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Preparation and gas sensing properties of the nutlike ZnO microcrystals via a simple hydrothermal route
- Source :
-
Materials Letters . Apr2009, Vol. 63 Issue 11, p843-846. 4p. - Publication Year :
- 2009
-
Abstract
- Abstract: Large-scale uniform nutlike ZnO microcrystals are successfully synthesized via a facile hydrothermal process at low temperature (95 °C). The structure and morphology of the ZnO products are characterized by X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM) and transmission electron microscopy (TEM). The results reveal that the as-prepared ZnO products have average length of 2.2 µm and diameter of 1.8 µm, possessing a single crystal wurtzite structure. The possible formation mechanism of nutlike microcrystals is proposed. The samples exhibit excellent ethanol sensing properties at the operating temperature of 250 °C detecting ethanol as low as 1 ppm. [Copyright &y& Elsevier]
Details
- Language :
- English
- ISSN :
- 0167577X
- Volume :
- 63
- Issue :
- 11
- Database :
- Academic Search Index
- Journal :
- Materials Letters
- Publication Type :
- Academic Journal
- Accession number :
- 36766431
- Full Text :
- https://doi.org/10.1016/j.matlet.2009.01.012