One-step construction of Ni2S-coated graphene nanosheets with flower-like architecture as binder-free electrode for efficient supercapacitor applications

Iron-doped nickel sulfide nanospheres anchored on reduced graphene oxide for high performance supercapacitors

“…Ni 2 S coated rGO on Ni foam exhibits a surface capacitance of 3.95 F cm −2 and the capacitance remains 55.5% after 5000 cycles. 35 NiS nanoflakes embedded in carbon fibers show a specific capacitance of 1691.1 F g −1 at 1 A g −1 . 19 The NiS 2 /GO composite shows a specific capacitance of 1020 F g −1 at 1 A g −1 .…”