无模板电化学组装聚羟基化3,4-乙烯二氧噻吩纳米结构的影响因素初探  

Research on Template-Free Electrochemical Assembling of Poly(3,4-Ethylene Dioxythiophene) Nanodots

作　　者：潘齐超 陈震东[1] 张亚琼[1] 朱波[1] 

机构地区：[1]东华大学材料科学与工程学院,纤维材料改性国家重点实验室,上海201620

出　　处：《材料开发与应用》2016年第2期65-70,共6页Development and Application of Materials

基　　金：国家自然科学基金面上项目(21474014)

摘　　要：采用无模板电化学沉积方法制备了具有纳米点形貌的聚羟基化3,4-乙烯二氧噻吩(PEDOT-OH),并系统地研究了氧化电势、聚合时间、对电极与工作电极之间距离等因素对PEDOT-OH纳米结构和形貌的影响。研究发现,随着聚合时间的延长、氧化电势的增加,纳米点的尺寸增加;相反则降低。通过进一步研究具有纳米结构的PEDOT-OH的表面性质和阴极电荷储存能力,发现随着纳米点尺寸的增大,样品表面的亲水性变好,拥有纳米结构的PEDOT-OH的均一化阴极电荷储存能力要明显优于表面平滑的样品。Nanodots of poly（ hydroxyl-functionalized EDOT） （PEDOT-OH） were fabricated via a template-free electrochemical as- sembly at a constant potential. The effects of oxidation potential, deposition time, distance between counter electrode and the working electrode on the structures and morphologies of PEDOT-OH nanodots were further investigated. It is clarified that the sizes of PEDOT dots increase with the increase of the deposition time and oxidation potential ,but decrease otherwise. Among them, the deposition time plays a more crucial role on the PEDOT-OH morphology. The hydrophilieity of PEDOT-OH substrate is enhanced sharply as the dot size increases from nanometer to micrometer. It is further demonstrated that the normalized cathode charge stor- age capability （CSCc） for the nanodot PEDOT-OH is 2--3 times higher than that of smooth PEDOT-OH.

关 键 词：聚羟基化3 4-乙烯二氧噻吩 电化学组装 电荷储存能力 纳米点 

分 类 号：O631[理学—高分子化学]