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题名: Effect of alumina support on catalytic performance of Pt-Sn/Al2O3 catalysts in one-step synthesis of N-phenylbenzylamine from aniline and benzyl alcohol
作者: Yin, Mengyao1, 2;  He, Songbo1;  Yu, Zhengkun1;  Wu, Kaikai1;  Wang, Liandi1;  Sun, Chenglin1
关键词: Alumina ;  Platinum-tin ;  Aniline ;  Benzyl alcohol ;  N-alkylation ;  Borrowing hydrogen strategy
刊名: CHINESE JOURNAL OF CATALYSIS
发表日期: 2013-08-01
DOI: 10.1016/S1872-2067(12)60608-1
卷: 34, 期:8, 页:1534-1542
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences ;  Technology
类目[WOS]: Chemistry, Applied ;  Chemistry, Physical ;  Engineering, Chemical
研究领域[WOS]: Chemistry ;  Engineering
英文摘要: The effect of alumina on the catalytic performance of Pt-Sn/Al2O3 catalysts in the green synthesis of secondary amines by N-alkylation of amines with alcohols based on the borrowing hydrogen strategy was investigated. N-alkylation of aniline with benzyl alcohol to produce N-phenylbenzylamine was used as a model reaction. Three different alumina supports were selected, and the corresponding catalysts were prepared by complex impregnation under vacuum. The supports and catalysts were characterized using N-2 adsorption-desorption, mercury intrusion porosimetry, X-ray diffraction, transmission electron and scanning electron microscopies, CO chemisorption, H-2 temperature-programmed reduction, and NH3 temperature-programmed desorption. The results show that the catalysts with small Pt particles that were highly dispersed on the alumina supports and interacted weakly with the supports had high catalytic activities. The large pore volumes and pore size distributions of the alumina supports helped diffusion and adsorption of the reactants on the catalyst surface and increased the catalytic activity; they also promoted removal of the products from the catalyst surface and enhanced the catalytic stability. However, strong acidity and acid distribution of the alumina supports decreased the selectivity for secondary amines and reduced the catalyst stability. (C) 2013, Dalian Institute of Chemical Physics, Chinese Academy of Sciences. Published by Elsevier B.V. All rights reserved.
关键词[WOS]: BORROWING HYDROGEN ;  TERTIARY-AMINES ;  ALKYLATION ;  SECONDARY ;  DEHYDROGENATION ;  NANOPARTICLES ;  SULFONAMIDES ;  ACID
语种: 英语
WOS记录号: WOS:000323239600009
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/137743
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy, Dalian 116023, Liaoning, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China

Recommended Citation:
Yin, Mengyao,He, Songbo,Yu, Zhengkun,et al. Effect of alumina support on catalytic performance of Pt-Sn/Al2O3 catalysts in one-step synthesis of N-phenylbenzylamine from aniline and benzyl alcohol[J]. CHINESE JOURNAL OF CATALYSIS,2013,34(8):1534-1542.
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