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dc.contributor.authorLee, Tae Hoon
dc.contributor.authorMoghadam, Farhad
dc.contributor.authorJung, Jae Gu
dc.contributor.authorKim, Yu Jin
dc.contributor.authorRoh, Ji Soo
dc.contributor.authorYoo, Seung Yeon
dc.contributor.authorLee, Byung Kwan
dc.contributor.authorKim, Jin Hee
dc.contributor.authorPinnau, Ingo
dc.contributor.authorPark, Ho Bum
dc.date.accessioned2021-10-12T07:46:54Z
dc.date.available2021-10-12T07:46:54Z
dc.date.issued2021-10-10
dc.date.submitted2021-08-06
dc.identifier.citationLee, T. H., Moghadam, F., Jung, J. G., Kim, Y. J., Roh, J. S., Yoo, S. Y., … Park, H. B. (2021). In Situ Derived Hybrid Carbon Molecular Sieve Membranes with Tailored Ultramicroporosity for Efficient Gas Separation. Small, 2104698. doi:10.1002/smll.202104698
dc.identifier.issn1613-6810
dc.identifier.issn1613-6829
dc.identifier.doi10.1002/smll.202104698
dc.identifier.urihttp://hdl.handle.net/10754/672807
dc.description.abstractFine control of ultramicroporosity (<7 Å) in carbon molecular sieve (CMS) membranes is highly desirable for challenging gas separation processes. Here, a versatile approach is proposed to fabricate hybrid CMS (HCMS) membranes with unique textural properties as well as tunable ultramicroporosity. The HCMS membranes are formed by pyrolysis of a polymer nanocomposite precursor containing metal-organic frameworks (MOFs) as a carbonizable nanoporous filler. The MOF-derived carbonaceous phase displays good compatibility with the polymer-derived carbon matrix due to the homogeneity of the two carbon phases, substantially enhancing the mechanical robustness of the resultant HCMS membranes. Detailed structural analyses reveal that the in situ pyrolysis of embedded MOFs induces more densified and interconnected carbon structures in HCMS membranes compared to those in conventional CMS membranes, leading to bimodal and narrow pore size distributions in the ultramicroporous region. Eventually, the HCMS membranes exhibit far superior gas separation performances with a strong size-sieving ability than the conventional polymers and CMS membranes, especially for closely sized gas pairs (Δd < 0.5 Å) including CO2/CH4 and C3H6/C3H8 separations. More importantly, the developed HCMS material is successfully prepared into a thin-film composite (TFC) membrane (≈1 µm), demonstrating its practical feasibility for use in industrial mixed-gas operation conditions.
dc.description.sponsorshipT.H.L. and F.M. equally contributed to this work. This publication is based upon work supported by the King Abdullah University of Science and Technology (KAUST) Office of Sponsored Research (OSR) under Award No. OSR-2019-CPF-4101.3. H.B.P. acknowledges the financial support from Korea Gas Corporation (Kogas) under Award No. 2020-10 (grant #202000000003373) and Korea Evaluation Institute of Industrial Technology under the Ministry of Trade, Industry and Energy, under Award No. 20011497 (grant #202100000000769).
dc.publisherWiley
dc.relation.urlhttps://onlinelibrary.wiley.com/doi/10.1002/smll.202104698
dc.rightsArchived with thanks to Small
dc.titleIn Situ Derived Hybrid Carbon Molecular Sieve Membranes with Tailored Ultramicroporosity for Efficient Gas Separation
dc.typeArticle
dc.contributor.departmentChemical Engineering Program
dc.contributor.departmentAdvanced Membranes and Porous Materials Research Center
dc.contributor.departmentPhysical Science and Engineering (PSE) Division
dc.identifier.journalSmall
dc.rights.embargodate2022-10-10
dc.eprint.versionPost-print
dc.contributor.institutionDepartment of Energy Engineering Hanyang University Seoul 04763 Republic of Korea
dc.identifier.pages2104698
kaust.personPinnau, Ingo
kaust.grant.numberOSR-2019-CPF-4101.3
dc.date.accepted2021-08-23
refterms.dateFOA2021-10-13T05:43:12Z
kaust.acknowledged.supportUnitOffice of Sponsored Research (OSR)


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