Chem. J. Chinese Universities ›› 2009, Vol. 30 ›› Issue (7): 1322.

• Articles • Previous Articles     Next Articles

Molecular Interactions Between Imidazole-based Ionic Liquids and Gases Using Quartz Crystal Microbalance

XU Xiu-Ming1,2, LI Chang-Zhi1,2, ZHAO Zong-Bao1, WANG Jun-De1, LI Hai-Yang1*   

  1. 1. Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China;
    2. Graduate School of the Chinese Academy of Sciences, Beijing 100039, China
  • Received:2008-09-19 Online:2009-07-10 Published:2009-07-10
  • Contact: LI Hai-Yang. E-mail: hli@dicp.ac.cn
  • Supported by:

    国家自然科学基金(批准号: 40637036)资助.

Abstract:

A convenient method to measure the solubility and thermodynamic properties for ionic liquids(ILs) towards gases under atmospheric pressure was developed based on the quartz crystal microbalance(QCM) technique. By using ILs as sensitive coating of QCM, Henry′s constants of typical volatile organic compounds(VOCs) on five imidazole-based ILs were measured. The molecular interactions between ILs and VOCs were discussed based on the values of Henry′s constants. Results indicated that the QCM technique could be an efficient approach for studing the solubility property and interaction properties of ILs.

Key words: Ionic liquids; Quartz crystal microbalance; Henry′s constant; Thermodynamic property

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