Reticular Chemistry within Crystalline Porous Gas Adsorbents and Membranes

作者：Weidong Fan, Yutong Wang, Zixi Kang, Daofeng Sun · 发表于：Accounts of Chemical Research · 年份：2025 · DOI：10.1021/acs.accounts.5c00070 · 被引用次数：26 · 研究领域：Metal-Organic Frameworks: Synthesis and Applications、Covalent Organic Framework Applications、Membrane Separation and Gas Transport

ConspectusAdsorptive and membrane separations are recognized as highly energy-efficient technologies, critically dependent on the properties of adsorbent and membrane materials. Crystalline porous materials (CPMs), such as metal-organic frameworks (MOFs), covalent organic frameworks (COFs), metal-organic cages (MOCs), and hydrogen-bonded organic frameworks (HOFs), have emerged as exceptional candidates for high-performance adsorbents and membranes due to their intrinsic structural tunability. Their orderly pore structure, high porosity, and large surface facilitate gas storage and separation processes. Furthermore, modifying the inner surface, controlling the pore size, and regulating the framework flexibility can significantly enhance CPMs' adsorption capacity and separation selectivity. Therefore, the precise structure regulation of CPMs is the key to optimizing gas separation and purification.Reticular chemistry is the use of strong chemical bonds to connect discrete molecular structures (molecules or molecular clusters) to create extended structures, such as CPMs. It allows precise atomic-level control and offers a method for regulating the structures of CPMs, enabling tailored pore environments that enhance selectivity for target separations. This approach is crucial to designing effective gas separation materials. For example, by functionalizing organic ligands, regulating metal ions, and modifying secondary building units, the pore size, porosity, and functionality of ...