A new mesoporous coordination polymer: synthesis, structure, and gas adsorption studies

Abstract

A new porous coordination framework, [Cu₃(BTN)₂(H₂O)₃]·xGuest (NJTU-1), with a large aromatic organic surface and remarkable mesopores, was synthesized and structurally characterized. It exhibits the second highest BET surface area of 2800 m² g⁻¹ among the interpenetrated PCPs. Additionally, this PCP also demonstrates high CH₄ (excess amount: 174 cm³ g⁻¹), C₂H₄ (220 cm³ g⁻¹), C₂H₆ (299 cm³ g⁻¹) and CO₂ (298 cm³ g⁻¹) uptake capacities as well as good adsorption selectivities for C₂H₄ (12–145), C₂H₆ (15.5–380) and CO₂ (7.1–31.6) over CH₄ at 298 K.