In Situ Pore-Making and Heteroatom Doping of Carbon Nanofibers Electrode for High Performance Vanadium Redox Flow Battery

doi:10.1149/1945-7111/ac0aa4

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	In Situ Pore-Making and Heteroatom Doping of Carbon Nanofibers Electrode for High Performance Vanadium Redox Flow Battery
	Jing,Minghua 1; Yang,Yuxuan 1; Liu,Zhuling 1; Ma,Xiaoxue 1; Fang,Dawei 1; Fan,Xinzhuang 2; Liu,Jianguo 2; Yan,Chuanwei 2
刊名	Journal of The Electrochemical Society
	2021-06-01
卷号	168 期号:6
ISSN号	0013-4651
DOI	10.1149/1945-7111/ac0aa4
通讯作者	Fang,Dawei()
英文摘要	Electrochemical performance of the electrospun carbon nanofibers (ECNFs) electrode for all vanadium redox flow battery (VRFB) is significantly enhanced by introducing urea into the precursor solution and the subsequent thermal treatment. A novel N, O dual-doped carbon nanofibers with a series of micronanometer multiscale pores on the surface can be easily obtained by the in situ thermolysis processes of urea, which endows the electrode larger surface area, better wettability and improved electroactive sites. The electrochemical results demonstrate that the N, O co-doping ECNFs with multiscale pores shows reduced charge transfer resistance and diffusion resistance for vanadium ions redox reactions, which should be attributed to the synergy of the larger effective surface area and better electrocatalytic activity. The VRFB equipped with the novel carbon nanofibers electrode delivers a 84.6% increase of the discharge capacity and 17% amplification of the energy efficiency compared with the pristine ECNFs at 150 mA cm?2. This simple method to construct electrodes with N, O dual-doped and micronanometer multiscale pores also paves the way to finely regulating the internal microstructure and composition of the electrodes in a variety of energy storage systems.
语种	英语
出版者	IOP Publishing
WOS记录号	IOP:0013-4651-168-6-AC0AA4
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/159405]
专题	金属研究所_中国科学院金属研究所
通讯作者	Fang,Dawei
作者单位	1.Institute of Rare and Scattered Elements, College of Chemistry, Liaoning University, Shenyang 110036, People’s Republic of China 2.Liaoning Engineering Research Center for Advanced Battery Materials, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, People’s Republic of China
推荐引用方式 GB/T 7714	Jing,Minghua,Yang,Yuxuan,Liu,Zhuling,et al. In Situ Pore-Making and Heteroatom Doping of Carbon Nanofibers Electrode for High Performance Vanadium Redox Flow Battery[J]. Journal of The Electrochemical Society,2021,168(6).
APA	Jing,Minghua.,Yang,Yuxuan.,Liu,Zhuling.,Ma,Xiaoxue.,Fang,Dawei.,...&Yan,Chuanwei.(2021).In Situ Pore-Making and Heteroatom Doping of Carbon Nanofibers Electrode for High Performance Vanadium Redox Flow Battery.Journal of The Electrochemical Society,168(6).
MLA	Jing,Minghua,et al."In Situ Pore-Making and Heteroatom Doping of Carbon Nanofibers Electrode for High Performance Vanadium Redox Flow Battery".Journal of The Electrochemical Society 168.6(2021).