Synthesis of polycrystalline SnO2 nanotubes on carbon nanotube template for anode material of lithium-ion battery
Synthesis of polycrystalline SnO2 nanotubes on carbon nanotube template for anode material of lithium-ion battery
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DOI：
10.1016/j.materresbull.2008.04.001
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发表时间：
2009-01
影响因子：
5.4
通讯作者：
N. Du;Hui Zhang;Bindi Chen;Xiangyang Ma;Xiaohua Huang;J. Tu;Deren Yang
中科院分区：
文献类型：
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作者：
N. Du;Hui Zhang;Bindi Chen;Xiangyang Ma;Xiaohua Huang;J. Tu;Deren Yang
以碳纳米管为模板，采用逐层法制备了多晶二氧化锡纳米管。首先，用聚电解质对碳纳米管进行表面修饰。然后，通过氧化还原过程在碳纳米管的正电荷表面形成一层均匀的氧化锡纳米颗粒。最后，在650℃空气中焙烧3h，制得多晶二氧化锡纳米管。合成的多晶纳米管具有较大的比表面积，具有较好的储锂容量和循环性能，在锂离子电池中具有潜在的应用前景。
Polycrystalline tin oxide nanotubes have been prepared by a layer-by-layer technique on carbon nanotubes template. Firstly, the surface of carbon nanotubes was modified by polyelectrolyte. Then, a uniform layer of tin oxide nanoparticles was formed on the positive charged surface of carbon nanotubes via a redox process. At last, the polycrystalline tin oxide nanotubes were synthesized after calcination at 650°C in air for 3h. The as-synthesized polycrystalline nanotubes with large surface area exhibit finer lithium storage capacity and cycling performance, which shows the potentially interesting application in lithium-ion battery.