Kinetics Study on the Thermal Decomposition of Europium p-methyl-benzoate Complex with 1,10-penanthroline under Non-isothermal Con-ditions

作     者：Huifang Yang, Jianjun Zhang, Ruifen Wang (Department of Material, Shjiazhuang Railway College, Shijiazhuang 050043, China Experimental Center, Hebei Normal University, Shijiazhuang 050016, China) 

作者机构：石家庄铁道学院 河北 石家庄 050016 河北师范大学 河北 石家庄 050043 河北师范大学 河北 石家庄 050016 

出 版 物：《Rare Metals》 (稀有金属（英文版）)

年 卷 期：2001年第20卷第2期

页      面：133-136页

核心收录：

学科分类：081704[工学-应用化学] 07[理学] 070304[理学-物理化学(含∶化学物理)] 08[工学] 0817[工学-化学工程与技术] 0703[理学-化学] 

基　　金：This project was financially supported by the Education Department of Hebei Province.] 

主　　题：thermal decomposition non-isothermal kinetics mechanisms Eu(III) complex 

摘      要：The thermal decomposition reaction of Eu-2(p-MBA)(6)(PHEN)(2) (p-MBA=CH3C6H4COO, methylbenzoate; PHEN=C12H8N2, 1,10-phenanthroline) was studied in a static atmosphere using TG-DTG method. The thermal decomposition process of the complex was determined and its kinetics was investigated. Kinetic parameters were obtained from the analysis of TG-DTG curves by means of the Achar method and the Madhusudanan-Krishnan-Ninan (MKN) method. The most probable mechanism functions of the thermal decomposition reaction for the first stage are: f(alpha) =(1-alpha)(2), g(alpha) = (1-alpha)(-1)-1. The activation energy for the first stage is 255.18 kJ/mol, the entropy of activation DeltaS is 227.32 J/mol and the Gibbs free energy of activation DeltaG is 128.04 W/mol.