首页|α-SiW11Al/四丁基铵盐电荷转移配合物的合成及热分解动力学研究

α-SiW11Al/四丁基铵盐电荷转移配合物的合成及热分解动力学研究

Synthesis and thermal decomposition reaction kinetics of α-SiW11 Al and tetrabutylammonium charge-transfer complex

扫码查看
用室温固相法合成了铝取代杂多酸盐四丁基铵盐电荷转移配合物a-TBA5[SiW11O39Al(H2O)]·xH2O,用元素分析、IR、TG-DTG、XRD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.同时,采用TG-DTA技术研究了标题化合物在氮气气氛中的热分解机理及非等温动力学,用Coats-RedferR的积分法和Achar-Brindley-sharp-wendwor 的微商法对配合物的非等温动力学数据进行分析,得出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 α-TBA5 [ SiW11 O39 Al-(H2O) ]·xH2O were synthesized by solid phase reaction in room temprature and was characterized by elementary analysis IR,TG-DTA,X-ray diffraction. The results indicate that heteropoly anion still remains Keggin structure in supennolecular compounds. The non-isothermal kinetic were investigated with the Used Coats-Redfern integral method,and Achar-Brindley-Sharp-Wendworth differential method. The mechanism function, kinetic parameters,apparent activation energy E and preexponential factor InA of the thermal decomposition were obtained.

heteropolytungstatescharge-transferthermal decompositionnon-isothermal reaction kineticstetrabutylammonium

马荣华、魏婷婷、赵春艳

展开 >

齐齐哈尔大学化学化工学院,黑龙江,齐齐哈尔,161006

杂多钨酸盐 电荷转移 热分解 非等温动力学 四丁基铵盐

黑龙江省教育厅基金资助项目黑龙江省自然科学基金资助项目

11531411B2007-15

2011

化学试剂
中国分析测试协会,国药集团化学试剂有限公司,北京国化精试咨询有限公司

化学试剂

CSTPCDCSCD北大核心
影响因子:0.295
ISSN:0258-3283
年,卷(期):2011.33(4)
  • 7