化工学报 ›› 2020, Vol. 71 ›› Issue (1): 26-33.DOI: 10.11949/0438-1157.20191240

• 综述与专论 • 上一篇    下一篇

离子液体汽化焓的测量方法

宋思婕1(),姚加1,李浩然1,2()   

  1. 1. 浙江大学化学系,浙江 杭州 310027
    2. 化学工程联合国家重点实验室,浙江大学化学工程与生物工程学院,浙江 杭州 310027
  • 收稿日期:2019-10-23 修回日期:2019-10-30 出版日期:2020-01-05 发布日期:2020-01-05
  • 通讯作者: 李浩然
  • 作者简介:宋思婕(1997—),女,硕士研究生,ssjie@zju.edu.cn
  • 基金资助:
    国家自然科学基金项目(21573196);国家高技术研究发展计划项目(SS2015AA020601);中央高校基本科研业务费专项资金项目

Methods for measuring vaporization enthalpies of ionic liquids

Sijie SONG1(),Jia YAO1,Haoran LI1,2()   

  1. 1. Department of Chemistry, Zhejiang University, Hangzhou 310027, Zhejiang, China
    2. State Key Laboratory of Chemical Engineering, Department of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, Zhejiang, China
  • Received:2019-10-23 Revised:2019-10-30 Online:2020-01-05 Published:2020-01-05
  • Contact: Haoran LI

摘要:

离子液体具有蒸气压低、不易挥发、导电能力强、化学性质稳定、可循环利用等特点,具有以下作用:能够替代有机溶剂作为绿色环保的新型溶剂;可以作为催化剂催化化学反应;可以作为电解质溶液参与电化学反应,制作新型电池;可以作为吸附气体的吸附剂等。过去人们认为离子液体不挥发,也不能测量它们的汽化焓,回顾了近年来离子液体的相关研究成果,发现陆续有研究者提出测量离子液体汽化焓的方法,鉴于目前缺少相关总结工作,将系统性地介绍这些方法并阐述其原理,为今后的离子液体研究提供指导。

关键词: 测量, 汽化, 离子液体, 焓, 热力学

Abstract:

Due to their characteristics, such as low vapor pressure, low volatilization, strong electrical conductivity, stable chemical properties, recyclability and so on, ionic liquids (ILs) can replace organic solvents as a new environmentally friendly solvent, can be used as a catalyst to catalyze chemical reactions, can participate in electrochemical reactions as electrolyte solutions, can make new batteries and so on. It is generally believed that ILs are not volatile and their vaporization enthalpies cannot be measured. However, in recent years, the related research results of ILs have been reviewed, and it has been found that researchers have successively proposed many methods for obtaining vaporization enthalpies of ILs. We will systematically introduce these methods, expounding their principles, and laying a solid foundation for future research.

Key words: measurement, vaporization, ionic liquids, enthalpy, thermodynamics

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