Abstract
Sulphonated polysulphone (SPS) has been synthesized and subsequently applied as binder for graphene oxide (GO)-based electrodes for development of electrochemical supercapacitors. Electrochemical performance of the electrode was investigated using cyclic voltammetry in 1M Na<sub>2</sub>SO<sub>4</sub> and 1M KOH solution. The fabricated supercapacitors gave a specific capacitance of 161.6 and 216.8 F/g with 215.4 W/kg and 450 W/kg of power density, in 1M Na<sub>2</sub>SO<sub>4</sub> and 1M KOH solutions, respectively. This suggests that KOH is a better electrolyte than Na<sub>2</sub>SO<sub>4</sub> for studying the electrochemical behavior of electroactive material, and also suggests SPS is a good binder for fabrication of a GO based electrode.
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