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. 2016 Jan 4;6(1):7. doi: 10.3390/nano6010007

Figure 2.

Figure 2

(A) Cyclic voltammetry diagrams of the glassy carbon electrode (GCE), GCE/SPAN and GCE/SPAN/MCN, using a 0.1 M KCl solution containing 5.0 mM ferro-/ferri-cyanide, with a potential range of −0.4–0.8 V and a scan rate of 100 mV·s−1; (B) electrochemical impedance spectra of GCE, GCE/SPAN and GCE/SPAN/MCN using a 0.1 M KCl solution containing 5.0 mM ferro-/ferri-cyanide, with a frequency range of 0.1–105 Hz, a bias potential of 0.19 V vs. a saturated calomel electrode (SCE) and an alternating current (AC) amplitude of 5 mV.