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. 2020 Feb 25;20(5):1252. doi: 10.3390/s20051252

Figure 3.

Figure 3

(A) Cyclic voltammograms for different electrodes recorded in a KNO3-ferricyanide media (5 mM K3[Fe(CN)6] in 0.2 M KNO3 at a scan rate of 50 mV/s; (B) Bar graph of the peak current densities of the different electrodes.