研究了聚苯胺 ( PAn)膜电极在 2 ,5-二巯基 -1 ,3 ,4 -噻二唑 ( DMc T)溶液中电化学处理或浸泡后的循环伏安 ( CV)曲线的变化规律 .实验结果表明 ,PAn膜电极在 DMc T溶液中进行电化学处理或浸泡过程可使DMc T进入 PAn膜内部与 PAn形成复合物 .PAn对 DMc T的电化学催化作用可能和二者之间形成的电子给体 -受体复合物有关 .该复合物的电化学氧化还原特性不同于 PAn和 DMc T,其氧化还原反应速率和可逆性均优于 DMc T The cyclic voltammetry (CV) curves of polyaniline (PAn) membrane electrode treated with 2, 5 - dimercapto - 1, 3, 4 - thiadiazole (DMcT) were studied. The experimental results show that the electrochemical treatment or immersion process of PAn membrane electrode in DMc T solution can cause DMc T to enter PAn membrane and form a complex with PAn.The electrochemical catalytic effect of PAn on DMc T may be related to the formation of Electron donor-acceptor complex.The electrochemical redox properties of the complex are different from those of PAn and DMcT, and their redox reaction rates and reversibility are better than DMc T