ABSTRACT
Conjugated polymers (CP) in doped form have been used as energy storing materials in electrochemical capacitors due to their large pseudocapacitances. Electropolymerization is an important technique to prepare CP-based capacitors which control the thickness and morphology of CP nanomaterials. Electrochemical impedance spectroscopy is a powerful technique to study charge transfer, ion diffusion, and capacitance of CP-modified electrodes. High-surface carbon materials have been considered as electrode materials for electrochemical capacitor cells. CP-based capacitor can store charges in its whole volume, so it can reach a much higher specific charge density in comparison to carbon materials. The electrode fabrication method as well as the effect of a small amount of CPs on the capacitance values was electrochemically evaluated. Electrosynthesized polyaniline nanocomposites were studied indicating high specific capacitances due to the combination of the capacitances of both components.
