| 介孔氧化钨电色薄膜的制备与性能研究 |
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| 引用本文： | 袁嘉国,章俞之,乐军,宋力昕,胡行方.介孔氧化钨电色薄膜的制备与性能研究[J].化学学报,2005,63(20):1884-1888. |
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| 作者姓名： | 袁嘉国 章俞之 乐军 宋力昕 胡行方 |
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| 作者单位： | 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;中国科学院研究生院,北京,100080
2. 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 |
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| 基金项目： | 国家自然科学基金（No.5993204102）资助项目. |
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| 摘 要： | 采用一种新的非离子型gemini表面活性剂结构导向模板, 成功制备了介孔氧化钨薄膜. 通过SAXRD, TEM和N2吸附-脱附等方法考察薄膜的制备和微结构特性, 发现获得的产物具有三维蠕虫介孔结构, 比表面积可达145.5 m2• g－1. 测定了该薄膜在无水高氯酸锂/碳酸丙烯酯电解质溶液中的循环伏安和电致变色性能, 并与无模板薄膜进行了对比研究. 研究表明, 由于具有更大的电化学活性比表面, 纳米介孔氧化钨薄膜表现出增强的电色性能, 在633 nm波长处的透过率调制幅度可达60%以上, 着色效率为51.7 cm2•C－1.
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| 关 键 词： | 介孔 氧化钨薄膜 循环伏安 电致变色 |
| 收稿时间： | 2005-3-3 |
| 修稿时间： | 2005-6-24 |
Study on Preparation and Performance of Electrochromic Mesoporous Tungsten Trioxide Films |
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| YUAN Jia-Guo,ZHANG Yu-Zhi,LE Jun,SONG Li-Xin,HU Xing-Fang.Study on Preparation and Performance of Electrochromic Mesoporous Tungsten Trioxide Films[J].Acta Chimica Sinica,2005,63(20):1884-1888. |
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| Authors: | YUAN Jia-Guo ZHANG Yu-Zhi LE Jun SONG Li-Xin HU Xing-Fang |
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| Institution: | (Research and Development Center for Special Inorganic Materials, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050)(Graduate School of the Chinese Academy of Sciences, Beijing 100080) |
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| Abstract: | 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. |
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| Keywords: | mesoporous tungsten trioxide film cyclic voltammetry electrochromic |
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