Barium titanate via thermal decomposition of Ba,Ti-precursor complexes: The nature of the intermediate phases
Copyright policy )Barium titanate via thermal decomposition of Ba,Ti-precursor complexes: The nature of the intermediate phases
The thermal decomposition of Ba,Ti-precursor complexes, containing organic ligands and suitable for the single-source preparation of nanocrystalline BaTiO3, leads firstly to the segregation of specific Ba-rich and Ti-rich phases. Quantitative electron energy loss spectroscopy and powder X-ray diffraction data indicated that the (i) Ba-rich phase is a BaO-stabilised variant of the calcite-type high-temperature modification of BaCO3 and (ii) Ti-rich phases are represented by low crystalline barium titanates with the general Ba:Ti ratio close to 1:4. The subsequent solid state reaction between these phases results then in the formation of BaTiO3.
decomposition, electron energy loss spectroscopy, EELS, oxycarbonate, precursor, Inorganic Chemistry, Chemistry, BaTiO3, intermediate, Physical Sciences and Mathematics, Materials Chemistry, calcite, perovskite
decomposition, electron energy loss spectroscopy, EELS, oxycarbonate, precursor, Inorganic Chemistry, Chemistry, BaTiO3, intermediate, Physical Sciences and Mathematics, Materials Chemistry, calcite, perovskite
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