聚苯胺纳米线薄膜电极的模板组装  

Construction of Polyaniline Nanowire Thin Film Electrodes with Porous Anodic Alumina as Template

作　　者：徐国荣[1] 任凤莲[2] 司士辉[2] 

机构地区：[1]湖南科技大学化学化工学院,湘潭411201 [2]中南大学化学化工学院,长沙

出　　处：《应用化学》2008年第4期391-395,共5页Chinese Journal of Applied Chemistry

基　　金：国家自科基金资助项目(20475065)

摘　　要：研究了一种基于阳极氧化铝模板电化学制备聚苯胺纳米线薄膜电极的方法。阳极氧化铝模板经电化学去阻挡层，直流电沉积一层镍作催化层后，用恒电位方法合成了聚苯胺（PANI）纳米线薄膜电极。结果表明，PAA中苯胺聚合适宜的pH值为2—3，临界聚合电位0．1V（vs Hg／Hg2SO4）。扫描电子显微镜表明，制备的PANI纳米线的直径大约22nm，呈较规则直立状。充放电实验结果表明，聚苯胺纳米线薄膜电极的放电容量大于本体聚苯胺薄膜电极的放电容量。Polyaniline nanowires thin film electrodes were fabricated with porous anodic alumina （PAA） as template by electrochemical method. Prior to electro polymerization of aniline, the barrier layer of PAA was dissolved by electrolyzing a neutral potassium chloride solution with PAA as cathode, and a layer of nickel was deposited on PAA, which was used as catalyst. The results obtained show that the proper pH values are in a range of 2 - 3 for polymerization of aniline, and the critical polymerization potential of potentiostatic method is 0. 1 V（vs Hg/Hg2SO4）. The SEM observations demonstrate that the diameter of the nanowires was about 22 nm, with an ordered distribution. Charging-discharging curves show the polyaniline nanowires thin film electrode has a higher discharge capacity than PANI thin film electrode.

关 键 词：多孔阳极氧化铝模板 聚苯胺纳米线 薄膜电极 

分 类 号：O633.2[理学—高分子化学] TQ246.3[理学—化学]