Influence of synthesis conditions on the morphology of perchlorate doped polyfuran films

Abstract

Polyfuran films doped with perchlorate anions (PFu/Cl04) were studied by scanning and transmission electron microscopies under different synthesis conditions. However, an electropolymerization overpotential equal to at least 2.1 V was needed to obtain stable PFu/ClO4 films. In the synthesis conditions analysed, the film growth face presented an ordered nodular structure oriented 45° with respect to the lengthwise axis of the electrode. The nodule size and film rugosity were affected by the ratios between furan and NaClO4 concentrations. When the furan concentration was double that of perchlorate, the films were less rough and more homogeneous.