Polymer supported ZIF-8 membranes by conversion of sputtered zinc oxide layers
作者： Pradeep Neelakanda , Eva Barankova , Klaus-Viktor Peinemann
DOI: 10.1016/J.MICROMESO.2015.08.038
关键词: Nucleation 、 Polyacrylonitrile 、 Sputter deposition 、 Membrane 、 Scanning electron microscope 、 Permeance 、 Zinc 、 Hydrogen 、 Inorganic chemistry 、 Materials science
摘要: Abstract ZIF-8 composite membranes were synthesized at room temperature from aqueous solution by a double-zinc-source method on polyacrylonitrile (PAN) porous supports. The support was coated with zinc oxide (ZnO) magnetron sputtering prior to growth improve the nucleation as well adhesion between layer and support. By this method, we able grow continuous, dense, very thin (900 nm) defect free polymeric developed had gas permeance of 1.23 × 10−7 mol m−2 sec−1 Pa−1 for hydrogen selectivity 26 hydrogen/propane gases which is 5 times higher than Knudsen selectivity. X-ray diffraction (XRD) scanning electron microscopy (SEM) analysis done characterize membranes.
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