Figure 4
Comparison of cyclic voltammetric curves for planar ITO/glass (a), and ITO/Au/40 µm GCA (b) WEs in an electrolyte that contained 0.1 M phosphate, pH 7.0, and 0.5 mM Co(NO3)2·6H2O. CV traces were recorded using 5 mV s−1 scan rates, and following 0 min, 30 min and 60 min of otherwise continuous electrolysis at 1.34 V (versus NHE). |