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  • Enhanced formic acid gas-sensing property of WO3 nanorod bundles via hydrothermal method

    Author(s)
    Lu, Na
    Gao, Xiaoqing
    Yang, Chao
    Xiao, Feng
    Wang, Jide
    Su, Xintai
    Griffith University Author(s)
    Su, Xintai
    Year published
    2016
    Metadata
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    Abstract
    WO3 nanorod bundles were prepared via a facile hydrothermal method with Na2SO4 as structure directing agent. Field-emission scanning electron microscopy (FESEM) and transmission electronic microscopy (TEM) images indicate that the WO3 nanorod bundles consist of hierarchically nanostructured bundles assembled with smaller nanorod subunits. Furthermore, the gas-sensing properties of the as-prepared WO3 were tested to a series of organic gases. The WO3 nanorod bundles display a significantly better sensing performance (100 ppm formic acid, Ra/Rg = 51.3) than commercial WO3 (100 ppm formic acid, Ra/Rg = 1.8) for the detection ...
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    WO3 nanorod bundles were prepared via a facile hydrothermal method with Na2SO4 as structure directing agent. Field-emission scanning electron microscopy (FESEM) and transmission electronic microscopy (TEM) images indicate that the WO3 nanorod bundles consist of hierarchically nanostructured bundles assembled with smaller nanorod subunits. Furthermore, the gas-sensing properties of the as-prepared WO3 were tested to a series of organic gases. The WO3 nanorod bundles display a significantly better sensing performance (100 ppm formic acid, Ra/Rg = 51.3) than commercial WO3 (100 ppm formic acid, Ra/Rg = 1.8) for the detection of formic acid. The results demonstrated that the WO3 nanorod bundles have a potential application in formic acid sensors.
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    Journal Title
    Sensors and Actuators, B: Chemical
    Volume
    223
    DOI
    https://doi.org/10.1016/j.snb.2015.09.156
    Subject
    Physical Chemistry not elsewhere classified
    Optical Physics
    Analytical Chemistry
    Materials Engineering
    Publication URI
    http://hdl.handle.net/10072/172078
    Collection
    • Journal articles

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