Abstract
Multiple specular reflection has been used to examine the gold electrode in acid and alkaline solutions. Reflectivity‐potential and linear sweep voltammetry curves have been recorded simultaneously. The wavelength dependence indicates that reflectivity changes with potential arise principally because of the interaction of the d‐c electric field at the interface with the internal photoelectric effect in gold corresponding to a 5d → 6s band transition. The results demonstrate that multiple specular reflection techniques are particularly well suited to in situ studies of the specific adsorption of ions, the formation of mono‐ and polylayer oxides, and the Faraday adsorption of ions such as lead and cadmium to form monolayers of these metals on gold.
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