Acta Chimica Sinica ›› 2005, Vol. 63 ›› Issue (20): 1884-1888. Previous Articles     Next Articles

Original Articles



  1. (1中国科学院上海硅酸盐研究所 特种无机材料研究发展中心 上海 200050)
    (2中国科学院研究生院 北京 100080)
  • 投稿日期:2005-03-03 修回日期:2005-06-24 发布日期:2010-12-10
  • 通讯作者: 章俞之

Study on Preparation and Performance of Electrochromic Mesoporous Tungsten Trioxide Films

YUAN Jia-Guo1,2, ZHANG Yu-Zhi*,1, LE Jun1, SONG Li-Xin1, HU Xing-Fang1   

  1. (1 Research and Development Center for Special Inorganic Materials, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050)
    (2 Graduate School of the Chinese Academy of Sciences, Beijing 100080)
  • Received:2005-03-03 Revised:2005-06-24 Published:2010-12-10
  • Contact: ZHANG Yu-Zhi

The preparation of mesoporous WO3 films was carried out by involving of a new nonionic gemini surfactant structure-directing agent. The mesostructured WO3 films exhibit tridimensional vermicular mesopores, as demonstrated by SAXRD, TEM and N2 sorption techniques. Compared with the non-templated analogue, the mesoporous tungsten trioxide films possess large specific surface area, along with improved electrochemical and electrochromic performances, whose transmittance modulation reached over 60% and coloration efficiency was up to 51.7 cm2•C-1 at the wavelength of 633 nm.

Key words: mesoporous, tungsten trioxide film, cyclic voltammetry, electrochromic