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<p>Present study reports an ecofriendly sugar- assisted exfoliation approach for the synthesis of graphitic carbon nitride (g-C<sub>3</sub>N<sub>4</sub>) nanosheets and their synergistic combination with nickel ferrite (NiFe₂O₄) nanoparticles to form an efficient nanocomposite electrode material. The novelty of the present work lies in the unique combination of green exfoliation technique and engineering of NiFe₂O₄/g-C₃N₄ nanocomposite to improve the electrochemical performance of electrode via the synergistic effect between the nitrogen rich g-C₃N₄ nanosheets and pseudocapacitive NiFe₂O₄. Comprehensive structural, morphological and physiochemical investigations of synthesized nanocomposite were performed using various analytical techniques. The results confirmed the successful synthesis of crystalline NiFe₂O₄/g-C₃N₄ nanocomposites, indicating the coexistence and structural integrity of both constituent phases along with evidence of interfacial heterojunction formation. Electrochemical properties of individual constituents and synthesized nanocomposite were investigated and compared using cyclic voltammetry (CV), galvanometric charge discharge (GCD) and electrochemical impedance spectroscopy (EIS). The optimized NiFe₂O₄/g-C₃N₄ nanocomposite electrode exhibited improved galvanostatic charge/discharge with a higher specific capacitance of 222&#xa0;F g⁻¹ at a current density of 0.70&#xa0;A g⁻¹ in 6&#xa0;M KOH electrolyte as compared to specific capacitance of bare NiFe₂O₄ (160&#xa0;F g⁻¹) and g-C₃N₄ (102&#xa0;F g⁻¹).</p> Graphical abstract <p>Engineered NiFe₂O₄/g-C₃N₄ nanocomposite with the aim to explore the synergistic effect of fructose exfoliated g-C₃N₄ with NiFe₂O₄ in designing electrode material for supercapacitor. The enhanced electrochemical performance of present nanocomposite is attributed to the integration of EDLC from graphitic carbon nitride and pseudocapacitance from nickel ferrite nanoparticles.</p> <p></p>

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Graphitic Carbon Nitride Decorated Nickel Ferrite Nanocomposite as Efficient Electrode Material for High-Performance Supercapacitors

  • 期刊论文

  • 发表日期：

    2026年7月22日

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  • Parul Singh,
  • Aparna Shekhar,
  • Yogesh Kumar,
  • Vaishali Arora,
  • Umesh Kumar

摘要

Present study reports an ecofriendly sugar- assisted exfoliation approach for the synthesis of graphitic carbon nitride (g-C3N4) nanosheets and their synergistic combination with nickel ferrite (NiFe₂O₄) nanoparticles to form an efficient nanocomposite electrode material. The novelty of the present work lies in the unique combination of green exfoliation technique and engineering of NiFe₂O₄/g-C₃N₄ nanocomposite to improve the electrochemical performance of electrode via the synergistic effect between the nitrogen rich g-C₃N₄ nanosheets and pseudocapacitive NiFe₂O₄. Comprehensive structural, morphological and physiochemical investigations of synthesized nanocomposite were performed using various analytical techniques. The results confirmed the successful synthesis of crystalline NiFe₂O₄/g-C₃N₄ nanocomposites, indicating the coexistence and structural integrity of both constituent phases along with evidence of interfacial heterojunction formation. Electrochemical properties of individual constituents and synthesized nanocomposite were investigated and compared using cyclic voltammetry (CV), galvanometric charge discharge (GCD) and electrochemical impedance spectroscopy (EIS). The optimized NiFe₂O₄/g-C₃N₄ nanocomposite electrode exhibited improved galvanostatic charge/discharge with a higher specific capacitance of 222 F g⁻¹ at a current density of 0.70 A g⁻¹ in 6 M KOH electrolyte as compared to specific capacitance of bare NiFe₂O₄ (160 F g⁻¹) and g-C₃N₄ (102 F g⁻¹).

Graphical abstract

Engineered NiFe₂O₄/g-C₃N₄ nanocomposite with the aim to explore the synergistic effect of fructose exfoliated g-C₃N₄ with NiFe₂O₄ in designing electrode material for supercapacitor. The enhanced electrochemical performance of present nanocomposite is attributed to the integration of EDLC from graphitic carbon nitride and pseudocapacitance from nickel ferrite nanoparticles.