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- W2943612816 abstract "This study explored the application of MOF-modified membrane for gas separation. Microporous aluminum fumarate (A520) was used to modify polyimide (PI) membrane using N-methylpyrrolidone (NMP) as solvent. The MOF-modified mixed matrix membrane (MMM) was subjected to gas permeability tests, using gas permeability apparatus (GPA). GPA results showed that adding 10wt% MOF to the membrane increased permeabilities of N 2 and CO 2 gases by up to 34%, and by 19% for O 2 gas, without compromising selectivity. Further increasing MOF loading beyond 10wt% considerably decreased selectivities despite significantly increased permeabilities. Cahn adsorption experiment confirmed and supported this GPA data. These results indicate that MOF were successfully intercalated with the polymer as revealed by scanning electron microscope (SEM) images. Other characterizations like dynamic mechanical analysis (DMA), x-ray diffraction (XRD), and positron annihilation lifetime spectroscopy (PALS) showed that the interface and mechanical properties of the MMM also improved. MOF loading beyond 10wt% revealed aggregations forming non-selective voids that probably caused lowered selectivity." @default.
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- W2943612816 date "2019-05-01" @default.
- W2943612816 modified "2023-09-24" @default.
- W2943612816 title "MOF-Modified High Permeability Polyimide Membrane for Gas Separation" @default.
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- W2943612816 doi "https://doi.org/10.4028/www.scientific.net/kem.801.313" @default.
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