Facile synthesis Mn/Co dual-doped Ni3S2 nanosheets for supercapacitor

Ni3S2 nanosheets dual-doped with manganese, cobalt elements on conductive nickel foam (MC-Ni3S2) had been synthesized by two steps hydrothermal and directly applied as the electrode for high-performance electrochemical Supercapacitors (SCs). A plausible mechanism is proposed to explain the formation of the manganese, cobalt elements dual-doped Ni3S2 nanosheets. SCs electrodes based on the MC-Ni3S2 nanosheets are characterized and exhibit a specific capacitance of 2922 F g(-1) (365.3 mAh g(-1)) at 2 A g(-1). After 2000 cycles, it exhibited an excellent cycling stability owing to the unique nanosheets architecture providing fast ion/electron transfer. The fabricate approach may offer a new strategy for the synthesis of other mix transition metal sulfide for applications in supercapacitor.

Automated summary

In this study, Ni3S2 nanosheets dual-doped with manganese and cobalt elements were synthesized and applied as electrodes for high-performance electrochemical Supercapacitors (SCs). A plausible mechanism for the formation of the dual-doped Ni3S2 nanosheets is proposed. The electrodes based on these nanosheets exhibit high specific capacitance and excellent cycling stability at high current densities.