【摘 要】
：
Hydrogen detection has fundamental significance.Optical type sensor has a favorable prospect of development because of its Security and Sensitivity.In our w
【机 构】
：
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
Hydrogen detection has fundamental significance.Optical type sensor has a favorable prospect of development because of its Security and Sensitivity.In our works, Sol-Gel method combined with dip-coating method has been used to prepare tungsten trioxide, doped with different phase of Titanium dioxide, optical hydrogen-sensing thin films.FT-IR, Raman spectrum, SEM, TEM and Uv-visible Spectroscopy have been used to analysis the compound sols, films and its gasochromic properties, especially the sensitivity to the Hydrogen.FT-IR and TEM show no evidence of the Titanium dioxide in the film and sol, but Raman spectrum and SEM suggest that the Titanium dioxide is on the surface of the film., The improvement of sensitivity by adding Titanium dioxide may be attributed to its ability to adsorb Hydrogen barrierlessly.
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