Figure 5.
(a) CV and (b) Nyquist plots of bare GCE, GO, BT, and BT/rGO in KCl (0.1 M) with [Fe(CN)6]3−/4− (5 mM). The inset in (b) shows an expanded view of EIS profiles of the rGO- and BT/rGO-modified electrodes.
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