Solid state reaction study of the system Li2CO3/Fe2O3

Authors
Berbenni, V Marini, A Capsoni, D
Citation
V. Berbenni et al., Solid state reaction study of the system Li2CO3/Fe2O3, Z NATURFO A, 53(12), 1998, pp. 997-1003
Citations number
15
Categorie Soggetti
Physical Chemistry/Chemical Physics
Journal title
ZEITSCHRIFT FUR NATURFORSCHUNG SECTION A-A JOURNAL OF PHYSICAL SCIENCES
ISSN journal
09320784 → ACNP
Volume
53
Issue
12
Year of publication
1998
Pages
997 - 1003
Database
ISI
SICI code
0932-0784(199812)53:12<997:SSRSOT>2.0.ZU;2-0
Abstract
A thermoanalytical (TGA/DSC) and diffractometric (XRD) study has been perfo rmed on the solid state reaction system Li2CO3-Fe2O3 in the x(Li) range 0.1 0 divided by 0.50. A detailed analysis of the results shows that the data a re in agreement with a reaction model where the carbonate decomposition is regulated by the formation of both LiFeO2 and LiFe5O8, and the relative amo unt of the two phases depends on the initial composition. The DSC evidence offers the possibility to directly quantify the LiFe5O8 phase. Furthermore it allows one to obtain the enthalpies of formation of both LiFeO2, and LiF e5O8.