On the nonlinear isoconversional procedures to evaluate the activation energy of nonisothermal reactions in solids

被引：26

作者：

Budrugeac, P

Segal, E

机构：

[1] ICPE CA, Res & Dev Inst Elect Engn, Bucharest 74204, Romania

[2] Univ Bucharest, Fac Chem, Dept Phys Chem, Bucharest, Romania

来源：

INTERNATIONAL JOURNAL OF CHEMICAL KINETICS | 2004年 / 36卷 / 02期

关键词：

D O I：

10.1002/kin.10158

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A general procedure for deriving the equations that underlie various isoconversional nonlinear methods for evaluating the activation energy is presented. A new integral isoconversional nonlinear method with integration over a given range of conversion is suggested. This method was applied to simulated nonisothermal data as well as to data for the nonisothermal decomposition of ammonium perchlorate. The obtained dependencies of the activation energy on the degree of conversion were compared with those resulting from other nonlinear and linear methods of analysis. (C) 2003 Wiley Periodicals, Inc.

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页码：87 / 93

页数：7

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