Characterization of Sol–Gel LiMn2O4 Spinel Phase

Lithium manganese spinel Li1+yMn2−yO4 (0.0≤y≤0.07) synthesized by the sol–gel process is studied with a focus on the effects of the changes of formation conditions which can sensibly determine the mean crystallite size from a few nanometers to several hundred nanometers. Changes of stoichiometry and...

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Veröffentlicht in:	Journal of solid state chemistry 1999-11, Vol.147 (2), p.509-515
Hauptverfasser:	Massarotti, V., Capsoni, D., Bini, M., Chiodelli, G., Azzoni, C.B., Mozzati, M.C., Paleari, A.
Format:	Artikel
Sprache:	eng
Schlagworte:	Cross-disciplinary physics: materials science rheology Exact sciences and technology Growth from solutions Li1+yMn2−yO4, Li-rich spinel LiMn2O4, crystallite size and strain LiMn2O4, electric properties LiMn2O4, magnetic properties LiMn2O4, spinel Materials science Methods of crystal growth physics of crystal growth Physics
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Beschreibung
Zusammenfassung:	Lithium manganese spinel Li1+yMn2−yO4 (0.0≤y≤0.07) synthesized by the sol–gel process is studied with a focus on the effects of the changes of formation conditions which can sensibly determine the mean crystallite size from a few nanometers to several hundred nanometers. Changes of stoichiometry and abundance of the spinel phase can be observed in the 573≤TA (K)≤1073 range of annealing temperature (TA). Comparing spinel phases obtained by sol–gel and solid state synthesis evidences the correlation among composition, structure, and electric and magnetic properties.
ISSN:	0022-4596 1095-726X
DOI:	10.1006/jssc.1999.8406