| α-K_4H_2[SiW_(11)Co(H_2O)O_(39)]·xH_2O的热稳定性及动力学三因素的测定 |
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| 引用本文： | 朱翠娟,马荣华,冯锐.α-K_4H_2[SiW_(11)Co(H_2O)O_(39)]·xH_2O的热稳定性及动力学三因素的测定[J].高师理科学刊,2006,26(1):56-59. |
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| 作者姓名： | 朱翠娟 马荣华 冯锐 |
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| 作者单位： | 1. 齐齐哈尔大学,化学与化学工程学院,黑龙江,齐齐哈尔,161006
2. 嫩江县高级中学,黑龙江,嫩江,161400 |
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| 摘 要： | 通过热重-差热分析(TG-DTA)、溶解性实验、变温红外等手段,对K eggin结构杂多化合物α-K4H2SiW11C o(H2O)O39].xH2O的热稳定性及动力学三因素进行了系统测定,得出热分解反应的积分动力学方程g(α)=1-(1-α)1/3]1/2、活化能Eα=11.42kJ/m o l、指前因子lnA=13.25~14.26.
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| 关 键 词： | 热稳定性 动力学三因素 积分动力学方程 活化能 指前因子 杂多化合物 |
| 文章编号： | 1007-9831(2006)01-0056-04 |
| 修稿时间： | 2005年12月19 |
Determination of kinetic triplets and thermal stability of α -K4H2 [ SiW11 Co(H2O) O39 ] · x H2O |
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| ZHU Cui-juan,MA Rong-hua,FENG Rui.Determination of kinetic triplets and thermal stability of α -K4H2 [ SiW11 Co(H2O) O39 ] · x H2O[J].Journal of Science of Teachers＇College and University,2006,26(1):56-59. |
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| Authors: | ZHU Cui-juan MA Rong-hua FENG Rui |
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| Abstract: | The thermal stability of α-K_4H_2SiW_(11)Co(H_2O)O_(39)]·xH_2O was studied by TG-DTA,the solubility experiment and temperature-changing IR spectroscopy techniques.Determined kinetic triplets,it was found that the integral kinetic equation for the decomposition of α-K_4H_2SiW_(11)Co(H_2O)O_(39)]·xH_2O is g(α)=1-(1α)~(1/3)]~(1/2),activation energy is E_a=11.42 kJ/mol,pre-exponential factor is lnA=13.25～14.26. |
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| Keywords: | thermal stability kinetic triplets integral kinetic equation activation energy pre-exponential factor heteropoly compound |
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