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Comparative Study of Two Different TiO? Film Sensors on Response to H? under UV Light and Room Temperature.

ABSTRACT: An anatase TiO? film sensor was prepared by a facile in-situ method on the interdigitated Au electrode deposited on the alumina substrate. The structure, morphology and the optical properties of the in-situ TiO? film sensor were characterized by X-ray diffraction, Scanning Electron Microscopy, and UV-vis diffuse reflectance spectra. The photo-assisted gas sensitivities of the prepared film towards H? gas were evaluated at room temperature in N? and synthetic air atmospheres. As compared to TiO? film sensor prepared by drop-coating method, this in-situ TiO? film sensor exhibited a more compact structure composed of uniform TiO? microspheres as well as a better gas sensitivity towards H? under UV irradiation, especially in synthetic air. The photo-electrochemical measurements suggest that these improvements may be associated with the efficient charge transfer in the TiO? interface induced by the TiO? microsphere structure. This study might offer a feasible approach to develop photo-assisted gas sensors at ambient temperature.

SUBMITTER: Peng X

PROVIDER: S-EPMC5017414 | biostudies-literature | 2016 Aug

REPOSITORIES: biostudies-literature

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Comparative Study of Two Different TiO₂ Film Sensors on Response to H₂ under UV Light and Room Temperature.

Peng Xiaoying X Wang Zhongming Z Huang Pan P Chen Xun X Fu Xianzhi X Dai Wenxin W

Sensors (Basel, Switzerland) 20160808 8

An anatase TiO₂ film sensor was prepared by a facile in-situ method on the interdigitated Au electrode deposited on the alumina substrate. The structure, morphology and the optical properties of the in-situ TiO₂ film sensor were characterized by X-ray diffraction, Scanning Electron Microscopy, and UV-vis diffuse reflectance spectra. The photo-assisted gas sensitivities of the prepared film towards H₂ gas were evaluated at room temperature in N₂ and synthetic air atmospheres. As compared to TiO₂ ...[more]

PMID: 27509502

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Comparative Study of Two Different TiO? Film Sensors on Response to H? under UV Light and Room Temperature.

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Comparative Study of Two Different TiO₂ Film Sensors on Response to H₂ under UV Light and Room Temperature.

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