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

被引：11
|
作者：
Tomashevitch, KV
Kalinin, SV
Vertegel, AA [1 ]
Oleinikov, NN
Ketsko, VA
Tretyakov, YD
机构：
[1] Moscow State Univ, Dept Chem, Inorgan Chem Div, Moscow, Russia
[2] Russian Acad Sci, Inst Gen & Inorgan Chem, Moscow 119899, Russia
来源：
THERMOCHIMICA ACTA | 1998年 / 323卷 / 1-2期
关键词：
activation energy; hyperbolic heating rate; non-linear thermogravimetric analysis; thermal analysis;
D O I：
10.1016/S0040-6031(98)00503-6
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
In the present research, we suggested non-linear heating regime for the thermogravimetric (TG) determination of kinetic parameters of solid-state reactions. The method is based on the application of a hyperbolic heating mode. The method allows the reaction activation energy and kinetic function to be obtained from a series of non-isothermal experiments. Kinetics of the model solid-state reaction Fe2O3+Li2CO3=2LiFeO(2)+CO2 was investigated by the suggested method. The kinetic parameters obtained are in a good agreement with the reference data. (C) 1998 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：101 / 107
页数：7
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