Influence of current collector on capacitive behavior and cycling stability of Tiron doped polypyrrole electrodes

In this work we demonstrate the feasibility of electrodeposition of adherent polypyrrole (PPy) films on Ni substrates using Tiron as an anionic dopant. Compared to other aromatic sulfonate dopants, Tiron offers the advantages of higher charge to mass ratio and chelating properties, which are beneficial for the efficient charge transfer during electropolymerization and fabrication of adherent films. The use of Ni plaque current collectors allows …