Cyclic Voltammetry and Conductivity Studies of Polyaniline with Different Supporting Electrolytes

The cyclic voltammograms of polyaniline films prepared electrochemically in the aqueous solution of sulfosalicylic acid, naphthalene -2- sulfonic acid, anthraquinone-2- sulfonic acid and polyacrylic acid were examined in the range of -0.2V to 1.0VvsSCE in the presence and absence of aniline. The multiple cycled voltammograms were recorded with a number of potential scans indicating that the conducting film formed and the thickness increased with potential cycles. The multiple cycled voltammograms confirm that the film is fairly stable without any severe film degradation. The conductivities of polyaniline films prepared at a constant potential electrolysis at +0.85Vvs SCE on a platinum anode in the aqueous solution of aniline with different electrolytes were determined.