Abánades Lázaro Isabel, Mazarakioti Eleni C, Andres-Garcia Eduardo, Vieira Bruno J C, Waerenborgh João C, Vitórica-Yrezábal Iñigo J, Giménez-Marqués Mónica, Mínguez Espallargas Guillermo
Instituto de Ciencia Molecular (ICMol), Universitat de València Catedrático José Beltrán Martínez No 2 46980 Paterna Valencia Spain
Centro de Ciências e Tecnologias Nucleares, DECN, Instituto Superior Técnico, Universidade de Lisboa 2695-066 Bobadela LRS Portugal.
J Mater Chem A Mater. 2023 Feb 17;11(10):5320-5327. doi: 10.1039/d2ta08934c. eCollection 2023 Mar 7.
Two ultramicroporous 2D and 3D iron-based Metal-Organic Frameworks (MOFs) have been obtained by solvothermal synthesis using different ratios and concentrations of precursors. Their reduced pore space decorated with pendant pyridine from tangling isonicotinic ligands enables the combination of size-exclusion kinetic gas separation, due to their small pores, with thermodynamic separation, resulting from the interaction of the linker with CO molecules. This combined separation results in efficient materials for dynamic breakthrough gas separation with virtually infinite CO/N selectivity in a wide operando range and with complete renewability at room temperature and ambient pressure.
通过使用不同比例和浓度的前驱体进行溶剂热合成，获得了两种超微孔二维和三维铁基金属有机框架（MOF）。它们的孔隙空间因缠结的异烟酸配体上的吡啶侧基而减小，这使得由于小孔而产生的尺寸排阻动力学气体分离与由于连接体与CO分子相互作用而产生的热力学分离相结合。这种联合分离产生了高效的材料，可用于动态突破气体分离，在很宽的操作范围内具有几乎无限的CO/N选择性，并且在室温和常压下具有完全可再生性。
