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溶胶复合提高WO3气致变色薄膜氢敏特性
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上海市特殊人工微结构材料与技术重点实验室,上海市特殊人工微结构材料与技术重点实验室,上海市特殊人工微结构材料与技术重点实验室,上海市特殊人工微结构材料与技术重点实验室,上海市特殊人工微结构材料与技术重点实验室,上海市特殊人工微结构材料与技术重点实验室

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国家自然科学基金 (51272179)


Sol- Sol doping WO3 Gasochromic Thin Films withImproved Hydrogen-Sensing Properties
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Shanghai Key Laboratory of Special Artificial,Microstructure Materials and Technology,Tongji University,Shanghai Key Laboratory of Special Artificial,Microstructure Materials and Technology,Tongji University,Shanghai Key Laboratory of Special Artificial,Microstructure Materials and Technology,Tongji University,Shanghai Key Laboratory of Special Artificial,Microstructure Materials and Technology,Tongji University,Shanghai Key Laboratory of Special Artificial,Microstructure Materials and Technology,Tongji University,Shanghai Key Laboratory of Special Artificial,Microstructure Materials and Technology,Tongji University

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National Natural Science Foundation of China (51272179)

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    摘要:

    本文制备了一种WO3-TiO2-SiO2溶胶,通过浸渍提拉法制备了适用于室温下的光学氢敏薄膜。采用FT-IR, SEM, TEM, AFM,XPS以及紫外-可见-近红外光谱对复合薄膜的结构及气致变色性能进行了表征。尽管TiO2并没有复合到薄膜中,但其在溶胶中引导了新的WO3颗粒的生成。这种颗粒分布在薄膜表面使得其表面粗糙度得到提高。气敏测试显示复合薄膜较未复合薄膜拥有更好的气敏性能。这种提升应当来源于WO3颗粒带来的更高的表面粗糙度。

    Abstract:

    WO3-TiO2-SiO2 sol has been prepared for dip coating room-temperature optical hydrogen-sensing thin films. FT-IR, SEM, TEM, AFM, XPS and UV-VIS-NIR spectroscopy have been used to analyze the compound films and its gasochromic properties. Though TiO2 did not doping into the film, it can form WO3 particles during the doping stage in sol. These particles have well spread on the films and improved the roughness of the films. The results of UV-VIS-NIR spectroscopy indicated that TiO2-doped films show better sensitivity than WO3-SiO2 films. The improvement of sensitivity may be assigned to the existence of WO3 particles and high roughness of the films.

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王浩然,高国华,吴广明,张增海,沈军,周斌.溶胶复合提高WO3气致变色薄膜氢敏特性[J].稀有金属材料与工程,2018,47(S2):94~98.[Wang Haoran, Gao Guohua, Wu Guangming, Zhang Zenghai, Shen Jun, Zhou Bin. Sol- Sol doping WO3 Gasochromic Thin Films withImproved Hydrogen-Sensing Properties[J]. Rare Metal Materials and Engineering,2018,47(S2):94~98.]
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  • 收稿日期:2017-12-04
  • 最后修改日期:2018-02-14
  • 录用日期:2018-02-22
  • 在线发布日期: 2018-11-01
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