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Direct Synthesis of Pure Radiative Vo2 (M) Plate Like Structures Via Hydrothermolysis at Low Temperature

Published online by Cambridge University Press:  07 February 2012

A. Simo ,
L.C. Edomwonyi-Otu ,
R. Madjoe  and
M. Maaza
A. Simo
Affiliation:
Nanoscience Laboratories, Materials Physics Dept., iThemba LABS-National Research Foundation, P O Box 722, Somerset West 7129, Faure, South Africa Physics Dept., University of Western Cape, Belleville, South Africa
L.C. Edomwonyi-Otu
Affiliation:
Nanoscience Laboratories, Materials Physics Dept., iThemba LABS-National Research Foundation, P O Box 722, Somerset West 7129, Faure, South Africa Chemical Engineering Dept, Ahmadu Bello University, Zaria, Nigeria. 870001 Chemical Engineering Department, University College London, WC1E 7JE, UK
R. Madjoe
Affiliation:
Physics Dept., University of Western Cape, Belleville, South Africa
M. Maaza
Affiliation:
Nanoscience Laboratories, Materials Physics Dept., iThemba LABS-National Research Foundation, P O Box 722, Somerset West 7129, Faure, South Africa
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Abstract

Facile and direct synthesis of radiative VO2 (M) plate-like is reported. The snowflake material presents superstructures plate-like aggregate with an anisotropic orientation in shape governed by V2O5 and NaOH concentration giving high surface energy liable for chemical reactions with the medium. Pure crystalline VO2 (M) has been obtained with a complete hydrothermolysis of the precursor. The morphological, structural, elemental composition, crystallinity and vibrational bands of the powders were characterized by Powder X-ray Diffraction (XRD), Scanning Electron Microscopy (SEM), Selected Area Electron Diffraction (SAED) and Fourier Transform-Attenuated Total Reflection (FTIR-ATR) infrared spectroscopy.

Keywords

annealingsol-gelscanning electron microscopy (SEM)
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1406: Symposium Z – Functional Metal-Oxide Nanostructures , 2012 , mrsf11-1406-z05-36
Copyright
Copyright © Materials Research Society 2012

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References

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