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Highly stable membranes based on sulfonated fluorinated poly(ether ether ketone)s with bifunctional groups for vanadium flow battery application
Yuan, Zhizhang1,2; Li, Xianfeng1,3; Duan, Yinqi1; Zhao, Yuyue1,2; Zhang, Huamin1,3
刊名POLYMER CHEMISTRY
2015
DOI10.1039/c5py00482a
6期:30页:5385-5392
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]FUEL-CELL APPLICATIONS ; EXCHANGE MEMBRANES ; CAPACITY DECAY ; DEGRADATION ; MORPHOLOGY ; SEPARATOR ; STABILITY ; MECHANISM ; IONOMERS
英文摘要A facile strategy for fabricating a sulfonated poly (ether ether ketone) ion exchange membrane with high chemical stability, excellent ion selectivity and battery performance is presented. The essence of this strategy lies in the introduction of benzotrifluoride bifunctional groups that function to protect the ether bond (through the conjugation effect of the benzene ring) and restrict swelling behaviour of the membrane (resulting from the -CF3 hydrophobic groups). With the introduction of benzotrifluoride bifunctional groups, the SFPEEK membranes exhibited excellent ion selectivity and cell performance under vanadium flow battery (VFB) operation conditions, exhibiting a columbic efficiency of 98.32% and an energy efficiency of 87.74% at a current density of 80 mA cm(-2), which is much higher than commercial Nafion 115 (CE = 94.83%, EE = 83.25%). A VFB single cell assembled with a SFPEEK membrane shows a stable performance after continuously running more than 1050 cycles, which is by far the longest cycle life reported on sulfonated aromatic cation exchange membranes. These results demonstrated that the sulfonated poly (ether ether ketone) ion exchange membranes with benzotrifluoride bifunctional groups are promising candidates for VFB systems.
语种英语
WOS记录号WOS:000358305900006
引用统计
被引频次:9[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/146407
专题中国科学院大连化学物理研究所
作者单位1.Chinese Acad Sci, Dalian Inst Chem Phys, Div Energy Storage, Dalian 116023, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
3.Collaborat Innovat Ctr Chem Energy Mat iChEM, Dalian 116023, Peoples R China
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GB/T 7714
Yuan, Zhizhang,Li, Xianfeng,Duan, Yinqi,et al. Highly stable membranes based on sulfonated fluorinated poly(ether ether ketone)s with bifunctional groups for vanadium flow battery application[J]. POLYMER CHEMISTRY,2015,6(30):5385-5392.
APA Yuan, Zhizhang,Li, Xianfeng,Duan, Yinqi,Zhao, Yuyue,&Zhang, Huamin.(2015).Highly stable membranes based on sulfonated fluorinated poly(ether ether ketone)s with bifunctional groups for vanadium flow battery application.POLYMER CHEMISTRY,6(30),5385-5392.
MLA Yuan, Zhizhang,et al."Highly stable membranes based on sulfonated fluorinated poly(ether ether ketone)s with bifunctional groups for vanadium flow battery application".POLYMER CHEMISTRY 6.30(2015):5385-5392.
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