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

文献类型：期刊论文

作者Liu, Shaofeng2,3,4; Xu, Wei1,5; Niu, Yiming6; Zhang, Bingsen6; Zheng, Lirong5; Liu, Wei2; Li, Lin2; Wang, Junhu2,3
刊名NATURE COMMUNICATIONS
出版日期2019-12-19
卷号10页码:9
ISSN号2041-1723
DOI10.1038/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
WOS记录号WOS:000509779000010
出版者NATURE PUBLISHING GROUP
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
源URL[http://ir.imr.ac.cn/handle/321006/136635]  
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.Rome Int Ctr Mat Sci Superstripes, Via Sabelli 119A, I-00185 Rome, Italy
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.Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Shenyang 110016, Peoples R China
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.

入库方式： OAI收割

来源：金属研究所

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