Abstract
The interaction of water and bromine on Ag(110) has been studied in the temperature range 80–300 K, using ESDIAD (electron stimulated desorption ion angular distribution), LEED (low energy electron diffraction) and TDS (thermal desorption spectroscopy). Compared to the clean surface, water adjacent to surface bromide was characterized by a higher binding energy and pronounced orientational order. The mixed adlayers resulting from this surface hydration of bromide exhibited long-range order. The surface hydration number ( n H 2O / n Br) θ Br ≲ 0.25 and decreased to a few tenths at the bromine saturation coverage θ Br ⋍ 0.75 . Comparison is made to the results of a recent similar study on Cu(110) and electrochemical aspects are briefly considered.
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