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TitleHydrogen purification using ultra-thin palladium films supported on porous anodic alumina membranes
Publication TypeConference Paper
Year of Publication2007
AuthorsKirchner, A., Brown I.W.M., Bowden M.E., and Kemmitt T.
Conference NameMaterials Research Society Symposium Proceedings
Date Published2007
KeywordsAluminum sheet, Anodic alumina membranes, Carbon dioxide, Ceramic materials, high temperature, hydrogen, Hydrogen permeation, Hydrogen purification, Nano-structured, Nanostructured materials, Palladium, Palladium films, Porous anodic alumina membranes, Reducing atmosphere, Rotating substrates, Thermal stability, Thermodynamic stability, Ultra-thin, Vacuum evaporation
AbstractNanostructured anodic alumina membranes have been utilized as high-temperature stable supports for 150 nm thick continuous palladium films. The palladium has been deposited by vacuum evaporation onto the rotating substrate. The thermal stability of the resulting compound membranes has been demonstrated for temperatures up to 700°C under a reducing atmosphere. Hydrogen permeation has been measured up to 280°C, where the permeability has a value of 2.5×10-7 mol m-2 s-1 Pa-1. At the same time the selectivity factor over carbon dioxide is at least 33. Copyright © 2007 Materials Research Society.

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