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

Hou, K; Hughes, R

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