“…One from our laboratory is shown in can conduct the ex-situ EXAFS analyses before and after use in cells, and determine the effect of electrolysis on the alloy structure. Examples of such studies may be found in the reports by Beard and Ross [25,26]. 17 Finally, there is the question of determining the surface composition of supported alloy crystallites/clusters, which is the most difficult, but most relevant,-information to obtain.…”