Phosphonium-based ionic liquids as electrolyte for supercapacitors

Over the last several years ionic liquids based on phosphorus salts have been attractive as the subject of many investigations for a myriad of applications in different fields, in particular, in batteries and supercapacitors. We focused on the applications of phosphorous-based ionic liquids as electrolyte for supercapacitors. Conductivity of synthesized tri(tert-butyl)(decyl)phosphonium tetrafluoroborate was studied in carbon paste electrode composite . Cyclic voltammogram was obtained in CH3CN solution. Electrochemical properties, energy data and conductivity make the phosphonium ionic liquids particularly attractive as electrolytes for supercapacitors. [GRAPHICS] .