| 尖晶石型Li4Ti5O12纳米粉体的合成 |
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| 引用本文： | 董殿权,郑春辉. 尖晶石型Li4Ti5O12纳米粉体的合成[J]. 青岛科技大学学报(自然科学版), 2007, 28(2): 103-106 |
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| 作者姓名： | 董殿权 郑春辉 |
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| 作者单位： | 青岛科技大学,化工学院,山东,青岛,266042;青岛科技大学,化工学院,山东,青岛,266042 |
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| 摘 要： | 用溶胶-凝胶法、沉淀-结晶法、共研磨-结晶法3种不同的合成方法合成出尖晶石型Li4Ti5O12。产物分别在不同温度下焙烧,经XRD测定,选择最佳制备条件为:溶胶-凝胶法,合成温度700-800℃,原料摩尔配比n(Li)/n(Ti)=0.8,焙烧时间4 h。采用TG-DSC测试方法研究了凝胶粉体的热分解和相转变过程。
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| 关 键 词： | Li4Ti5O12 溶胶-凝胶法 沉淀-结晶法 共研磨-结晶法 |
| 文章编号： | 1672-6987(2007)02-0103-04 |
| 修稿时间： | 2006-09-29 |
Synthesis of Nanocrystalline Li4Ti5O12 Spinel Powders |
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| DONG Dian-quan,ZHENG Chun-hui. Synthesis of Nanocrystalline Li4Ti5O12 Spinel Powders[J]. Journal of Qingdao University of Science and Technology:Natutral Science Edition, 2007, 28(2): 103-106 |
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| Authors: | DONG Dian-quan ZHENG Chun-hui |
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| Abstract: | The nanometer powder of Li4Ti5O12 with a spinal structure was prepared by sol-gel,precipitation-crystallization,and grinding-crystallization methods.The products obtained by sintering at different temperatures have been characterized by TG-DSC and XRD.The best synthesis condition can be concluded as follows: sol-gel method;temperature at 700～800 ℃ for 4 h;n(Li)/n(Ti) =0.8.The thermal behavior and phase transformation of the gels were investigated by the differential thermogravimetry-scaning calorimetry(TG-DSC). |
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| Keywords: | Li4Ti5O12 |
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