Ultrastable Au nanoparticles on titania through an encapsulation strategy under oxidative atmosphere

doi:10.1038/s41467-019-13755-5

CORC > 金属研究所 > 中国科学院金属研究所

	Ultrastable Au nanoparticles on titania through an encapsulation strategy under oxidative atmosphere
	Liu, Shaofeng 2,3,4; Xu, Wei 5,6; Niu, Yiming 1; Zhang, Bingsen 1; Zheng, Lirong 5; Liu, Wei 2; Li, Lin 2; Wang, Junhu 2,3
刊名	NATURE COMMUNICATIONS
	2019-12-19
卷号	10 页码:9
ISSN号	2041-1723
DOI	10.1038/s41467-019-13755-5
通讯作者	Wang, Junhu(wangjh@dicp.ac.cn)
英文摘要	Supported gold catalysts play a crucial role in the chemical industry; however, their poor on-stream stability because of the sintering of the gold nanoparticles restricts their practical application. The strong metal-support interaction (SMSI), an important concept in heterogeneous catalysis, may be applied to construct the structure of catalysts and, hence, improve their reactivity and stability. Here we report an ultrastable Au nanocatalyst after calcination at 800 degrees C, in which Au nanoparticles are encapsulated by a permeable TiOx thin layer induced by melamine under oxidative atmosphere. Owning to the formed TiOx overlayer, the resulting Au catalyst is resistant to sintering and exhibits excellent activity and stability for catalytic CO oxidation. Furthermore, this special strategy can be extended to colloidal Au nanoparticles supported on TiO2 and commercial gold catalyst denoted as RR2Ti, providing a universal way to engineer and develop highly stable supported Au catalysts with tunable activity.
资助项目	National Natural Science Foundation of China[21476232] ; National Natural Science Foundation of China[21607029] ; International Partnership Program of Chinese Academy of Sciences[121421KYSB20170020] ; State Key Laboratory of Catalysis in Dalian Institute of Chemical Physics[N-16-07]
WOS研究方向	Science & Technology - Other Topics
语种	英语
出版者	NATURE PUBLISHING GROUP
WOS记录号	WOS:000509779000010
资助机构	National Natural Science Foundation of China ; International Partnership Program of Chinese Academy of Sciences ; State Key Laboratory of Catalysis in Dalian Institute of Chemical Physics
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/136632]
专题	金属研究所_中国科学院金属研究所
通讯作者	Wang, Junhu
作者单位	1.Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Shenyang 110016, Peoples R China 2.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China 3.Chinese Acad Sci, Dalian Inst Chem Phys, Mossbauer Effect Data Ctr, Dalian 116023, Peoples R China 4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 5.Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China 6.Rome Int Ctr Mat Sci Superstripes, Via Sabelli 119A, I-00185 Rome, Italy
推荐引用方式 GB/T 7714	Liu, Shaofeng,Xu, Wei,Niu, Yiming,et al. Ultrastable Au nanoparticles on titania through an encapsulation strategy under oxidative atmosphere[J]. NATURE COMMUNICATIONS,2019,10:9.
APA	Liu, Shaofeng.,Xu, Wei.,Niu, Yiming.,Zhang, Bingsen.,Zheng, Lirong.,...&Wang, Junhu.(2019).Ultrastable Au nanoparticles on titania through an encapsulation strategy under oxidative atmosphere.NATURE COMMUNICATIONS,10,9.
MLA	Liu, Shaofeng,et al."Ultrastable Au nanoparticles on titania through an encapsulation strategy under oxidative atmosphere".NATURE COMMUNICATIONS 10(2019):9.