A novel porous rod with nanosphere CuS2/NiFe2O4 nanocomposite for low-cost high-performance energy storage system

Spinel ferrites have lately gained popularity owing to their unique properties like high electrochemical stability, redox states & pseudocapacitive activity for supercapacitors applications. In present study, firstly rationally designed CuS2/NiFe2O4 nanostructure is fabricated using a simple and efficient single step hydrothermal route. The resultant CuS2/NiFe2O4 outperforms the capacitance efficiency of the CuS2 and NiFe2O4 due to the synergistic effect. The CuS2/NiFe2O4 nanocomposite responses greater specific capacitance of 1329.54 F g(-1) at 1.0 A g(-1), & nanocomposite electrode employed more than 96.21% of its capacitance around 5 A g(-1) even after 5000 cycles. Hence, electrochemical efficiency could be boast up by tailoring in the morphology, surface interfaces and creation of oxygen vacancy. Therefore, this hybrid material might also be employed for water splitting catalysts, Na-ion hybrid capacitors, and other difficult energy storage and conversion devices.

Automated summary

In this study, a CuS2/NiFe2O4 nanostructure was fabricated using a one-step hydrothermal method. The CuS2/NiFe2O4 nanocomposite exhibited higher capacitance efficiency than individual CuS2 and NiFe2O4 materials, owing to the synergistic effect. The nanocomposite electrode showed a specific capacitance of 1329.54 F g(-1) at 1.0 A g(-1), and retained over 96.21% of its capacitance even after 5000 cycles. This hybrid material has potential applications in water splitting catalysts, Na-ion hybrid capacitors, and other energy storage and conversion devices.