Development of BaTiO3 e SrTiO3 by the Microwave-Assisted Hydrothermal (MAH) method using different mineralizers

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Abstract
08-074 Nathanael Felipe Guedes Silva Silva, N.F.(Universidade Estadual Paulista); Magalhães, R.d.(Universidade Estadual Paulista); Santos, L.F.(Universidade Estadual Paulista); Junior, W.D.(Universidade Estadual Paulista); Souza, A.E.(Universidade Estadual Paulista); Teixeira, S.R.(Universidade Estadual Paulista); In this work barium titanate (BaTiO3) and strontium titanate (SrTiO3) were prepared by Microwave-Assisted Hydrothermal (MAH) method, using a Ti precursor different from those shown in the literature and various concentrations (1, 3 e 6 mol L-1) of KOH and NaOH mineralizer. As a titanium precursor, an anatase complex with hydrogen peroxide were used. For the precursors of barium and strontium, chlorides were used. The materials resulting from the synthesis processes were characterized in room temperature by different techniques as like: X-Ray Diffraction (XRD), micro-Raman Spectroscopy, UV-Vis and Scanning Electron Microscopy (SEM). The results show that there were differences in crystallinity, morphology and number of phases depending on the concentration of the mineralizer.
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