Advanced Functional Materials·· 7 小时前精选AI 评分78
冠醚共价有机网络膜实现水合主导的Li+/Mg2+分离
Crown‐Ether‐Based Covalent Organic Network Membranes for Hydration‐Governed Li + /Mg 2+ Separation
AI 导读
研究报道了一种冠醚基共价有机网络膜，利用二苯并-18-冠-6的构象柔性与位阻形成局部有序、整体无序的堆积，把名义约3 nm的本征空腔转变为有效孔径约0.9 nm的亚纳米传输通道。
推荐理由
该膜把冠醚本征空腔经堆积重构为约0.9 nm通道，给出Li+/Mg2+选择性约3900及高Li+通量，可对照现有冠醚膜设计。
创新点
不同于依赖空腔主客体识别的常规冠醚材料，该工作利用二苯并-18-冠-6的构象柔性与位阻诱导局部有序、整体无序堆积，将约3 nm本征空腔压缩为约0.9 nm通道，并以暴露醚氧重构富氧限域水合界面实现水合主导的离子筛分。
来源：Advanced Functional Materials · doi.org
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