BMIMPF_6-有机溶剂对聚噻吩电化学性能的影响  

Effect of solvent's property of BMIMPF_6/organic solvent mixture on electrochemical capacity of polythiophene film

作　　者：徐立群[1] 王荣[1] 闫晓慧[1] 李冬梅[1] 曹晓卫[1] 吴霞琴[1] 

机构地区：[1]上海师范大学化学系,上海200234

出　　处：《化学研究与应用》2009年第2期175-179,共5页Chemical Research and Application

基　　金：国家自然科学基金(20503016)资助;上海市科委启明星基金(07QA14044)资助;湖南大学生物传感与计量学国家重点实验室开放基金资助

摘　　要：实验测试了纯离子液体BMIMPF6、BMIMPF6-乙腈、BMIMPF6-碳酸丙二醇脂混合体系的粘度和电导率。应用循环伏安法在玻碳电极表面合成了聚噻吩,并测试了聚噻吩修饰电极在上述各溶液中的电化学行为。结果表明,聚噻吩在纯离子液体中的惨杂电量较小,电化学反应的可逆性较差。聚噻吩的氧化参杂电量与混合溶液的电导率呈明显的线性关系,当离子液体的体积含量为25%时,溶液的电导率达到最大,同时聚噻吩惨杂电量也达到最大,反应可逆也得到了明显的改善。The polythiophene film was prepared by electropolymerization at glass carbon（ GC ）electrode using cyclic voltammetry and the electrochemical behavior of polythiophene film in neat ionic liquid BMIMPF6 . BMIMPF6/acetonitrile （ACN）and BMIMPF6/ propylene carbonate（PC） mixtures was measured. The viscosities and conductivities of the mixtures were also investigated. Results showed that the electrochemical capacity of polythiophene linearly increased with the increasing of the solution conductivity. The maximum electrochemical capacity of polythiophene film were observed in BMIMPF6/ACN（25/75v/v ）mixture ,which is about 7 times greater than that observed in neat BMIMPF6.

关 键 词：离子液体 聚噻吩 导电率 电容器 

分 类 号：O633.5[理学—高分子化学]