首页|a-SiW11Mn/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

a-SiW11Mn/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

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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R-(TBA)4H2[SiWIiMn(H20)O39]·14H2O的热解机理和动力学,采用了Doyle方程和Coats-Redfem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InA。
Sythesis and Non-isothermal Reaction Kinetics of a-SiWHMn and Tetrabutylammonium Charge-Transfer Complex
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.

Heteropolytungstates: charge-transfer: thermal decomposition: Non-isothermal reaction kinetics: tetrabutylammonium

佟恩华、马荣华

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齐齐哈尔大学化学化工学院,黑龙江齐齐哈尔161006

杂多酸盐:电荷转移 热分析 非等温动力学 四丁基溴化铵

黑龙江省教育厅基金资助

11531411

2012

广东化工
广东省石油化工研究院

广东化工

影响因子:0.288
ISSN:1007-1865
年,卷(期):2012.39(3)
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