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<p>Due to their unique properties, which include their enormous surface areas, flexible pore designs, and pseudocapacitive mechanisms that allow them to store charge, metal–organic frameworks (MOFs) show great promise as advanced electrodes. A straightforward hydrothermal process successfully created a new composite material with a CrCo<sub>2</sub>O<sub>4</sub>@Co-MOF. The composite has exhibited exceptional electrochemical characteristics when working as an electrode in supercapacitor devices. An inspiring specific capacity value of 1075.63 C/g is displayed by the CrCo<sub>2</sub>O<sub>4</sub>@Co-MOF electrode in a three-cell configuration, showcasing its outstanding capability to store energy. The hybrid supercapacitor (HSC), comprised of CrCo<sub>2</sub>O<sub>4</sub>@Co-MOF and activated carbon, shows a significant specific capacity of 291 C/g at a current density of 1.5 A/g. In addition, it demonstrates remarkable cycling performance, maintaining 90% of its capacity after 6,000 cycles. The work showcases the promise of a new hybrid based on structured Co-MOFs electrode materials for supercapacitors with exceptional performance. We have used the CrCo<sub>2</sub>O<sub>4</sub>@Co-MOF electrode for electrochemical analyses of glucose concentration. The electrode demonstrated exceptional sensitivity of 103.94&#xa0;mA/cm<sup>−2</sup>/mM<sup>−1</sup> and outstanding performance in glucose detection. The constructed biosensor exhibited a limit of detection (LOD) of 0.092&#xa0;mM, highlighting its excellent sensitivity for low-level glucose detection. These results demonstrate that the CrCo₂O₄@Co-MOF electrode offers a promising platform for multifunctional applications in both energy storage and sensing.</p>

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Design and characterization of Co-MOF/CrCo₂O₄ nanocomposites on carbon paper electrode for supercapacitors and biosensor applications

  • 期刊论文

  • 发表日期：

    2025年9月1日

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  • Arfan Razzaq,
  • Abhinav Kumar,
  • Amir Muhammad Afzal,
  • Bhavesh Kanabar,
  • Suhas Ballal,
  • Majid Al-sabah,
  • Karthikeyan Jayabalan,
  • Sikata Samantaray,
  • Hanen Karamti,
  • Sumit Kaushal,
  • Ankit D. Oza

摘要

Due to their unique properties, which include their enormous surface areas, flexible pore designs, and pseudocapacitive mechanisms that allow them to store charge, metal–organic frameworks (MOFs) show great promise as advanced electrodes. A straightforward hydrothermal process successfully created a new composite material with a CrCo2O4@Co-MOF. The composite has exhibited exceptional electrochemical characteristics when working as an electrode in supercapacitor devices. An inspiring specific capacity value of 1075.63 C/g is displayed by the CrCo2O4@Co-MOF electrode in a three-cell configuration, showcasing its outstanding capability to store energy. The hybrid supercapacitor (HSC), comprised of CrCo2O4@Co-MOF and activated carbon, shows a significant specific capacity of 291 C/g at a current density of 1.5 A/g. In addition, it demonstrates remarkable cycling performance, maintaining 90% of its capacity after 6,000 cycles. The work showcases the promise of a new hybrid based on structured Co-MOFs electrode materials for supercapacitors with exceptional performance. We have used the CrCo2O4@Co-MOF electrode for electrochemical analyses of glucose concentration. The electrode demonstrated exceptional sensitivity of 103.94 mA/cm−2/mM−1 and outstanding performance in glucose detection. The constructed biosensor exhibited a limit of detection (LOD) of 0.092 mM, highlighting its excellent sensitivity for low-level glucose detection. These results demonstrate that the CrCo₂O₄@Co-MOF electrode offers a promising platform for multifunctional applications in both energy storage and sensing.