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Xydias, Pantelis; Spanopoulos, Ioannis; Klontzas, Emmanuel; Froudakis, George E; Trikalitis, Pantelis N
Inorganic chemistry, 01/2014, Letnik: 53, Številka: 2Journal Article
The sulfone-functionalized Zr- and Hf-UiO-67 metal–organic frameworks with hierarchical mesopores were successfully synthesized using the ligand 4,4′-dibenzoic acid-2,2′-sulfone, with acetic acid or HCl as the modulator. Compared to UiO-67, the zirconium solid shows a remarkable 122% increase in CO2 uptake, reaching 4.8 mmol g–1 (17.4 wt %) at 1 bar and 273 K (145% at 298 K) and more than 100% increase in CO2/CH4 selectivity.
