Fabrication of composite nanoparticles based on VO2 with given structure and its optical and electrochemical performance

The leading concept of the research was to control functionality of vanadium dioxide by regulation of its crystal structure by means of nucleus in hydrothermal process. In order to prove the idea that VO2 with a definite structure would have specific physicochemical properties the nuclei close to two most common VO2 crystal phases were chosen: CuO for monoclinic and SnO2 for tetragonal one. Powder morphology full characterization was indicated that the product inherits the crystal structure of the nucleus in hydrothermal process. Perspective optical and electrochemical vanadium dioxide performance was presented. In order to open prospects for wide application of the vO(2) powder a composite material based on vanadium dioxide as a functional component and methyl methacrylate as a matrix was obtained. The interaction between components was improved by VO2 surface modification. Both inorganic and organic shells were used. Modified powders were successfully applied as smart coating for window in a room model.