Synthesis, Characterization and Electrochemical Behavior of p-NiO/n-TiO2/Polyaniline Composites

• 作 者: CUI Kun DING Guang-zhu CHEN Shi-fu LIU Jie-ping
• 机 构: College of Chemistry and Materials Science, Huaibei Normal University, Huaibei 235000, P. R. China
• 出 处: 高等学校化学研究（英文版）
• 发表日期: 2011年5期
• 关键词: p-NiO/n-TiO2/polyaniline composite Synthesis Characterization p-n Junction Elect

The p-NiO/n-TiO2/polyaniline composites were synthesized via in situ polymerization of aniline.The structure and morphology of the composites were characterized by means of X-ray diffraction(XRD),scanning electron microscopy(SEM),Fourier transform infrared spectroscopy(FTIR) and UV-Vis absorption spectroscopy It was found that the p-n junction p-NiO/n-TiO2 particles were trapped in the polyaniline molecular matrix and the polyaniline was deposited on the surface of the particles to form a kind of flower cluster morphologies.The electrochemical behavior of the polyaniline composites was investigated.The electrochemical reactivity of the polyaniline was influenced by the p-NiO/n-TiO2 particles due to the effect of electron-hole pairs in these p-n junction particles.The reversibility of redox process and current intensity of the polyaniline composites with the changing of potential scan rate were also discussed.