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<p>MXene-based supercapacitors have emerged as a transformative class of electrochemical energy storage devices due to their exceptional electrical conductivity, tunable surface chemistry and high specific capacitance. This review provides a comprehensive and critical analysis of recent advances in MXene-based electrodes, focusing on synthesis strategies, charge storage mechanisms and structural engineering approaches such as 3D architectures and hybrid composites. Unlike previous reviews, this work systematically correlates MXene physicochemical properties with electrochemical performance, highlighting key challenges including restacking effects, limited ion accessibility and scalability issues. Furthermore, emerging solutions such as surface functionalization, interlayer spacing control and composite integration are discussed in detail. The review concludes by outlining future research directions toward practical device implementation, emphasizing scalable fabrication, stability enhancement and integration into next-generation flexible and hybrid energy storage systems.</p>

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Review: Revolutionizing energy storage with MXene-based supercapacitors as a paradigm shift in high-performance electrochemical devices

  • 期刊论文

  • 发表日期：

    2026年5月19日

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  • Humaira Rashid Khan,
  • M. K. M. Ali,
  • A. I. Aljameel,
  • Mohammad Arishi,
  • Mohd Imran,
  • Mohd. Arif

摘要

MXene-based supercapacitors have emerged as a transformative class of electrochemical energy storage devices due to their exceptional electrical conductivity, tunable surface chemistry and high specific capacitance. This review provides a comprehensive and critical analysis of recent advances in MXene-based electrodes, focusing on synthesis strategies, charge storage mechanisms and structural engineering approaches such as 3D architectures and hybrid composites. Unlike previous reviews, this work systematically correlates MXene physicochemical properties with electrochemical performance, highlighting key challenges including restacking effects, limited ion accessibility and scalability issues. Furthermore, emerging solutions such as surface functionalization, interlayer spacing control and composite integration are discussed in detail. The review concludes by outlining future research directions toward practical device implementation, emphasizing scalable fabrication, stability enhancement and integration into next-generation flexible and hybrid energy storage systems.