• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>RSC Advances >Co9S8 nanoparticle-decorated carbon nanofibers as high-performance supercapacitor electrodes
【24h】

Co9S8 nanoparticle-decorated carbon nanofibers as high-performance supercapacitor electrodes

机译：CO9S8纳米粒子装饰碳纳米纤维作为高性能超级电容电极

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

This work reported Co9S8 nanoparticle-decorated carbon nanofibers (CNF) as a supercapacitor electrode. By using a mild ion-exchange method, the cobalt oxide-based precursor nanoparticles were transformed to Co9S8 nanoparticles in a microwave hydrothermal process, and these nanoparticles were decorated onto a carbon nanofiber backbone. The composition of the nanofibers can be readily tuned by varying the Co acetate content in the precursor. The porous carbon nanofibers offered a fast electron transfer pathway while the well dispersed Co9S8 nanoparticles acted as the redox center for energy storage. As a result, high specific capacitance of 718 F g(-1) at 1 A g(-1) can be achieved with optimized Co9S8 loading. The assembled asymmetric supercapacitor with Co9S8/CNF as the cathode showed a high energy density of 23.8 W h kg(-1) at a power density of 0.75 kW kg(-1) and good cycling stability (16.9% loss over 10 000 cycles).
机译：该工作报道了CO9S8纳米粒子装饰的碳纳米纤维（CNF）作为超级电容器电极。 通过使用温和的离子交换方法，将氧化钴基前体纳米颗粒在微波水热法中转化为CO9S8纳米颗粒，并将这些纳米颗粒装饰到碳纳米纤维骨架上。 可以通过改变前体中的CO乙酸盐含量容易地调整纳米纤维的组成。 多孔碳纳米纤维提供快速电子转移途径，而分散的CO9S8纳米颗粒作用为氧化还原中心的能量储存。 结果，通过优化的CO9S8负载可以实现1A G（-1）的高比电容为1Ag（-1）。 具有CO9S8 / CNF的组装的不对称超级电容器，如阴极，在功率密度为0.75千瓦kg（-1）和良好的循环稳定性（超过10 000次循环损失16.9％）时，高能量密度为23.8Wh kg（-1）。 。

著录项

  • 来源
    《RSC Advances》 |2018年第48期|共6页
  • 作者

    Zhang Ning; Wang Wencong; Teng Changqing; Wu Zongxiao; Ye Ziran; Zhi Mingjia; Hong Zhanglian;

  • 作者单位

    Zhejiang Univ Sch Mat Sci &

    Engn State Key Lab Silicon Mat 38 Zheda Rd Hangzhou 310027 Zhejiang Peoples R China;

    Zhejiang Univ Sch Mat Sci &

    Engn State Key Lab Silicon Mat 38 Zheda Rd Hangzhou 310027 Zhejiang Peoples R China;

    Zhejiang Univ Sch Mat Sci &

    Engn State Key Lab Silicon Mat 38 Zheda Rd Hangzhou 310027 Zhejiang Peoples R China;

    Zhejiang Univ Sch Mat Sci &

    Engn State Key Lab Silicon Mat 38 Zheda Rd Hangzhou 310027 Zhejiang Peoples R China;

    Zhejiang Univ Technol Dept Appl Phys Zhaohui Campus Hangzhou 310014 Zhejiang Peoples R China;

    Zhejiang Univ Sch Mat Sci &

    Engn State Key Lab Silicon Mat 38 Zheda Rd Hangzhou 310027 Zhejiang Peoples R China;

    Zhejiang Univ Sch Mat Sci &

    Engn State Key Lab Silicon Mat 38 Zheda Rd Hangzhou 310027 Zhejiang Peoples R China;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 化学;
  • 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