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

文献类型：期刊论文

作者Zhang, Denghua1,2; Yu, Wenjie1; Zhang, Yue1,2; Cheng, Sihan1,2; Zhu, Mingyu1,2; Zeng, Shuai1,2; Zhang, Xihao1,2; Zhang, Yifan1,2; Luan, Chao1; Yu, Zishen1
刊名JOURNAL OF ENERGY CHEMISTRY
出版日期2022-12-01
卷号75页码:448-456
ISSN号2095-4956
关键词Vanadium flow battery Hybrid membrane Metal organic framework Proton channel Ion selectivity
DOI10.1016/j.jechem.2022.08.043
通讯作者Zhang, Kaiyue(kyzhang@imr.ac.cn) ; Liu, Jianguo(jgliu@imr.ac.cn)
英文摘要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.
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
语种英语
出版者ELSEVIER
WOS记录号WOS:000864910400009
资助机构National Natural Science Foun-dation of China ; Central Guidance on Local Science and Technology Development Fund of Liaoning Pro-vince
源URL[http://ir.imr.ac.cn/handle/321006/176009]  
专题金属研究所_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.

入库方式： OAI收割

来源：金属研究所

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