Highly Conductive Anion-Exchange Membranes from Microporous Troger's Base Polymers

被引:238
作者
Yang, Zhengjin [1 ]
Guo, Rui [1 ]
Malpass-Evans, Richard [2 ]
Carta, Mariolino [2 ]
McKeown, Neil B. [2 ]
Guiver, Michael D. [3 ,4 ]
Wu, Liang [1 ]
Xu, Tongwen [1 ]
机构
[1] Univ Sci & Technol China, Collaborat Innovat Ctr Chem Energy Mat, CAS Key Lab Soft Matter Chem, Sch Chem & Mat Sci, Hefei 230026, Peoples R China
[2] Univ Edinburgh, EaStCHEM Sch Chem, David Brewster Rd, Edinburgh EH9 3FJ, Midlothian, Scotland
[3] Tianjin Univ, Sch Mech Engn, State Key Lab Engines, Tianjin 300072, Peoples R China
[4] Collaborat Innovat Ctr Chem Sci & Engn Tianjin, Tianjin 300072, Peoples R China
基金
美国国家科学基金会;
关键词
anion-exchange membranes; electrochemical membrane processes; hydroxide conductivity; PIMs; Troger's bases; FUEL-CELL APPLICATIONS; INTRINSIC MICROPOROSITY; ELECTROLYTE MEMBRANES; ALKALINE STABILITY; CLATHRATE;
D O I
10.1002/anie.201605916
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The development of polymeric anion-exchange membranes (AEMs) combining high ion conductivity and long-term stability is a major challenge for materials chemistry. AEMs with regularly distributed fixed cationic groups, based on the formation of microporous polymers containing the V-shape rigid Troger's base units, are reported for the first time. Despite their simple preparation, which involves only two synthetic steps using commercially available precursors, the polymers provide AEMs with exceptional hydroxide conductivity at relatively low ion-exchange capacity, as well as a high swelling resistance and chemical stability. An unprecedented hydroxide conductivity of 164.4mScm(-1) is obtained at a relatively a low ion-exchange capacity of 0.82mmolg(-1) under optimal operating conditions. The exceptional anion conductivity appears related to the intrinsic microporosity of the charged polymer matrix, which facilitates rapid anion transport.
引用
收藏
页码:11499 / 11502
页数:4
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