Abstract：
Potentiostatic, galvanostatic and potentiostatic pulse methods were used to prepare polyaniline film in acidic solution of aniline respectively. The growth process of the polyaniline on the electrode was characterized by electrochemical impedance spectroscopy (EIS) and scanning electron microscopy (SEM). The results show that the initial polymerization of polyaniline is three-dimensional instantaneous nucleation dominated by electrochemical kinetics and the whole process is divided into five periods, including nucleation induction, electrochemically-controlled instantaneous nucleation, diffusioncontrolled instantaneous nucleation, 1-D radial continuous nucleation, 1-D axial continuous nucleation. The nucleation and growth process of polyaniline is divided into three stages: the formation of the spherical particle, network nanofiber and nanorod structure.
ZHANG Wei-Guo, SHANG Wei-Zheng, LI Xiang, WANG Hong-Zhi, YAO Su-Wei.Growth Process of Polyaniline Film Prepared by Electrochemical Reaction[J]. Chemcial Industry and Engineering, 2014,31(4): 31-35
2014, Vol. 31 
