Fabrication of Polybenzimidazole/Palladium Nanoparticles Hollow Fiber Membranes for Hydrogen Purification |
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| Authors: | Luis Francisco Villalobos Roland Hilke Faheem Hassan Akhtar Klaus‐Viktor Peinemann |
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| Affiliation: | King Abdullah University of Science and Technology (KAUST), Advanced Membranes and Porous Materials Center, Thuwal, Kingdom of Saudi Arabia |
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| Abstract: | A novel scheme to fabricate polybenzimidazole (PBI) hollow fiber membranes with a thin skin loaded with fully dispersed palladium nanoparticles is proposed for the first time. Palladium is added to the membrane during the spinning process in the form of ions that coordinate to the imidazole groups of the polymer. This is attractive for membrane production because agglomeration of nanoparticles is minimized and the high‐cost metal is incorporated in only the selective layer—where it is required. Pd‐containing membranes achieve three orders of magnitude higher H2 permeances and a twofold improvement in H2/CO2 selectivity compared to pure PBI hollow fiber membranes. |
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| Keywords: | CIPS hollow fibers hydrogen recovery palladium nanoparticles polybenzimidazole |
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