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Zinc oxide hollow micro spheres and nano rods: Synthesis and applications in gas sensor

机译：Zinc oxide hollow micro spheres and nano rods: Synthesis and applications in gas sensor

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摘要

Zinc oxide nano rods and micro hollow spheres are successfully fabricated by adopting a simple solvo-thermal approach without employing any surfactant/template by keeping heating time as variable. The prepared products are characterized by using different instruments such as X-Ray Diffraction (XRD), Scanning Electron Microscopy (SEM) and Transmission Electron Microscopy (TEM). In order to investigate the morphological dependence on the reaction time, analogous experiments with various reaction times are carried out. Depending upon heating time, different morphological forms have been identified such as hollow microsphere (4 mu m to 5 mu m) and nano rods with an average diameter of approximately 100 nm. The fabricated materials are also tested for ethanol gas sensor applications and zinc oxide hollow microsphere proven to be an efficient gas sensing materials. Nitrogen adsorption-desorption measurement was performed to understand better performance of zinc oxide micro hollow spheres as effective ethanol gas sensing material. (C) 2014 Elsevier B.V. All rights reserved.

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