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Ultrafine MnO2 nanowires grown on RGO-coated carbon cloth as a binder-free and flexible supercapacitor electrode with high performance

机译:超细MnO2纳米线在RGO涂覆的碳布上生长,作为无效性的无粘合剂和柔性超级电容器电极

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摘要

Reduced graphene oxide coated carbon cloth has been used as a substrate for the growth of ultrafine MnO2 nanowires (CC/RGO/MnO2), forming binder-free and flexible supercapacitor electrode materials. The experimental results indicate that a maximum area-specific capacitance of 506.8 mF cm(-2) was gained from the CC/RGO/MnO2 electrode at the current density of 0.128 mA cm(-2). Furthermore, the electrode exhibits excellent cycling stability (98.6% specific capacitance was still retained after 10000 galvanostatic charge-discharge (GCD) tests when the current density was 1.28 mA cm(-2)). What's more, the area-specific capacitance of the CC/RGO/MnO2 electrode was hardly changed, when the electrode was operated under bending mechanical conditions. In addition, the charge storage performance and mechanism of the MnO2 nanostructures was discussed.
机译:还原石墨烯氧化物涂覆的碳布已被用作超细MnO2纳米线(CC / RGO / MNO2)的生长的基材,形成无粘合剂和柔性超级电容器电极材料。 实验结果表明,在0.128mA cm(-2)的电流密度下,从CC / RGO / MNO2电极中获得506.8mF cm(-2)的最大面积特异性电容。 此外,当电流密度为1.28mA cm(-2)时,电极表现出优异的循环稳定性(98.6%的特定电容仍然保留在10000次电抑制 - 放电(GCD)测试之后。 更重要的是,当在弯曲机械条件下操作电极时,CC / RGO / MNO2电极的区域特定电容几乎不改变。 此外,讨论了MNO2纳米结构的电荷储存性能和机制。

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  • 来源
    《RSC Advances》 |2018年第67期|共10页
  • 作者单位

    Tianjin Univ Technol Coll Sci Tianjin 300384 Peoples R China;

    Tianjin Univ Technol Coll Sci Tianjin 300384 Peoples R China;

    Tianjin Normal Univ Coll Phys &

    Mat Sci Tianjin 300387 Peoples R China;

    Tianjin Univ Technol Coll Sci Tianjin 300384 Peoples R China;

    Tianjin Univ Technol Coll Sci Tianjin 300384 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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