Towards the gemini cation anion exchange membranes by nucleophilic substitution reaction

被引:19
|
作者
Zhang, Jianjun [1 ]
He, Yubin [1 ]
Liang, Xian [1 ]
Ge, Xiaolin [1 ]
Zhu, Yuan [1 ]
Hu, Min [1 ]
Yang, Zhengjin [1 ]
Wu, Liang [1 ]
Xu, Tongwen [1 ]
机构
[1] Univ Sci & Technol China, Sch Chem & Mat Sci, Collaborat Innovat Ctr Chem Energy Mat, CAS Key Lab Soft Matter Chem, Hefei 230026, Anhui, Peoples R China
基金
中国国家自然科学基金;
关键词
anion exchange membranes; fuel cell; nucleophilic substitution reaction; nano-phase separation; POLYMER ELECTROLYTE MEMBRANES; QUATERNARY AMMONIUM GROUPS; FUEL-CELLS; CROSS-LINKING; PERFORMANCE; KETONE)S;
D O I
10.1007/s40843-018-9397-0
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
As a critical component of alkaline fuel cells, anion exchange membranes determine the energy efficiency, output power density and the long term stability. Recently, the anion exchange membranes with gemini-cation side chains exhibit superior ion conductivity due to their good nano-phase separation. However, the costly and complicated synthesis limits their scaling up and commercialization. To address this problem, a convenient synthetic procedure under mild conditions is well developed. A tertiary amine precursor is introduced onto the polymer by the nucleophilic substitution reaction to avoid the conventional chloro/bromo-methylation. Followed by a simple Menshutkin reaction with 6-bromo-N,N,N-trimethylhexan-1-aminium bromide, the polymer electrolytes are obtained in a high yield. The resulting anion exchange membranes with high conductivity, good fuel cell performance and restricted swelling suggest the potential for the application in fuel cell devices.
引用
收藏
页码:973 / 981
页数:9
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