聚苯胺电极过程研究

A STUDY ON ELECTRODE PROCESS OF POLYANILINE

对聚苯胺电极在恒电流阶跃下电极电位随时间的变化曲线进行模拟。通过分析聚苯胺电极过租建立了物理模型,并经过数学抽象推导出电极过程的定量关系。用拟线性化方法时方程求解并进行参数估计,得到了离子在聚苯胺膜中的扩散系数。实验结果和理论计算较好地吻合。

The simulation of the curve of potential of the polyaniline electrode varying with time was performed under the condition of constant Current step. The physical model which characterizes the process of the polyaniline electrode and the quantitative relationship of parameters of this electrode process were deduced by mathematical analysis. The solution of the equation and estimation of the parameters were carried out by the quasilinearization method. The coefficient of ionic diffusion whithin the polyaniline film was found and the result of the theoretic calculation is in good agreement with those of experiments.