Hydrothermal synthesis and gas sensing properties of hexagonal and orthorhombic WO3 nanostructures
作者： Shaohong Wei , Junhong Zhao , Boxiao Hu , Kaiqiang Wu , Weimin Du
DOI: 10.1016/J.CERAMINT.2016.11.064
关键词:
摘要: Abstract Hollow cauliflower-like hexagonal WO 3 and cuboid-like orthorhombic nanostructures were successfully synthesized via a simple hydrothermal method with the assistance of different surfactants. The products characterized by X-ray powder diffraction (XRD), field emission scanning electron microscopy (FESEM) transmission (TEM). possible formation mechanisms morphologies proposed gas sensing properties also investigated. Our research indicated that morphology crystal phase crucial for dissimilarity performance. novel sensor exhibited excellent CO at 270 °C higher faster response, which may benefit from hollow porous structure (001) reactive surfaces phase. mechanism was discussed.
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