| Reconstructing proton channels via Zr-MOFs realizes highly ion- selective and proton-conductive SPEEK-based hybrid membrane for vanadium flow battery | |
| 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; Liu, Lansong1,2; Zhang, Kaiyue1; Liu, Jianguo1; Yan, Chuanwei1 | |
| Corresponding Author | Zhang, Kaiyue(kyzhang@imr.ac.cn) ; Liu, Jianguo(jgliu@imr.ac.cn) |
| 2022-12-01 | |
| Source Publication | JOURNAL OF ENERGY CHEMISTRY
 |
| ISSN | 2095-4956 |
| Volume | 75Pages:448-456 |
| Abstract | 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. |
| Keyword | Vanadium flow battery Hybrid membrane Metal organic framework Proton channel Ion selectivity |
| Funding Organization | 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 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | National Natural Science Foun-dation of China ; Central Guidance on Local Science and Technology Development Fund of Liaoning Pro-vince ; [21975267] ; [2022JH6/100100001] |
| WOS Research Area | Chemistry ; Energy & Fuels ; Engineering |
| WOS Subject | Chemistry, Applied ; Chemistry, Physical ; Energy & Fuels ; Engineering, Chemical |
| WOS ID | WOS:000864910400009 |
| Publisher | ELSEVIER |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/176010 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Zhang, Kaiyue; Liu, Jianguo |
| Affiliation | 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 |
| Recommended Citation 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. |
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