Journal
MATERIALS LETTERS
Volume 65, Issue 13, Pages 2059-2061Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.matlet.2011.04.015
Keywords
Zinc oxide; Nanoparticles; Co-precipitation; Sintering
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A single step co-precipitation route has been employed for the first time in the preparation of ZnO nanoparticles using ammonium hydroxide and zinc nitrate tetrahydrate. The X-ray diffraction analysis revealed that the synthesized powder has the hexagonal (wurtzite) structure. The as-prepared ZnO powder was well crystalline, without any calcination. This is a promising result compared to those mentioned in the literature, in which crystallization of ZnO nanoparticles was detected at >300 degrees C. The average crystallite size of the as-prepared ZnO nanopowder is 20-40 nm. The nanocrystalline ZnO could be sintered to similar to 95% of the theoretical density at 1300 degrees C in 4 h. (C) 2011 Elsevier B.V. All rights reserved.
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