Preparation and modification of PdAg membranes by electroless and electroplating process for hydrogen separation

In terms of the H2O(g) effect on the H2 permeation, the hydrogen flux with H2O(g) are 0.3 and 1.0 (mol-m− 2-s− 1) for manual and suction modified samples, when applied pressure difference of 400 kPa and the depletion ratio is 40 and 9%, respectively, much smaller than those reported in the literature. The controlling process is mass transfer for both two samples, resulting from the competition effect of H2 and H2O(g).