Research Article

Electrochemical Reduction of Oxygen on Anthraquinone/Carbon Nanotubes Nanohybrid Modified Glassy Carbon Electrode in Neutral Medium

Figure 8

(a) Nyquist plots obtained from EIS measurements in pH 7.0 N2- and O2-saturated solutions on the bare GC, MWCNTs/GC, MHAQ/GC, and the MHAQ/MWCNTs nanohybrid modified GC electrodes at a cathodic polarization potential of −0.4 V. (b) the applied equivalent circuit model.
756307.fig.008a
(a)
756307.fig.008b
(b)