FIGURE 2.

Cyclic voltammograms of CcO with the his-tag attached to SU II under strictly anaerobic conditions. (a) Scan rates a between 0.1 and 1 Vs⁻¹, 0.01 V s⁻¹ (green), 0.02 V s⁻¹ (orange), 0.03 V s⁻¹ (dark blue), 0.05 V s⁻¹ (light blue), 0.075 V s⁻¹ (red), and 0.1 V s⁻¹ (black). (Inset) Baseline-corrected current density plotted as a function of scan rate, reductive branch (red), oxidative branch (green). (b) Oxidative branches (baseline-corrected) of CVs at scan rates between 1 and 600 Vs⁻¹ (current densities normalized by the scan rate, ν ≅ 1 Vs⁻¹) 1 V s⁻¹ (red), 3 V s⁻¹ (black), 7.5 V s⁻¹ (green), 20 V s⁻¹ (orange), 40 V s⁻¹ (pink), 300 V s⁻¹ (blue), 400 V s⁻¹ (violet), 500 V s⁻¹ (gray), 600 V s⁻¹ (light blue). (Inset) Example of a deconvolution into four Gaussian components.