Characteristics of the Fluorocarbon Surface Film Generated on Carbon Anode during F[sub 2] Evolution in Molten KF-2HF

Abstract

During the fluorine evolution reaction occurring in the electrolysis of molten KF-2HF, a thin, solid fluorocarbon layer is formed on the carbon anode. The high anodic overvoltage which characterized this process is mainly due to the presence of such a film which drastically changes the wettability of the electrode by the melt...