Fig. 6From: Boosting capacitive performance of manganese oxide nanorods by decorating with three-dimensional crushed graphenea Voltage holding with respect to device capacitance (%) at a current density of 2 A g−1. b GCD curves of a symmetric device with MnOx/C-rGO before and after voltage holding test at 2 A g−1 in 1.0 M Na2SO4 solutionBack to article page