2014年10月
Introduction of an Ionic Liquid into the Micropores of a Metal-Organic Framework and Its Anomalous Phase Behavior
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
- ,
- ,
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- 巻
- 53
- 号
- 42
- 開始ページ
- 11302
- 終了ページ
- 11305
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1002/anie.201406011
- 出版者・発行元
- WILEY-V C H VERLAG GMBH
Controlling the dynamics of ionic liquids (ILs) is a significant issue for widespread use. Metal-organic frameworks (MOFs) are ideal host materials for ILs because of their small micropores and tunable host-guest interactions. Herein, we demonstrate the first example of an IL incorporated within the micropores of a MOF. The system studied consisted of EMI-TFSA (1-ethyl-3-methylimidazolium bis(trifluoromethylsulfonyl)amide) and ZIF-8 (composed of Zn(MeIM)(2); H(MeIM)=2-methylimidazole) as the IL and MOF, respectively. Construction of the EMI-TFSA in ZIF-8 was confirmed by X-ray powder diffraction, nitrogen gas adsorption, and infrared absorption spectroscopy. Differential scanning calorimetry and solid-state NMR measurements showed that the EMI-TFSA inside the micropores demonstrated no freezing transition down to 123K, whereas bulk EMI-TFSA froze at 231K. Such anomalous phase behavior originates from the nanosize effect of the MOF on the IL. This result provides a novel strategy for stabilizing the liquid phase of the ILs down to a lower temperature region.
- リンク情報
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- DOI
- https://doi.org/10.1002/anie.201406011
- J-GLOBAL
- https://jglobal.jst.go.jp/detail?JGLOBAL_ID=201402200149489526
- PubMed
- https://www.ncbi.nlm.nih.gov/pubmed/25167856
- Web of Science
- https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000343751100035&DestApp=WOS_CPL
- ID情報
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- DOI : 10.1002/anie.201406011
- ISSN : 1433-7851
- eISSN : 1521-3773
- J-Global ID : 201402200149489526
- PubMed ID : 25167856
- Web of Science ID : WOS:000343751100035