IMR OpenIR
Interfacial co-polymerization derived nitrogen-doped carbon enables high-performance carbon felt for vanadium flow batteries
Zhang, Kaiyue1,2; Yan, Chuanwei1; Tang, Ao1
通讯作者Tang, Ao(a.tang@imr.ac.cn)
2021-07-16
发表期刊JOURNAL OF MATERIALS CHEMISTRY A
ISSN2050-7488
页码11
摘要Nitrogen-doped carbon felt has exhibited great promise in enhancing the cycling performance and lifespan of vanadium flow batteries (VFBs). However, the fabrication of stable and high-performance nitrogen-doped carbon felt is still to a certain extent hindered by existing preparation processes. Herein, a two-step novel in situ interfacial co-polymerization strategy is proposed to construct microvillus-like nitrogen-doped carbon on carbon felt, which features excellent homogeneity, high doping content and controllable nitrogen type conversion. By adding polyethyleneimine into the polymerization reaction, the aggregation effect of polydopamine is corrected and more strongly bonded nitrogen atoms are introduced via covalent interactions, yielding a hierarchical electrode interface with a greatly enhanced pyridinic-N content. Electrochemical characterization studies show that the prepared electrode possesses superior reaction kinetics towards both VO2+/VO2+ and V2+/V3+ redox couples, which can also realize a facile mass-transfer process. First principles calculations at the atomic level further ascribe the promoted V2+/V3+ kinetics to the enhanced vanadium adsorption on pyridinic-N, while attributing the promoted VO2+/VO2+ kinetics to a remarkably reduced activation energy barrier associated with doped N atoms. Adopting the prepared electrodes, the VFB demonstrates a superior energy efficiency of 73.6% at 300 mA cm(-2), and achieves an excellent and long-term cycling stability over 600 cycles at 200 mA cm(-2) with an extremely low energy efficiency decay of 0.006% per cycle.
资助者Natural Science Foundation of Liaoning Province ; Institute of Metal Research, Chinese Academy of Sciences
DOI10.1039/d1ta03683a
收录类别SCI
语种英语
资助项目Natural Science Foundation of Liaoning Province[2020-MS-012] ; Institute of Metal Research, Chinese Academy of Sciences
WOS研究方向Chemistry ; Energy & Fuels ; Materials Science
WOS类目Chemistry, Physical ; Energy & Fuels ; Materials Science, Multidisciplinary
WOS记录号WOS:000680470600001
出版者ROYAL SOC CHEMISTRY
引用统计
被引频次:30[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.imr.ac.cn/handle/321006/159678
专题中国科学院金属研究所
通讯作者Tang, Ao
作者单位1.Chinese Acad Sci, Inst Met Res, Shenyang, Peoples R China
2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang, Peoples R China
推荐引用方式
GB/T 7714
Zhang, Kaiyue,Yan, Chuanwei,Tang, Ao. Interfacial co-polymerization derived nitrogen-doped carbon enables high-performance carbon felt for vanadium flow batteries[J]. JOURNAL OF MATERIALS CHEMISTRY A,2021:11.
APA Zhang, Kaiyue,Yan, Chuanwei,&Tang, Ao.(2021).Interfacial co-polymerization derived nitrogen-doped carbon enables high-performance carbon felt for vanadium flow batteries.JOURNAL OF MATERIALS CHEMISTRY A,11.
MLA Zhang, Kaiyue,et al."Interfacial co-polymerization derived nitrogen-doped carbon enables high-performance carbon felt for vanadium flow batteries".JOURNAL OF MATERIALS CHEMISTRY A (2021):11.
条目包含的文件
条目无相关文件。
个性服务
推荐该条目
保存到收藏夹
查看访问统计
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Zhang, Kaiyue]的文章
[Yan, Chuanwei]的文章
[Tang, Ao]的文章
百度学术
百度学术中相似的文章
[Zhang, Kaiyue]的文章
[Yan, Chuanwei]的文章
[Tang, Ao]的文章
必应学术
必应学术中相似的文章
[Zhang, Kaiyue]的文章
[Yan, Chuanwei]的文章
[Tang, Ao]的文章
相关权益政策
暂无数据
收藏/分享
所有评论 (0)
暂无评论
 

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。