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dc.contributor.authorAkhtar, Faheem
dc.contributor.authorAbdulhamid, Mahmoud
dc.contributor.authorVovusha, Hakkim
dc.contributor.authorNg, Kim Choon
dc.contributor.authorSchwingenschlögl, Udo
dc.contributor.authorSzekely, Gyorgy
dc.identifier.citationAkhtar, F. H., Abdulhamid, M. A., Vovusha, H., Ng, K. C., Schwingenschlögl, U., & Szekely, G. (2021). Defining sulfonation limits of poly(ether-ether-ketone) for energy-efficient dehumidification. Journal of Materials Chemistry A. doi:10.1039/d1ta03690d
dc.description.abstractDehumidification is a vital process in the cooling industry and has emerged as a promising tool for alleviating the effects of energy-intensive activities. Advanced engineering materials, which can be employed in dehumidification processes, have attracted considerable attention. However, the majority of commercial adsorbents suffer from low sorption performance in arid climates. In this work, sulfonated poly(ether-ether-ketones) (SPEEKs) were designed as desiccants for dehumidification processes. The in silico and experimental investigations at a molecular level enabled the development of desiccants exhibiting outstanding water uptake capacity of more than 300%, fast sorption uptake, and high transport rate. The sorption capacity of the prepared materials outperformed those of the previously reported desiccants. Membrane performance analyses demonstrated remarkably high water vapor permeability and selectivity; therefore, the desiccants developed herein showed potential for application in water vapor control and dehumidification processes in enclosed or confined spaces. Contrary to common assumptions, the correlation between the sulfonation degree and dehumidification performance showed a plateau after maximum curvature. The results of this study open new directions for tailoring energy-efficient materials for dehumidification processes.
dc.description.sponsorshipThe research reported in this publication was supported by funding from King Abdullah University of Science and Technology (KAUST), Kingdom of Saudi Arabia. The postdoctoral fellowship from the Advanced Membranes and Porous Materials Center at KAUST is gratefully acknowledged (MAA). The authors acknowledge the KAUST Cooling Initiative grant REP/1/3988-06-01.
dc.publisherRoyal Society of Chemistry (RSC)
dc.rightsOpen Access Article.
dc.titleDefining sulfonation limits of poly(ether-ether-ketone) for energy-efficient dehumidification
dc.contributor.departmentAdvanced Membranes and Porous Materials Research Center
dc.contributor.departmentBiological and Environmental Science and Engineering (BESE) Division
dc.contributor.departmentChemical Engineering Program
dc.contributor.departmentComputational Physics and Materials Science (CPMS)
dc.contributor.departmentEnvironmental Science and Engineering Program
dc.contributor.departmentMaterial Science and Engineering Program
dc.contributor.departmentPhysical Science and Engineering (PSE) Division
dc.contributor.departmentWater Desalination and Reuse Research Center (WDRC)
dc.identifier.journalJournal of Materials Chemistry A
dc.eprint.versionPublisher's Version/PDF
dc.contributor.institutionWater Desalination and Reuse Centre
dc.contributor.institutionSaudi Arabia
dc.contributor.institutionAdvanced Membranes and Porous Materials Centre
dc.contributor.institutionPhysical Science and Engineering Division (PSE)
kaust.personAkhtar, Faheem Hassan
kaust.personAkhtar, Faheem Hassan
kaust.personAbdulhamid, Mahmoud A.
kaust.personAbdulhamid, Mahmoud A.
kaust.personVovusha, Hakkim
kaust.personVovusha, Hakkim
kaust.personNg, Kim Choon
kaust.personNg, Kim Choon
kaust.personSchwingenschlögl, Udo
kaust.personSchwingenschlögl, Udo
kaust.personSzekely, Gyorgy
kaust.personSzekely, Gyorgy
kaust.acknowledged.supportUnitAdvanced Membranes and Porous Materials Center

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