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<p>Hybrid nanostructures are promising materials for supercapacitor electrodes of highly specific capacitance and long cycle life. They may be accomplished by integrating various active materials with a hybrid structure. Herein, copper oxide embedded carbon nanomaterials (CuO/C) were synthesized via thermal treatment at 400, 500, and 700&#xa0;°C of a copper-based metal–organic framework (Cu-MOF) to construct high-performance hybrid supercapacitor materials. The electrochemical properties of the CuO/C were characterized using cyclic voltammetry (CV), galvanostatic charge–discharge (GCDC), and electrochemical impedance spectroscopy (EIS). MOF-derived CuO@C at 500&#xa0;°C, CuMOF_500 exhibited the highest electrochemical characteristics, with a specific capacitance of 882 F<b>/</b>g at a current density of 1 A<b>/</b>g. Their remarkable cycling stability is demonstrated by the capacitance retention, which remained at 90.9% after 5000 cycles. These values illustrate the potential of CuO/C composites as a promising candidate for an electroactive material for electrode preparation in next-generation energy storage systems.</p>

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CuO Nanoparticles on Carbon from Copper-Based Metal–Organic Frameworks (MOF) for Energy Storage

  • 期刊论文

  • 发表日期：

    2025年9月29日

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  • Faisal K. Algethami,
  • Sherief A. Al Kiey,
  • Hani Nasser Abdelhamid

摘要

Hybrid nanostructures are promising materials for supercapacitor electrodes of highly specific capacitance and long cycle life. They may be accomplished by integrating various active materials with a hybrid structure. Herein, copper oxide embedded carbon nanomaterials (CuO/C) were synthesized via thermal treatment at 400, 500, and 700 °C of a copper-based metal–organic framework (Cu-MOF) to construct high-performance hybrid supercapacitor materials. The electrochemical properties of the CuO/C were characterized using cyclic voltammetry (CV), galvanostatic charge–discharge (GCDC), and electrochemical impedance spectroscopy (EIS). MOF-derived CuO@C at 500 °C, CuMOF_500 exhibited the highest electrochemical characteristics, with a specific capacitance of 882 F/g at a current density of 1 A/g. Their remarkable cycling stability is demonstrated by the capacitance retention, which remained at 90.9% after 5000 cycles. These values illustrate the potential of CuO/C composites as a promising candidate for an electroactive material for electrode preparation in next-generation energy storage systems.