一种CO2捕集用分级多孔MOF纳米纤维气凝胶的制备方法

Hierarchical porous MOF nanofiber aerogels were prepared by electrospinning and in-situ growth, which solved the problems of insufficient binding strength and low pore utilization of MOF-based fiber adsorbent materials, and achieved efficient CO2 capture and stable adsorption.

CN122057451BActive Publication Date: 2026-07-17DONGHUA UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
DONGHUA UNIV
Filing Date
2026-04-14
Publication Date
2026-07-17

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Abstract

本发明涉及纳米纤维材料技术领域，具体为一种CO2捕集用分级多孔MOF纳米纤维气凝胶及其制备方法；本发明通过调控纺丝液中有机配体浓度、分散液中金属盐和交联剂的浓度，并在气凝胶成型过程中阶段性地调节温度与真空度，分阶段实现MOF的原位生长、冷冻干燥以及MOF活化的一体化连续处理，从而得到了分级多孔MOF纳米纤维气凝胶，该气凝胶构筑了蜂窝状各向异性气体传输通道，依托固有微孔聚合物与MOF上的CO2亲和基团，可在混合气体中优先吸附、传输CO2，并且材料内部形成纤维交缠大孔、静电纺丝介孔及材料本征微孔的分级多孔体系，大幅提升了CO2传质效率。
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