Application of non-linear heating regime for the determination of activation energy and kinetic parameters of solid-state reactions

Authors
Tomashevitch, KV Kalinin, SV Vertegel, AA Oleinikov, NN Ketsko, VA Tretyakov, YD
Citation
Kv. Tomashevitch et al., Application of non-linear heating regime for the determination of activation energy and kinetic parameters of solid-state reactions, THERMOC ACT, 323(1-2), 1998, pp. 101-107
Citations number
32
Categorie Soggetti
Spectroscopy /Instrumentation/Analytical Sciences
Journal title
THERMOCHIMICA ACTA
ISSN journal
00406031 → ACNP
Volume
323
Issue
1-2
Year of publication
1998
Pages
101 - 107
Database
ISI
SICI code
0040-6031(199812)323:1-2<101:AONHRF>2.0.ZU;2-8
Abstract
In the present research, we suggested non-linear heating regime for the the rmogravimetric (TG) determination of kinetic parameters of solid-state reac tions. The method is based on the application of a hyperbolic heating mode. The method allows the reaction activation energy and kinetic function to b e obtained from a series of non-isothermal experiments. Kinetics of the mod el solid-state reaction Fe2O3+Li2CO3=2LiFeO(2)+CO2 was investigated by the suggested method. The kinetic parameters obtained are in a good agreement w ith the reference data. (C) 1998 Elsevier Science B.V. All rights reserved.