Electrodeposition of TiO2-polyaniline nano composite films
To obtain uniform morphologies and crystal fine TiO2-polyaniline nano composite films, electrodeposition technology was used to prepare the composite films and to investigate the effects of deposition conditions. The optimum operation conditions with deposition potential of- 1.5V(VS SCE) , deposition pH of 1.5 ~2.0 and deposition time of 1 300 s were determined by the experiment. The samples were characterized by electrochemical method, scanning electron microscope and thermal analysis. The results show that the deposition film thickness increases with the decreasing of redox peak current. For different substrates, the composite film morphologies are significantly different. The SEM images reveal that aniline molecules in deposition solution have remarkable effect on the electrodeposition reaction, the size and the morphology of composite films. Adding small molecules of aniline in the solution is beneficial for the forming of fine crystal TiO2 -polyaniline nanocomposite film.
国家科技期刊平台
NSTL
万方数据
维普
