Effect of precursors on the morphology of lithium aluminate prepared by hydrothermal treatment

Effect of precursors on the morphology of lithium aluminate prepared by hydrothermal treatment

Hydrothermal treatment method was proposed to prepare pure LiAlO2 with fibrous crystal morphology and the effect of precursors on the morphology of lithium aluminate was investigated. Lithium butoxide-aluminum butoxide system gave mostly rod-like β-LiAlO2 crystal. As the length of alkoxy group decre...

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Veröffentlicht in:Journal of materials science 2000, Vol.35 (8), p.1973-1978
Hauptverfasser: Kwon, S W, Park, S B
Format: Artikel
Sprache:eng
Schlagworte:
Aluminum
Boehmite
Chemistry
Crystal morphology
Crystals
Elements and non-metal compounds (oxides, hydroxides, hydrides, sulfides, carbides, ...)
Exact sciences and technology
Hydrothermal treatment
Inorganic chemistry and origins of life
Lithium
Materials science
Morphology
Precursors
Preparations and properties
Sodium hydroxide
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Zusammenfassung:Hydrothermal treatment method was proposed to prepare pure LiAlO2 with fibrous crystal morphology and the effect of precursors on the morphology of lithium aluminate was investigated. Lithium butoxide-aluminum butoxide system gave mostly rod-like β-LiAlO2 crystal. As the length of alkoxy group decreases, the fraction of plate shape crystals was increased and boehmite was dominant crystal phase. Needle-shape β-LiAlO2 was produced from lithium nitrate-aluminum butoxide-sodium hydroxide system with the mole ratio of 6:1:3, respectively. β-LiAlO2 prepared by hydrothermal treatment was transformed to γ-LiAlO2 at 750–850°C. The specific surface area of γ-LiAlO2 powders was above 10 m2/g.
ISSN:0022-2461
1573-4803
DOI:10.1023/A:1004774620783