Reconstructing proton channels via Zr-MOFs realizes highly ion- selective and proton-conductive SPEEK-based hybrid membrane for vanadium flow battery

doi:10.1016/j.jechem.2022.08.043

IMR OpenIR

	Reconstructing proton channels via Zr-MOFs realizes highly ion- selective and proton-conductive SPEEK-based hybrid membrane for vanadium flow battery
	Zhang, Denghua 1,2; Yu, Wenjie 1; Zhang, Yue 1,2; Cheng, Sihan 1,2; Zhu, Mingyu 1,2; Zeng, Shuai 1,2; Zhang, Xihao 1,2; Zhang, Yifan 1,2; Luan, Chao 1; Yu, Zishen 1; Liu, Lansong 1,2; Zhang, Kaiyue 1; Liu, Jianguo 1; Yan, Chuanwei 1
通讯作者	Zhang, Kaiyue(kyzhang@imr.ac.cn) ; Liu, Jianguo(jgliu@imr.ac.cn)
	2022-12-01
发表期刊	JOURNAL OF ENERGY CHEMISTRY
ISSN	2095-4956
卷号	75 页码:448-456
摘要	There is an urgent need to break through the trade-off between proton conductivity and ion selectivity of proton exchange membrane (PEM) in vanadium flow battery (VFB). Proton channels in PEM are the key to controlling the ion sieving and proton conductivity in VFB. Herein, two types of proton channels are reconstructed in the hybrid membrane via introducing modified Zr-MOFs (IM-UIO-66-AS) into SPEEK matrix. Internal proton channels in IM-UIO-66-AS and interfacial proton channels between grafted imi-dazole groups on Zr-MOFs and SPEEK greatly improve the conductivity of the IM-UIO-66-AS/SPEEK hybrid membrane. More importantly, both reconstructed proton channels block the vanadium-ion per-meation to realize enhanced ion selectivity according to the size sieving and Donnan exclusion effects, respectively. Moreover, the hybrid membrane exhibits good mechanical property and dimensional stabil-ity. Benefiting from such rational design, a VFB loading with the optimized membrane exhibits enhanced voltage efficiency of 79.9% and outstanding energy efficiency of 79.6% at 200 mA cm-2, and keeps a nota-ble cycle stability for 300 cycles in the long-term cycling test. Therefore, this study provides inspiration for preparing next-generation PEMs with high ion selectivity and proton conductivity for VFB application.(c) 2022 Science Press and Dalian Institute of Chemical Physics, Chinese Academy of Sciences. Published by ELSEVIER B.V. and Science Press. All rights reserved.
关键词	Vanadium flow battery Hybrid membrane Metal organic framework Proton channel Ion selectivity
资助者	National Natural Science Foun-dation of China ; Central Guidance on Local Science and Technology Development Fund of Liaoning Pro-vince
DOI	10.1016/j.jechem.2022.08.043
收录类别	SCI
语种	英语
资助项目	National Natural Science Foun-dation of China ; Central Guidance on Local Science and Technology Development Fund of Liaoning Pro-vince ; [21975267] ; [2022JH6/100100001]
WOS研究方向	Chemistry ; Energy & Fuels ; Engineering
WOS类目	Chemistry, Applied ; Chemistry, Physical ; Energy & Fuels ; Engineering, Chemical
WOS记录号	WOS:000864910400009
出版者	ELSEVIER
引用统计	被引频次：16[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/321006/176007
专题	中国科学院金属研究所
通讯作者	Zhang, Kaiyue; Liu, Jianguo
作者单位	1.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Liaoning, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Denghua,Yu, Wenjie,Zhang, Yue,et al. Reconstructing proton channels via Zr-MOFs realizes highly ion- selective and proton-conductive SPEEK-based hybrid membrane for vanadium flow battery[J]. JOURNAL OF ENERGY CHEMISTRY,2022,75:448-456.
APA	Zhang, Denghua.,Yu, Wenjie.,Zhang, Yue.,Cheng, Sihan.,Zhu, Mingyu.,...&Yan, Chuanwei.(2022).Reconstructing proton channels via Zr-MOFs realizes highly ion- selective and proton-conductive SPEEK-based hybrid membrane for vanadium flow battery.JOURNAL OF ENERGY CHEMISTRY,75,448-456.
MLA	Zhang, Denghua,et al."Reconstructing proton channels via Zr-MOFs realizes highly ion- selective and proton-conductive SPEEK-based hybrid membrane for vanadium flow battery".JOURNAL OF ENERGY CHEMISTRY 75(2022):448-456.