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

Chemical Research in Chinese Universities ›› 2011, Vol. 27 ›› Issue (5): 870-874.

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

CUI Kun, DING Guang-zhu, CHEN Shi-fu and LIU Jie-ping*

College of Chemistry and Materials Science, Huaibei Normal University, Huaibei 235000, P. R. China

Received:2010-12-06 Revised:2011-03-28 Online:2011-09-25 Published:2011-09-06
Contact: LIU Jie-ping E-mail:jpliu@chnu.edu.cn
Supported by:
Supported by the National Natural Science Foundation of China(No.51073064) and the Science Foundation of Anhui Pro- vince, China(No.090414192).

Abstract

Abstract: 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.

Key words: p-NiO/n-TiO2/polyaniline composite, Synthesis, Characterization, p-n Junction, Electrochemical property

CUI Kun, DING Guang-zhu, CHEN Shi-fu and LIU Jie-ping*. Synthesis, Characterization and Electrochemical Behavior of p-NiO/n-TiO₂/Polyaniline Composites[J]. Chemical Research in Chinese Universities, 2011, 27(5): 870-874.

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

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