Atr-Raman Spectroscopic Studies of Water on Single Crystalline Cu Electrodes

摘要

Superatomic surface roughness is one of the prerequisite for providing surface enhancement for most of electrochemical SERS studies, but the complexes of the surface roughness and its changes with external environment, e.g. changes with electrode potential, temperautre etc. cause great problems in studying the origins of the enhancement and make the correlation of the Raman signal with surface concentration and adsorption configuration of the detected species uncertain. In rder to surmunt these difficulities, attenuated total refection (ATR)-Raman method whic yields electromagnetic enhancement on smooth as well as on single crystalline metal surface become possible. Here we presnet some of oru results on ATR-Raman spectroscopic studies of the adsorption of water on Cu(110) and a (110) vicinal electrode surfaces.