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题名: An unexpected effect of water on the asymmetric hydrogenation of alpha-ketoesters on platinum nanoparticles confined in carbon nanotubes
作者: Guan, Zaihong1;  Lu, Shengmei1;  Chen, Zhijian1;  Li, Can1
关键词: Carbon nanotubes ;  Water effect ;  Asymmetric hydrogenation
刊名: JOURNAL OF CATALYSIS
发表日期: 2013-09-01
DOI: 10.1016/j.jcat.2013.04.021
卷: 305, 页:19-26
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences ;  Technology
类目[WOS]: Chemistry, Physical ;  Engineering, Chemical
研究领域[WOS]: Chemistry ;  Engineering
英文摘要: The influence of water on asymmetric hydrogenation of alpha-ketoesters on platinum nanoparticles confined in the channels of carbon nanotubes was investigated. As high as 95% enantioselectivity is achieved in the asymmetric hydrogenation of ethyl pyruvate in acetic acid/water solution compared with 86% enantioselectivity obtained in anhydrous acetic acid. The adsorption experiment confirmed that the presence of water can enrich the chiral modifier cinchonidine in the channels 3900 times of that in solution and also enhance the ability of the channels to discriminate between the reactant and product molecules with only small hydrophobic/hydrophilic difference that kinetically favors the catalytic reaction in the channels of carbon nanotubes. (C) 2013 Published by Elsevier Inc.
关键词[WOS]: ENANTIOSELECTIVE HYDROGENATION ;  ICE NANOTUBES ;  ADSORPTION ;  CATALYSIS ;  LIQUID ;  IRON ;  NANOFIBERS ;  PALLADIUM
语种: 英语
WOS记录号: WOS:000322501000003
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/137782
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, State Key Lab Catalysis, Dalian 116023, Peoples R China

Recommended Citation:
Guan, Zaihong,Lu, Shengmei,Chen, Zhijian,et al. An unexpected effect of water on the asymmetric hydrogenation of alpha-ketoesters on platinum nanoparticles confined in carbon nanotubes[J]. JOURNAL OF CATALYSIS,2013,305:19-26.
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