Počet záznamů: 1
The effects of formation and functionalization of graphene-based membranes on their gas and water vapor permeation properties
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SYSNO ASEP 0577606 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název The effects of formation and functionalization of graphene-based membranes on their gas and water vapor permeation properties Tvůrce(i) Smržová, Darina (UACH-T) ORCID, SAI, RID
Šrámová Slušná, Michaela (UACH-T) SAI
Peter, Jakub (UMCH-V) RID, ORCID
Beneš, Hynek (UMCH-V) RID, ORCID
Tolasz, Jakub (UACH-T) RID, ORCID, SAI
Pop-Georgievski, Ognen (UMCH-V) RID, ORCID
Maříková, Monika (UACH-T) SAI, RID
Ecorchard, Petra (UACH-T) SAI, RID, ORCIDCelkový počet autorů 8 Číslo článku e21417 Zdroj.dok. Heliyon. - : Elsevier - ISSN 2405-8440
Roč. 9, č. 11 (2023)Poč.str. 10 s. Jazyk dok. eng - angličtina Země vyd. NL - Nizozemsko Klíč. slova Carboxylated graphene oxide ; Gas permeability ; Graphene oxide ; Graphene-based membrane Vědní obor RIV CA - Anorganická chemie Obor OECD Inorganic and nuclear chemistry Vědní obor RIV – spolupráce Ústav makromolekulární chemie - Makromolekulární chemie CEP GA22-05244S GA ČR - Grantová agentura ČR LM2023066 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy Způsob publikování Open access Institucionální podpora UACH-T - RVO:61388980 ; UMCH-V - RVO:61389013 UT WOS 001105242000001 EID SCOPUS 85174852275 DOI 10.1016/j.heliyon.2023.e21417 Anotace The gas and water vapor permeabilities of graphene-based membranes can be affected by the presence of different functional groups directly bound to the graphene network. In this work, one type of carboxylated graphene oxide (GO-COOH) and two types of graphene oxide synthesized i) under strong oxidative conditions directly from graphite (GO-1) and ii) under mild oxidative conditions from exfoliated graphene (GO-2) were used as precursors of self-standing membranes prepared with thicknesses in the range of 12–55 μm via slow-vacuum filtration preparation method. It was observed that the permeabilities for all tested gases decreased in order GO-2 > GO-1 > GO-COOH and depended on both the arrangement of graphene sheets and their functionalization. The GO-1 membrane with a high content of oxygen-containing groups showed the best performance for water vapor permeability. The GO-2 membrane with a thickness of 43 μm exhibited a disordered GO sheet morphology and, therefore, unique gas-separation performance towards H2/CO2 gas pair, showing high hydrogen permeability while keeping extremely high H2/CO2 ideal selectivity that exceeds the Robeson 2008 upper bound of polymer membranes. Pracoviště Ústav anorganické chemie Kontakt Jana Kroneislová, krone@iic.cas.cz, Tel.: 311 236 931 Rok sběru 2024 Elektronická adresa https://hdl.handle.net/11104/0346728
Počet záznamů: 1