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学科主题: 物理化学
题名: Enhancing chemical reactions in a confined hydrophobic environment: an NMR study of benzene hydroxylation in carbon nanotubes
作者: Zhang, Hongbo1;  Pan, Xiulian1;  Han, Xiuwen1;  Liu, Xiumei1;  Wang, Xuefeng1;  Shen, Wanling1;  Bao, Xinhe1
通讯作者: 潘秀莲 ;  包信和
刊名: CHEMICAL SCIENCE
发表日期: 2013
DOI: 10.1039/c2sc21761a
卷: 4, 期:3, 页:1075-1078
收录类别: SCI
合作性质: 
文章类型: Article
部门归属: 5
项目归属: 502
产权排名: 待补充
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Chemistry, Multidisciplinary
资助者: 1,1
研究领域[WOS]: Chemistry
英文摘要: We demonstrate here a concept that chemical reactions can be enhanced by utilizing the confined hydrophobic environment of carbon nanotube (CNT) channels to separate products from reactants during a reaction and hence shift the reaction equilibrium. Taking the hydroxylation of benzene to phenol as an example, we observed that benzene is enriched inside CNT channels while the product phenol was discriminatively expelled out of the channels, as shown by solid state NMR studies. Consequently, the reaction over a CNT-confined Re catalyst exhibited a 4 times higher activity than the same catalyst dispersed on the outer walls of the same CNTs. The effect of this selective enrichment of benzene on the reaction was further confirmed by varying the amount of benzene in the reaction over commercial activated carbon-supported catalyst. CNT channels discriminating hydrophobic from hydrophilic molecules are expected to be a general feature. It is of significance for many synthetic organic processes involving molecules with different hydrophobicity in the reactants and products.
关键词[WOS]: ADSORPTION ;  WATER ;  SPECTROSCOPY ;  SIMULATIONS ;  SEPARATION ;  MOLECULES ;  SILICA
语种: 英语
原文出处: 查看原文
WOS记录号: WOS:000314474900025
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/119345
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:
Zhang, Hongbo,Pan, Xiulian,Han, Xiuwen,et al. Enhancing chemical reactions in a confined hydrophobic environment: an NMR study of benzene hydroxylation in carbon nanotubes[J]. CHEMICAL SCIENCE,2013,4(3):1075-1078.
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