Anion exchange membrane electrolyte preserving inverse Ia3‾d bicontinuous cubic phase: Effect of microdomain morphology on selective ion transport
Anion exchange membrane electrolyte preserving inverse Ia3‾d bicontinuous cubic phase: Effect of microdomain morphology on selective ion transport
复制标题
阴离子交换膜电解质保留逆Ia(3)over-bard双连续立方相：微区形态对选择性离子传输的影响
DOI：
10.1016/j.memsci.2020.118113
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发表时间：
2020-06
影响因子：
9.5
通讯作者：
Liqiang Zheng
中科院分区：
文献类型：
--
作者：
Na Sun;Fei Lu;Aless;ro Mariani;Stefano Passerini;Xinpei Gao;Liqiang Zheng
了解结构-形态-性能之间的关系是合理设计性能平衡的离子交换膜的关键。先前的观察已经导致了一种普遍的看法，即明确定义的亲水/疏水相分离的形态与有效的离子传输有关。在此基础上，本文讨论了膜微区形态，沿着的离子传输机制，相对于选择透过性。我们提出并证明了一种简单的方法来构建液晶阴离子交换膜保持反双连续立方结构。所得膜显示出改进的氢氧化物传导性、上级水管理能力和增强的碱稳定性。更重要的是，保留的3D互连离子通道通过降低的迁移屏障选择性地运输氢氧化物，同时抑制水合离子和有机溶质的交叉。这些结果突出了立方液晶中间相作为具有良好定义的离子通道的膜设计的有吸引力的材料的突出潜力，同时提供了先进的能源应用的膜电解质的结构-形态-性能关系的机理的见解。
The understanding of structure-morphology-property relationships is pivotal in the rational design of ion-exchange membranes with well-balanced properties. Prior observations have led to the general perception that well-defined hydrophilic/hydrophobic phase-segregated morphologies are relevant for efficient ion transport. On this basis, herein, the membrane microdomain morphology, along with its ion transport mechanisms, are discussed with respect to permselectivity. We propose and demonstrate a simple approach to construct liquid-crystalline anion-exchange membrane preserving inverse bicontinuous cubic structure. The resulting membrane exhibits improved hydroxide conductivity, superior water management ability, and enhanced alkaline stability. More importantly, the preserved 3D-interconnected ion channels selectively transport hydroxide via a reduced migration barrier, while inhibiting crossover of hydrated ions and organic solutes. These results highlight the outstanding potential of cubic liquid crystal mesophases as an attractive material for designing membranes with well-defined ion channels, while offering mechanistic insights into the structure-morphology-property relationships of membrane electrolytes for advanced energy applications.
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影响因子：
17.1
作者：
Cushen, Julia D.;Otsuka, Issei;Ellison, Christopher J.
通讯作者：
Ellison, Christopher J.
影响因子：
15
作者：
Mogurampelly, Santosh;Keith, Jordan R.;Ganesan, Venkat
通讯作者：
Ganesan, Venkat
影响因子：
15
作者：
Ichikawa, Takahiro;Yoshio, Masafumi;Kato, Takashi
通讯作者：
Kato, Takashi
影响因子：
5.5
作者：
Han, Juanjuan;Zhu, Liang;Zhuang, Lin
通讯作者：
Zhuang, Lin
通过可聚合离子液体的自组装具有明确的离子传输纳米通道的阴离子交换膜
DOI：
10.1039/c6ta05223a
发表时间：
2016
期刊：
J. Mater. Chem. A
影响因子：
--
作者：
Xinpei Gao;Fei Lu;Bin Dong;Aoli Wu;Na Sun;Liqiang Zheng
通讯作者：
Liqiang Zheng