对硝基苯甲酸铕与2,2’-联吡啶配合物非等温热分解动力学的研究  

Studies of the Non isothermal Kinetics of Thermal Decomposition of the Complex of Europium p-nitrobenzoate with 2,2'-dipyridine

作　　者：张建军[1] 王瑞芬[2] 周清泽[1] 赵建路 默丽萍[2] 

机构地区：[1]河北师范大学实验中心,河北石家庄050016 [2]河北师范大学化学系,河北石家庄050016 [3]石家庄第二教育学院,河北石家庄050031

出　　处：《河北师范大学学报（自然科学版）》2000年第1期72-76,78,共6页Journal of Hebei Normal University：Natural Science

摘　　要：采用 TG-DTG技术研究了稀土铕 ( Eu3+ )与对硝基苯甲酸 ( p-NBA)及 2 ,2’-联吡啶 ( dipy)配合物在静态空气中的热分解过程 ,运用 Achar法和 Coats-Redfern法 ,推断出该配合物第 2～ 4步热分解的非等温动力学方程 .同时给出了相应的动力学补偿效应的表达式 .The thermal decomposition of the complex of europium p nitrobenzoate with 2,2' dipyridine and its kinetics were studied under the non isothermal condition in air by TG DTG methods.The intermadiate and residue for each decomposition were identified from TG curve.The non isothermal kinetic data were analyzed by the Achar method and the Coats Redferm method.The possible reaction mechanisms were investigated by comparing the kinetic parameters.The kinetic equation for the second,the third and the fouth stage can be expressed.The mathematical expression of the kinetic compensation effects of each stage of the thermal decomposition reaction have also been obtained.

关 键 词：热分解 非等温动力学 铕配合物 对硝基苯甲酸 

分 类 号：O614.338[理学—无机化学]