无机化学学报

非等温TG- DTG法确定2,2'- 联吡啶- 对甲氧基苯甲酸铕(Ⅲ)热分解反应的机理函数和动力学参数

Determination of Mechanism Function and Kinetic Parameters of ThermalDecomposition of the 2,2'- Dipyridine tris(p- methoxybenzoate)Europium(Ⅲ) with Non isothermal TG and DTG Curves

作者	单位
张建军	河北师范大学实验中心
王瑞芬	河北师范大学化学系, 石家庄050016
翟学良	河北师范大学化学系, 石家庄050016
赵建路	石家庄教育学院, 石家庄050043
杨惠芳	河北医科大学医化教研室, 石家庄050017
默丽萍	河北师范大学化学系, 石家庄050016

摘要: 采用TG-DTG和DTA技术研究了2, 2'-联吡啶-对甲氧基苯甲酸铕(Ⅲ)在静态空气中的非等温热分解过程及动力学,根据TG曲线确定了热分解过程中的中间产物及最终产物,运用微分法与积分法对非等温动力学数据进行分析,推断出第一步的动力学方程为dα/dt=Aexp(-E/RT)2(1-α)^1/2。

关键词: 热分解非等温动力学机理函数铕配合物对甲氧基苯甲酸

基金项目:

Abstract: The thermal decomposition of the 2,2'-dipyridine tris(p methoxybenzoats) europium(Ⅲ) and its kinetics were studied under the non-isothermal condition in air by TG-DTG and DTA methods. The intermediate and residue for each decomposition were identified from TGcurve. The non isothermal kinetic data were analyzed by means of integral and differential methods. The possible reaction mechanisms were investigated by comparing the kinetic parameters. The kinetic equation for the first stage can be expressed as dα/dt=Aexp( E/RT)₂(1 α)^1/2。

Keywords: thermal decomposition non-isothermal kinetics mechanism function europium complex p-methoxybenzoic acid

投稿时间：1999-06-28 修订日期：1999-08-16

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张建军,王瑞芬,翟学良,赵建路,杨惠芳,默丽萍.非等温TG- DTG法确定2,2'- 联吡啶- 对甲氧基苯甲酸铕(Ⅲ)热分解反应的机理函数和动力学参数[J].无机化学学报,2000,16(1):103-110.

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