Figure 4
(a) Cyclic voltammograms in 1 M KCl aqueous solution. The scan rate is 0.1 V s−1. (b) GCD curves for the LIG/ZnO (profile C) electrode. The capacitance dependence on the current density (bottom inset) and the comparison with bare LIG and LIG/ZnO (profile A) electrodes (top right inset) are also shown.
