| 锂离子电池负极材料立方相氮化铌纳米材料的制备与性能 |
| Cubic Niobium Nitride Nanomaterials as Anode Materiasl in Lithium Ion Rechargeable Battery: Synthesis and Property |
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| 摘要: 采用固相合成方法,在反应釜中350 ℃下合成了氮化铌纳米材料.X射线粉末衍射图表明所得氮化铌样品为立方相(空间群：Fm3m).高分辨透射电子显微镜与场发射扫描电子显微镜显示所制得的氮化铌样品直径分布在30~300 nm之间.热重分析表明所得材料在空气中具有良好的抗氧化性能.将氮化铌与锂片组装成纽扣电池进行充放电测试,测试结果显示其首次充电比容量可达314 mAh·g-1.经50次充放电循环后,容量保持在228 mAh·g-1,具有较好的循环稳定性. |
| 关键词: 氮化铌 纳米材料 锂离子电池 |
| 基金项目: 国家自然科学基金(No.11179043,20971079),973计划(No.2011CB935901)资助项目. |
| Abstract: Niobium nitride (NbN) nanoparticles have been synthesized by using a solid state reaction method in an autoclave at 350 ℃. According to the X-ray powder diffraction pattern, the NbN product can be index as cubic Fm3m space group. High-resolution electron microscopy and scanning electron microscope investigations show that the NbN particles obtained have diameters ranging from 30 to 300 nm. TGA curves indicate that the sample has good stability before 540 °C in air. The NbN sample combined with Li sheet was assembled into a coin cell. Its first charge specific capacity can reach 314 mAh·g-1. After 50 cycles, its capacity remains 228 mAh·g-1, showing a good cycling stability. |
| Keywords: niobium nitride nanometer material lithium battery |
| 投稿时间：2012-12-31 修订日期：2012-05-24 |
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| 尹从明,徐立强,鞠治成,钱逸泰.锂离子电池负极材料立方相氮化铌纳米材料的制备与性能[J].无机化学学报,2012,28(12):2612-@. |
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