高等学校化学学报 ›› 2015, Vol. 36 ›› Issue (6): 1202-1207.doi: 10.7503/cjcu20150176

• 高分子化学 • 上一篇    下一篇

壳聚糖辅助制备WO3薄膜材料及其电致变色性能

刘树萍1,2(), 刘益春2, 王薇1   

  1. 1. 哈尔滨商业大学旅游烹饪学院, 化学中心, 哈尔滨 150076
    2. 东北师范大学物理学院, 紫外光发射材料与技术教育部重点实验室, 长春 130024
  • 收稿日期:2015-03-03 出版日期:2015-06-10 发布日期:2015-05-06
  • 作者简介:联系人简介: 刘树萍, 女, 博士, 讲师, 主要从事无机材料的制备及电致变色研究. E-mail:liusp201@163.com
  • 基金资助:
    国家自然科学基金(批准号: 21301041, 31201376)和哈尔滨商业大学博士科研启动项目(批准号: 12DW030)资助

Chitosan-assisted WO3 Ultrathin Film and Electrochromic Performance

LIU Shuping1,2,*(), LIU Yichun2, WANG Wei1   

  1. 1. Chemistry Center, College of Tourism and Cuisine, Harbin University of Commerce, Harbin 150076, China
    2. Key Laboratory for UV-Emitting Materials and Technology of Ministry of Education,Northeast Normal University, Changchun 130024, China
  • Received:2015-03-03 Online:2015-06-10 Published:2015-05-06
  • Contact: LIU Shuping E-mail:liusp201@163.com
  • Supported by:
    † Supported by the National Natural Science Foundation of China(Nos.21301041, 31201376) and the Harbin University of Commerce Doctor Start-up Fund Research of China(No.12DW030)

摘要:

以壳聚糖(CS)为辅助材料, 利用层层自组装方法(LbL)制备了WO3复合薄膜材料(CS/WO3). 采用紫外-可见吸收光谱(UV-Vis)、 扫描电子显微镜(SEM)和循环伏安扫描(CV)等手段对CS/WO3纳米复合材料的形貌和电化学性能进行了表征. 利用电化学和UV-Vis联机技术研究了复合材料的电致变色性能. 结果表明, 该复合材料呈现出从无色到蓝色的颜色调变, 其光反差可达48.0%, 着色效率为58.5 cm2/C, 着色与褪色时间分别为9.5和1.8 s.

关键词: 三氧化钨(WO3), 壳聚糖, 层层自组装, 电致变色性能, CS/WO3纳米复合薄膜

Abstract:

A nanocomposite material consisting of WO3 and chitosan(CS) was fabricated by layer-by-layer(LbL) method in which CS was used as the additional component. The morphology and electrochemical behavior of the composite film were investigated by UV-Vis spectra, scanning electron microscopy(SEM) and cyclic voltammograms(CV). The electrochromic properties of the film were performed by in situ UV-Vis spectroscopy and electrochemical station. The results showed that the composite film was found to switch from colorless to deep blue, with the optical contrast of 48.0% and coloration efficiency of 58.5 cm2/C. Furthermore, the switching times were 9.5 s for coloration and 1.8 s for bleaching. Obviously, chitosan plays an important role in enhancing electrochromic performance of WO3-based material.

Key words: WO3, Chitosan, Layer-by-layer, Electrochromic performance, CS/WO3 nanocomposite film

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