Adsorption equilibrium of methane and carbon dioxide on porous metal-organic framework Zn-BTB

摘要: Porous metal-organic frameworks (MOFs) have emerged over the past decade as an important new class of materials possessing permanent porosities, uniform pore structures, high surface areas, and low crystal densities. MOFs are regarded promising solid adsorbents for gas storage separation but not reached applied level yet. One impediment to MOF applications is incomplete adsorption information lack structure-property relationships. In this paper, we present pure-component equilibrium data methane carbon dioxide at different temperatures on a three-dimensional Zn-MOF material built from ligand 1,3,5-tris(4-carboxyphenyl)benzene (H3BTB) with Zn metal. The described by Toth’s equation Dubinin-Astakhov (D-A) equation. Thermodynamic properties including isosteric heat estimated based two models comparisons made other adsorbents. smaller diameters compared related structures MOF-177 UMCM-1 lead greater loadings 1 bar.