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Related Experiment Video

Updated: Jul 12, 2026

Evaluating the Electrochemical Properties of Supercapacitors using the Three-Electrode System
12:00

Evaluating the Electrochemical Properties of Supercapacitors using the Three-Electrode System

Published on: January 7, 2022

Graphene-enhanced NiMn2O4 composite for high-performance supercapacitor applications.

Pakeeza Aymen Nawaz1, Muhammad Boota1, Ali Mujtaba2

  • 1Department of Physics, The University of Lahore Lahore 54000 Pakistan.

RSC Advances
|July 11, 2026
PubMed
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Journal of molecular graphics & modelling·2026

This study developed a Graphene@NiMn2O4 composite for supercapacitors, significantly boosting energy storage capacity. The novel material demonstrates enhanced electrochemical performance, paving the way for advanced energy storage solutions.

Area of Science:

  • Materials Science
  • Electrochemistry
  • Nanotechnology

Background:

  • Growing global demand for efficient and sustainable energy storage solutions.
  • Need for advanced materials to address the energy crisis.
  • Supercapacitors are crucial for next-generation energy storage devices.

Purpose of the Study:

  • Synthesize and evaluate the electrochemical performance of a NiMn2O4 and Graphene@NiMn2O4 composite.
  • Investigate the synergistic effects of graphene integration with NiMn2O4 for supercapacitor applications.
  • Explore the potential of Graphene@NiMn2O4 as a high-performance electrode material.

Main Methods:

  • Synthesis of NiMn2O4 and Graphene@NiMn2O4 composite.
  • Material characterization using X-ray diffraction (XRD), Raman spectroscopy, and Scanning Electron Microscopy (SEM).

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Synthesis and Functionalization of 3D Nano-graphene Materials: Graphene Aerogels and Graphene Macro Assemblies
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Synthesis and Functionalization of 3D Nano-graphene Materials: Graphene Aerogels and Graphene Macro Assemblies

Published on: November 5, 2015

Related Experiment Videos

Last Updated: Jul 12, 2026

Evaluating the Electrochemical Properties of Supercapacitors using the Three-Electrode System
12:00

Evaluating the Electrochemical Properties of Supercapacitors using the Three-Electrode System

Published on: January 7, 2022

Synthesis and Functionalization of 3D Nano-graphene Materials: Graphene Aerogels and Graphene Macro Assemblies
10:23

Synthesis and Functionalization of 3D Nano-graphene Materials: Graphene Aerogels and Graphene Macro Assemblies

Published on: November 5, 2015

  • Electrochemical performance evaluation via Cyclic Voltammetry (CV), Galvanostatic Charge-Discharge (GCD), and Electrochemical Impedance Spectroscopy (EIS).

    • Main Results:

    • Graphene@NiMn2O4 composite exhibited superior specific capacitance (301 F g⁻¹ at 0.8 A g⁻¹) compared to pure NiMn2O4 (229 F g⁻¹).
    • The composite showed improved energy density (3.8 Wh kg⁻¹ at 0.8 A g⁻¹) and enhanced charge transport properties.
    • Characterization confirmed successful hybridization, improved morphology, and increased defect density beneficial for charge storage.

    Conclusions:

    • Graphene@NiMn2O4 composite demonstrates significant potential as a promising material for high-performance supercapacitors.
    • The integration of graphene effectively enhances the electrochemical properties of NiMn2O4.
    • Further optimization of the composite structure is recommended for commercial supercapacitor applications.