Synthesis and Transport Properties of Nanostructured VO2 by Mechanochemical Processing
Abstract
The high-energy milling of the V2O5-Na2SO3 mixture in the range of 5 - 100 min leads to a synthesis of monoclinic VO2. The starting and minimum (at 220 °C) values of electric resistance R of the 100 min milled and pressed VO2-Na2SO4 mixture were 13.9 MΩ and 91.5 kΩ, respectively. The subsequent washing of the as-milled powder partially leads to the development of VO2 nanostructures with tube-like, sheet-like and rod-like morphology, besides VO2 (B) belt-like morphology, depending on the milling times.
© 2011 P. Billik, M. Čaplovičová, J. Maňka, Ľ. Čaplovič, A. Cigáň, A. Koňakovský, R. Bystrický, A. Dvurečenskij, published by Slovak Academy of Sciences, Institute of Measurement Science
This work is licensed under the Creative Commons License.