Surface enhanced Raman scattering from bare cobalt electrode surfaces

摘要

Surface enhanced Raman spectra (SERS) of adsorbed species from a bare cobalt (Co) bulk electrode werenobserved for the first time with confocal Raman microscopy. A combined AFM, Raman and electrochemicalnstudy shows that a proper roughening procedure is vitally important for obtaining good-quality surface Ramannspectra from the Co electrode. The surface enhancement factor ranges from 2 to 3 orders of magnitude,ndepending critically on the surface roughening procedure. The present study provides a bright prospect for thenwide investigation of systems of practical application.