• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>7th international green energy conference amp; 1st DNL conference on clean energy >CARBON PAPER IN-SITU MODIFIED BY CARBON NANOFIBER AS ELECTRODE OF ALL-VANADIUM REDOX FLOW BATTERY
【24h】

CARBON PAPER IN-SITU MODIFIED BY CARBON NANOFIBER AS ELECTRODE OF ALL-VANADIUM REDOX FLOW BATTERY

机译：碳纳米纤维原位修饰全钒氧化还原液流电极的碳纸

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

Carbon paper in-situ modified by carbon nanofiber (CPMCN) has been prepared by chemical vapor deposition (CVD) method. The structure and electrochemcial performances of carbon paper and CPMCN have been comparatively studied by means of scanning electron microscope (SEM), transmission electron microscope (TEM), N2-BET and cyclic voltammetry. The results show that the electrochemical performances of the electrode were improved greatly when herringbone carbon nanofiber was deposited on the carbon paper. The redox peak currents of [VO2]+/[VO]2+ and V3+/V2+ couples on CPMCN electrode were increased largely than that on the carbon paper, and the charge transfer resistances of the redox pairs on CPMCN electrode are also reduced. The enhanced electrochemical activity could be ascribed to the presence of plentiful unsaturated carbon atoms on the sheet edges of carbon nanofiber. The vanadium redox flow battery (VRB) single cell measurement show that energy efficiency and voltage efficiency of single cell with CPMCN as the electrodes are higher than that with carbon paper as the electrodes due to the reduction of electrochemistry polarization.
机译：通过化学气相沉积（CVD）方法制备了由碳纳米纤维（CPMCN）原位改性的碳纸。通过扫描电子显微镜（SEM），透射电子显微镜（TEM），N2-BET和循环伏安法对碳纸和CPMCN的结构和电化学性能进行了比较研究。结果表明，将人字形碳纳米纤维沉积在复写纸上可以大大改善电极的电化学性能。 CPMCN电极上[VO2] + / [VO] 2+和V3 + / V2 +对的氧化还原峰值电流比复写纸上的大幅增加，并且CPMCN电极上的氧化还原对的电荷转移电阻也降低了。增强的电化学活性可以归因于碳纳米纤维的片状边缘上存在大量不饱和碳原子。钒氧化还原液流电池（VRB）的单电池测量表明，由于电化学极化的降低，以CPMCN为电极的单电池的能量效率和电压效率高于以碳纸为电极的单电池的能量效率和电压效率。

著录项

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