| 微乳液法制备纳米草酸钆的热解机理的研究 |
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| 引用本文： | 焦程敏,卢文庆,程青,王鹏飞. 微乳液法制备纳米草酸钆的热解机理的研究[J]. 无机化学学报, 2006, 22(1): 166-170 |
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| 作者姓名： | 焦程敏 卢文庆 程青 王鹏飞 |
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| 作者单位： | 1. 江苏省生物医药功能材料工程研究中心南京师范大学化学与环境科学学院,南京,210097
2. 南京大学固体微结构物理国家重点实验室,南京,210093 |
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| 基金项目： | 南京大学校科研和教改项目 |
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| 摘 要： | Gd2O3∶Tb3+ luminescent nanoparticles were prepared by the thermal decomposition of the nanosized oxlate prepared in the reverse microemulsions based on triton X-100 / n-hexyl alcohol, n-octane, and water. From TG-DTA, XRD and FTIR analyses, the mechanism of thermal decomposition of the nanosized oxalate precursor is suggested as follows: Gd2(C2O4)3·10H2O → Gd2(C2O4)3 + 10H2O, Gd2(C2O4)3 → Gd2O2(CO3) + 3CO +2CO2, Gd2O2(CO3) → Gd2O3 + CO2. The kinetic parameters of thermal decomposition reaction-activation energy E of stage 2 and 3 are 194.6 kJ·mol-1, 110.9 kJ·mol-1, respectively, using Ozawa method. And the reaction order n is 2.9 and 0.43, respectively, according to the TG curves.
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| 关 键 词： | Gd2O3∶Tb3+纳米荧光粒子； 纳米草酸钆； 微乳液法； 热解机理； 活化能； 反应级数 |
| 文章编号： | 1001-4861（2006）01-0166-05 |
| 收稿时间： | 2005-06-27 |
| 修稿时间： | 2005-10-30 |
Thermal Decomposition of Nanosized Oxalate Prepared by Microemulsion |
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| JIAO Cheng-Min,LU Wen-Qing,CHENG Qing and WANG Peng-Fei. Thermal Decomposition of Nanosized Oxalate Prepared by Microemulsion[J]. Chinese Journal of Inorganic Chemistry, 2006, 22(1): 166-170 |
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| Authors: | JIAO Cheng-Min LU Wen-Qing CHENG Qing WANG Peng-Fei |
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| Affiliation: | Jiangsu Reserch Center of Bio-medical Functional Material Engineering, School of Chemistry and Environmental Science, Nanjing Normal University, Nanjing 210097,Jiangsu Reserch Center of Bio-medical Functional Material Engineering, School of Chemistry and Environmental Science, Nanjing Normal University, Nanjing 210097,Jiangsu Reserch Center of Bio-medical Functional Material Engineering, School of Chemistry and Environmental Science, Nanjing Normal University, Nanjing 210097 and National Key Laboratory of Solid State Microstructures, Nanjing University, Nanjing 210093 |
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