Synthesis and Ethanol Sensitivities of Sn02 nanowires Suvit

Subject Areas : Journal of Physical & Theoretical Chemistry

. Thanasanvorakun ¹ (-)
Pongsri Mangkomtong ² (-)
Majid Monajjemi ³ (-)
Nikom Sangkorntong ⁴ (-)

Received: 2015-05-09 Accepted : 2015-05-09 Published : 2009-05-01

Keywords: carbothermal, nanowires, resistivity, rutile,

Abstract :

Sn02 nanowires with diameters of 30 — 200 nm have been synthesized by using carbothermalprocess via a thick film of tin dioxide and carbon powder precursor. The nanowires werecharacterized by X-ray power diffraction (XRD), scanning electron microscopy (SEM),transmission electron microscopy (TEM) and Selected Area Electron Diffraction (SAED).The gas sensing characteristic of nanowires toward ethanol vapor was investigated. The gassensitivity experiments have demonstrated that the as-synthesized Sn02 materials exhibitgood sensitivity to ethanol vapors, which may offer potential applications in gas sensors. Thedetails of its sensing characteristics were observed and discussed.

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Synthesis and Ethanol Sensitivities of Sn02 nanowires Suvit