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Journal of Nanomaterials
Volume 2011, Article ID 526094, 5 pages
http://dx.doi.org/10.1155/2011/526094
Research Article

Synthesis of High-Purity SnO2 Nanobelts by Using Exothermic Reaction

Department of Materials Engineering, Center for Electron Microscopy, Wuhan University, Wuhan 430072, China

Received 20 January 2011; Accepted 27 March 2011

Academic Editor: Gong Ru Lin

Copyright © 2011 Guodong Zhang 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

This paper presents a new method to synthesize high-purity single-crystalline SnO2 nanobelts with rutile structure. The purity, morphology, crystal structure, and sizes of the as-grown SnO2 nanobelts are characterized by X-ray diffraction, energy-dispersive X-ray analysis, scanning electron microscopy, transmission electron microscopy, and Raman-scattering spectroscopy. The scanning electron microscopy and transmission electron microscopy reveal tetragonal SnO2 nanobelts of 50–120 nm in width, 20–50 nm in thickness, and 2–10 μm in length. The three observed Raman peaks at 475, 633, and 774 cm−1 indicate the typical rutile structure of the SnO2, which is in agreement with the X-ray diffraction results, and other peaks of impurity are not found. High-resolution transmission electron microscopy demonstrates that the nanobelts have a high degree of crystallinity, without typical imperfects in it. And the growth mechanism of the SnO2 nanobelts is discussed.