What could be the possible reason for the appearance of a peak ~ at -0.58 V for bare Glassy Carbon Electrode (GCE)?

Peak appearing ~ at 0.58 V - 0.56 V. Scan rates tested: 50 mV/s, 100 mV/s, 200 mV/s, and 500 mV/s. for 50 cycles at max. Electrolytes used: 0.1 M NaOH, 0.1 M Phosphate buffer solution (pH-7.4)...

12 July 2023 6,949 3 View