STUDY AND BUILD SYNTHESIS PROCEDURE OF LiAlO2 MATERIAL

Abstract

In this paper, LiAlO₂ synthesized by three different methods was investigated. Firsly, LiAlO₂ was synthesized by sol-gel method with starting precursors including LiNO₃, Al(NO₃)₃.9H₂O and C₆H₈O₇. Secondly, LiAlO₂ was prepared by reaction solid state method including the starting materials are Li₂CO₃ and γ-Al₂O₃. Thirdly, LiAlO₂ was prepared by sol-gel method combined with EDTA starting materials including LiNO₃, Al(NO₃)₃.9H₂O, C₆H₈O₇ and C₁₀H₁₆N₂O₈ (EDTA). LiAlO₂ after being synthesized by three different methods was studied for structure and morphology by X-ray diffraction and Scanning Electron Microscopy techniques. The results indicate that gamma monophasic LiAlO₂ material was obtained when sintering at a temperature greater than 900 ⁰C. The structure and morphology of LiAlO₂ materials depend on calcination temperature and synthesis method.