【摘 要】
：
The WO3 nanostructure materials have been synthesized from tungsten powder and tungsten oxide sols as precursors via sol-gel method and hydrothermal process
【机 构】
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Shanghai Key Laboratory of Special Artificial, Microstructure Materials and Technology, Tongji Unive
【出 处】
：
2014中国溶胶-凝胶学术研讨会暨国际论坛
论文部分内容阅读
The WO3 nanostructure materials have been synthesized from tungsten powder and tungsten oxide sols as precursors via sol-gel method and hydrothermal process.The structure of WO3 nanoproduct is characterized by X-ray Diffraction (XRD), Scanning Electron Microscope (SEM), Transmission Electron Microscope (TEM), FT-IR and Raman Spectroscopy.The XR D results show that (001) is the main peak and the structure belongs to orthogonal system.The SEM and TEM characterizations show that hydrothermal product acts clustered, and WO3 is clearly crystallized and local ordered.In order to study the influence to WO3 gasochromic property of hydrothermal powder,compound WO3 sol was prepared by mixing sol and powder.The gascochromic property of films made through dip-coating was tested by Uv-visible Spectroscopy.The first time response of compound film is faster than pure WO3 sol films, and coloring-bleaching recycle property is more stable than pure films.
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