Electrochemical Behavior Study of Copolymer (PANI/PEDOT: PSS) for Application in Supercapacitors

The aims of this work is to study the electrochemical behavior of the copolymer PANI/PEDOT: PSS by electrochemical technics to apply in supercapacitors. Polyaniline (PANI) is a conductive polymer it was synthesized by electrochemical polymerization. It exhibits very stable properties in different environments. PEDOT: PSS is a conductive polymer based on poly(3,4-ethylenedioxythiophene) (PEDOT) and poly (styrene sulfonate) (PSS). It is commonly used with polyaniline to improve its electrical conductivity several physico-chemical and electrochemical technics were used for the characterization PANI/PEDOT: PSS: cyclic voltammetry (VC), electrochemical impedance spectroscopy (EIS), open circuit potential, SEM, Xray diffraction…etc. The results showed that the PANI/PEDOT: PSS composite is a promising material for supercapacitors due to its high electrical conductivity and high porosity. Electrochemical and physicochemical characterization tests have shown that the composite has high electrical and structural performances, making it a material of choice for high-performance energy storage applications.