Fig. 4From: Boosting capacitive performance of manganese oxide nanorods by decorating with three-dimensional crushed grapheneTwo-electrode system measurements: a CV curves at a scan rate of 20 mV s−1; b GCD curves at a current density of 0.3 A g−1; c Specific capacitances of symmetric devices based on MnOx/S-rGO and MnOx/C-rGO at different current densities, and d Nyquist plots of symmetric devices based on MnOx/S-rGO and MnOx/C-rGOBack to article page