Figure 3From: Solution growth of NiO nanosheets supported on Ni foam as high-performance electrodes for supercapacitorsFESEM images of Ni foam and NiO nanosheets. (a) Low-magnification FESEM image of the nickel foam. (b, c) Low- and high-magnification FESEM images of the NiO nanosheets. (d) FESEM images of the NiO nanosheets after charging/discharging for 3,000 cycles.Back to article page