Striking capacitance of carbon/iodide interface

a b s t r a c t Exceptional electrochemical behavior of carbon/iodide interface has been demonstrated and successfully used in supercapacitor application. This efficient charge storage is based on specific sorption of iodide ions as well as stable reversible redox reactions connected with various possible oxidation states of iodine from -1 to +5. An intriguing effect of iodide ions has been…