Earlier work, based upon ex situ surface analytical measurements, found that a disordered
Pd (111) surface can be spontaneously reordered upon exposure, at ambient conditions, to
a dilute aqueous solution of iodide. This phenomenon has been re-examined by in situ atom-
resolved scanning tunneling microscopy. The results from the present study, while
corroborating the chemisorption-induced disorder-to-order surface reconstruction observed
earlier, indicate that the kinetics of the structural rearrangements may not be as rapid as …