Effect of various synthetic parameters on purity of LiMn2O4 spinel synthesized by a sol-gel method at low temperature

Citation
Bj. Hwang et al., Effect of various synthetic parameters on purity of LiMn2O4 spinel synthesized by a sol-gel method at low temperature, J POWER SOU, 101(1), 2001, pp. 86-89
Citations number
18
Categorie Soggetti
Physical Chemistry/Chemical Physics","Environmental Engineering & Energy
Journal title
JOURNAL OF POWER SOURCES
ISSN journal
03787753 → ACNP
Volume
101
Issue
1
Year of publication
2001
Pages
86 - 89
Database
ISI
SICI code
0378-7753(20011001)101:1<86:EOVSPO>2.0.ZU;2-#
Abstract
Spinel lithium manganese oxide, LiMn2O4, prepared by the sol-gel method usi ng citric acid as a chelating agent under different (i) pH conditions, (ii) molar ratio of citric acid to total metal ion, (iii) amount of water, (iv) calcination temperature, and (vi) starting materials. The effects of vario us synthetic parameters on the purity of this oxide are analysed by means o f X-ray diffraction measurements. The results show that pure LiMn2O4 can be prepared from nitrate salts as starting materials at a low temperature of 600 degreesC. The optimum pH and molar ratio of chelating agent to total me tal ions are 6.0 and 1.0, respectively. (C) 2001 Elsevier Science B.V. All rights reserved.