论文部分内容阅读
通过循环伏安法和旋转圆盘电极技术研究了聚 2 ,5 二甲氧基苯胺膜电极 (PDMA/Pt)和聚噻吩膜电极(PTH/Pt)对Sb3 +和Fe (CN) 4-6 离子的电催化行为 .在这两种导电聚合物膜电极上Sb3+和Fe (CN) 4-6离子的氧化还原电流比光铂电极大数倍至数十倍 ,氧化还原峰电位之差也比光铂电极明显地减小 .这些结果表明PDMA/Pt和PTH/Pt膜电极对Sb3+和Fe (CN) 4-6 离子具有良好电催化活性 .在电位扫速较低时膜电极上的电催化过程为扩散控制 ,在较高电位扫速下电极过程受催化反应速度控制 .讨论了影响催化反应活性的因素
The effects of poly (2, 5) dimethoxyaniline membrane electrode (PDMA / Pt) and polythiophene membrane electrode (PTH / Pt) on the formation of Sb3 + and Fe (CN) 4-6 were studied by cyclic voltammetry Ion electrocatalytic behavior of the two conductive polymer film electrode Sb3 and Fe (CN) 4-6 ion redox current photophoto electrode several times to several times the redox peak potential difference than The results show that PDMA / Pt and PTH / Pt membrane electrodes have good electrocatalytic activity for Sb3 + and Fe (CN) 4-6 ions.When the potential sweep speed is low, the electrocatalysis on the membrane electrode The process is diffusion controlled and the electrode process is controlled by the catalytic reaction rate at higher potential sweep speed.The factors that affect the catalytic activity are discussed