Electrochemical behaviour of stand-alone polyaniline–poly(vinyl alcohol) composite films

Abstract

In this report, we investigate the electrochemical capacitance and redox behaviour of a stand-alone polyaniline–poly(vinyl alcohol) composite film cast on an insulating substrate (normal printer paper) and compared it with an electrochemically synthesized composite film deposited on a gold electrode. The stand-alone composite film showed timescale-dependent, wide range charging–discharging redox cycling and high electrochemical capacitance in potentiodynamic electrochemical experiments carried out in 1 M HCl solution.