Al2O3 Nanosheets Rich in Pentacoordinate Al3+ Ions Stabilize Pt-Sn Clusters for Propane Dehydrogenation

doi:10.1002/anie.201507119

	Al2O3 Nanosheets Rich in Pentacoordinate Al3+ Ions Stabilize Pt-Sn Clusters for Propane Dehydrogenation
	Shi, Lei 2; Deng, Gao-Ming 2; Li, Wen-Cui 2; Miao, Shu 1; Wang, Qing-Nan 2; Zhang, Wei-Ping 2; Lu, An-Hui 2
刊名	ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
	2015-11-16
卷号	54 期号:47 页码:13994-13998
关键词	Alumina Dehydrogenation Heterogeneous Catalysis Nanosheets Propane
ISSN号	1433-7851
DOI	10.1002/anie.201507119
文献子类	Article
英文摘要	In heterogeneous catalysis, supports play a crucial role in modulating the geometric and electronic structure of the active metal phase for optimizing the catalytic performance. A gamma-Al2O3 nanosheet that contains 27% pentacoordinate Al3+ sites can nicely disperse and stabilize raft-like Pt-Sn clusters as a result of strong interactions between metal and support. Consequently, there are strong electronic interactions between the Pt and Sn atoms, resulting in an increase in the electron density of the Pt sites. When used in the propane dehydrogenation reaction, this catalyst displayed an excellent specific activity for propylene formation with > 99% selectivity, and superior anti-coking and anti-sintering properties. Its exceptional ability to maintain the high activity and stability at ultrahigh space velocities further showed that the sheet construction of the catalyst facilitated the kinetic transfer process.
WOS关键词	ELECTRON-MICROSCOPY ; CO ADSORPTION ; FT-IR ; CATALYSTS ; NMR ; SPECTROSCOPY ; GAMMA-AL2O3 ; PROPYLENE ; CHEMISTRY ; ISOBUTANE
WOS研究方向	Chemistry
语种	英语
出版者	WILEY-V C H VERLAG GMBH
WOS记录号	WOS:000367722500024
内容类型	期刊论文
源URL	[http://cas-ir.dicp.ac.cn/handle/321008/171466]
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	Lu, An-Hui
作者单位	1.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy, Dalian 116023, Peoples R China 2.Dalian Univ Technol, Sch Chem Engn, State Key Lab Fine Chem, Dalian 116024, Peoples R China
推荐引用方式 GB/T 7714	Shi, Lei,Deng, Gao-Ming,Li, Wen-Cui,et al. Al2O3 Nanosheets Rich in Pentacoordinate Al3+ Ions Stabilize Pt-Sn Clusters for Propane Dehydrogenation[J]. ANGEWANDTE CHEMIE-INTERNATIONAL EDITION,2015,54(47):13994-13998.
APA	Shi, Lei.,Deng, Gao-Ming.,Li, Wen-Cui.,Miao, Shu.,Wang, Qing-Nan.,...&Lu, An-Hui.(2015).Al2O3 Nanosheets Rich in Pentacoordinate Al3+ Ions Stabilize Pt-Sn Clusters for Propane Dehydrogenation.ANGEWANDTE CHEMIE-INTERNATIONAL EDITION,54(47),13994-13998.
MLA	Shi, Lei,et al."Al2O3 Nanosheets Rich in Pentacoordinate Al3+ Ions Stabilize Pt-Sn Clusters for Propane Dehydrogenation".ANGEWANDTE CHEMIE-INTERNATIONAL EDITION 54.47(2015):13994-13998.