交流阻抗法测量丙烯腈电化学二聚反应电极微分电容

The Measurement of Differential Capacity of Acrylonitrile Aqueous Electrochemistry Dimerization Reaction by AC Impedance Method

运用交流阻抗数据的不同处理方法 ,对模拟电解池的阻抗数据进行对比分析 ,发现复数平面图法对于取得重要的电极参数微分电容准确度较高 ,较适合无浓差极化条件下的交流阻抗数据处理工作。

Impedance data obtained from equivalent electrical circuit model is analyzed by various AC impedance analysis methods. Some factors are outlined. Nyquist plot has higher accuracy for calculating differential capacity and are more suitable for AC impedance data processing under the condition of no concentration polarization. Furthermore this data processing method is applied to measure differential capacity of GC electrode in acrylonitrile (AN) aqueous solution.