GENERAL SCHEME FOR CHEMISORPTION, ELECTROOXIDATION, AND ELECTROREDUCTION PROCESSES OF SIMPLE ORGANIC SUBSTANCES AT PLATINUM-GROUP METALS.

All of the experimental data on the adsorption, electrooxidation, and electroreduction of simple organic substances from methane to CO//2 on the platinum-group metals can be well explained with the aid of a general scheme which takes into account that the dehydrogenation, oxidation, and reduction processes occur in steps and that the chemisorbed particles are interconverted. It is shown that the apparent disagreement between the experimental data on adsorption and on oxidation of simple organic substances is due to neglect of the possible interconversion of the chemisorbed particles.