摘要
采用水热法合成了稀土铕、苯甲酸(C7H6O2)和1,2-二(4-吡啶基)乙烯(C12H10N2)的固态新配合物.通过元素分析和化学分析的方法,确定了配合物的组成为Eu(C7H5O2)(3C12H10N2)(H2O)3;用红外光谱和荧光谱等技术对配合物进行了表征,该配合物在室温受激发射红色荧光;用TG-DTG法研究了它的热分解行为;用"非模型等转化率法"研究了热分解脱水过程的动力学,获得其表观活化能和指前因子数值范围、最可机理函数和模型函数.
The new solid complex were self-assembled from benzoic acid(C7H6O2),1,2-Di-(4-pyridyl)-ethylen(C12H10N2)and corresponding europium chlorides under hydrothermal conditions.The composition of the complex was confirmed to be Eu(C7H5O2)(3C12H10N2)(H2O)3,which is characterized by means of chemical and elemental analyses,FT-IR.Its thermal behavior was investigated by TG-DTG method;Furthermore,the decomposition process was studied by'model-free isoconversional method'in order to obtain the apparent activation energy,the preexponential constant,the mostprobable mechanism function and the kinetic model function.
出处
《河南科学》
2009年第A05期530-535,共6页
Henan Science
基金
国家自然科学基金(20773104)
教育部重点科研基金(810243)
陕西省自然科学基金项目(SJ08B11)
陕西省教育厅科研基金(08JK490)
延安大学校级科研项目(2009)
关键词
合成
表征
荧光
热分解动力学
synthesis
characterization
fluorescence
thermal decomposition kinetics properties
