Influence of dopants and carbon nanotubes on polypyrrole electropolymerization and capacitive behavior

In this work we demonstrate the feasibility of electropolymerization of polypyrrole (PPy) films on stainless steel substrates using alizarin red (AR) and anthraquinone-2-sulfonic acid sodium salt (AQ) as anionic dopants. The results indicate that AR offers the advantage of reduced electropolymerization potential. The comparison of experimental data for AR and AQ provides an insight into the influence of the dopant molecular structure on …