Preparation of ternary compound Ba3Li2Ti8O20 by the sol-gel process

In this work, we have synthesized the compound Ba3Li2Ti8O20 by the sol-gel method using titanium isopropoxide, barium isopropoxide and lithium acetate salt as precursors reactants. Ethanol was used as solvent and the reaction was carried out at pH 3 using glacial acetic acid as catalyst. The synthes ized products were thermally treated at different temperatures and characte rized by infrared (IR) spectroscopy, X-ray diffraction and thermal analysis . The crystalline phase Ba3Li2Ti8O20 was achieved by heating the obtained g el at 800 degrees C for 6 h, which represents a lower temperature and small er reaction time than reported through the solid-state reaction method, whi ch use temperatures of 1150-1200 degrees C for 2-10 days. (C) 2000 Elsevier Science B.V. All rights reserved.