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Classical strong metal-support interactions between gold nanoparticles and titanium dioxide
Tang, Hailian; Su, Yang; Zhang, Bingsen; Lee, Adam F.; Isaacs, Mark A.; Wilson, Karen; Li, Lin; Ren, Yuegong; Huang, Jiahui; Haruta, Masatake; Qiao, Botao; Liu, Xin; Jin, Changzi; Su, Dangsheng; Wang, Junhu; Zhang, Tao; Qiao, BT; Wang, JH (reprint author), Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China.; Wang, JH (reprint author), Chinese Acad Sci, Dalian Inst Chem Phys, Mossbauer Effect Data Ctr, Dalian 116023, Peoples R China.
2017-10-01
Source PublicationAMER ASSOC ADVANCEMENT SCIENCE
ISSN2375-2548
Volume3Issue:10Pages:-
AbstractSupported metal catalysts play a central role in the modern chemical industry but often exhibit poor on-stream stability. The strong metal-support interaction (SMSI) offers a route to control the structural properties of supported metals and, hence, their reactivity and stability. Conventional wisdom holds that supported Au cannot manifest a classical SMSI, which is characterized by reversible metal encapsulation by the support upon high-temperature redox treatments. We demonstrate a classical SMSI for Au/TiO2, evidenced by suppression of CO adsorption, electron transfer from TiO2 to Au nanoparticles, and gold encapsulation by a TiOx overlayer following high-temperature reduction (reversed by subsequent oxidation), akin to that observed for titania-supported platinum group metals. In the SMSI state, Au/TiO2 exhibits markedly improved stability toward CO oxidation. The SMSI extends to Au supported over other reducible oxides (Fe3O4 and CeO2) and other group IB metals (Cu and Ag) over titania. This discovery highlights the general nature of the classical SMSI and unlocks the development of thermochemically stable IB metal catalysts.; Supported metal catalysts play a central role in the modern chemical industry but often exhibit poor on-stream stability. The strong metal-support interaction (SMSI) offers a route to control the structural properties of supported metals and, hence, their reactivity and stability. Conventional wisdom holds that supported Au cannot manifest a classical SMSI, which is characterized by reversible metal encapsulation by the support upon high-temperature redox treatments. We demonstrate a classical SMSI for Au/TiO2, evidenced by suppression of CO adsorption, electron transfer from TiO2 to Au nanoparticles, and gold encapsulation by a TiOx overlayer following high-temperature reduction (reversed by subsequent oxidation), akin to that observed for titania-supported platinum group metals. In the SMSI state, Au/TiO2 exhibits markedly improved stability toward CO oxidation. The SMSI extends to Au supported over other reducible oxides (Fe3O4 and CeO2) and other group IB metals (Cu and Ag) over titania. This discovery highlights the general nature of the classical SMSI and unlocks the development of thermochemically stable IB metal catalysts.
description.department[tang, hailian ; su, yang ; li, lin ; ren, yuegong ; huang, jiahui ; haruta, masatake ; qiao, botao ; liu, xin ; jin, changzi ; su, dangsheng ; wang, junhu ; zhang, tao] chinese acad sci, dalian inst chem phys, state key lab catalysis, dalian 116023, peoples r china ; [tang, hailian ; jin, changzi ; wang, junhu ; zhang, tao] chinese acad sci, dalian inst chem phys, mossbauer effect data ctr, dalian 116023, peoples r china ; [tang, hailian ; ren, yuegong ; zhang, tao] univ chinese acad sci, beijing 100049, peoples r china ; [zhang, bingsen ; su, dangsheng] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, liaoning, peoples r china ; [lee, adam f. ; isaacs, mark a. ; wilson, karen] aston univ, european bioenergy res inst, birmingham b4 7et, w midlands, england ; [ren, yuegong ; huang, jiahui ; haruta, masatake] chinese acad sci, gold catalysis res ctr, dalian inst chem phys, dalian 116023, peoples r china ; [haruta, masatake] tokyo metropolitan univ, res ctr gold chem, grad sch urban environm sci, tokyo 1920397, japan ; [haruta, masatake] tokyo metropolitan univ, dept appl chem, grad sch urban environm sci, tokyo 1920397, japan
Subject AreaMultidisciplinary Sciences
Funding OrganizationNational Key R&D Program of China [2016YFA0202801, 2016YFA0202804]; Strategic Priority Research Program of the Chinese Academy of Sciences [XDB17020100]; National Natural Science Foundation of China [21776270, 21476232, 21303184, 91545119]; Department of Science and Technology of Liaoning Province [2015020086-101]; Youth Innovation Promotion Association of the Chinese Academy of Sciences (CAS) [2015152]; Strategic Priority Research Program of the CAS [XDA09030103]
Indexed BySCI
Language英语
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/79050
Collection中国科学院金属研究所
Corresponding AuthorQiao, BT; Wang, JH (reprint author), Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China.; Wang, JH (reprint author), Chinese Acad Sci, Dalian Inst Chem Phys, Mossbauer Effect Data Ctr, Dalian 116023, Peoples R China.
Recommended Citation
GB/T 7714
Tang, Hailian,Su, Yang,Zhang, Bingsen,et al. Classical strong metal-support interactions between gold nanoparticles and titanium dioxide[J]. AMER ASSOC ADVANCEMENT SCIENCE,2017,3(10):-.
APA Tang, Hailian.,Su, Yang.,Zhang, Bingsen.,Lee, Adam F..,Isaacs, Mark A..,...&Wang, JH .(2017).Classical strong metal-support interactions between gold nanoparticles and titanium dioxide.AMER ASSOC ADVANCEMENT SCIENCE,3(10),-.
MLA Tang, Hailian,et al."Classical strong metal-support interactions between gold nanoparticles and titanium dioxide".AMER ASSOC ADVANCEMENT SCIENCE 3.10(2017):-.
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