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

页码：101 / 107

页数：7

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