Detailed FT-IR spectroscopy characterization and thermal analysis of synthesis of barium titanate nanoscale particles through a newly developed process |
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| Affiliation: | 1. State Key Laboratory of Mechanics and Control of Mechanical Structures, College of Aerospace Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China;2. Frontier Research Institute for Interdisciplinary Sciences, Tohoku University, Sendai, Miyagi 980-8578, Japan;3. Chemical Sciences and Engineering Division, Argonne National Laboratory, 9700 S. Cass Ave, Argonne, IL 60439, United States;2. Noritake Co., Limited, RD Center, Miyoshi 470-0293, Japan;1. College of Science, Institute of Materials Physics and Chemistry, Nanjing Forestry University, Nanjing, 210037, PR China;2. Institute of Physics and Technology, Ural Federal University, Yekaterinburg, 620002, Russia;3. Centro de Investigación en Nanomateriales y Nanotecnología, Consejo Superior de Investigaciones Científicas (CSIC)—Universidad de Oviedo (UO)—Principado de Asturias, Avenida de La Vega 4-6 El Entrego, San, Martin Del Rey Aurelio, Asturias, 33940, Spain;4. M.N. Mikheev Institute of Metal Physics, Russian Academy of Sciences, Ural Branch, Yekaterinburg, 620108, Russia |
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| Abstract: | BaTiO3 nanopowders were prepared at lower temperature and in shorter time span through a newly developed process. To reach an in-detail understanding of mechanism of the process, thermal analysis were performed using DTA/TGA and FT-IR techniques aided by in-depth discussions. The results indicated that thermal evolution of sol–gel-powder transformation consists of following steps: the vaporization of volatile organic solvents, the deformation of gel structure and pyrolysis of the Ba–Ti organic precursors, the decomposition of BaCO3 into BaO and CO2, reaction of resulted BaO with TiO2 to form BaTiO3. The results also elucidated the reaction pattern and formation mechanism of BaTiO3 nanopowders from gel-derived precursor. |
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