The electro-oxidation of glycerol on the gold(100)-oriented single-crystal surface and poly crystalline surface in 0.1 M NaOH

Abstract

Studies of chemical and electrochemical reactions at well-defined surfaces provide additional data on surface reactivity and guidelines for the understanding and design of catalytic materials. In this work, the oxidation of glycerol on a gold single-crystal surface with a (100) orientation has been studied with the aim of investigating the interfacial properties of the electrode surface in the absence and presence of glycerol. The change in the interfacial properties gives useful information about the nature of OH adsorption on an Au (100) electrode and about the process of adsorption and faradaic oxidation of glycerol in 0.1 M NaOH. The electrosorption of glycerol was also investigated at a polycrystalline gold electrode, by programmed potential voltammetry, in order to confirm the results obtained by double-layer capacity measurements.