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A Bunch-Like Tertiary Amine Grafted Polysulfone Membrane for VRFBs with Simultaneously High Proton Conductivity and Low Vanadium Ion Permeability
Tan, Qinglong1; Lu, Shanfu1; Si, Jiangju1; Wang, Haining1; Wu, Chunxiao1; Li, Xianfeng2; Xiang, Yan1
关键词Proton Conductivity Tertiary Amine Vanadium Ion Permeability Vanadium Redox Flow Batteries
刊名MACROMOLECULAR RAPID COMMUNICATIONS
2017-04-01
DOI10.1002/marc.201600710
38期:8
收录类别SCI
文章类型Article
WOS标题词Science & Technology ; Physical Sciences
类目[WOS]Polymer Science
研究领域[WOS]Polymer Science
关键词[WOS]REDOX FLOW BATTERIES ; ANION-EXCHANGE MEMBRANES ; POROUS MEMBRANES ; FUEL-CELLS ; SELECTIVITY ; DEGRADATION ; ELECTROLYTE ; STABILITY ; MECHANISM ; DESIGN
英文摘要Novel polysulfone membranes with bunch-like tertiary amine groups are synthesized with high ion selectivity and outstanding chemical stability for vanadium redox flow batteries (VRFBs). The bunch-like tertiary amine groups simultaneously act as an ionic conductor for proton hopping and vanadium ion transport obstacles. The performance of the membrane is tuned via controlling the grafting degree of the chloromethylated polysulfone. The results show that membranes show increasing proton over vanadium ion (sigma/p) selectivity with increasing functional tertiary groups. VRFBs assembled with the prepared membranes demonstrate an impressive Coulombic efficiency of 98.9% and energy efficiency of 90.9% at a current density of 50 mA cm(-2). Furthermore, the prepared membrane reported in this work shows excellent stability in 1 m VO2+ solution at 35 degrees C over 240 h. Overall, the synthesized polymers provide a new insight into the design of high-performance membranes toward VRFB applications.
语种英语
WOS记录号WOS:000400377600003
引用统计
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/152005
专题中国科学院大连化学物理研究所
作者单位1.Beihang Univ, Sch Space & Environm, Beijing Key Lab Bioinspired Energy Mat & Devices, Beijing 100191, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, Div Energy Storage, Zhongshan Rd 457, Dalian 116023, Peoples R China
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Tan, Qinglong,Lu, Shanfu,Si, Jiangju,et al. A Bunch-Like Tertiary Amine Grafted Polysulfone Membrane for VRFBs with Simultaneously High Proton Conductivity and Low Vanadium Ion Permeability[J]. MACROMOLECULAR RAPID COMMUNICATIONS,2017,38(8).
APA Tan, Qinglong.,Lu, Shanfu.,Si, Jiangju.,Wang, Haining.,Wu, Chunxiao.,...&Xiang, Yan.(2017).A Bunch-Like Tertiary Amine Grafted Polysulfone Membrane for VRFBs with Simultaneously High Proton Conductivity and Low Vanadium Ion Permeability.MACROMOLECULAR RAPID COMMUNICATIONS,38(8).
MLA Tan, Qinglong,et al."A Bunch-Like Tertiary Amine Grafted Polysulfone Membrane for VRFBs with Simultaneously High Proton Conductivity and Low Vanadium Ion Permeability".MACROMOLECULAR RAPID COMMUNICATIONS 38.8(2017).
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