Abstract:

Polymerization of aniline on carbon nanotube/nanocrystalline TiO₂（CNT/nanoTiO2）film electrode performed in 0.5 mol·L^-1 sulfuric acid including 0.2 mol·L-1 aniline with scanning voltage -0.1V—0.9V at scanning rate 50 mV·s^-1.

The electrochemical properties and structure of carbon nanotube/nanocrystalline TiO₂-polyaniline（CNT/nanoTiO₂-PAn）complex film were characterized with cyclic voltammetry（CV）;electrochemical impedance spectra（EIS）;SEM and IR spectra.In addition;electrocatalytic performance of the complex film electrode was investigated for oxidation of ascorbic acid（AH₂）.It was found that the complex film electrode exhibited excellent catalytic activity toward the electrooxidation of ascorbic acid.