The mode of multi-tier nested Tin dioxide polyhedral nanoparticles with exposed high-energy facets and their gas sensing properties

Polyhedral-like Tin dioxide (SnO2) with exposed high-energy was fabricated by a simple hydrothermal route. The structures, morphology and gas sensing properties were characterized by X-ray diffraction (XRD), scanning electron microscope (SEM), transmission electron microscopy (TEM) and gas sensing m...

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Bibliographic Details
Published in:Materials letters 2016-02, Vol.164, p.627-630
Main Authors: Chen, H., Ma, S.Y., Jin, W.X., Li, W.Q.
Format: Article
Language:English
Subjects:
Exposure
Gas sensors
Microstructure
Multi-tier
Nanoparticles
Polyhedral nanoparticles
Scanning electron microscopy
Sensors
Tin dioxide
Tin oxides
Transmission electron microscopy
X-ray diffraction
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Summary:Polyhedral-like Tin dioxide (SnO2) with exposed high-energy was fabricated by a simple hydrothermal route. The structures, morphology and gas sensing properties were characterized by X-ray diffraction (XRD), scanning electron microscope (SEM), transmission electron microscopy (TEM) and gas sensing measurement system. The XRD studies indicated that the as-prepared samples had well crystallized, the SEM and TEM studies demonstrated that the sample of multi-tier nested Tin dioxide with polyhedral-like nanoparticles were fabricated successfully. In addition, the present study could be applied to the ethanol detection at a low temperature, because of its unique structures. •As-prepared SnO2 is single-crystalline.•The sample is multi-tier structure with exposed high-energy facets.•Our sample has highly selectivity and sensitivity to 200ppm ethanol at 160°C.
ISSN:0167-577X
1873-4979
DOI:10.1016/j.matlet.2015.11.088