Structural factors controlling thermal stability of imidazolium ionic liquids with 1-n-butyl-3-methylimidazolium cation on γ-Al2O3
作者： Aslı Akçay , Volkan Balci , Alper Uzun
DOI: 10.1016/J.TCA.2014.05.018
关键词:
摘要: Abstract Structural factors determining thermal stability limits of imidazolium ionic liquids (ILs) with 1- n -butyl-3-methylimidazolium, [BMIM] + , cation on one the most commonly used metal-oxide support, γ-Al 2 O 3 were determined by thermogravimetric analysis complemented infrared (IR) spectroscopy. IR results show that inter-ionic interaction strength in ILs increases as their anion structure varies following order: [NTf ] − 6 4 . TGA data illustrate a strong dependence interactions. Thermal both bulk and -supported -based increase decreasing strength. limit IL octyl sulfate was lower than analogous hydrogen anion, because its exceptionally large size. Moreover, effect conditions becomes dominant interactions ILs.
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