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Investigation of the Supercapacitive Performance of Modified Carbon Nanotube Materials by 1-Methyl-3-Octadecylimidazolium Bromide Ionic Liquid
Published: 31 October 2013 by MDPI in The 17th International Electronic Conference on Synthetic Organic Chemistry session Ionic Liquids
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