Abstract
It has been demonstrated that, due to the heterogeneity of the surface of anodized graphite foil (AGF), the adsorption of the aniline monomer (An) occurs on active oxygen-containing sites. The latter results in its oxidation, dimerization, and oligomerization and growth of rodlike polyaniline (PAni) structures. Further electrosynthesis (ES) of PAni has produced a two-phase coating including the above-mentioned rodlike structures and regular polyaniline bodies of a granular structure. Cycling of electrodes with such coating in the expanded area of anode potentials (up to 0.8–0.9 V) leads to the formation of a homogeneous coating. The electrodes processed in this way have appeared to be highly stable at storing and conducting a large number of charge–discharge cycles.
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