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Highly stable poly(ethylene glycol)-grafted alkaline anion exchange membranes
Yang, Congrong1,2; Wang, Suli1; Ma, Wenjia1; Zhao, Shixiong1; Xu, Ziqi3; Sun, Gongquan1
Source PublicationJOURNAL OF MATERIALS CHEMISTRY A
2016
ISSN2050-7488
DOI10.1039/c6ta00200e
Volume4Issue:10Pages:3886-3892
Indexed BySCI
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences ; Technology
WOS SubjectChemistry, Physical ; Energy & Fuels ; Materials Science, Multidisciplinary
WOS Research AreaChemistry ; Energy & Fuels ; Materials Science
WOS KeywordFUEL-CELLS ; BACKBONE DEGRADATION ; POLYMER ELECTROLYTES ; NMR-SPECTROSCOPY ; HEAD-GROUPS ; STABILITY ; CONDUCTIVITY ; QUATERNARY
AbstractA mechanically and chemically stable poly(ethylene glycol) (PEG)-grafted poly(styrene-ethylene-cobutylene-styrene) (SEBS)-based alkaline anion exchange membrane (AAEM) was designed, prepared and characterized. When subjected to tensile strain, the elongation at breaking of these SEBS-based AAEMs was up to 500%, a value 80 times greater than that of an AAEM using polystyrene as the main chain. Remarkably, the ion exchange capacity (IEC), conductivity, dimensions and mechanical properties of this AAEM could remain almost unchanged in 2.5 M KOH at 60 degrees C for about 3000 h, indicating the excellent alkaline stability of the PEG-grafted SEBS-based AAEMs. As confirmed by TEM, the grafting of PEG could enlarge the size of the ion-conducting channels, significantly enhancing the conductivity of these AAEMs (80 degrees C, from 29.2 mS cm(-1) to 51.9 mS cm(-1)). Furthermore, the peak power density of an H-2/O-2 single fuel cell using this SEBS-based AAEM was up to 146 mW cm(-2) at 50 degrees C. Based on these outstanding properties, this membrane has potential application not only for fuel cells, but also for other electrochemical energy conversion and storage devices, such as redox flow and alkaline ion batteries.
Language英语
WOS IDWOS:000371967000037
PublisherROYAL SOC CHEMISTRY
Citation statistics
Cited Times:32[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/171117
Collection中国科学院大连化学物理研究所
Corresponding AuthorSun, Gongquan
Affiliation1.Chinese Acad Sci, Div Fuel Cell & Battery, Dalian Natl Lab Clean Energy, Dalian Inst Chem Phys, 457 Zhongshan Rd, Dalian 116023, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100039, Peoples R China
3.Dalian Univ Technol, Dalian 116023, Peoples R China
Recommended Citation
GB/T 7714
Yang, Congrong,Wang, Suli,Ma, Wenjia,et al. Highly stable poly(ethylene glycol)-grafted alkaline anion exchange membranes[J]. JOURNAL OF MATERIALS CHEMISTRY A,2016,4(10):3886-3892.
APA Yang, Congrong,Wang, Suli,Ma, Wenjia,Zhao, Shixiong,Xu, Ziqi,&Sun, Gongquan.(2016).Highly stable poly(ethylene glycol)-grafted alkaline anion exchange membranes.JOURNAL OF MATERIALS CHEMISTRY A,4(10),3886-3892.
MLA Yang, Congrong,et al."Highly stable poly(ethylene glycol)-grafted alkaline anion exchange membranes".JOURNAL OF MATERIALS CHEMISTRY A 4.10(2016):3886-3892.
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