一例具有高效 C₂H₂/CO₂ 分离性能的柱层式多孔配位聚合物

The separation and purification of C₂H₂ from C₂H₂/CO₂ mixture is of great challenging due to their similar physical and chemical properties. In this study, a pillared-layer ultramicroporous coordination polymer with polar pore surface bearing with N/O atoms Co-datz-mipa (Hdatz=3, 5-diamino-1, 2, 4-triazole; H₂mipa=5-methyl-isophthalic acid) was used as an efficient adsorbent for C₂H₂/CO₂ separation. Polar N/O atoms can form specific recognition with C₂H₂. Adsorption isotherms and dynamic breakthrough curves show that Co-datz-mipa can adsorb C₂H₂ selectively from CO₂.