Abstract
Monoclinic vanadium dioxide (VO2) particles are prepared via the thermolysis of a vanadyl ethylene glycolate precursor in an atmosphere of air. Monoclinic VO2 particles can be obtained at temperatures above 170 °C in an oven. The synthetic VO2 product exhibits high crystallinity and features a pure monoclinic phase and composition. The expected metal–insulator transition at around 68 °C is revealed by differential scanning calorimetry, variable-temperature X-ray diffraction and temperature-dependent resistance curves. The exothermic decomposition of the precursor elevates the temperature of the sample and results in a final sample consisting of monoclinic VO2 and having a high crystallinity at room temperature.
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