超微柱电极上一次导数循环伏安法

First Derivative Cyclic-Voltammetry at Ultramierocylinder Electrodes

本文提出一次导数循环伏安法理论,其电流、电位关系接近于对称峰形波,有益于提高方法的灵敏度和分辨率,可用于分析和电化学研究工作. 1 理论1.1 一次导数循环伏安法电流方程式利用文献方法解柱形扩散方程求得线性扫描氧化波和还原波方程式,再将其结果对t微分。

In this paper, the theory of first derivative cyclicvoltammetry at stationary ultrami-crocylinder electrodes is presented. The characters of the voltammogram curves are discussed. An experimental study was made with a JP3-1 type of oscillopolarograph at platinum wire ultra-microcylinder electrodes in K4Fe(CN)6 solution. The experimental results are in good agreement with the theory.