| 五氧化二钒空心球制备及其作为镁二次电池正极材料 |
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| 引用本文： | 杜鑫川,黄岗,王立民.五氧化二钒空心球制备及其作为镁二次电池正极材料[J].应用化学,2015,32(12):0-0. |
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| 作者姓名： | 杜鑫川 黄岗 王立民 |
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| 作者单位： | 中国科学院长春应用化学研究所 稀土资源利用国家重点实验室 长春 130022
;中国科学院大学 北京 100049
;常州储能材料与器件研究院 江苏 常州 213000 |
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| 基金项目： | 国家自然科学基金(20111061)资助项目 |
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| 摘 要： | 利用碳球作为模板,通过与异丙醇氧钒的溶剂热反应制备了五氧化二钒(V2O5)空心球。 采用扫描电子显微镜(SEM)和透射电子显微镜(TEM)等技术手段对V2O5空心球进行了表征。 实验结果表明,V2O5空心球的直径约为1.5 μm,壁厚约100 nm。 将V2O5空心球作为镁二次电池的正极,在0.2 C充放电条件下,材料的首次放电比容量达140 mA·h/g,经20次循环后容量为110 mA·h/g。
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| 关 键 词： | V2O5 空心球 镁二次电池 正极材料 |
| 收稿时间： | 2015-07-21 |
Synthesis of Vanadium Pentoxide Hollow Microspheres and Application as Cathode in Rechargeable Mg Batteries |
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| DU Xinchuan,HUANG Gang,WANG Limin.Synthesis of Vanadium Pentoxide Hollow Microspheres and Application as Cathode in Rechargeable Mg Batteries[J].Chinese Journal of Applied Chemistry,2015,32(12):0-0. |
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| Authors: | DU Xinchuan HUANG Gang WANG Limin |
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| Institution: | State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry,CAS,Changchun 130022,China;University of Chinese Academy of Science,Beijing 130049,China;Changzhou Institute of Energy Storage Materials & Devices,Changzhou,Jiangsu 213000,China |
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| Abstract: | With carbon spheres(CS) as the template, vanadium pentoxide(V2O5) hollow microspheres were synthesized by the solvothermal reaction of vanadium oxytriisopropoxide(VOT). The structure, morphology and component of V2O5 hollow microspheres were characterized by scanning electron microscopy(SEM) and transmission electron microscopy(TEM). The results reveal that V2O5 hollow microspheres are perfectly generated with the diameter of ~1.5 μm and the wall thickness of ~100 nm. As a cathode material for rechargeable Mg batteries, the initial discharge capacity is up to 140 mA·h/g at the rate of 0.2 C and maintains 110 mA·h/g after 20 cycles. |
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| Keywords: | vanadium pentoxide hollow microspheres rechargeable magnesium batteries cathode material |
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