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A Microporous Copper Metal–Organic Framework with High H2 and CO2 Adsorption Capacity at Ambient Pressure


  • We gratefully acknowledge financial support by Deutsche Forschungsgemeinschaft (DFG SPP 1362-Poröse metallorganische Gerüstverbindungen, STA 428/17-1, KR 1675/7-1, GL 290/6-1; and KA 1560/3-2, 4-2), the University of Leipzig (PbF-1) and the graduate school BuildMoNa is gratefully acknowledged. D.L. thanks the Fonds der Chemischen Industrie for a fellowship, J.L. acknowledges the ESF fellowship. We thank F. Kettner for DTA/TG-MS analyses, Riaz Ahmad and Dr. Charlie Thibault (Quantachrome Instruments, US) for help with the N2 (77 K), Ar (87 K) and H2 (77, 87 and 97 K) sorption experiments on sample 1 d, and Dr. Angela Puls (Rubotherm GmbH, Bochum (Germany)) for measuring the N2 (77 K) adsorption isotherms on sample 1 a.


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Fully accessible: Uptakes of 9.2 mmol g−1 (40.5 wt %) for CO2 at 273 K/0.1 MPa and 15.23 mmol g−1 (3.07 wt %) for H2 at 77 K/0.1 MPa are among the highest reported for metal–organic frameworks (MOFs) and are found for a novel, highly microporous copper-based MOF (see picture; Cu turquoise, O red, N blue). Thermal analyses show a stability of the flexible framework up to 250 °C.