电化学实验教学中极化曲线的测量与应用  

Measurement and Application of Polarization Curves in the Electrochemical Experimental Teaching

作　　者：杨余芳[1] YANG Yu-fang(Ceramic Institute,Hanshan Normal University,Chaozhou,Guangdong 521041,China)

机构地区：[1]韩山师范学院陶瓷学院,广东潮州521041

出　　处：《教育教学论坛》2017年第7期276-278,共3页Education And Teaching Forum

基　　金：韩山师范学院科研启动项目(项目编号:QD20150320)

摘　　要：采用三价铬溶液体系,设计了线性扫描伏安法实验。介绍了极化曲线的测定和实验数据的处理方法,确定了三价铬还原的活化能、交换电流密度和电子交换系数。阐明了极化曲线的作用及其与电化学反应活化能、动力学参数的关系。The linear sweep voltammetry experiments were designed in the trivalent chromium solution. The determination of polarization curves and the processing methods of experimental data were introduced.The activation energy,the exchange current density and the electron exchange coefficient of trivalent chromium reduction were determined.The role of the polarization curves and its relationship between the electrochemical activation energy and the kinetic parameters were explained.

关 键 词：极化曲线 线性扫描 电化学实验 

分 类 号：O646.54[理学—物理化学]