高等学校化学学报2017，Vol.38Issue(4)：694-700,7.DOI:10.7503/cjcu20160636
石墨烯-ITO复合电极对聚苯胺薄膜电致变色性质的影响
Electrochromic Properties of Polyaniline Films on Graphene-ITO Composite Electrode
摘要
Abstract
Graphene oxide(GO) aqueous solution was synthesized by modified Hummers method.Graphites reacted with concentrated sulfuric acid, potassium persulfate and phosphorus pentoxide to get strong oxidized products, then reacted with concentrated sulfuric acid, sodium nitrate and potassium permanganate.GO solution was obtained through the foaming of hydrogen peroxide, pickling and ultrasonic.After the reduction of metal copper and substrate transformation process, GO-indium tin oxide(ITO) composite electrode was prepared.Then, polyaniline(PANI) film was prepared on the composite electrode by electropolymerization technique and further characterized.Compared to that on ITO electrode, PANI film on GO-ITO composite electrode showed a more homogeneous and uniform nanoparticle morphology and better film-forming character, providing larger interface area between the polymer and electrolyte and more transport channel for counterions.The result showed that PANI film exhibited higher optical contrast with increasing by 13% at 700 nm, faster switching speed with reducing by 2.6 s, high coloration efficiency of 169.6 cm2/C and still remained the original good electrochemical stability.In summary, GO-ITO composite electrode can effectively improve electrochromic performance, endowing the potential applications on electrochromic materials and devices.关键词
电致变色/聚苯胺/石墨烯/复合电极/电化学聚合Key words
Electrochromism/Polyaniline/Graphene/Composite electrode/Electropolymerization分类
化学化工引用本文复制引用
吕晓静,于朋飞,欧阳密,钱亮,闫拴马,金晓强,张诚..石墨烯-ITO复合电极对聚苯胺薄膜电致变色性质的影响[J].高等学校化学学报,2017,38(4):694-700,7.基金项目
国家自然科学基金(批准号:51673174,51573165)、浙江省自然科学基金(批准号:LY15E030006)和浙江工业大学校基金重点项目(批准号:1401101002408)资助.Supported by the National Natural Science Foundation of China(Nos.51673174,51573165), the Natural Science Foundation of Zhejiang Province, China(No.LY15E030006) and the Natural Science Foundation of Zhejiang University of Technology, China(No.1401101002408). （批准号:51673174,51573165）
