The electrochemical reduction of oxygen on electrodeposited palladium coatings was
studied in acid and alkaline media employing the rotating disc electrode (RDE) method.
Gold was used as an electrode substrate and Pd was deposited at a constant potential
varying the deposition time. Cyclic voltammetry and CO stripping experiments were used for
surface characterisation of Pd coatings. The surface morphology of the as-prepared
electrodes was examined by atomic force microscopy (AFM). The AFM images revealed the …