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Mechanism of Annealing Treatment Effect on the Gasochromic Properties of WO_3 Bulks and Films

机译：退火处理对WO_3块体和薄膜气致变色性能影响的机理

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摘要

Nanostructural WO_3 materials exhibit excellent gasochormism performance under the action of the hydrogen gas. In this paper, we study the mechanism of annealing treatment effect on the gasochromic properties both of the WO_3 bulks and WO_3 films. WO_3 bulks were prepared from WO_3 sol and dried under ambient pressure, which was previously synthesized via sol-gel method. The WO_3 films were prepared using dip-coating method. UV-visible spectroscopy, Raman spectroscopy, Fourier transforms infrared spectroscopy (FT-IR) and X-ray diffraction spectra (XRD) were utilized to investigate components, structures and gasochromic properties. And we find that the mechanism of the thermal treatment on the gasochromic performance depends on H~+ diffusion velocity which largely relies on the structural water content.
机译：纳米结构WO_3材料在氢气的作用下表现出优异的气相化学性能。在本文中，我们研究了退火处理作用对WO_3块和WO_3膜的气致变色性能的影响机理。由WO_3溶胶制备WO_3本体，并在环境压力下干燥，该环境压力事先通过溶胶-凝胶法合成。使用浸涂法制备WO_3膜。紫外可见光谱，拉曼光谱，傅立叶变换红外光谱（FT-IR）和X射线衍射光谱（XRD）用于研究组分，结构和气致变色性质。并且我们发现热处理对气致变色性能的机理取决于H〜+扩散速度，而H〜+扩散速度很大程度上取决于结构水含量。

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  • 来源
    《Inorganic thin films and coatings》|2012年|179-183|共5页
  • 会议地点 Guilin(CN)
  • 作者

    JIN Xiaobo; WU Guangming; GAO Guohua; FENG Wei; ZHANG zenghai; SHEN Jun;

  • 作者单位

    Pohl Institute of Solid State Physics, Tongji University, Shanghai, 200092, China;

    Pohl Institute of Solid State Physics, Tongji University, Shanghai, 200092, China;

    Pohl Institute of Solid State Physics, Tongji University, Shanghai, 200092, China;

    Pohl Institute of Solid State Physics, Tongji University, Shanghai, 200092, China;

    Pohl Institute of Solid State Physics, Tongji University, Shanghai, 200092, China;

    Pohl Institute of Solid State Physics, Tongji University, Shanghai, 200092, China;

  • 会议组织
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    sol-gel; WO_3; gasochromism; annealing treatment;

    机译：溶胶凝胶WO_3;气致变色退火处理;

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