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<p>The effectiveness of a supercapacitor is greatly influenced by important factors related to the materials used and the synthesis method applied. In this study, we created flower-like NiCo<sub>2</sub>O<sub>4</sub>/CuS/rGO nanocomposites using a simple and straightforward chemical bath deposition (CBD) technique. We then conducted a thorough analysis with various characterization methods. We examined the electrochemical properties through galvanostatic charge–discharge (GCD), cyclic voltammetry (CV), and electrochemical impedance spectroscopy (EIS). These methods revealed impressive cycling stability and excellent redox performance. Our nanocomposite achieved an outstanding specific capacitance (Cp) of 697.77 F/g at 0.5 A/g, and it retained 512 F/g even at 10 A/g. It also demonstrated remarkable electrochemical stability, holding onto 83.33% of its initial capacity after 1000 cycles. These findings truly highlight the exceptional electrochemical capabilities of NiCo<sub>2</sub>O<sub>4</sub>/CuS/rGO nanocomposites, making them highly efficient candidates for supercapacitor electrodes. What’s even more exciting is that their performance surpasses that of previously synthesized materials, showcasing their thrilling potential in next-generation energy storage applications.</p>

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Scalable synthesis of NiCo2O4/CuS/rGO nanocomposites for high performance electrochemical supercapacitor applications

  • 期刊论文

  • 发表日期：

    2026年1月6日

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  • Djaloud Ahamada,
  • P. Baraneedharan,
  • Praveen Ramakrishnan,
  • S. Beer Mohamed

摘要

The effectiveness of a supercapacitor is greatly influenced by important factors related to the materials used and the synthesis method applied. In this study, we created flower-like NiCo2O4/CuS/rGO nanocomposites using a simple and straightforward chemical bath deposition (CBD) technique. We then conducted a thorough analysis with various characterization methods. We examined the electrochemical properties through galvanostatic charge–discharge (GCD), cyclic voltammetry (CV), and electrochemical impedance spectroscopy (EIS). These methods revealed impressive cycling stability and excellent redox performance. Our nanocomposite achieved an outstanding specific capacitance (Cp) of 697.77 F/g at 0.5 A/g, and it retained 512 F/g even at 10 A/g. It also demonstrated remarkable electrochemical stability, holding onto 83.33% of its initial capacity after 1000 cycles. These findings truly highlight the exceptional electrochemical capabilities of NiCo2O4/CuS/rGO nanocomposites, making them highly efficient candidates for supercapacitor electrodes. What’s even more exciting is that their performance surpasses that of previously synthesized materials, showcasing their thrilling potential in next-generation energy storage applications.