Metal nitrides are promising electrodes for high-performance supercapacitors, as they offer high electronic conductivity, thermal stability, excellent power and energy density, and long charging-discharging cycles. In the current study, we fabricated molybdenum nitride electrodes using sputtering at various temperatures, keeping all other sputtering parameters fixed. XRD and Raman analyses were used to elucidate the structure of the prepared electrode. XPS is used to validate the compositional entities present in the synthesized electrodes. The electrode fabricated at 200 \(^\circ{\rm C}\) displayed excellent electrochemical performance exhibiting 4814 F g−1 specific capacitance at 10 mV s−1.