Fig. 1.

Cyclic voltammogram of characterization of different electrodes (different color lines) in a solution of 1 mmol/L potassium ferrocyanide and 0.1 mol/L potassium chloride with a potential range of −0.1 to 0.6 V at a scan rate of 0.05 V/s

Note: for interpretation of the references to color in this figure legend, the reader is referred to the web version of this article