4.7 Article

Thermal decomposition of imidazolium-based ionic liquid binary mixture: Processes and mechanisms

Journal

JOURNAL OF MOLECULAR LIQUIDS
Volume 272, Issue -, Pages 37-42

Publisher

ELSEVIER
DOI: 10.1016/j.molliq.2018.09.058

Keywords

Ionic liquids; Thermal stability; IL binary mixture; Three-step decomposition; Loss prevention

Funding

  1. National Natural Science Foundation of China [21576136, 21436006]
  2. Natural Science Research of Jiangsu Higher Education Institutions of China [18IgA620002]
  3. Jiangsu Project Plan for Outstanding Talents in Six Research Fields [2015-XCL-019]

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Ionic liquids (ILs) have numerous properties with a wide range of applications as an advanced or specialized material. Mixtures of ILs can further optimize their correlative properties. In this study, the thermal stability of imidazolium-based IL binary mixtures was evaluated by alternating the compound mode and molar fraction (3:7, 5:5, and 7:3) of parent ILs. We found that the thermal stability of the mixtures considerably decreased through a three-step decomposition for specific compound modes. To understand the thermal behaviors of the IL binary mixtures, we argue that the thermal stability of the IL binary mixtures depended on which compounds the ions in the mixture constituted, and that equal molar fractions are deserved to notice for designing IL mixtures. The results of this study can help in the design of relatively stable IL mixtures for proactive loss prevention in the subsequent industrial applications. (C) 2018 Elsevier B.V. All rights reserved.

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