Conductivity of 1-Ethyl-3-methylimidazolium Chloride (EMIC) and Aluminum Chloride (AlCl3) Ionic Liquids at different Temperatures and AlCl3 Mole Fractions”, ECS Transactions, Vol 98 (10), pp.129, 2020
Conductivity of 1-Ethyl-3-methylimidazolium Chloride (EMIC) and Aluminum Chloride (AlCl3) Ionic Liquids at different Temperatures and AlCl3 Mole Fractions”, ECS Transactions, Vol 98 (10), pp.129, 2020
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不同温度和 AlCl3 摩尔分数下 1-乙基-3-甲基咪唑氯化物 (EMIC) 和氯化铝 (AlCl3) 离子液体的电导率，ECS Transactions，第 98 卷 (10)，第 129 页，2020 年
DOI：
10.1149/09810.0129ecst
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发表时间：
2020
期刊：
影响因子：
--
通讯作者：
Pravin S. Shinde, Aninda N.
中科院分区：
文献类型：
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作者：
Pravin S. Shinde, Aninda N.
报道了由1-乙基-3-甲基咪唑氯化物（EMIC）和氯化铝（AlCl 3）组成的离子液体（IL）在不同AlCl 3摩尔分数（XAl）和温度（343-383 K）下的电导率（κ）。选择EMIC-AlCl 3 IL中0.6、0.643和0.667的XAl值以保持所需的刘易斯酸度。采用电化学阻抗谱（EIS）技术研究了离子液体中阴离子的行为和电导率的快速准确测量。测量的κ数据遵循阿克里尼乌斯定律，从该定律确定导电的激活能（Ea）。EMIC-AlCl_3离子液体的电导率随着XAl的增加而降低。XAl= 0.6的EMIC-AlCl 3在383 K时具有较高的κ（5.58 S m-1）和最低的Ea（4.25 KJ mol-1）。基于热力学计算，电导率的差异归因于阴离子浓度的相互作用，分子结构，阳离子-阴离子相互作用，和氢键的IL。
The conductivity (κ) of ionic liquid (IL) comprising a melt of 1-ethyl-3-methylimidazolium chloride (EMIC) and aluminum chloride (AlCl3) with different AlCl3 mole fractions (XAl) and temperatures (343-383 K) are reported. XAl values of 0.6, 0.643, and 0.667 in EMIC-AlCl3 IL are selected to maintain the desired Lewis acidity. Precise and fast conductivity measurements and the behavior of anion species in IL are studied using electrochemical impedance spectroscopy (EIS). The measured κ data followed the Arrhenius law from which the activation energies (Ea) of conduction are determined. The conductivity of EMIC-AlCl3 IL decreased with the higher XAl. EMIC-AlCl3 with XAl= 0.6 exhibited higher κ (5.58 S m–1) at 383 K and lowest Ea (4.25 KJ mol–1) among studied compositions. Based on the thermodynamic calculations, the differences in conductivities are attributed to the interplay of anion concentration, the molecular structure, cationanion interactions, and hydrogen bonds in the IL.