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Published on: February 20, 2016
Phase transformation of VO2 nanoparticles assisted by microwave heating
Phatcharee Phoempoon1, Lek Sikong1
1Department of Mining and Materials Engineering, Faculty of Engineering, Prince of Songkla University, Hat Yai 90112, Thailand ; CENE Center of Excellence in Nanotechnology for Energy, Prince of Songkla University, Hat Yai 90112, Thailand.
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The microwave assisted synthesis nowadays attracts a great deal of attention. Monoclinic phase VO2 (M) was prepared from NH4VO3 and H2C2O4 · 2H2O by a rapid microwave assisted technique. The synthesis parameters, microwave irradiation time, microwave power, and calcinations temperature were systematically varied and their influences on the structure and morphology were evaluated. The microwave power level has been carried out in range 180-600 W. TEM analysis demonstrated nanosized samples. The structural and morphological properties were measured using XRD, TEM, and thermal analyses. The variations of vanadium phase led to thermochromic properties.
