이온성 액체 1-ethyl-3-methylimidazolium Tetrafluoroborate의 정제 최적화 조건에 따른 특성 변화 분석 연구 = The Analytical Study on Synthesis and Optimization of Purification of Ionic Liquid, 1-ethyl-3-methylimidazolium Tetrafluoroborate

다국어 초록 (Multilingual Abstract)

In this study, the ionic liquid 1-ethyl-3-methylimidazolium tetraflouroborate (EMI-BF4) was synthesized and purified using the liquid/liquid fractional distillation method to apply a supercapacitor. EMI-BF4 was extracted with dichloromethane from the liquid/liquid extraction method in acidic, neutral, and alkali conditions for removal of impurity, and then the electrical capacities of the purified ionic liquids were measured and compared. The electrical capacities of ionic liquids under acidic condition showed higher value than those of neutral or alkali conditions. As the ratio of ionic liquid to solvent became higher, the electrical capacity value was increased.

참고문헌 (Reference)

1 P. J. Dyson, "Transition Metal Chemistry in Ionic Liquids" 27 : 353-358, 2002

2 Z. B. Zhou, "Structure and Properties of New Ionic Liquids Based on Alkyl and Alkenyltrifluoroborates" 6 (6): 1324-1332, 2005

3 H. Matsumoto, "Room Temperature Ionic Liquids Based on Small Aliphatic Ammonium Cations and Asymmetric Amide Anions" 43 : 1726-1727, 2002

4 S. Zhang, "Ionic Liquids Physicochemical Properties" Elsevier 2008

5 A. Yoshida, "Electric Double Layer Capacitor and Method for Producing the Same"

6 A. Nishino, "Electric Double Layer Capacitor"

7 J. S. Wilkes, "Dialkylimidazolium Chloroaluminate Melts: A New Class of Room-Temperature Ionic Liquids for Electrochemistry, Spectroscopy and Synthesis" 21 (21): 1263-1264, 1982

8 H. Sakaebe, "Application of Room Temperature Ionic Liquids to Li Batteries" 53 : 1048-1054, 2007

9 J. S. Wilkes, "Air and Water Stable 1- ethyl-3-methylimidazolium Based Ionic Liquids" 13 : 965-967, 1992

10 D. L. Boos, "A 3 Cubic Inch 200,000 Microfarad. Capacitor" 33 : 10-12, 1971