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E-Journal of Chemistry
Volume 9, Issue 1, Pages 233-239
http://dx.doi.org/10.1155/2012/506572

Control of the Morphology of Molybdenum Dioxide Nanoparticles

R. Naouel,1 F. Touati,2 and N. Gharbi1

1Laboratoire de Chimie de la Matière Condensée, Université de Tunis, Institut Préparatoire aux Etudes d’Ingénieur de Tunis, 2 rue Jawaher Lel Nehru 1089 Montfleury-Tunis, Tunisia
2Institut Nationale de Recherche et d’Analyse Physico-chimique, Technopôle Sidi-Thâbet, Tunisia

Received 27 November 2010; Accepted 22 January 2011

Copyright © 2012 Hindawi Publishing Corporation. 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

Synthesis of MoO2 nanoparticles with one-dimensional (1D) and spherical morphologies in aqueous solutions, through hydrothermal process was investigated. The materials were studied by x-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), Infrared spectroscopy (FTIR) and thermal analysis (TG). It was found that the quantity of organic compound influenced the size and shape of the final product. The possible formation mechanism of MoO2 microspheres and nanowires was also discussed. The conductivity of MoO2 nanowires was explained by the presence of two protons types in the material.