Mechanism of Polysulfone-Based Anion Exchange Membranes Degradation in Vanadium Flow Battery
文献类型：期刊论文
| 作者 | Yuan, Zhizhang1,3; Li, Xianfeng1,2; Zhao, Yuyue1,3; Zhang, Huamin1,2 |
| 刊名 | acs applied materials & interfaces
 |
| 出版日期 | 2015-09-02 |
| 卷号 | 7期号:34页码:19446-19454 |
| 关键词 | degradation mechanism polysulfone 4 hybrid orbital anion exchange membranes vanadium flow battery 4 '-bipyridine |
| 英文摘要 | the stability of hydrocarbon ion exchange membranes is one of the critical issues for a flow battery. however, the degradation mechanism of ion exchange membranes has been rarely investigated especially for anion exchange membranes. here, the degradation mechanism of polysulfone based anion exchange membranes, carrying pyridine ion exchange groups, under vanadium flow battery (vfb) medium was investigated in detail. we find that sp(2) hybrid orbital interactions between pyridinic-nitrogen in 4,4'-bipyridine and benzylic carbon disrupt the charge state balance of pristine chloromethylated polysulfone. this difference in electronegativity inversely induces an electrophilic carbon center in the benzene ring, which can be attacked by the lone pair electron on the vanadium(v) oxygen species, further leading to the degradation of polymer backbone, while leaving the 4,4'-bipyridine ion exchange groups stable. this work represents a step toward design and construction of alternative type of chemically stable hydrocarbon ion exchange membranes for vfb. |
| WOS标题词 | science & technology ; technology |
| 类目[WOS] | nanoscience & nanotechnology ; materials science, multidisciplinary |
| 研究领域[WOS] | science & technology - other topics ; materials science |
| 关键词[WOS] | alkaline fuel-cells ; raman-spectroscopy ; infrared-spectra ; aqueous-solution ; energy-storage ; ft-raman ; complexes ; electrolytes ; performance ; copolymers |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000360868700067 |
| 公开日期 | 2016-05-09 |
| 源URL | [http://cas-ir.dicp.ac.cn/handle/321008/146530]  |
| 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.Chinese Acad Sci, Dalian Inst Chem Phys, Div Energy Storage, Dalian 116023, Peoples R China 2.Collaborat Innovat Ctr Chem Energy Mat iChEM, Dalian 116023, Peoples R China 3.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yuan, Zhizhang,Li, Xianfeng,Zhao, Yuyue,et al. Mechanism of Polysulfone-Based Anion Exchange Membranes Degradation in Vanadium Flow Battery[J]. acs applied materials & interfaces,2015,7(34):19446-19454. |
| APA | Yuan, Zhizhang,Li, Xianfeng,Zhao, Yuyue,&Zhang, Huamin.(2015).Mechanism of Polysulfone-Based Anion Exchange Membranes Degradation in Vanadium Flow Battery.acs applied materials & interfaces,7(34),19446-19454. |
| MLA | Yuan, Zhizhang,et al."Mechanism of Polysulfone-Based Anion Exchange Membranes Degradation in Vanadium Flow Battery".acs applied materials & interfaces 7.34(2015):19446-19454. |
入库方式： OAI收割
来源：大连化学物理研究所
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