Drastic Enhancement of the CO2 Adsorption Properties in Sulfone-Functionalized Zr- and Hf-UiO-67 MOFs with Hierarchical Mesopores

Drastic Enhancement of the CO2 Adsorption Properties in Sulfone-Functionalized Zr- and Hf-UiO-67 MOFs with Hierarchical Mesopores

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...

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Veröffentlicht in:Inorganic chemistry 2014-01, Vol.53 (2), p.679-681
Hauptverfasser: Xydias, Pantelis, Spanopoulos, Ioannis, Klontzas, Emmanuel, Froudakis, George E, Trikalitis, Pantelis N
Format: Artikel
Sprache:eng
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Zusammenfassung: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.
ISSN:0020-1669
1520-510X
DOI:10.1021/ic402430n