| 溶胶-凝胶法制备硼酸镁纳米棒 |
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| 引用本文： | 江继伟,汪雷,杨青,杨德仁.溶胶-凝胶法制备硼酸镁纳米棒[J].无机材料学报,2006,21(4):833-837. |
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| 作者姓名： | 江继伟 汪雷 杨青 杨德仁 |
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| 作者单位： | 浙江大学硅材料国家重点实验室, 杭州 310027 |
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| 摘 要： | 以硝酸镁、硼酸、柠檬酸为原料, 利用溶胶-凝胶法及不同温度后续煅烧制备了硼酸镁(MgB4O7和Mg2B2O5)纳米棒. 用X射线衍射(XRD)分析了纳米棒的结构, 用扫描电子显微镜(SEM)和透射电子显微镜(TEM)观察了纳米棒的形貌. 实验结果表明, 750℃煅烧产物为MgB4O7纳米棒, 950℃煅烧产物为Mg2B2O5纳米棒, 纳米棒的径长比可以通过调节原料硝酸镁和硼酸的比例来控制. 用自催化机理解释了硼酸镁纳米棒的生长机理.
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| 关 键 词： | 溶胶-凝胶法 硼酸镁 纳米棒 |
| 文章编号： | 1000-324X（2006）04-0833-05 |
| 收稿时间： | 07 11 2005 12:00AM |
| 修稿时间： | 2005-07-112005-10-14 |
Synthesis of Magnesium Borate Nanorods by Sol-Gel Process |
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| JIANG Ji-Wei,WANG Lei,YANG Qing,YANG De-Ren.Synthesis of Magnesium Borate Nanorods by Sol-Gel Process[J].Journal of Inorganic Materials,2006,21(4):833-837. |
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| Authors: | JIANG Ji-Wei WANG Lei YANG Qing YANG De-Ren |
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| Affiliation: | State Key Lab of Silicon Materials, Zhejing University, Hangzhou 310027, China
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| Abstract: | The magnesium borate (MgB4O7 and Mg2B2O5) nanorods were fabricated with magnesium nitrate, boric acid and citric acid as the starting reagents by the sol-gel method. The structures and morphologies of the nanorods were characterized by X-ray diffraction (XRD), scanning electron microscope (SEM) and transmission electron microscope (TEM). The results show that the products synthesized by calcining were MgB4O7 at 750 ℃ and Mg2B2O5 at 950℃. The ratios of diameter and length of the nanorods can be controlled by adjusting the proportion of Mg(NO3)2 and H3BO3. The self-catalytic mechanism was used to explain the growth of the magnesium borate nanorods. |
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| Keywords: | sol-gel magnesium borate nanorods |
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