Modes of Attachment of Pyridine to Gold Surfaces

摘要

The adsorption of pyridine onto both polycrystalline and single crystal goldelectrode surfaces has been investigated using three electrochemical techniques: cyclic voltammetry, differential capacity and chronocoulometry. The surface concentration of pyridine, the Gibbs energy of adsorption, the electrosorption valency and the orientation of the pyridine molecules on the gold electrode surfaces, have been measured. All of these parameters were found to be sensitive to the structure of the gold electrode surface. Keywords: Pyridine adsorption; Au (100); Au (110); Au (111); Polycrystalline; Energetics; Orientation. (kt)