Figure 4: Cyclic voltammograms for LbL films from (a) (PANI-PA/PVS)6 and (b) (PANI-PA/CG)6 after five and twenty (5th cycle —⬤— and 20th cycle —◯—) successive cycles in 0.1 mol L−1 HCl solution, at 50 mV s−1.