Abstract
The anodic oxidation of CH3OH has been studied in sulphuric acid solution on platinized platinum electrodes. It has been demonstrated that the oxidation occurs predominantly through the over-all reaction, involving 6 electrons, CH3OH + H2O → CO2 + 6H+ + 6e, although no noticeable evolution of CO2 can be seen at low current densities.Potentiokinetic curves drawn at very low speed and with easily reproducible initial conditions have led to the minimum oxidation potentials. We have also studied (1) the optimum preparation of the anode to obtain, for constant current electrolysis, the longest time θ of low-potential oxidation of CH3OH and (2) the variation of θ with initial concentration of CH3OH. Finally, we have studied the anodic oxidation products and the CO2 faradaic yields.
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