| 溶胶凝胶法合成Li3V6O16及其电化学性能研究 |
| Sol-Gel Synthesis and Electrochemical Study of Li3V6O16 |
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| 摘要: 本文以双氧水为配位剂，以CH3COOLi·2H2O和V2O5为原料，采用溶胶凝胶法合成了一种新型的晶体Li3V6O16。随后分别采用X射线衍射(XRD)、扫描电子显微镜(SEM)、透射电子显微镜(TEM)和电子衍射(SAED)、X光电子能谱(XPS)和充放电测试等手段对材料进行了表征。SEM观察表明，产物主要是表面比较光滑的纳米片状晶体，TEM和SAED研究都证实了XRD和SEM的研究结果。充放电测试结果表明，该物质具有较高的比容量、良好的可逆性和循环稳定性。 |
| 关键词: 溶胶凝胶法 Li3V6O16 电化学性能 |
| 基金项目: |
| Abstract: In this paper, a new type of crystal Li3V6O16 was synthesized by sol-gel method, using hydrogen peroxide as the complexing agent, CH3COOLi·2H2O and V2O5 as raw material. The prepared product was characterized by X-ray diffraction(XRD), scanning electron microscopy (SEM), transmission electron microscopy(TEM) and selected area electron diffraction (SAED), X-ray photoelectron spectroscopy (XPS) and charge-discharge test.SEM observation showed that the nano-flake crystals possesses relatively smooth surface.TEM and SAED studies confirmed the results indicated by XRD and SEM investigations. The results of charge-discharge test demonstrated that the active material revealed a high specific capacity, excellent cycle stability and reversibility. |
| Keywords: sol-gel method Li3V6O16 electrochemical performances |
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| 摘要点击次数: 2100 |
| 全文下载次数: 3026 |
| 张孟雄,张友祥.溶胶凝胶法合成Li3V6O16及其电化学性能研究[J].无机化学学报,2012,28(10):2065-2070. |
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