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Abstract
A facile method to prepare Mo doped VO2 nanopowders was introduced. Using V2O5 as a raw material and molybdenum acid as a dopant, the precursor was obtained by redox. Then, doped VO2 nanopowders were produced through heating the precursor at 500°C under an argon atmosphere. The as obtained samples were characterised with powder XRD, X-ray photoelectron spectroscopy, TEM, differential scanning calorimetry and the temperature dependence of infrared spectrum. The analyses indicated that the products were Mo doped VO2, and its phase transition temperature decreased by molybdenum acid doping, but the efficiency of the dopant was weakened with the increase in its content. After doping, the optical property of VO2 did not change.