Fig. 8From: Egg Albumin-Assisted Hydrothermal Synthesis of Co3O4 Quasi-Cubes as Superior Electrode Material for Supercapacitors with Excellent PerformancesNyquist plots of Co3O4 cubes and Co3O4 nanosheets-based electrodes in 2 M KOH solution with the fitted equivalent circuit in the insetBack to article page