF THE AMERICAN CHEMICAL SOCIETY 140.42(2018):13808-13816.

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来源：大连化学物理研究所

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