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题名: Modification of Nafion membrane using interfacial polymerization for vanadium redox flow battery applications
作者: Luo, Qingtao1, 2;  Zhang, Huaming1;  Chen, Jian1;  Qian, Peng1, 2;  Zhai, Yunfeng1, 2
通讯作者: 张华民
关键词: vanadium redox flow battery ;  interfacial polymerization ;  membrane modification ;  self-discharge phenomena
刊名: JOURNAL OF MEMBRANE SCIENCE
发表日期: 2008-03-20
DOI: 10.1016/j.memsci.2007.11.055
卷: 311, 期:1-2, 页:98-103
收录类别: SCI
文章类型: Article
部门归属: 3
项目归属: 303
产权排名: 1;1
WOS标题词: Science & Technology ;  Technology ;  Physical Sciences
类目[WOS]: Engineering, Chemical ;  Polymer Science
研究领域[WOS]: Engineering ;  Polymer Science
英文摘要: In order to reduce the permeation of vanadium ions across the ion exchange membrane during the operation of vanadium redox flow battery (VRB) based on Nation membrane, the interfacial polymerization was applied to form a cationic charged layer on the surface of Nation 117 membrane. The area resistance and the permeability of vanadium ions were measured. The results indicate that comparing with the unmodified Nation membrane, the modification of Nation membrane results in a dramatic reduction in crossover of vanadium ions across the membrane and a little higher area resistance of the membrane. As a result, the columbic efficiency for the VRB single cell based on the modified Nation membrane(VRB-modified Nafion), which is related to the concentration of the incubation solution of polyethylenimine (PEI), was increased significantly. The value is 96.2-97.3%, which is higher than that obtained with the VRB single cell based on unmodified Nafion membrane(VRB-Nafion) (around 93.8%). Due to the little higher area resistance caused by the modification, the voltage efficiency of VRB-modified Nafion is lower than that of VRB-Nafion. Furthermore, the water transfer across the modified membrane was also reduced. The ion exchange capacity (IEC) of the modified Nation membrane was also evaluated. The formation of the thin cationic charged layer on the membrane surface was confirmed by IR spectra analysis. (C) 2007 Elsevier B.V. All rights reserved.
关键词[WOS]: CATION-EXCHANGE MEMBRANES ;  ELECTRODIALYSIS ;  SEPARATOR ;  TRANSPORT ;  IONS
语种: 英语
原文出处: 查看原文
WOS记录号: WOS:000254324800011
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/100455
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, Dalian Inst Chem Phys, Lab PEMFC Key Mat & Technol, Dalian 116023, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China

Recommended Citation:
Luo, Qingtao,Zhang, Huaming,Chen, Jian,et al. Modification of Nafion membrane using interfacial polymerization for vanadium redox flow battery applications[J]. JOURNAL OF MEMBRANE SCIENCE,2008,311(1-2):98-103.
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