可逆体系中园盘微电极循环伏安法理论研究

用新的处理方法提出可逆体系微盘电极准稳态及快速循环伏安理论电流公式，新方程表示了微盘电极电流可分解成平面扩散与球面扩散传质两项之和，微盘电极上的电流特征取决于各种参数的改变。例如τ（）和ｖ。本文对微电极循环伏安法出现稳态、准稳态曲线及形成“滞后环”等原因及条件均从理论上作出解释，并进行了定量计算；文中对微电极快速循环伏安理论也有详细讨论。

Theory of Cyclic Voltammetry at Microdisk Electrode for Reversible Systems

By means of a new approach,the current equations of cyclic voltammetry whichdescribes two cases of quasi-steady-state and fast linear scan at microdisk electrode for reversiblesystem were presented and verified experimentally. It has been shown that the features of this currentessentially depend on the ration of,which is described in detail.ln extreme cases, the equationsare the same as those listed in literat ures for large plane and spherical electrodes.Using the quasi-steady-state equation,the causes and conditions for forming steady state,quasi-steady state andhysteresis current for linear sweep voltammetry are all explained and discussed.The width of the″hysteresis ring″is also calculated in this work.And the results are very satisfied with that obtainedexperimentally.