ABSTRACT

Zinc oxalate dihydrate and barium containing zinc oxalate of barium concentrations 2, 3, 4, and 5 mol% have been synthesized and characterized by Fourier transform-infrared spectroscopy (FTIR). The thermal events were studied by thermogravimetry in air and differential scanning calorimetry in a nitrogen atmosphere at different linear heating rates 2, 4, 6, 8, and 10 K/min. Zinc oxide and barium containing zinc oxide nanoparticles were characterized by FTIR, ultraviolet-diffuse reflectance spectrum, and X-ray diffraction. The activation energy for the formation of zinc oxide and barium containing zinc oxide nanoparticles was calculated by using different isoconversional methods and found that the activation energy varies with the addition of barium.