多种掺杂剂对聚吡咯/碳毡电极的改性效果

• 作 者: 唐玉兰 贾崇振 刘军 李微
• 机 构: 辽河流域水污染防治研究院沈阳建筑大学市政与环境工程学院,
• 出 处: 化工新型材料
• 发表日期: 2016年11期
• 关键词: 电化学合成 复合电极 聚吡咯 掺杂剂

运用恒定电位法,在碳毡(Cff)表层聚合掺杂聚吡咯(Ppy)。通过电化学检测与扫描电镜(SEM)可知,对甲苯磺酸钠(NaPTS)/Ppy/Cff复合电极CV曲线出现一对氧化还原峰,表明其具有可逆性。SEM结果显示:NaPTS/Ppy/Cff电极表面附着的Ppy最为密集并呈分散状态分布,体现出NaPTS具备较好的活化性、分散性。综合对比,掺杂NaPTS复合电极的电导性能、阻抗较其他复合电极性能更优异。

Using constant potential method, polypyrrole (Ppy) was polymerized on the surface of carbon felt (Cff). Electrochemical detection and scanning electron microscopy (SEM) showed that a pair of redox peaks appeared on the CV curve of sodium p-toluenesulfonate (PPS) / Ppy / Cw composite electrode, indicating that it was reversible. The SEM results showed that the Ppy attached to the surface of NaPTS / Ppy / Cff electrode was the most dense and dispersed, which showed that NaPTS had better activation and dispersibility. Taken together, the conductivity and impedance of the doped NaPTS composite electrode are more excellent than those of other composite electrodes.