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

作者：Xydias Pantelis; Spanopoulos Ioannis; Klontzas Emmanuel; Froudakis George E; Trikalitis Pantelis N^*

来源：Inorganic Chemistry, 2014, 53(2): 679-681.

DOI：10.1021/ic402430n

The sulfone-functionalized Zr- and Hf-UiO-67 metal organic frameworks with hierarchical mesopores were successfully synthesized using the ligand 4,4%26apos;-dibenzoic acid-2,2%26apos;-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.

• 出版日期2014-1-20