Sn-loaded carbon microspheres-carbon nanofibers ternary composite materials as the negative electrode for vanadium redox flow battery

doi:10.1016/j.est.2024.115207

IMR OpenIR

	Sn-loaded carbon microspheres-carbon nanofibers ternary composite materials as the negative electrode for vanadium redox flow battery
	Jing, Minghua 1,2; Zhao, Huizhu 2; Qi, Xiaochen 2; Li, Xi 2; Wang, Diandian 2; Song, Zongren 2; Zhang, Xihao 3; Fang, Dawei 1
通讯作者	Song, Zongren(zongrensong@lnu.edu.cn) ; Zhang, Xihao(xhzhang19s@imr.ac.cn) ; Fang, Dawei(dwfang@lnu.edu.cn)
	2025-02-28
发表期刊	JOURNAL OF ENERGY STORAGE
ISSN	2352-152X
卷号	110 页码:10
摘要	Mass/charge transfer properties of the electrode material in vanadium redox flow battery (VRFB) has a direct influence on battery performance, especially for the negative reaction with kinetic lag and synchronous hydrogen evolution side reaction. In our previous work, the mass transfer performance of electrospun carbon nanofibers electrodes is effectively improved by using the spherical-filament binary materials (SCMS-ECNFs). In this work, Sn-based catalyst functionalized carbon microspheres with suitable size are constructed by a two-step hydrothermal method, which are then introduced into the precursor solution of electrospinning. After electrospinning and subsequent pre-oxidation and carbonization, Sn functionalized carbon microspheres-carbon nanofibers (Sn@SCMS-ECNFs) ternary composite electrode can be successfully constructed. The Sn@SCMS-ECNFs electrode possesses better mass transfer performance than the traditional ECNFs due to the support effect of Sn@SCMS, and exhibits better activity to the lagging negative reaction due to the anchoring effect of tin-based catalyst, which is expected to be a new type of high performance electrode material for VRFBs. The asymmetry VRFB single cell with Sn@SCMS-ECNFs ternary composite material as the negative electrode and SCMS-ECNFs binary composite material as the positive electrode shows lower polarization overpotential and larger capacity (15 % increased) than the symmetry VRFB with SCMS-ECNFs as both negative and positive electrode. Besides, the energy efficiency is 81.1 % at 200 mA center dot cm-2, 1.7 % higher than the symmetry VRFB above, suggesting the feasibility of this ternary composite electrode in further improving the battery performance.
关键词	VRFBs Electrodes Electrospun carbon nanofibers Electrocatalytic activity Mass transfer
资助者	National Natural Science Foundation of China ; Foundation of Liaoning Province Education Administration ; The 2024 basic research project of Liaoning University ; Liaoning Revitalization Talents Program ; Key Technologies R & D Program of Liaoning Provincial Department of Education
DOI	10.1016/j.est.2024.115207
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[22403039] ; National Natural Science Foundation of China[22173039] ; Foundation of Liaoning Province Education Administration[LJKMZ20220445] ; The 2024 basic research project of Liaoning University[LJKLJ202411] ; The 2024 basic research project of Liaoning University[LJ242410140002] ; Liaoning Revitalization Talents Program[XLYC2202040] ; Key Technologies R & D Program of Liaoning Provincial Department of Education[LJKZZ20220018]
WOS研究方向	Energy & Fuels
WOS类目	Energy & Fuels
WOS记录号	WOS:001402189600001
出版者	ELSEVIER
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/180477
专题	中国科学院金属研究所
通讯作者	Song, Zongren; Zhang, Xihao; Fang, Dawei
作者单位	1.Liaoning Univ, Inst Rare & Scattered Elements, Shenyang 110036, Peoples R China 2.Liaoning Univ, Coll Chem, Shenyang 110036, Peoples R China 3.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Jing, Minghua,Zhao, Huizhu,Qi, Xiaochen,et al. Sn-loaded carbon microspheres-carbon nanofibers ternary composite materials as the negative electrode for vanadium redox flow battery[J]. JOURNAL OF ENERGY STORAGE,2025,110:10.
APA	Jing, Minghua.,Zhao, Huizhu.,Qi, Xiaochen.,Li, Xi.,Wang, Diandian.,...&Fang, Dawei.(2025).Sn-loaded carbon microspheres-carbon nanofibers ternary composite materials as the negative electrode for vanadium redox flow battery.JOURNAL OF ENERGY STORAGE,110,10.
MLA	Jing, Minghua,et al."Sn-loaded carbon microspheres-carbon nanofibers ternary composite materials as the negative electrode for vanadium redox flow battery".JOURNAL OF ENERGY STORAGE 110(2025):10.