| 溶胶-凝胶前驱体喷雾干燥法制备钠离子电池Na_2Ti_3O_7@MWCNTs负极材料 |
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| 引用本文： | 邹崴,王影,黄宗令,李晶泽.溶胶-凝胶前驱体喷雾干燥法制备钠离子电池Na_2Ti_3O_7@MWCNTs负极材料[J].中国科学:化学,2014(8):1347-1353. |
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| 作者姓名： | 邹崴 王影 黄宗令 李晶泽 |
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| 作者单位： | 电子薄膜与集成器件国家重点实验室,电子科技大学微电子与固体电子学院,成都610054 |
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| 基金项目： | 国家自然科学基金（21073029,11234013,51211140045）; 教育部新世纪人才计划资助项目（NCET-10-0296）; 中央高校基本科研业务费项目（ZYGX2012Z003）资助 |
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| 摘 要： | 本文采用溶胶-凝胶前驱体喷雾干燥法制备了Na2Ti3O7@MWCNTs(多壁碳纳米管)复合材料,用于钠离子电池的负极.这种方法得到的Na2Ti3O7球形壳层包裹纳米Na2Ti3O7@MWCNTs复合材料的结构与用固相烧结法、简单溶胶-凝胶法制备的Na2Ti3O7-MWCNTs复合材料在电化学性能上相比,具有倍率性能好、小电流下50次循环后比容量衰减小等优势.
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| 关 键 词： | 钠离子电池 NaTiO 碳纳米管 溶胶-凝胶 喷雾干燥 |
Synthesis of Na2TiaO7@MWCNTs anode material by spray-drying method of sol-gel precursor for sodium-ion batteries |
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| ZOU Wei,WANG Ying,HUANG ZongLing,LI JingZe.Synthesis of Na2TiaO7@MWCNTs anode material by spray-drying method of sol-gel precursor for sodium-ion batteries[J].Scientia Sinica Chimica,2014(8):1347-1353. |
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| Authors: | ZOU Wei WANG Ying HUANG ZongLing LI JingZe |
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| Institution: | ( State Key Laboratory of Electronic Thin Films and Integrated Devices; School of Microelectronics and Solid-state Electronics, University of Electronic Science and Technology of China, Chengdu 610054, China) |
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| Abstract: | We reported Na2Ti3O7@multiwalled carbon nanotubes （MWCNTs） composite as advanced anode material for sodium-ion batteries. Na2Ti3Oy@MWCNTs nanocomposite was synthesized by spray-drying of sol-gel precursor, displaying a particular core-shell structure, where the core consisted of Na2Ti3O7 coated MWCNTs and the shell was made of well crystallized Na2Ti3O7 microspheres. NazTi3OT@MWCNTs exhibited much better rate capability and cycling performance with respect to pristine Na2Ti3O7 directly prepared by solid state reaction and Na2Ti3O7- MWCNTs composite synthesized by sol-gel reaction. The combination of spray-drying and sol-gel method is one of the promising tools to improve the electrochemical performance of the electrode materials for advanced sodium- ion batteries. |
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| Keywords: | sodium battery Na2Ti3O7 multiwalled carbon nanotubes sol-gel spray-drying |
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