The Synthesis of ZnO Acicular Particles by the Hydrothermal Discharging-gas Method
- 1 April 1999
- journal article
- Published by Springer Science and Business Media LLC in Journal of Materials Research
- Vol. 14 (4), 1532-1537
- https://doi.org/10.1557/jmr.1999.0205
Abstract
In this paper, a new hydrothermal method—discharging-gas method—is introduced. ZnO acicular particles with the ratio of length and diameter 16: 1 are synthesized by the hydrothermal discharging-gas method using a mixed solution of Zn(CH3COO)2 with NaNO2 as precursor at 190 °C for 1 h. The effects of reaction temperature and precursor concentration on formation of acicular particles are investigated. The results show that the main factor for formation of acicular particles prepared by the hydrothermal discharging-gas method is the extent of crystallinity of ZnO powders before releasing gas.Keywords
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