摘要
采用乙腈－高氯酸水溶液电解体系，其ｐＨ＝１及０．５～０．６Ｖ恒电位电解聚合，得到了均匀、绿色、有光泽、导电率为１０＾－１ｓ．ｃｍ＾－１的聚苯胺导电膜。研究了掺杂剂、苯胺浓度、ｐＨ值和电解电位等对膜的导电率、成膜质量及电致变色反应的影响。采用循环伏安方法研究了显色反应机理，并确定ＨＣｌＯ４为最佳掺杂剂。当施加－０．２～０．８Ｖ电压时，实现了黄－绿－蓝色的可逆电致变色反应。
Highly conducting polyaniline film is obtained by controlled-potential electrolyze at 0.5-0.6 V (vs.SCE) with Ni electrode (2.0 cm×3.0 cm). Doping agent, aniline concentrations, PH, electrolytic voltage are studied in detail. The best doping agent is HClO4, and the electrolytic system is CH3CN, HClO4, H2O system. Mechanism of electrochromic reaction is investigated by cyclic voltammetry at (0.2 - 0.8 V. The electrochromic region is yellow-green-blue and the conductivity of the film is 10-1s·cm-1.
出处
《电子科技大学学报》
EI
CAS
CSCD
北大核心
2000年第6期669-672,共4页
Journal of University of Electronic Science and Technology of China
关键词
聚苯胺
电致变色机量
导电膜
电致显色材料
polyaniline
perchloric acid
controlled potential electrolyze
cyclic voltammetry
electrochromic reactioH
