A novel methoxy-decorated metal–organic framework exhibiting high acetylene and carbon dioxide storage capacities

Abstract

A methoxy-decorated novel metal–organic framework (MOF), Cu₂(DTPD) (ZJU-12, H₄DTPD = 5,5′-(2,6-dimethoxynaphthalene-1,5-diyl)diisophthalic acid) with optimized pore space and open metal sites, was solvothermally synthesized and structurally characterized. The activated ZJU-12a displays a moderately high BET (Brunauer–Emmett–Teller) surface area of 2316 m² g⁻¹. Due to the pore size of the crystal being consistent with the molecular size and kinetic diameters of C₂H₂ and CO₂, ZJU-12a exhibits a high C₂H₂ storage capacity of 244 cm³ g⁻¹ and CO₂ capture capacity of 134 cm³ g⁻¹ at room temperature.