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Wet-Chemistry Strong Metal-Support Interactions in Titania-Supported Au Catalysts

文献类型：期刊论文

作者Zhang, Jian5; Wang, Hai1; Wang, Liang1; Ali, Sajjad3; Wang, Chengtao2; Wang, Lingxiang2; Meng, Xiangju2; Li, Bo3; Su, Dang Sheng3,4; Xiao, Feng-Shou1,2,5
刊名JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
出版日期2019-02-20
卷号141期号:7页码:2975-2983
ISSN号0002-7863
DOI10.1021/jacs.8b10864
通讯作者Wang, Liang(liangwang@zju.edu.cn) ; Li, Bo(boli@imr.ac.cn) ; Xiao, Feng-Shou(fsxiao@zju.edu.cn)
英文摘要Classical strong metal support interactions (SMSI), which play a crucial role in the preparation of supported metal nanoparticle catalysts, is one of the most important concepts in heterogeneous catalysis. The conventional wisdom for construction of classical SMSI involves in redox treatments at high-temperatures by molecular oxygen or hydrogen, sometimes causing sintered metal nanoparticles. before SMSI formation. Herein, we report that the aforementioned issue can be effectively avoided by a wet chemistry methodology. As a typical example, we demonstrate a new concept of wet-chemistry SMSI (wcSMSI) that can be constructed on titania-supported Au nanoparticles (Au/TiO2-wcSMSI), where the key is to employ a redox interaction between Au delta+ and Ti3+ precursors in aqueous solution. The wcSMSI is evidenced by covering Au nanoparticles with the TiOx overlayer, electronic interaction between Au and TiO2, and suppression of CO adsorption on Au nanoparticles. Owing to the wcSMSI, the Au-TiOx interface with an improved redox property is favorable for oxygen activation, accelerating CO oxidation. In addition, the oxide overlayer efficiently stabilizes the Au nanoparticles, achieving sinter-resistant Au/TiO2-wcSMSI catalyst in CO oxidation.
资助项目National Key Research and Development Program of China[2018YFB0604801] ; National Natural Science Foundation of China[21822203] ; National Natural Science Foundation of China[91645105] ; National Natural Science Foundation of China[91634201] ; Natural Science Foundation of Zhejiang Province[LR18B030002] ; China Postdoctoral Science Foundation[2018M630662] ; Youth Foundation[20160520126JH]
WOS研究方向Chemistry
语种英语
WOS记录号WOS:000459642000030
出版者AMER CHEMICAL SOC
资助机构National Key Research and Development Program of China ; National Natural Science Foundation of China ; Natural Science Foundation of Zhejiang Province ; China Postdoctoral Science Foundation ; Youth Foundation
源URL[http://ir.imr.ac.cn/handle/321006/131870]  
专题金属研究所_中国科学院金属研究所
通讯作者Wang, Liang; Li, Bo; Xiao, Feng-Shou
作者单位1.Zhejiang Univ, Key Lab Biomass Chem Engn, Minist Educ, Coll Chem & Biol Engn, Hangzhou 310027, Zhejiang, Peoples R China
2.Zhejiang Univ, Key Lab Appl Chem Zhejiang Prov, Dept Chem, Hangzhou 310028, Zhejiang, Peoples R China
3.Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China
4.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy, Dalian 116023, Peoples R China
5.Beijing Univ Chem Technol, Beijing Adv Innovat Ctr Soft Matter Sci & Engn, Beijing 100029, Peoples R China
推荐引用方式
GB/T 7714		 Zhang, Jian,Wang, Hai,Wang, Liang,et al. Wet-Chemistry Strong Metal-Support Interactions in Titania-Supported Au Catalysts[J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY,2019,141(7):2975-2983.
APA Zhang, Jian.,Wang, Hai.,Wang, Liang.,Ali, Sajjad.,Wang, Chengtao.,...&Xiao, Feng-Shou.(2019).Wet-Chemistry Strong Metal-Support Interactions in Titania-Supported Au Catalysts.JOURNAL OF THE AMERICAN CHEMICAL SOCIETY,141(7),2975-2983.
MLA Zhang, Jian,et al."Wet-Chemistry Strong Metal-Support Interactions in Titania-Supported Au Catalysts".JOURNAL OF THE AMERICAN CHEMICAL SOCIETY 141.7(2019):2975-2983.

入库方式： OAI收割

来源：金属研究所

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