Oxidized Carbon-Based Spacers for Pressure-Resistant Graphene Oxide Membranes
Ekaterina A. Chernova,
Konstantin E. Gurianov,
Dmitrii I. Petukhov,
Andrei P. Chumakov,
Rishat G. Valeev,
Victor A. Brotsman,
Alexey V. Garshev,
Andrei A. Eliseev
Affiliations
Ekaterina A. Chernova
Department of Materials Science, Lomonosov Moscow State University, 1-73 Leninskiye Gory, Moscow 119991, Russia
Konstantin E. Gurianov
Department of Materials Science, Lomonosov Moscow State University, 1-73 Leninskiye Gory, Moscow 119991, Russia
Dmitrii I. Petukhov
Department of Materials Science, Lomonosov Moscow State University, 1-73 Leninskiye Gory, Moscow 119991, Russia
Andrei P. Chumakov
ESRF—The European Synchrotron Radiation Facility, 71, Avenue des Martyrs, 38043 Grenoble, France
Rishat G. Valeev
Udmurt Federal Research Center of the Ural Brunch of Russian Academy of Sciences (UdmFRC of UB RAS), St. Them. Tatiana Baramzina 34, Izhevsk 426067, Russia
Victor A. Brotsman
Department of Chemistry, Lomonosov Moscow State University, 1-3 Leninskiye Gory, Moscow 119991, Russia
Alexey V. Garshev
Department of Chemistry, Lomonosov Moscow State University, 1-3 Leninskiye Gory, Moscow 119991, Russia
Andrei A. Eliseev
Department of Materials Science, Lomonosov Moscow State University, 1-73 Leninskiye Gory, Moscow 119991, Russia
In this study, we report the influence of carbon-based spacer-oxidized derivatives of fullerenes (fullerenols) C60(OH)26–32 and graphene oxide nanoribbons on the performance and pressure stability of graphene-oxide-based composite membranes. The impact of the intercalant shape and composition on the permeance of the selective layers for water vapors has been studied under pressure gradients. It is shown that the insertion of ball-shaped fullerenols between graphene oxide nanoflakes allows a suppression in irreversible permeance loss to 2–4.5% and reversible permeance loss to 2O/N2 selectivities of up to ~30,000. The demonstrated approach opens avenues for the highly effective stabilization of GO membranes at elevated pressures for industrial-scale dehumidification.
