%0 Journal Article %T Preparation of palladium-silver alloy membranes for hydrogen permeation %A E. L. Foletto %A J. V. Wirbitzki Da Silveira %A S. L. Jahn %J Latin American applied research %D 2008 %I Scientific Electronic Library Online %X Pd-Ag alloy membranes (with different silver contents) have been prepared by electroless plating technique for hydrogen separation. The surface morphology and phase structures of the composite membranes were investigated using a scanning electron microscope and a X-ray diffractometer, respectively. Hydrogen permeation experiments through the membranes synthesized at different hydrogen pressures (50 - 250 kPa) and temperatures (623 - 823 K) are reported. The experimental results reveal that the membranes showed a considerable enhancement in the hydrogen permeation and that the contribution of surface process for permeation was significant at high temperatures. %K Membrane Preparation %K Palladium-Silver %K Hydrogen Permeation %U http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0327-07932008000100010