| 微波辅助溶胶-凝胶法合成YMnO3纳米粉体 |
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| 引用本文： | 杨承燕,王玺堂,马妍,王周福,刘浩,秦梦黎.微波辅助溶胶-凝胶法合成YMnO3纳米粉体[J].红外与激光工程,2014,43(2):605-609. |
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| 作者姓名： | 杨承燕 王玺堂 马妍 王周福 刘浩 秦梦黎 |
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| 作者单位： | 1.武汉科技大学 耐火材料与高温陶瓷国家重点实验室培育基地,湖北 武汉 430081; |
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| 基金项目： | 国家自然科学基金(51202169);纳米矿物材料及应用教育部工程研究中心(中国地质大学)开放基金(CUGNGM201208) |
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| 摘 要： | 采用微波辅助溶胶-凝胶法制备了YMnO3纳米粉体，利用FTIR和TG-DSC对凝胶的组成及热分解过程进行分析，并通过XRD、FSEM、TEM和磁性能测试对制得的纳米粉体进行表征。结果表明:与传统的溶胶-凝胶法相比，该研究中采用的微波辅助溶胶-凝胶法可以在较短的制备时间内、较低的煅烧温度下得到单相的YMnO3粉体，且粉体颗粒细小，尺寸分布较均匀，平均粒径小于100 nm。磁性能研究结果表明制得的YMnO3纳米粉体在室温下表现为顺磁性特征。
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| 关 键 词： | YMnO3 微波辅助 溶胶-凝胶法 纳米粉体 |
| 收稿时间： | 2013-06-20 |
Synthesis of YMnO3 nano-powders by microwave-assisted sol-gel method |
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| Affiliation: | 1.State Key Laboratory Breeding Base of Refractories and Ceramics,Wuhan University of Science and Technology,Wuhan 430081,China;2.Engineering Research Center of Nano-Geo Materials of Ministry of Education,China University of Geosciences,Wuhan 430074,China |
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| Abstract: | YMnO3 nano-powders were synthesized by microwave-assisted sol-gel method. The composition and the thermo-decomposing process of the gel were studied by means of IR spectrum and TG-DSC analysis. The phase constitutution and particle morphology of the YMnO3 powders were characterized by XRD, FSEM and TEM. The magnetic properties of YMnO3 nano-powders were also studied. The results show that, by using microwave-assisted sol-gel method, nano-sized YMnO3 powders can be synthsized under lower calcined temperature in relatively shorter time compared with the traditional sol-gel method. The YMnO3 powders prepared by the microwave-assisted method have a uniform particle size smaller than 100 nm. The magnetic hysteresis loop result shows that YMnO3 nano-powders exhibit paramagnetic characteristic at room temperature. |
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