摘要
提出一种根据描述电化学阻抗的等效电路模型分析电化学阻抗测量数据的新方法。新方法包括采用无解析关系式的曲线?合,利用单纯形法和复形法进行目标函数的最优化,适合于阻抗数据分析的目标函数及便于计算机迭代的等效电路阻抗值的直接计算法。根据这一方法编制 B ASIC 程序,并在一些电化学体系上运行,得到较好的结果。
A new analytical method with computer curve fitting for electrochemical impedance data has been developed in this paper. The direct numerical method is used for computing impedance (or admittance)of var ious electrode equivalent circuits in the analytical procedure, The forma of objective functions suitable for analysis on the electrochemical impedance data have been discussed and an weighted objective function has been suggested. It has been shown that the results obtained from the method were reasonable in analysis on impedance data of some analogous and practical electrochemical system.
出处
《厦门大学学报（自然科学版）》
CAS
CSCD
北大核心
1989年第5期500-504,共5页
Journal of Xiamen University：Natural Science
基金
国家自然科学基金
关键词
电化学阻抗
计算机
拟合分析
Electrochemical impedance, Computer curve fitting
