| MoO3纳米带/RGO复合材料的制备及其电化学性能研究 |
| MoO3 nanobelts / reduced graphene oxide (RGO) composites as a high-performance anode material for lithium ion batteries |
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| 摘要: 以水杨酸为模板剂和还原剂，采用水热法制备得到了一种MoO3纳米带/RGO复合材料。利用XRD、SEM、TEM、拉曼光谱、恒流充放电、交流阻抗等手段对样品的结构、形貌以及电化学性能进行表征。测试结果表明，MoO3纳米带/RGO复合材料作为锂离子电池负极材料，在50 mA?g-1的电流密度下可逆比容量为1000 mAh?g-1，循环50次后比容量还保持在950 mAh?g-1，相比于MoO3纳米带其容量保持能力和循环性能得到了显著改善。 |
| 关键词: MoO3纳米带,还原氧化石墨烯,锂离子电池,负极材料 |
| 基金项目: 其它:国家重大科学研究计划青年科学家专题(2013CB934800);国家自然科学基金(21222302) |
| Abstract: MoO3 nanobelts/RGO composites were obtained through a facile and efficient hydrothermal procedure by using organic compound sodium salicylate as both structure-directing agent and reducing agent. The crystal structure, morphologies and electrochemical performances of the as-prepared samples were characterized by powder X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), Raman spectroscopy, galvanostatic charge/discharge test and electrochemical impedance spectroscopy (EIS). The hybrid material shows a high specific capacity of 1000 mAh?g-1 with a good cycling stability as an anode material for lithium ion batteries, which has a much enhanced performance compared to bare MoO3 nanobelts. |
| Keywords: MoO3 nanobelts, Reduced graphene oxide (RGO), Lithium ion batteries, anode materials |
| 投稿时间：2014-11-18 修订日期：2015-01-22 |
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