中文摘要：

通过机械活化的方法制备了黄铁矿粉末,以黄铁矿粉末微电极为工作电极,无水乙醇为电解液,加入适量阳离子表面活性剂（十六烷基氯化吡啶）作为离子导体,采用循环伏安法比较研究了机械活化黄铁矿粉末与未机械活化黄铁矿粉末在无水乙醇中的电化学行为。根据Nernst方程,对黄铁矿电极反应的可逆性进行了讨论 通过数值分析法解Fick第二定律,得出循环伏安曲线峰电流、峰电势、半峰电势等参数的关系,对黄铁矿电极在有机电解液中的液相传质过程进行了论证。

英文摘要：

Pyrite powder was prepared by mechanical activation.By adopting pyrite powder microelectrode as working electrode,the electrochemical behavior of pyrite powder under mechanical activation in absolute ethyl alcohol was studied through cyclic voltammetry.Proper amount of cationic surfactant,such as cetylpyridinium chloride,is added as ion conductor in the experiment.Based on the Nernst equation,reversibility of pyrite powder microelectrode was discussed.The relations of peak current,peak potential and semi peak potential was obtained by Numerical Analysis for Fick＇s Second Law,and liquid phase of pyrite powder microelectrode in organic electrolyte was argument.