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Journal of Nanomaterials
Volume 2011 (2011), Article ID 428172, 5 pages
http://dx.doi.org/10.1155/2011/428172
Research Article

Synthesis of Vertically Aligned Dense ZnO Nanowires

1College of Chemical Engineering and Technology, Harbin Institute of Technology, Harbin 150001, China
2College of Chemistry and Chemical Engineering, Harbin Normal University, Harbin 150025, China

Received 1 April 2010; Revised 26 May 2010; Accepted 23 June 2010

Academic Editor: Quanqin Dai

Copyright © 2011 Lihong Gong et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

We reported the synthesis of vertically aligned dense ZnO nanowires using Zn powder as the source material by a hydrothermal method and a postannealing process at 200°C. The as-synthesized ZnO nanowires are 100–200 nm in diameter and several micrometers in length and each nanowire has a tapered tip. The morphologies of the products remain after post-annealing treatment. Structural analysis indicates the ZnO nanowire is single crystalline and grows along the [0001] direction. The possible growth mechanism for ZnO nanowire bundles is proposed.