| 以两亲性共聚物为模板溶胶-凝胶法制备WO3多孔薄膜及其 氢致变色特性的研究 |
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| 引用本文： | 丁进月,钟良,赵巧玲,黄晋,张淑媛,马志.以两亲性共聚物为模板溶胶-凝胶法制备WO3多孔薄膜及其 氢致变色特性的研究[J].化学学报,2009,67(2):179-184. |
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| 作者姓名： | 丁进月 钟良 赵巧玲 黄晋 张淑媛 马志 |
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| 作者单位： | (a郑州大学化学系 郑州 450052) (b中国科学院上海有机化学研究所 上海 200032) |
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| 基金项目： | 中国科学院知识创新工程青年人才领域前沿项目，教育部留学回国人员科研启动基金资助项目 |
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| 摘 要： | 报道了以六氯化钨为原料, 以两亲性的无规共聚物聚苯乙烯-co-聚烯丙醇(PS-co-PAAL)和三嵌段共聚物聚氧乙烯-b-聚氧丙烯-b-聚氧乙烯(PEO-b-PPO-b-PEO)为模板, 采用溶胶-凝胶法制备了WO3多孔薄膜. 利用热重分析仪(TGA)、粉末X射线衍射仪(XRD)、扫描电子显微镜(SEM)、原子力显微镜(AFM)等表征手段, 研究了模板和热处理温度对薄膜孔结构的影响; 并通过H2敏测试以及利用紫外可见分光光度计(UV), 研究了薄膜的氢敏性能和着色前后的透射光谱. 结果表明, 以无规共聚物PS-co-PAAL为模板制得的WO3薄膜, 经400 ℃热处理后, 可得到呈交联网状的多孔结构, 并表现出最佳的氢致变色性能.
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| 关 键 词： | 三氧化钨多孔薄膜 溶胶-凝胶法 两亲性共聚物模板 氢致变色 |
| 收稿时间： | 2008-9-14 |
| 修稿时间： | 2008-10-15 |
Preparation of Porous WO3 Films by Sol-Gel Process Using Amphiphilic Copolymer as Template and Their Hydrogen Gasochromic Properties |
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| Ding Jinyuea,Zhong Liang,Zhao Qiaoling,Huang Jin,Zhang Shuyuan,Ma Zhi.Preparation of Porous WO3 Films by Sol-Gel Process Using Amphiphilic Copolymer as Template and Their Hydrogen Gasochromic Properties[J].Acta Chimica Sinica,2009,67(2):179-184. |
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| Authors: | Ding Jinyuea Zhong Liang Zhao Qiaoling Huang Jin Zhang Shuyuan Ma Zhi |
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| Institution: | (a Department of Chemistry, Zhengzhou University, Zhengzhou 450052) (b Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032) |
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| Abstract: | Porous tungsten oxide films were prepared using a sol-gel process with the tungstic chloride as the source material using amphiphilic copolymers, poly(styrene-co-allyl alcohol) (PS-co-PAAL) and poly(ethylene oxide)-block-poly(propylene oxide)-block-poly(ethylene oxide) (PEO-b-PPO-b-PEO), as tem- plate respectively. The effect of polymer template and annealed temperature on the porous structure of the WO3 films was investigated by thermogravimetric analyzer (TGA), X-ray powder diffractometer (XRD), scanning ... |
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| Keywords: | porous tungsten oxide film sol-gel process amphiphilic copolymer template hydrogen gasochromic |
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