Electrochemical studies of semiconducting SnO2‐electrodes

Abstract

AbstractThe electrochemical behavior of SnO2‐electrodes was studied. SnO2 shows typical properties of a semiconducting electrode. The oxygen evolution proceeds via the valence band whereas most redox processes occur via the conduction band. Since the potential distribution at the interface is of great importance for charge transfer processes at SnO2 it was investigated in detail. It could be shown that the doping of SnO2 and the composition of the electrolyte strongly influence the potential distribution and consequently the charge transfer processes.