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题名: Highly alkaline stable N1-alkyl substituted 2-methylimidazolium functionalized alkaline anion exchange membranes
作者: Yang, Congrong1, 2;  Wang, Suli1;  Ma, Wenjia1;  Jiang, Luhua1;  Sun, Gongquan1
刊名: JOURNAL OF MATERIALS CHEMISTRY A
发表日期: 2015-04-28
DOI: 10.1039/c5ta00562k
卷: 3, 期:16, 页:8559-8565
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences ;  Technology
类目[WOS]: Chemistry, Physical ;  Energy & Fuels ;  Materials Science, Multidisciplinary
研究领域[WOS]: Chemistry ;  Energy & Fuels ;  Materials Science
英文摘要: Steric hindrance and hyperconjugative effects, introduced at the N1 position of 2-methylimidazolium, greatly enhance the alkaline stability of the 2-methylimidazolium functional group. 2-Methylimidazolium small molecule compounds with N1-substituents (butyl, hexyl or octyl) are stable in 1 M KOH at 80 degrees C for more than 3000 h. Accordingly, the membranes based on N1-butyl, hexyl or octyl-substituted 2-methylimidzolium exhibited much more alkaline stability than membranes based on other substituted 2-methylimidazolium compounds, reflected by the almost unchanged IEC, conductivity and dimensions of the membranes after being exposed to 1 M KOH at 60 degrees C for hundreds of hours. This work reports the preparation of highly alkaline stable 2-methylimidazolium-based membranes by modifying the N1 position of 2-methylimidazolium.
关键词[WOS]: OXYGEN REDUCTION REACTION ;  FUEL-CELL APPLICATIONS ;  IMIDAZOLIUM CATIONS ;  THERMAL-PROPERTIES ;  NMR-SPECTROSCOPY ;  IONIC LIQUIDS ;  HEAD-GROUPS ;  DEGRADATION ;  STABILITY ;  SALTS
语种: 英语
WOS记录号: WOS:000356372300018
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/146321
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy, Div Fuel Cell & Battery, Dalian 116023, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100039, Peoples R China

Recommended Citation:
Yang, Congrong,Wang, Suli,Ma, Wenjia,et al. Highly alkaline stable N1-alkyl substituted 2-methylimidazolium functionalized alkaline anion exchange membranes[J]. JOURNAL OF MATERIALS CHEMISTRY A,2015,3(16):8559-8565.
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