Activated Charcoal Modified Graphite Felts Using for Positive Electrodes of Vanadium Redox Flow Battery | |
Yang, Haitao1; Fan, Chuanlin1; Zhu, Qingshan1,2 | |
刊名 | JOURNAL OF ELECTROCHEMICAL ENERGY CONVERSION AND STORAGE |
2017-11-01 | |
卷号 | 14期号:4页码:041004 |
关键词 | Vanadium Redox Flow Battery Composite Electrode Material Activated Charcoal Particles Pyrolytic Carbon Reversibility |
ISSN号 | 2381-6872 |
DOI | 10.1115/1.4037532 |
文献子类 | Article |
英文摘要 | In the present paper, a composite electrode material was developed for vanadium redox flow batteries (VRFBs). Activated charcoal particles were evenly immobilized on the graphite felt (GF) via a sucrose pyrolysis process for the first time. The in site formed pyrolytic carbon is used as the binder, because it is essentially carbon material as well as GF and activated charcoal, which has a natural tendency to realize good adhesion and low contact resistance. The activated charcoal decorated GF electrode (abbreviated as the composite electrode) possesses larger surface area (13.8 m(2) g(-1)), more than two times as GF (6.3 m(2) g(-1)). The oxygen content of composite electrode is also higher (7.0%) than that of GF (4.8%). The composite electrode was demonstrated to lower polarization and increase the reversibility toward the VO2+/VO(2)(+)redox couple according to the cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS) measurements. The charge-discharge cycling test was conducted with a single VRFB cell. The results indicate that the cell with composite electrode presents higher charge-discharge capacity, larger electrolyte utilization efficiency (EU), and higher energy conversion efficiency (79.1%) compared with that using GF electrode. The increasing electrochemical performances of composite electrodes are mainly ascribed to the high electrochemical activity of activated charcoal particles and increasing superficial area. |
WOS关键词 | COMPOSITE ELECTRODES ; ELECTROCHEMICAL-BEHAVIOR ; CARBON NANOTUBE ; CELL ; PERFORMANCE ; VO2+/VO2+ ; IMPEDANCE ; GRAPHENE ; CATALYST ; HYBRID |
WOS研究方向 | Electrochemistry ; Energy & Fuels |
语种 | 英语 |
WOS记录号 | WOS:000415121300004 |
资助机构 | National Natural Science Foundation of China(51504231 ; Open Project of State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization(CNMRCUKF1704) ; 51504232 ; 21325628) |
内容类型 | 期刊论文 |
源URL | [http://ir.ipe.ac.cn/handle/122111/23408] |
专题 | 过程工程研究所_多相复杂系统国家重点实验室 |
作者单位 | 1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
推荐引用方式 GB/T 7714 | Yang, Haitao,Fan, Chuanlin,Zhu, Qingshan. Activated Charcoal Modified Graphite Felts Using for Positive Electrodes of Vanadium Redox Flow Battery[J]. JOURNAL OF ELECTROCHEMICAL ENERGY CONVERSION AND STORAGE,2017,14(4):041004. |
APA | Yang, Haitao,Fan, Chuanlin,&Zhu, Qingshan.(2017).Activated Charcoal Modified Graphite Felts Using for Positive Electrodes of Vanadium Redox Flow Battery.JOURNAL OF ELECTROCHEMICAL ENERGY CONVERSION AND STORAGE,14(4),041004. |
MLA | Yang, Haitao,et al."Activated Charcoal Modified Graphite Felts Using for Positive Electrodes of Vanadium Redox Flow Battery".JOURNAL OF ELECTROCHEMICAL ENERGY CONVERSION AND STORAGE 14.4(2017):041004. |
个性服务 |
查看访问统计 |
相关权益政策 |
暂无数据 |
收藏/分享 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论