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Reversible Hydrophobic-Hydrophilic Transition of Ionic Liquids Driven by Carbon Dioxide
Xiong, DZ; Cui, GK; Wang, JJ; Wang, HY; Li, ZY; Yao, KS; Zhang, SJ; Xiong, Dazhen; Cui, Guokai; Wang, Jianji; Wang, Huiyong; Li, Zhiyong; Yao, Kaisheng; Zhang, Suojiang
2015
Source PublicationANGEWANDTE CHEMIE-INTERNATIONAL EDITION
ISSN1433-7851
Volume54Issue:25Pages:7265
Abstract

Ionic liquids (ILs) with a reversible hydrophobic-hydrophilic transition were developed, and they exhibited unique phase behavior with H2O: monophase in the presence of CO2, but biphase upon removal of CO2 at room temperature and atmospheric pressure. Thus, coupling of reaction, separation, and recovery steps in sustainable chemical processes could be realized by a reversible liquid-liquid phase transition of such IL-H2O mixtures. Spectroscopic investigations and DFT calculations showed that the mechanism behind hydrophobic-hydrophilic transition involved reversible reaction of CO2 with anion of the ILs and formation of hydrophilic ammonium salts. These unique IL-H2O systems were successfully utilized for facile one-step synthesis of Au porous films by bubbling CO2 under ambient conditions. The Au porous films and the ILs were then separated simultaneously from aqueous solutions by bubbling N-2, and recovered ILs could be directly reused in the next process.

SubtypeArticle
DOI10.1002/anie.201500695
Indexed BySCI
Language英语
WOS IDWOS:000356390300005
Citation statistics
Cited Times:45[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/21512
Collection研究所(批量导入)
Corresponding AuthorWang, JJ
Recommended Citation
GB/T 7714
Xiong, DZ,Cui, GK,Wang, JJ,et al. Reversible Hydrophobic-Hydrophilic Transition of Ionic Liquids Driven by Carbon Dioxide[J]. ANGEWANDTE CHEMIE-INTERNATIONAL EDITION,2015,54(25):7265.
APA Xiong, DZ.,Cui, GK.,Wang, JJ.,Wang, HY.,Li, ZY.,...&Zhang, Suojiang.(2015).Reversible Hydrophobic-Hydrophilic Transition of Ionic Liquids Driven by Carbon Dioxide.ANGEWANDTE CHEMIE-INTERNATIONAL EDITION,54(25),7265.
MLA Xiong, DZ,et al."Reversible Hydrophobic-Hydrophilic Transition of Ionic Liquids Driven by Carbon Dioxide".ANGEWANDTE CHEMIE-INTERNATIONAL EDITION 54.25(2015):7265.
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