Effect of solvents on the preparation of lithium aluminate by sol-gel method

Oksuzomer F., Koc S., Boz I., Gurkaynak M.

MATERIALS RESEARCH BULLETIN, cilt.39, ss.715-724, 2004 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 39
  • Basım Tarihi: 2004
  • Doi Numarası: 10.1016/j.materresbull.2003.10.022
  • Dergi Adı: MATERIALS RESEARCH BULLETIN
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.715-724
  • İstanbul Üniversitesi Adresli: Evet

Özet

gamma-Lithium aluminate was prepared by sol-gel method using lithium methoxide and aluminum-sec-butoxide precursors in i-propanol, n- and tert-butanol. Clear gels could be obtained due to the addition of ethylacetoacetate and the dried solids were calcined at 550 and 900 degreesC. The resulting solids were characterized by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), scanning electron microscopy (SEM), thermogravimetric analysis/differential thermal analysis (TGA/DTA). gamma-Lithium aluminate with the highest purity was obtained with t-butanol solvent and LiAl5O8 was the second major phase. (C) 2004 Elsevier Ltd. All rights reserved.