摘要
The complex of [Sm(p-MOBA)3phen]2 (p-MOBA, p-methoxybenzoate; phen, 1,10-phenanthroline) was pre- pared and characterized by elemental analysis, IR, and UV spectroscopy. The thermal decomposition of the [Sm(p-MOBA)3phen]2 complex and its kinetics were studied under a static air atmosphere by TG-DTG methods. The in- termediate and residue for each decomposition stage were identified from the TG curve. The kinetic parameters and mecha- nisms of the first decomposition stage were obtained from the analysis of the TG-DTG curves by a new method of process- ing the data of thermal analysis kinetics. The lifetime equation at a mass loss of 10% was deduced as lnτ = – 30.6795 + 21034.56/T by isothermal thermogravimetric analysis.
The complex of [Sm(p-MOBA)3phen]2 (p-MOBA, p-methoxybenzoate; phen,1 10-phenanthroline) was prepared and characterized by elemental analysis, IR, and UV spectroscopy. The thermal decomposition of the [Sm(p-MOBA)sphen]2 complex and its kinetics were studied under a static air atmosphere by TG-DTG methods. The intermediate and residue for each decomposition stage were identified from the TG curve. The kinetic parameters and mecha- nisms of the first decomposition stage were obtained from the analysis of the TG-DTG curves by a new method of processing the data of thermal analysis kinetics. The lifetime equation at a mass loss of 10% was deduced as lnr= - 30.6795 + 21034.56/Tby isothermal thermogravimelric analysis.
基金
the Natural Science Foundation of Hebei Province (No. B2007000237)
Hebei Education Department (No. 2004325)
Hebei Normal University (No. L2006Z06, No. L2005Y12).
关键词
无机化学
邻二氮杂菲
钐复合物
稀有金属
inorganic chemistry
p-methoxybenzoic acid
1,10-phenanthroline
samarium complex
thermal decomposition
non-isothermal kinetics
TG-DTG