Article ID Journal Published Year Pages File Type
1607475 Journal of Alloys and Compounds 2016 7 Pages PDF
Abstract
In this paper, the ZnO nanostructures were synthesized by electrospinning technique, and an improvement of the gas-sensing property of the ZnO nanostructures by calcination time was reported. The porous network-like ZnO nanostructures (12 h) were observed from the SEM micrographs. The PL revealed that the porous network-like ZnO nanostructures had more donor defects (oxygen vacancy) which were good for gas sensing performance. Gas sensing properties revealed that the porous network-like ZnO nanostructures exhibited a higher response and fast response to acetone vapor and excellent selectivity, which was attributed to porous network structure and oxygen vacancies. The acetone sensing mechanism of the porous network-like ZnO nanostructures was also discussed.
Related Topics
Physical Sciences and Engineering Materials Science Metals and Alloys
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