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<p>The increasing need for sustainable energy solutions has prompted rigorous research into new materials with enhanced electrochemical characteristics. In this work, the chromium-molybdenum sulfide (CrMoS) and nickel cobalt metal-organic framework (NiCo-MOF) are synthesized using a hydrothermal technique. To enhance the electrochemical and observe the synergistic effect, the binary metallic sulfide (CrMoS) is combined with the NiCo-MOF. Besides, the activated carbon is synthesized from the date seed using the green synthesis method. By employing a three-electrode assembly, the CrMoS@NiCo-MOF nanomaterial electrode established a specific capacity (Q<sub>s</sub>) of 1297&#xa0;C/g. An asymmetric device (CrMoS@NiCo-MOF//AC) is designed that showed a Q<sub>s</sub> of 274&#xa0;C/g and an incredible energy density (E<sub>d</sub>) of 60.8 Wh/kg at a power density (P<sub>d</sub>) 1280&#xa0;W/kg. The CrMoS@NiCo-MOF//AC demonstrated remarkable prolonged cyclic stability, holding 95% of its initial specific capacitance over 8000 cycles. Meanwhile, the hybrid device showed a coulombic efficiency of 93% after 8000 cycles with remarkable stability. The CrMoS@NiCo-MOF composite demonstrates promising catalytic performance for the HER, achieving a low Overpotential of 29 mV. The nanocomposite electrode also exhibited a Tafel slope of 31 mV/dec, underscoring its highly efficient reaction kinetics. Implementing nickel cobalt metal-organic framework and CrMoS electrodes, this research aims to develop a simple and efficient process for producing high-performance energy storage devices.</p>

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Interface Engineering of CrMoS@NiCo-MOF Nanocomposite and Sustainable Green Activated Carbon for Energy Storage and Hydrogen Production

  • 期刊论文

  • 发表日期：

    2025年5月10日

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  • Areej S. Alqarni,
  • Munazza Arshad,
  • Abhinav Kumar,
  • A. M. Afzal,
  • Suhas Ballal,
  • Kattela Chennakesavulu,
  • M. A. Diab,
  • Heba A. El-Sabban

摘要

The increasing need for sustainable energy solutions has prompted rigorous research into new materials with enhanced electrochemical characteristics. In this work, the chromium-molybdenum sulfide (CrMoS) and nickel cobalt metal-organic framework (NiCo-MOF) are synthesized using a hydrothermal technique. To enhance the electrochemical and observe the synergistic effect, the binary metallic sulfide (CrMoS) is combined with the NiCo-MOF. Besides, the activated carbon is synthesized from the date seed using the green synthesis method. By employing a three-electrode assembly, the CrMoS@NiCo-MOF nanomaterial electrode established a specific capacity (Qs) of 1297 C/g. An asymmetric device (CrMoS@NiCo-MOF//AC) is designed that showed a Qs of 274 C/g and an incredible energy density (Ed) of 60.8 Wh/kg at a power density (Pd) 1280 W/kg. The CrMoS@NiCo-MOF//AC demonstrated remarkable prolonged cyclic stability, holding 95% of its initial specific capacitance over 8000 cycles. Meanwhile, the hybrid device showed a coulombic efficiency of 93% after 8000 cycles with remarkable stability. The CrMoS@NiCo-MOF composite demonstrates promising catalytic performance for the HER, achieving a low Overpotential of 29 mV. The nanocomposite electrode also exhibited a Tafel slope of 31 mV/dec, underscoring its highly efficient reaction kinetics. Implementing nickel cobalt metal-organic framework and CrMoS electrodes, this research aims to develop a simple and efficient process for producing high-performance energy storage devices.