Cucurbituril-polymer-based supramolecular assembly materials for high-efficiency anion-conducting membranes

IF 15.7 1区材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

Matter Pub Date : 2026-10-07 DOI:10.1016/j.matt.2026.103039

Zhangyi Xiong, Zhijie Chen

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Abstract

A fundamental challenge in the development of anion-conducting membranes lies in the trade-off between ion-transport efficiency and long-term durability. To address this, Liu and coworkers introduced a supramolecular strategy based on host-guest assembly of rigid cucurbit[7]uril (CB[7]) macrocycles and a cationic quaternized poly(piperidinium-terphenyl) (QPPT) polymer, thereby creating a continuous network of uniform and dynamic nanopores. At an optimal CB[7] loading of 30 wt %, the resulting QPPT-CB[7]-30 wt % membrane exploits this dynamic confinement to achieve simultaneously enhanced hydroxide conductivity and mechano-chemical robustness and effectively resolve the long-standing conflict between performance and stability.

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高效阴离子导电膜用瓜脲基聚合物超分子组装材料

阴离子导电膜发展的一个基本挑战在于离子传输效率和长期耐用性之间的权衡。为了解决这个问题，Liu和同事介绍了一种基于刚性葫芦b[7] （CB[7]）大环和阳离子季铵盐化聚（胡椒-terphenyl）（QPPT）聚合物的主客体组装的超分子策略，从而创建了一个均匀和动态的连续纳米孔网络。在最佳CB[7]负载为30 wt %时，所得到的qpt -CB[7]-30 wt %膜利用这种动态约束，同时提高了氢氧化物导电性和机械化学稳稳性，有效地解决了长期存在的性能和稳定性之间的冲突。阴离子导电膜发展的一个基本挑战在于离子传输效率和长期耐用性之间的权衡。为了解决这个问题，Liu和同事介绍了一种基于刚性葫芦b[7] （CB[7]）大环和阳离子季铵盐化聚（胡椒-terphenyl）（QPPT）聚合物的主客体组装的超分子策略，从而创建了一个均匀和动态的连续纳米孔网络。在最佳CB[7]负载为30 wt %时，所得到的qpt -CB[7]-30 wt %膜利用这种动态约束，同时提高了氢氧化物导电性和机械化学稳稳性，有效地解决了长期存在的性能和稳定性之间的冲突。

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来源期刊

Matter MATERIALS SCIENCE, MULTIDISCIPLINARY-

CiteScore

26.30

自引率

2.60%

发文量

367

期刊介绍： Matter, a monthly journal affiliated with Cell, spans the broad field of materials science from nano to macro levels,covering fundamentals to applications. Embracing groundbreaking technologies,it includes full-length research articles,reviews, perspectives,previews, opinions, personnel stories, and general editorial content. Matter aims to be the primary resource for researchers in academia and industry, inspiring the next generation of materials scientists.