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Asymmetric mixed matrix membranes with zeolite imidazolate frameworks (ZIF-8, ZIF-67, bimetallic ZIF-8/67) and polyethersulfone for high flux and high selective hydrogen separation

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dc.contributor.author Pani, Ajaya Kumar
dc.contributor.author Kuncharam, Bhanu Vardhan Reddy
dc.date.accessioned 2025-04-09T04:06:55Z
dc.date.available 2025-04-09T04:06:55Z
dc.date.issued 2025-03
dc.identifier.uri https://4spepublications.onlinelibrary.wiley.com/doi/10.1002/pen.27209?af=R
dc.identifier.uri http://dspace.bits-pilani.ac.in:8080/jspui/handle/123456789/18574
dc.description.abstract For producing high-purity hydrogen (H2) from hydrocarbon reforming, membrane-based separation can be used. In this study, mixed matrix polymer membranes using metal–organic framework (MOF) nanoparticles are explored to overcome the permeability-selectivity trade-off of traditional polymeric membranes. Highly permeable and highly H2 selective MMM using ZIF-8, ZIF-67, and bimetallic ZIF-8/67 MOFs were fabricated via a non-solvent induced phase inversion method by incorporating an intermediate solvent evaporation step. MMMs with 5, 10, and 15 wt.% of nanofillers loadings were prepared and tested for single gas (H2, CO2, CH4, and N2) permeability at 1–2 bar pressures. MMMs permeability and selectivities exceeded the Robeson upper bound (2008) for H2/CO2 separation, demonstrating the potential for obtaining high-purity hydrogen at low pressures. H2/N2 selectivity of 43.4, H2/CO2 selectivity of 27.86 for and H2/CH4 selectivity of 31.36 were obtained. Analytical techniques such as XRD, FTIR, and DSC were used to explain the transport mechanism in the MMMs. The cross-sectional structure and morphology of MMMs were analyzed with field-emission scanning electron microscope (FESEM) to provide insights into the membrane's porous structure. en_US
dc.language.iso en en_US
dc.publisher Wiley en_US
dc.subject Chemical engineering en_US
dc.subject Hydrogen production en_US
dc.subject Gas separation en_US
dc.subject Mixed matrix membranes (MMMs) en_US
dc.subject Metal-organic frameworks (MOFs): en_US
dc.title Asymmetric mixed matrix membranes with zeolite imidazolate frameworks (ZIF-8, ZIF-67, bimetallic ZIF-8/67) and polyethersulfone for high flux and high selective hydrogen separation en_US
dc.type Article en_US


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