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Design and synthesis of a free-standing carbon nano-fibrous web electrode with ultra large pores for high-performance vanadium flow batteries
Xu, Chi1,3; Li, Xianfeng1,2; Liu, Tao1; Zhang, Huamin1,2
刊名RSC ADVANCES
2017
DOI10.1039/c7ra07365h
7期:73页:45932-45937
收录类别SCI
文章类型Article
WOS标题词Science & Technology ; Physical Sciences
类目[WOS]Chemistry, Multidisciplinary
研究领域[WOS]Chemistry
关键词[WOS]RESEARCH-AND-DEVELOPMENT ; ENERGY-STORAGE ; REACTION CATALYST ; NANOFIBERS ; PROGRESS ; MN3O4 ; ELECTROCATALYST ; CHALLENGES ; NANOTUBES ; DENSITY
英文摘要To improve the transport of active species in the carbon nano-fibrous electrodes of a vanadium flow battery (VFB), a free-standing carbon nano-fibrous web with ultra large pores has been designed and fabricated through the horizontally-opposed blending electrospinning method in this study. The morphology, surface chemistry and electrochemical performances of the highly porous nano-fibrous web have been investigated and compared with the carbon nano-fibrous web prepared by traditional electrospinning. Benefiting from the much larger pore size and higher porosity of the carbon nano-fibrous web prepared by horizontally-opposed blending electrospinning, the concentration polarization of the vanadium flow battery is effectively reduced. As indicated by the single cell tests, the battery using horizontally-opposed blending electrospun carbon nano-fibrous web electrodes delivers much improved performance, especially at high current density. The voltage efficiency is 10.3% higher than that of the traditional electrospun carbon nano-fibrous web electrodes and the electrolyte utilization efficiency is twice as much as that of the traditional electrospun carbon nano-fibrous web electrodes at 60 mA cm(-2). The results suggest that expanding the pore size could be one effective strategy to facilitate carbon nano-fibrous materials' applications for VRBs, and that the horizontally-opposed blending electrospun carbon nano-fibrous web is a promising electrode candidate for VFBs.
语种英语
WOS记录号WOS:000412211300006
引用统计
被引频次:2[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/150191
专题中国科学院大连化学物理研究所
作者单位1.Chinese Acad Sci, Div Energy Storage, Dalian Inst Chem Phys, Dalian 116023, Peoples R China
2.Collaborat Innovat Ctr Chem Energy Mat IChEM, Dalian 116023, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100039, Peoples R China
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GB/T 7714
Xu, Chi,Li, Xianfeng,Liu, Tao,et al. Design and synthesis of a free-standing carbon nano-fibrous web electrode with ultra large pores for high-performance vanadium flow batteries[J]. RSC ADVANCES,2017,7(73):45932-45937.
APA Xu, Chi,Li, Xianfeng,Liu, Tao,&Zhang, Huamin.(2017).Design and synthesis of a free-standing carbon nano-fibrous web electrode with ultra large pores for high-performance vanadium flow batteries.RSC ADVANCES,7(73),45932-45937.
MLA Xu, Chi,et al."Design and synthesis of a free-standing carbon nano-fibrous web electrode with ultra large pores for high-performance vanadium flow batteries".RSC ADVANCES 7.73(2017):45932-45937.
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