文献类型：期刊文献

英文题名：Thermal Stability of Ionic Liquids: Current Status and Prospects for Future Development

作者：Xu, Chenqian[1];Cheng, Zhenmin[1]

机构：[1]East China Univ Sci & Technol, Sch Chem Engn, State Key Lab Chem Engn, Shanghai 200237, Peoples R China

年份：2021

卷号：9

期号：2

外文期刊名：PROCESSES

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000623197400001)】；

基金：This research was funded by the National Natural Science Foundation of China (No. 21676085) and the National Key R&D Program of China (No. 2019YFC1906705).

语种：英文

外文关键词：ionic liquid; thermal stability; thermal decomposition kinetics; dicationic ionic liquid

摘要：Ionic liquids (ILs) are the safest solvent in various high-temperature applications due to their non-flammable properties. In order to obtain their thermal stability properties, thermogravimetric analysis (TGA) is extensively used to analyze the kinetics of the thermal decomposition process. This review summarizes the different kinetics analysis methods and finds the isoconversional methods are superior to the Arrhenius methods in calculating the activation energy, and two tools-the compensation effect and master plots-are suggested for the calculation of the pre-exponential factor. With both parameters, the maximum operating temperature (MOT) can be calculated to predict the thermal stability in long-term runnings. The collection of thermal stability data of ILs with divergent cations and anions shows the structure of cations such as alkyl side chains, functional groups, and alkyl substituents will affect the thermal stability, but their influence is less than that of anions. To develop ILs with superior thermal stability, dicationic ILs (DILs) are recommended, and typically, [C-4(MIM)(2)][NTf2](2) has a decomposition temperature as high as 468.1 degrees C. For the convenience of application, thermal stability on the decomposition temperature and thermal decomposition activation energy of 130 ILs are summarized at the end of this manuscript.