The adsorption and oxidation of glycerol on Pt electrodes were investigated by cyclic voltammetry (CV) and in situ FTIR spectroscopy. The results demonstrated that the oxidation of glycerol at a Pt electrode is a complex process of surface, including dehydrogenation, adsorption and dissociation stages. Based on the data acquired from CV and in situ FTIR experiments, the present paper proposed a surface reaction mechanism for glycerol dissociative adsorption, and described reaction procedures at a mol. level of the oxidation of glycerol at different potentials.

Key words: OXIDATION, REACTION MECHANISM, ADSORPTION, ELECTRO-CATALYSIS, GLYCEROL, CYCLOVOLTAMGRAPH, DISSOCIATION, INFRARED REFLECTION SPECTROMETRY, PLATIMUM ELECTRODE