物理化学学报2008，Vol.24Issue(12)：2263-2267,5.
3-硝基邻苯二甲酸锆的制备热分解机理及非等温反应动力学
Preparation, Thermal Behavior and Non-isothermal Decomposition Reaction Kinetics of Zr(3-NO2-PHT)2·2H2O
摘要
Abstract
Zirconium 3-nitrophthalate (Zr(3-NO2-PHT)2·2H20) was synthesized using 3-nitrophthalic acid, sodium hydroxide, and zirconyl nitrate as raw materials. Its structure was determined by elemental analysis, X-ray fluorescence and FF-IR spectra. The thermal decomposition mechanism and kinetic parameters of the decomposition reaction for Zr(3-NO2-PHT)2·2H2O were investigated by temperature-programmed TG-DTG and condensed-phase thermolysis/Fr-IR techniques. A kinetic equation for the decomposition reaction was obtained. The results showed that Zr(3-NO2-PHT)2·2H2O underwent a four-stage decomposition process and that the main decomposition reaction occurred during the second process. The apparent activation energy (Ea) and pre-exponential factor (A) of the main decomposition reaction are 158.84 kJ·mol-1 and 109.85 S-1, respectively. The kinetic equation can thus be expressed as: doddt=109.85(1-α)e-1.91×104.关键词
3-硝基邻苯二甲酸锆/热分解机理/非等温反应动力学Key words
Zr(3-NO2-PHT)2·2H2O/Thermal decomposition mechanism/Nonisothermal reaction kinetics分类
化学化工引用本文复制引用
张衡,赵凤起,仪建华,张晓宏,胡荣祖,徐司雨,任晓宁..3-硝基邻苯二甲酸锆的制备热分解机理及非等温反应动力学[J].物理化学学报,2008,24(12):2263-2267,5.基金项目
国家自然科学基金(20573098)资助项目 （20573098）
