期刊
APPLIED SURFACE SCIENCE
卷 258, 期 22, 页码 8431-8438出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.apsusc.2011.12.090
关键词
Gas sensor; ZnO; Thermal evaporation; Precursor template; Ethanol sensing
类别
资金
- National Natural Science Foundation of China [51002058, 10975109, 61006046]
Using Zn powder as precursor templates, ZnO hollow microspheres were successfully prepared by thermal evaporation method and characterized by X-ray diffraction analysis, scanning electron microscope and transmission electron microscope. It was found that different size and shape of precursor resulted in different ZnO nanostructures. When varying experimental conditions, such as air flow rate and working pressure, ZnO hollow spheres with different surface morphologies could be obtained. The advantages of the present synthetic technology are simple, relatively low cost, and high reproducibility. A gas sensor was fabricated from the as-prepared ZnO hollow microspheres and tested to the ethanol gas at different operating temperatures. 2012 Published by Elsevier B.V.
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