Journal
MATERIALS CHEMISTRY AND PHYSICS
Volume 162, Issue -, Pages 645-651Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.matchemphys.2015.06.038
Keywords
Oxides; Heat treatment; Infrared spectroscopy (IR); X-ray diffraction; Thermogravimetric analysis (TGA); Ab initio calculations
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The processes involved in the assembly of zinc acetate dihydrate {Zn(CH3COO)(2)center dot 2H(2)O} and ethanolamine (H2NCH2CH2OH), with or without 2-methoxyethanol as solvent, have been analysed by infrared spectra, mass spectrometry, nuclear magnetic resonance, powder X-ray diffraction and computational studies. Thermal evolution of the mixtures was characterized by thermoanalytical and structural techniques (thermogravimetry, differential thermal analysis, differential scanning calorimetry, X-ray diffraction and X-Ray photoelectron spectroscopy). Computational studies together with experiments served to thoroughly describe the precursor and its decomposition. The thermal decomposition of the mixture and its transformation into crystalline ZnO take place in a temperature range between 50 and 450 degrees C through different processes. With solvent, the processes need temperatures 90 degrees C higher with respect to the mixture without solvent, and ZnO arises at 250 degrees C. (C) 2015 Elsevier B.V. All rights reserved.
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