Abstract
The exploration of efficient preparation methods of VO2(M) powders, especially the controls of particle sizes, is a challenge. In this article VO2(M) powders were prepared by a liquid phase precipitation and post annealing method. The structure and morphology of the VO2(M) powders were characterized by XRD and SEM. The effects of annealing temperature and the amounts of additive SiO2 aerogels on the particle size controlling were studied .The thermal phase transition properties were characterized by DSC analysis. The results reveal that the transformation of crystal phases from V6O13 to VO2(M) takes place in the annealing process and the additive of SiO2 aerogels can control the particle size and promote the particle size to be smaller effectively.
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