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Investigation of the Supercapacitive Performance of Modified Carbon Nanotube Materials by 1-Methyl-3-Octadecylimidazolium Bromide Ionic Liquid
1 , * 1 , 1 , 2
1  Department of Chemistry, Surface Chemistry Research Laboratory, Iran University of Science and Technology, P.O. Box 16846-13114, Tehran, Iran
2  Department of Biology, Faculty of basic science, Shahed University, Tehran, Iran

Abstract: Supercapacitive properties of electrodes built from ionic liquid-Multi Walled carbon Nanotubes (MWNTs) gel electrodes have been investigated. IL/MWNTs gel was easily prepared by adding MWNTs into 1-methyl-3-octadecylimidazolium bromide ionic liquid aqueous solution, then the resulting gel deposited on Nickel foam by Electrophoretic deposition. Electrochemical characterizations were carried out by cyclicvoltammetery and impedance spectroscopy in 1M KOH aqueous solution at room temperature. The specific capacitance of this electrode (120 F/gr) was larger than those were reported for bare carbon nanotube electrodes, and pseudo faradic reactions have been detected.  
Keywords: Carbon Nanotubes, Room Temperature Ionic Liquids, Supercapacitors, Electrophoretic Deposition