Figure 6
(a) Linear sweep voltammetry (scan rate of 20 mV/s) of O2 on glassy carbon electrode coated with different MnOx in acetate buffer at pH 6.0 containing 1.0 M KCl. (b) The correlation between the logk O2 of ABTS oxidation and the onset potential of O2 reduction with different MnOx nanomaterials.
