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Synthesis of a MoO3/Ti3C2Tx composite with enhanced capacitive performance for supercapacitors

机译:具有增强的超级电容器电容性能的MOO3 / TI3C2Tx复合材料的合成

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摘要

In this work, a composite of molybdenum trioxide (MoO3) nanoparticles anchored on two-dimensional layers titanium carbide (Ti3C2Tx) has been successfully synthesized via a facile hydrothermal process. MoO3 was introduced to improve the contact region between electrode and electrolyte to shorten the paths of ion migration and intercalation. Ti3C2Tx has been integrated to act as a supporter to prevent the self-aggregation of MoO3 combined with the charge transport channel and high conductivity donor to the composite. The structure and morphology of the MoO3/Ti3C2Tx composite were characterized by Xray diffraction, nitrogen adsorption-desorption, scanning electron microscopy (SEM) and transmission electron microscopy (TEM). Cyclic voltammetry tests showed that the MoO3/Ti3C2Tx (III) composite exhibited a maximum specific capacitance of 151 F g(-1) at a scan rate of 2 mV s(-1), which is higher than that of pure Ti3C2Tx (103 F g(-1)). Furthermore, the composite displays an excellent cycling stability with 93.7% specific capacitance retention after 8000 cycles at 1 A g(-1).
机译:在这项工作中,通过容易的水热法成功地合成了在二维层碳化物(Ti3C2Tx)上锚定的三氧化钼(MOO3)纳米颗粒的复合物。引入MOO3以改善电极和电解质之间的接触区域,以缩短离子迁移和插入的路径。 TI3C2TX已集成为充当支持者,以防止MOO3与电荷传输通道和高导电供体与复合材料的自聚集相结合。 MOO3 / TI3C2TX复合材料的结构和形态通过X射线衍射,氮吸附 - 解吸,扫描电子显微镜(SEM)和透射电子显微镜(TEM)。循环伏安法试验表明,MOO3 / TI3C2TX(III)复合材料以2mV S(-1)的扫描速率显示出151f g(-1)的最大特异性电容,其高于纯Ti3c2tx(103 f g(-1))。此外,复合材料在8000次循环后显示出优异的循环稳定性,在1Ag(-1)下8000次循环后。

著录项

  • 来源
    《RSC Advances》 |2016年第100期|共8页
  • 作者

    Zhu Jianfeng; Lu Xiao; Wang Lei;

  • 作者单位

    Shaanxi Univ Sci &

    Technol Sch Mat Sci &

    Engn Xian 710021 Peoples R China;

    Shaanxi Univ Sci &

    Technol Sch Mat Sci &

    Engn Xian 710021 Peoples R China;

    Shaanxi Univ Sci &

    Technol Sch Mat Sci &

    Engn Xian 710021 Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 化学;
  • 关键词

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