Abstract

Some recent applications of surface vibrational spectroscopies to electrochemical and related interfacial systems are illustrated by means of studies undertaken in the authors' laboratory. The utility of infrared reflection-absorption spectroscopy (IRAS) for linking the structural behavior of adsorbates on ordered metal surfaces in electrochemical and vacuum environments is discussed with reference to a vacuum-based study of CO/D 2O coadsorption on Pt(111). The use of atomic-resolution scanning tunneling microscopy in tandem with in-situ IRAS for electrochemical adlayer structural elucidation is noted. Some virtues of surface-enhanced Raman spectroscopy (SERS) for examining metal-adsorbate vibrations on transition metals in both electrochemical and high-pressure gas-phase systems are also briefly illustrated, specifically for rhodium surface oxidation.

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