Hydrothermal synthesis of nanocrystalline VO2 from poly(diallyldimethylammonium) chloride and V2O5 |
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| Authors: | Fernando J. Quites |
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| Affiliation: | Micro and Mesoporous Molecular Sieves Group, Institute of Chemistry, University of Campinas (UNICAMP), POB 6154, 13083-970 Campinas, SP, Brazil |
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| Abstract: | Novel vanadium dioxide nanorods were fabricated from V2O5 in the presence of a reducing agent, the poly(diallyldimethylammonium chloride) (PDDA) via a hydrothermal method at 180 °C for 48 h. The samples produced were characterized by powder X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), infrared spectroscopy (FTIR), nitrogen adsorption (BET) and thermogravimetry (TG/DTG). The nanorods obtained are approximately 50 nm wide and from 300 to 500 nm long and presents high surface area (42 m2 g−1). The nanocrystalline B phase VO2 is not produced by hydrothermal treatment in the absence of the PDDA polyelectrolyte. |
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| Keywords: | A. Nanostructures B. Chemical synthesis C. X-ray diffraction |
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