The OCP across the WE (LSCO/GCE modified electrode) and reference electrode was measured as a function of time in KOH and KOH + methanol. The measurements were performed for a total duration of 40,000 seconds. It was observed that in the KOH medium the OCP exhibits non steady state behaviour (Figure ). First, the potential rises in the KOH medium as a result of OH -being adsorbed onto the catalyst surface. The system was kept running for about 6000 seconds still the saturation potential could not be obtained. Thus, there is a strong possibility that a dynamic exchange of some reactive species (lattice oxygen) from the catalyst's surface is occurring. RRDE experiments have already validated this phenomenon.