Insights on the mechanism of solid state reaction between TiO2 and BaCO3 to produce BaTiO3 powders: The role of calcination, milling, and mixing solvent
Source abstract
Abstract
Abstract Barium titanate (BaTiO3) is well-known for its variety of macroscopic properties, however, the mechanism of formation of this oxide in microscale remains poorly understood. We prepared the BaTiO3 nanoparticles and studied them as a function of milling time and temperature. A systematic study was performed to understand the reaction mechanism of undissociated and dissociated 2-propanol molecules on TiO2 and BaCO3 particles. Structural evolution and thermal decomposition of surface particles were carried out and studied by X-ray diffraction, scanning electron microscopy (SEM) and Fourier transform infrared (FTIR) spectroscopy analysis. Structural parameters refined by Rietveld analysis using X-ray diffraction data revealed a tetragonal structure with P4/mm space group, which was due to the dependence of functional groups on the milling time and thermal treatment. The divergence of tetragonality as a function of thermal treatment was identified for particles of size
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Research context
OpenAlex topics: TiO2 Photocatalysis and Solar Cells · Advanced Photocatalysis Techniques · Ferroelectric and Piezoelectric Materials
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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