ZIF-67 derivatives show promising applications in energy storage owing to their high surface area andexcellent electrochemical performance. In this work, an N-doped carbon-coated CoMoO4 nanoparticle(CMO@NC) polyhedron was prepared by hydrothermal treatment and calcination. The structural andmorphological properties of the obtained samples were measured by X-ray diffraction (XRD), scanningelectron microscopy (SEM) and N2 adsorption/desorption isotherms. In terms of electrochemicalperformance, CMO@NC exhibits a remarkable specific capacitance of 267.3 F g-1at 0.5 A g-1.Moreover, a hybrid supercapacitor device with CMO@NC as the positive electrode material and activecarbon (AC) as the negative electrode material was observed to achieve a specific capacitance of 114 Fg-1at 0.5 A g-1, with a stable operational voltage of 1.5 V and a maximum energy density of 35.4 Whkg-1at a power density of 1041 W kg-1. The specific capacitance retention can reach up to 82.4 % after5000 cycles, as determined by GCD measurements, indicating outstanding cycling stability and potentialapplication prospects in supercapacitors.
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