Title | Hydrogen purification using ultra-thin palladium films supported on porous anodic alumina membranes |
Publication Type | Conference Paper |
Year of Publication | 2007 |
Authors | Kirchner, A., Brown I.W.M., Bowden M.E., and Kemmitt T. |
Conference Name | Materials Research Society Symposium Proceedings |
Date Published | 2007 |
Keywords | Aluminum 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 |
Abstract | Nanostructured 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. |
URL | http://www.scopus.com/inward/record.url?eid=2-s2.0-70349932855&partnerID=40&md5=9feb4a03492d545a11d3a26c7a9a3cee |