A Bunch-Like Tertiary Amine Grafted Polysulfone Membrane for VRFBs with Simultaneously High Proton Conductivity and Low Vanadium Ion Permeability

	A Bunch-Like Tertiary Amine Grafted Polysulfone Membrane for VRFBs with Simultaneously High Proton Conductivity and Low Vanadium Ion Permeability
	Wu, Chunxiao 1; Tan, Qinglong 1; Lu, Shanfu 1; Si, Jiangju 1; Wang, Haining 1; Li, Xianfeng 2; Xiang, Yan 1
刊名	MACROMOLECULAR RAPID COMMUNICATIONS
	2017-04-01
卷号	38 期号:8
关键词	proton conductivity tertiary amine vanadium ion permeability vanadium redox flow batteries
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.
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
收录类别	SCI
语种	英语
WOS记录号	WOS:000400377600003
内容类型	期刊论文
源URL	[http://cas-ir.dicp.ac.cn/handle/321008/152005]
专题	大连化学物理研究所_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
推荐引用方式 GB/T 7714	Wu, Chunxiao,Tan, Qinglong,Lu, Shanfu,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	Wu, Chunxiao.,Tan, Qinglong.,Lu, Shanfu.,Si, Jiangju.,Wang, Haining.,...&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	Wu, Chunxiao,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).