Ying Sing Fungand Ruqi Zhou, Physical and Electrochemical Properties of Acid 1-Methyl-3-Ethylimidazolium Chloride/AlCl3/LiAlCl4Molten Salt, J. Univ. Sci. Technol. Beijing, 7(2000), No. 4, pp. 286-291.
Cite this article as:
Ying Sing Fungand Ruqi Zhou, Physical and Electrochemical Properties of Acid 1-Methyl-3-Ethylimidazolium Chloride/AlCl3/LiAlCl4Molten Salt, J. Univ. Sci. Technol. Beijing, 7(2000), No. 4, pp. 286-291.
Ying Sing Fungand Ruqi Zhou, Physical and Electrochemical Properties of Acid 1-Methyl-3-Ethylimidazolium Chloride/AlCl3/LiAlCl4Molten Salt, J. Univ. Sci. Technol. Beijing, 7(2000), No. 4, pp. 286-291.
Citation:
Ying Sing Fungand Ruqi Zhou, Physical and Electrochemical Properties of Acid 1-Methyl-3-Ethylimidazolium Chloride/AlCl3/LiAlCl4Molten Salt, J. Univ. Sci. Technol. Beijing, 7(2000), No. 4, pp. 286-291.
Department of Chemistry, The University of Hong Kong, Hong Kong, China
Department of Inorganic and Non-metal Materials, University of Science and Technology Beijing, Beijing 100083, China
中文摘要
An acid molten salt was formed by means of mixing 1-methyl-3-ethylimidazolium chloride with AlCl3 and LiAlCl4 at ambient temperature. The solubility of LiAlCl4 in the acid molten salt was measured. Variations of specific conductivity, density and kinetic viscosity of molten salt with mole ratio of MeEtlmCl/AlCl3/LiAlCl4 were observed. A solubility maximum of LiAlCl4 with 54% in molar fraction was shown at a mole ratio of AlCl3/MeEtlmCl = 1.2. An increase in density and viscosity, and a decrease in specific conductivity were found with increasing the concentrations of LiAlCl4 and AlCl3. The dependence of specific conductivity of this acid molten salt upon temperature was found to display Vogel-Tammanm-Fucher behavior. However, Arrhenius behavior was observed at two special mole ratios of MeEtImCl/AlCl3/LiAlCl4 = 1:1.5:0.05 and 1. 1.5:0. 10. The conductivity equations of this molten salt at various compositions were constructed. The ion interaction in the acid molten salt was studied using 7Li and 27Al nuclear magnetic resonance spectroscopic methods. The effect of concentrations of LiAlCl4 and AlCl3 on the ion interaction was also discussed.
An acid molten salt was formed by means of mixing 1-methyl-3-ethylimidazolium chloride with AlCl3 and LiAlCl4 at ambient temperature. The solubility of LiAlCl4 in the acid molten salt was measured. Variations of specific conductivity, density and kinetic viscosity of molten salt with mole ratio of MeEtlmCl/AlCl3/LiAlCl4 were observed. A solubility maximum of LiAlCl4 with 54% in molar fraction was shown at a mole ratio of AlCl3/MeEtlmCl = 1.2. An increase in density and viscosity, and a decrease in specific conductivity were found with increasing the concentrations of LiAlCl4 and AlCl3. The dependence of specific conductivity of this acid molten salt upon temperature was found to display Vogel-Tammanm-Fucher behavior. However, Arrhenius behavior was observed at two special mole ratios of MeEtImCl/AlCl3/LiAlCl4 = 1:1.5:0.05 and 1. 1.5:0. 10. The conductivity equations of this molten salt at various compositions were constructed. The ion interaction in the acid molten salt was studied using 7Li and 27Al nuclear magnetic resonance spectroscopic methods. The effect of concentrations of LiAlCl4 and AlCl3 on the ion interaction was also discussed.
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