Classical strong metal-support interactions between gold nanoparticles and titanium dioxide

doi:10.1126/sciadv.1700231

	Classical strong metal-support interactions between gold nanoparticles and titanium dioxide
	Qiao, Botao 1; Liu, Xin 1; Jin, Changzi 1,2; Wang, Junhu 1,2; Su, Dangsheng 1,4; Zhang, Tao 1,2,3; Tang, Hailian 1,2,3; Su, Yang 1; Zhang, Bingsen 4; Lee, Adam F.5
刊名	SCIENCE ADVANCES
	2017-10-01
卷号	3 期号:10
ISSN号	2375-2548
DOI	10.1126/sciadv.1700231
文献子类	Article
英文摘要	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.
WOS关键词	CARBON-MONOXIDE OXIDATION ; CO OXIDATION ; ELECTRON-MICROSCOPY ; HETEROGENEOUS CATALYSIS ; THERMAL-STABILITY ; AU/TIO2 CATALYSTS ; RH/TIO2 CATALYSTS ; IR SPECTROSCOPY ; ACTIVE GOLD ; TIO2
WOS研究方向	Science & Technology - Other Topics
语种	英语
出版者	AMER ASSOC ADVANCEMENT SCIENCE
WOS记录号	WOS:000417998700004
内容类型	期刊论文
源URL	[http://cas-ir.dicp.ac.cn/handle/321008/169186]
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	Qiao, Botao; Wang, Junhu
作者单位	1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China 2.Chinese Acad Sci, Dalian Inst Chem Phys, Mossbauer Effect Data Ctr, Dalian 116023, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Liaoning, Peoples R China 5.Aston Univ, European Bioenergy Res Inst, Birmingham B4 7ET, W Midlands, England 6.Chinese Acad Sci, Gold Catalysis Res Ctr, Dalian Inst Chem Phys, Dalian 116023, Peoples R China 7.Tokyo Metropolitan Univ, Res Ctr Gold Chem, Grad Sch Urban Environm Sci, Tokyo 1920397, Japan 8.Tokyo Metropolitan Univ, Dept Appl Chem, Grad Sch Urban Environm Sci, Tokyo 1920397, Japan
推荐引用方式 GB/T 7714	Qiao, Botao,Liu, Xin,Jin, Changzi,et al. Classical strong metal-support interactions between gold nanoparticles and titanium dioxide[J]. SCIENCE ADVANCES,2017,3(10).
APA	Qiao, Botao.,Liu, Xin.,Jin, Changzi.,Wang, Junhu.,Su, Dangsheng.,...&Haruta, Masatake.(2017).Classical strong metal-support interactions between gold nanoparticles and titanium dioxide.SCIENCE ADVANCES,3(10).
MLA	Qiao, Botao,et al."Classical strong metal-support interactions between gold nanoparticles and titanium dioxide".SCIENCE ADVANCES 3.10(2017).