Electrochemical Reduction of Oxygen on Anthraquinone/Carbon Nanotubes Nanohybrid Modified Glassy Carbon Electrode in Neutral Medium
Figure 7
RDE voltammetry curves of oxygen reduction on (a) MHAQ/GC and (c) MHAQ/MWCNTs/GC electrodes in pH 7.0 O2-saturated solutions at various rotation rates. Scan rate: 10 mV s−1. The Koutecky-Levich plots of oxygen reduction on (b) MHAQ/GC and (d) MHAQ/MWCNTs/GC electrodes at various cathodic potentials. The insets in (a) and (c) show the potential dependence of the number of electrons transferred per O2 molecule.
