• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Advanced Functional Materials >Highly Conductive Ordered Mesoporous Carbon Based Electrodes Decorated by 3D Graphene and 1D Silver Nanowire for Flexible Supercapacitor
【24h】

Highly Conductive Ordered Mesoporous Carbon Based Electrodes Decorated by 3D Graphene and 1D Silver Nanowire for Flexible Supercapacitor

机译：3D石墨烯和1D银纳米线修饰的高导电性有序介孔碳基电极，用于柔性超级电容器

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Ordered mesoporous carbon (OMC) is considered one of the most promising materials for electric double layer capacitors (EDLC) given its low-cost, high specific surface area, and easily accessed ordered pore channels. However, pristine OMC electrode suffers from poor electrical conductivity and mechanical flexibility, whose specific capacitance and cycling stability is unsatisfactory in flexible devices. In this work, OMC is coated on the surface of highly conductive three-dimensional graphene foam, serving as both charge collector and flexible substrate. Upon further decoration with silver nanowires (Ag NWs), the novel architecture of Ag NWs/3D-graphene foam/OMC (Ag-GF-OMC) exhibits exceptional electrical conductivity (up to 762 S cm~(-1)) and mechanical robustness. The Ag-GF-OMC electrodes in flexible supercapaci-tors reach a specific capacitance as high as 213 F g~(-1), a value five-fold higher than that of the pristine OMC electrode. Moreover, these flexible electrodes also exhibit excellent long-term stability with ＞90% capacitance retention over 10 000 cycles, as well as high energy and power density (4.5 Wh kg~(-1) and 5040 W kg~(-1), respectively). This study provides a new procedure to enhance the device performance of OMC based supercapacitors, which is a promising candidate for the application of flexible energy storage devices.
机译：有序介孔碳（OMC）被认为是双电层电容器（EDLC）最有前途的材料之一，因为它具有低成本，高比表面积和易于使用的有序孔道的优点。然而，原始的OMC电极具有差的导电性和机械柔韧性，其比电容和循环稳定性在柔性器件中不能令人满意。在这项工作中，OMC被涂覆在高导电性三维石墨烯泡沫的表面上，既用作电荷收集器又用作柔性基板。在用银纳米线（Ag NWs）进一步装饰后，Ag NWs / 3D石墨烯泡沫/ OMC（Ag-GF-OMC）的新型结构展现出卓越的导电性（高达762 S cm〜（-1））和机械坚固性。柔性超级电容器中的Ag-GF-OMC电极的比电容高达213 F g〜（-1），是原始OMC电极的5倍。此外，这些柔性电极还具有出色的长期稳定性，在10 000次循环中具有> 90％的电容保持率，以及高的能量和功率密度（4.5 Wh kg〜（-1）和5040 W kg〜（-1），分别）。这项研究提供了一种新的程序来增强基于OMC的超级电容器的设备性能，这对于柔性储能设备的应用是有希望的候选者。

著录项

  • 来源
    《Advanced Functional Materials》 |2014年第14期|2013-2019|共7页
  • 作者

    Jian Zhi; Wei Zhao; Xiangye Liu; Angran Chen; Zhanqiang Liu; Fuqiang Huang;

  • 作者单位

    CAS Key Laboratory of Materials for Energy Conversion Shanghai Institute of Ceramics Chinese Academy of Sciences Shanghai 200050, P. R. China;

    CAS Key Laboratory of Materials for Energy Conversion Shanghai Institute of Ceramics Chinese Academy of Sciences Shanghai 200050, P. R. China;

    Beijing National Laboratory for Molecular Sciences and State Key Laboratory of Rare Earth Materials Chemistry and Applications, College of Chemistry and Molecular Engineering, Peking University Beijing, 100871, P. R. China;

    CAS Key Laboratory of Materials for Energy Conversion Shanghai Institute of Ceramics Chinese Academy of Sciences Shanghai 200050, P. R. China;

    CAS Key Laboratory of Materials for Energy Conversion Shanghai Institute of Ceramics Chinese Academy of Sciences Shanghai 200050, P. R. China;

    CAS Key Laboratory of Materials for Energy Conversion Shanghai Institute of Ceramics Chinese Academy of Sciences Shanghai 200050, P. R. China,Beijing National Laboratory for Molecular Sciences and State Key Laboratory of Rare Earth Materials Chemistry and Applications, College of Chemistry and Molecular Engineering, Peking University Beijing, 100871, P. R. China;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号