α-SiW_(11)Mn/四丁基溴化铵电荷转移配合物的合成及热分解动力学研究

Sythesis and Non–isothermal Reaction Kinetics of α-SiW_(11)Mn and Tetrabutylammonium Charge-Transfer Complex

文章合成了Keggin结构锰取代杂多钨硅酸盐四丁基溴化胺电荷转移配合物,用元素分析、UV、TG-DTG等方法对其进行了表征。结果显示该化合物仍保持杂多阴离子的Keggin结构的基本特征。用TG-DTG的方法研究了α-(TBA)4H2[SiW11Mn(H2O)O39].14H2O的热解机理和动力学,采用了Doyle方程和Coats-Redfern方程对非等温动力学数据进行了分析,得到了热分解反应的机理函数,动力学参数以及分解反应的活化能E和lnA。

Charge-Transfer Complex ct-TBA4H2 [SiWIIO39Mn（H20）].xH20 were synthesized by solid phase in room tempreture. It was characterized by means of elementary analysis UV, TG-DT（2 The results indicate that heteropoly anion still remains its Keggin structure in supermolecular compounds. The non-isothermalkinetic data were analyzed with the Used Coats-Redfern method, and Doyle method. The mechanism function, kinetic parameters, apparent activation energy E and pre-exponential factor lnA of the thermal Decomposition were obtained.