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Preparation of thin and highly stable Pd/Ag composite membranes and simulative analysis of transfer resistance for hydrogen separation

Hou, K; Hughes, R

Authors

K Hou

R Hughes



Abstract

Composite Pd/Ag membranes supported on an alpha-alumina substrate have been prepared by sequential electroless plating and the morphology of the membranes has been examined by SEM and XRD analysis. SEM pictures revealed that the Pd/Ag film was of columnar form perpendicular to the substrate. Homogeneous alloy films of Pd/Ag were obtained by annealing the separate Pd and Ag deposited layers at temperatures higher than 600oC in a hydrogen atmosphere.Hydrogen fluxes of up to 0.35mol/(m2s) and hydrogen/nitrogen selectivities of 4500 were obtained and a long-term temperature cycling test showed no deterioration in membrane performance. A simulative analysis was carried out to investigate the effect of boundary layer and the distribution of hydrogen transfer resistance between the boundary layer, the Pd/Ag film and the substrate.

Citation

Hou, K., & Hughes, R. (2003). Preparation of thin and highly stable Pd/Ag composite membranes and simulative analysis of transfer resistance for hydrogen separation. Journal of Membrane Science, 214(1), 43-55. https://doi.org/10.1016/S0376-7388%2802%2900525-2

Journal Article Type Article
Publication Date Apr 1, 2003
Deposit Date Sep 3, 2007
Journal Journal of Membrane Science
Print ISSN 0376-7388
Publisher Elsevier
Peer Reviewed Peer Reviewed
Volume 214
Issue 1
Pages 43-55
DOI https://doi.org/10.1016/S0376-7388%2802%2900525-2
Publisher URL http://dx.doi.org/10.1016/S0376-7388(02)00525-2