Exploring Bio-Sourced Gallate-Based Ultramicroporous MOFs: Novel Metal Centers, Functionalized Ligands, and Ball-Milling Synthesis for Advan

This experiment investigates ultramicroporous MOFs based on bio-sourced gallate and gallate-NH₂ ligands, combined with alternative metal centers beyond Mg, Ni, Co, Mn, and Fe. Synthesis is performed via ball milling, a scalable and solvent-free method, recently proven effective for gallate systems. Notably, MOFs incorporating gallate-NH₂, where the central OH of gallic acid is replaced by NH₂, have not yet been reported. Gas sorption properties will be examined alongside in situ diffraction studies to assess their potential applications. Understanding how alternative metals and functionalized ligands influence adsorption behavior is key to optimizing materials for selective gas capture and storage. This research advances the development of novel MOFs with improved performance while highlighting ball milling as a sustainable and efficient synthesis route.

本实验研究基于生物源没食子酸盐（gallate）与氨基化没食子酸盐（gallate-NH₂）配体的超微孔金属有机框架（MOFs），并探索了Mg、Ni、Co、Mn、Fe之外的替代金属中心。合成过程采用球磨法——一种可规模化且无溶剂的合成手段，此前已被证实对没食子酸盐体系行之有效。值得注意的是，以氨基化没食子酸盐构建的MOFs（即没食子酸的中心羟基被氨基取代）此前尚未见文献报道。本研究将对其气体吸附性能开展测试，并结合原位衍射分析以评估其潜在应用价值；阐明替代金属中心与功能化配体对吸附行为的影响机制，是优化用于选择性气体捕获与储存的目标材料的核心关键。本研究推动了性能更优的新型MOFs的开发，同时凸显了球磨法作为可持续高效合成路径的应用潜力。