ANODIC BEHAVIOUR OF Co <sub>2</sub>Si- ELECTRODE. AN IMPROVED MODEL FOR THE SELECTIVE DISSOLUTION OF COBALT
The impedance of a Co 2Si electrode in solutions 0.5 М H 2SO 4 and 0.5 М H 2SO 4 + x M NaF (x = 0.005 - 0.05) in the potential range of active dissolution is analyzed using models that take into account not only the selective dissolution of cobalt but the electrochemical oxidation of silicon as well.