| 氧化锰纳米颗粒的低温水热合成及其电化学性能 |
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| 引用本文： | 朱刚,王留昌,邸琴,韩枭,薛敏.氧化锰纳米颗粒的低温水热合成及其电化学性能[J].硅酸盐通报,2018,37(2):682-685. |
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| 作者姓名： | 朱刚 王留昌 邸琴 韩枭 薛敏 |
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| 作者单位： | 西安文理学院化学工程学院,陕西省表面工程与再制造重点实验室,西安710065 |
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| 基金项目： | 国家自然科学基金(21403166)%西安市科技计划项目(2016CXWL08,CXY1443WL21)%2016年陕西省大学生创新创业项目(20162331) |
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| 摘 要： | 基于高锰酸钾和葡萄糖之间的氧化还原反应,采用低温水热法合成了氧化锰纳米颗粒材料.应用X-射线衍射、扫描电镜和氮气吸脱附技术对所得材料的结构、形貌和表面性质进行表征.结果表明,所得材料为低结晶性Birnessite型层状氧化锰,比表面积为129 m2/g.电化学测试结果显示,氧化锰纳米颗粒负极材料具有较高的比容量、较好的循环性能和倍率性能.在100 mA/g的电流密度下,首次放电比容量为635 mAh/g.恒流充放电130次后,容量保持率为65.4％.
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| 关 键 词： | 氧化锰纳米颗粒 水热合成 大比表面积 电极材料 |
Low-temperature Hydrothermal Synthesis and Electrochemical Performance of Manganese Oxide Nanoparticles |
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| ZHU Gang,WANG Liu-chang,DI Qin,HAN Xiao,XUE Min.Low-temperature Hydrothermal Synthesis and Electrochemical Performance of Manganese Oxide Nanoparticles[J].Bulletin of the Chinese Ceramic Society,2018,37(2):682-685. |
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| Authors: | ZHU Gang WANG Liu-chang DI Qin HAN Xiao XUE Min |
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| Abstract: | Manganese oxide nanoparticles have been synthesized based on redox reaction between KMnO4 and glucose with a low-temperature hydrothermal method.The obtained material is characterized by X-ray diffraction,scanning electron microscopy and N2 adsorption-desorption.Results show that the product is Birnessite-type layered manganese oxide with low crystallinity and the specific surface area is 129 m2/g.Electrochemical measurements indicate manganese oxide has high specific capacity,good cycling performance and rate capability as an anode material.It exhibits an initial discharge capacity of 635 mAh/g at the current density of 100 mA/g.And the capacity retention reaches 65.4％ after 130 cycles. |
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| Keywords: | manganese oxide nanoparticle hydrothermal synthesis large specific surface area electrode material |
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