高等学校化学学报 ›› 2009, Vol. 30 ›› Issue (7): 1322.

• 研究论文 • 上一篇    下一篇

石英晶体微天平技术研究咪唑类离子液体与气体分子的相互作用

徐秀明1,2, 李昌志1,2, 赵宗保1, 王俊德1, 李海洋1   

  1. 1. 中国科学院大连化学物理研究所, 大连 116023;
    2. 中国科学院研究生院, 北京 100039
  • 收稿日期:2008-09-19 出版日期:2009-07-10 发布日期:2009-07-10
  • 通讯作者: 李海洋, 男, 博士, 研究员, 博士生导师, 主要从事压电传感器、质谱和离子迁移谱等检测技术及其应用研究. E-mail: hli@dicp.ac.cn
  • 基金资助:

    国家自然科学基金(批准号: 40637036)资助.

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.

摘要:

基于石英晶体微天平(Quartz Crystal Microbalance, QCM)技术, 建立了一种测定气体在离子液体(ILs)中基本热力学参数的方法. 测定了5种可挥发有机物(VOCs)在6种咪唑类离子液体中的亨利常数, 并对可能的作用机理进行了探讨. 结果表明, QCM技术可以作为研究离子液体溶解性和作用规律的有效方法.

关键词: 离子液体; 石英晶体微天平; 亨利常数; 热力学常数

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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