| Bi3.25La0.75Ti3O12纳米管的制备工艺研究 |
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| 引用本文： | 王 文,柯 华,孟祥鹤,王奥培,冯金彪,贾德昌,周 玉.Bi3.25La0.75Ti3O12纳米管的制备工艺研究[J].稀有金属材料与工程,2013,42(9):1957-1960. |
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| 作者姓名： | 王 文 柯 华 孟祥鹤 王奥培 冯金彪 贾德昌 周 玉 |
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| 作者单位： | 哈尔滨工业大学，黑龙江 哈尔滨 150001 |
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| 基金项目： | 国家自然科学基金(50872024, 51021002); 哈尔滨市科技创新基金(2011RFLXG005) |
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| 摘 要： | 研究了一种Bi3.25La0.75Ti3O12 (BLT)铁电存储材料纳米管的简单有效合成方法。通过阳极氧化铝模板(AAO)辅助溶胶凝胶法，合成了BLT纳米管。其基本过程是以次硝酸铋、硝酸镧和钛酸四丁酯为原料，以冰醋酸和乙二醇甲醚为溶剂配制BLT溶胶，然后将BLT溶胶滴在AAO模板表面，浸润后烘干并反复多次，而后将材料在500 ℃下保温1 h，除去有机物，最后在750 ℃下保温30 min晶化，用KOH腐蚀去除氧化铝模板，即得到BLT纳米管。结果表明，BLT纳米管具有117]择优取向；BLT纳米管管壁光滑，直径与模板孔径相当，约300 nm，且分布均匀，管壁厚度约25 nm，纳米管是多晶体，由粒径为8~12 nm晶粒组成
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| 关 键 词： | Bi3.25La0.75Ti3O12纳米管 AAO模板 溶胶-凝胶法 |
| 收稿时间： | 2012/9/30 0:00:00 |
Synthesis of Bi3.25La0.75Ti3O12 Nanotubes |
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| Wang Wen,Ke Hu,Meng Xianghe,Wang Aopei,Feng Jinbiao,Jia Dechang and Zhou Yu.Synthesis of Bi3.25La0.75Ti3O12 Nanotubes[J].Rare Metal Materials and Engineering,2013,42(9):1957-1960. |
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| Authors: | Wang Wen Ke Hu Meng Xianghe Wang Aopei Feng Jinbiao Jia Dechang and Zhou Yu |
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| Affiliation: | Harbin Institute of Technology, Harbin 150001, China |
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| Abstract: | Bi3.25La0.75Ti3O12 (BLT) nanotubes were synthesized by dipping BLT sol precursor into an anodic aluminum oxide template (AAO). The results indicate that using 4BiNO3(OH)2×BiO(OH), La(NO3)3×6H2O and Ti(C4H9O)4 as starting materials, stable BLT sol can be prepared with solvent of acetic acid and ethylene glycol monomethyl ether. Pure perovskite BLT can be synthesized after calcining the gel that comes from sol with acetic acid and ethylene glycol monomethyl ether as solvent at 500 °C for 1 h and 750 °C for 30 min. BLT nanotubes are stacks of BLT polycrystalline of 8~12 nm and they have a wall thickness of 25 nm and diameter of 300 nm |
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| Keywords: | Bi3 25La0 75Ti3O12 nanotubes AAO template sol-gel method |
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