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dc.contributor.authorChuah, Chong Yangen_US
dc.contributor.authorNie, Linaen_US
dc.contributor.authorLee, Jong-Minen_US
dc.contributor.authorBae, Tae-Hyunen_US
dc.identifier.citationChuah, C. Y., Nie, L., Lee, J. & Bae, T. (2020). The influence of cations intercalated in graphene oxide membranes in tuning H₂/CO₂ separation performance. Separation and Purification Technology, 246, 116933-.
dc.description.abstractGraphene oxide (GO) laminate membranes of controlled interlayer spacing were synthesized for the investigation in H2/CO2 separation. The interlayer distance of GO flakes was tuned by crosslinking and intercalation of La3+ or Co2+ cations between GO layers. Investigation via field-emission scanning electron microscope showed that a continuous selective layer was present in the GO-La3+, GO-Co2+ and GO membranes. Gas permeation results revealed that the GO-La3+ membrane had better H2 permeability and H2/CO2 selectivity than the other membranes, due to an increase in d-spacing between the GO layers and restricted defect formation in the GO laminate membranes. In addition, the H2/CO2 separation performance of GO-La3+ membrane was found to be close to the upper bound limit of conventional polymer membranes established in 2008.en_US
dc.description.sponsorshipEconomic Development Board (EDB)en_US
dc.relation.ispartofSeparation and Purification Technologyen_US
dc.rights© 2020 Elsevier B.V. All rights reserved.en_US
dc.subjectEngineering::Chemical engineeringen_US
dc.titleThe influence of cations intercalated in graphene oxide membranes in tuning H₂/CO₂ separation performanceen_US
dc.typeJournal Articleen
dc.contributor.schoolSchool of Chemical and Biomedical Engineeringen_US
dc.contributor.researchNanyang Environment and Water Research Instituteen_US
dc.contributor.researchSingapore Membrane Technology Centreen_US
dc.subject.keywordsGraphene Oxideen_US
dc.description.acknowledgementThis work was financially supported by GSK (GlaxoSmithKline) – EDB (Economic Development Board) Trust Fund (PI: J. M. L). T. H. B. would also like to thank Korea Advanced Institute of Science and Technology for a financial support.en_US
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