ELECTROCHEMICAL-BEHAVIOR OF GOLD ELECTRODEPOSITS WITH AND WITHOUT ORGANIC-COMPOUNDS IN KOH

The electrochemical behavior of pure gold and gold deposited titanium electrodes are investigated by cyclic voltammetry (CV) and linear swee p voltammetry (LSV) techniques with and without the addition of organi cs in KOH solutions. CV results reveal that oxygen evolves after the s urface saturation with OH/OH-, while organic compounds oxidize in the presence of various Au-OH complexes before the formation of hydroxyl m onolayer. LSV results show that benzaldehyde, benzyl alcohol, and etha nol oxidize in the potential range of -0.8 to 0.2 V, -0.6 to 0.2 V, an d - 0.2 to 0.2 V, respectively.