Oscillatory behavior of Rh/YSZ under electropromoted conditions

► Electrochemically induced oscillatory phenomena were investigated on Rh films. ► Oscillations period and amplitude were analyzed depending on the polarization. ► Oscillations were related with cyclic oxidation and reduction of the rhodium. ► Amplitude increased linearly with the potential and period remained almost constant. ► Amplitude was strongly dependent on the temperature due to changes in YSZ conductivity.