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One-dimensional MoO_3 coated by carbon for supercapacitor with enhanced electrochemical performance

机译：一维碳包覆的MoO_3用于超级电容器，具有增强的电化学性能

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摘要

MoO3, as a potential electrode material in energy storage, has recently been attracted increasing attention in supercapacitor. However, due to the poor electrical conductivity of MoO3, its practical application is limited. In this work, the electronic conductivity and the electrochemical performances of MoO3 electrode have been improved by introducing carbon on the surface of MoO3 nanobelt. The novel C@MoO3 nanocomposite was successfully prepared by hydrothermal in this study. The as-prepared samples were characterized by XRD, Raman, Fourier transform infrared, X-ray photoelectron spectroscopy, scanning electron microscope and transmission electron microscope. The electrochemical measurement results showed that the C@MoO3 nanocomposite exhibits superior electrochemical properties. The specific capacitance of C@MoO3 is 179Fg(-1) at current density of 1Ag(-1), which is 2.8 times than MoO3 at the same current density. The outstanding electrochemical performance could be attributed to these reasons including the advantages of the synergistic effect and good conductivity of carbon layer. This work will facilitate the application of other transition metal oxides with similar structures in energy storage.
机译：MoO 3作为储能中的潜在电极材料，最近已在超级电容器中引起越来越多的关注。但是，由于MoO 3的导电性差，其实际应用受到限制。在这项工作中，通过在MoO3纳米带的表面上引入碳，可以提高MoO3电极的电导率和电化学性能。这项研究成功地通过水热法制备了新型的C @ MoO3纳米复合材料。通过X射线衍射，拉曼光谱，傅立叶变换红外光谱，X射线光电子能谱，扫描电子显微镜和透射电子显微镜对制备的样品进行表征。电化学测量结果表明，C @ MoO3纳米复合材料表现出优异的电化学性能。在1Ag（-1）的电流密度下，C @ MoO3的比电容为179Fg（-1），是在相同电流密度下的MoO3的2.8倍。优异的电化学性能可归因于这些原因，包括协同效应和碳层良好电导率的优点。这项工作将有助于其他类似结构的过渡金属氧化物在储能中的应用。

著录项

  • 来源
    《Journal of materials science》 |2019年第7期|6643-6649|共7页
  • 作者

    Wang Qiong; Zhou Chen; Yan Xuehua; Wang Jingjing; Wang Dongfeng; Yuan Xiaoxue; Cheng Xiaonong;

  • 作者单位

    Jiangsu Univ, Sch Mat Sci & Engn, Zhenjiang 212013, Jiangsu, Peoples R China;

    Jiangsu Univ, Sch Mat Sci & Engn, Zhenjiang 212013, Jiangsu, Peoples R China;

    Jiangsu Univ, Sch Mat Sci & Engn, Zhenjiang 212013, Jiangsu, Peoples R China|Jiangsu Univ, Inst Adv Mat, Zhenjiang 212013, Jiangsu, Peoples R China|Jiangsu Univ, Inst Green Mat & Met, Zhenjiang 212013, Jiangsu, Peoples R China;

    Jiangsu Univ, Sch Mat Sci & Engn, Zhenjiang 212013, Jiangsu, Peoples R China;

    Jiangsu Univ, Sch Mat Sci & Engn, Zhenjiang 212013, Jiangsu, Peoples R China;

    Jiangsu Univ, Sch Mat Sci & Engn, Zhenjiang 212013, Jiangsu, Peoples R China;

    Jiangsu Univ, Sch Mat Sci & Engn, Zhenjiang 212013, Jiangsu, Peoples R China|Jiangsu Univ, Inst Green Mat & Met, Zhenjiang 212013, Jiangsu, Peoples R China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
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