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<p>Metal-Organic Frameworks (MOFs) is one of the promising candidates in recent days for supercapacitor electrodes due to their unique porous structures and high specific surface areas. In this study, we synthesized Nickel-based MOF (Ni-MOF) through a hydrothermal method to evaluate its effectiveness as a supercapacitor electrode material. Scanning Electron Microscopy (SEM) investigate the morphological behavior of Ni-MOF, while Energy Dispersive Spectroscopy (EDS) confirmed the presence of nickel, carbon, and oxygen elements. Brunauer-Emmett-Teller (BET) confirms the pore size around 1.9&#xa0;nm for the Ni-MOF. Electrochemical performance assessments revealed a specific capacitance of 461&#xa0;F/g (maximum) at a scan rate of 5 mV/s collected from Cyclic Voltammetry (CV) measurements, and specific capacitance (peak) of 459&#xa0;F/g at a current density of 1&#xa0;A/g based on the Galvanostatic Charge-Discharge (GCD) tests. The fabricated Ni-MOF has a maximum power density of 551.37&#xa0;W/kg and energy density of up to 63.75 Wh/kg. Ni-MOF exhibited good stability up to 3000 cycles with the retention value of 80%. These results assessed the potential of hydrothermally synthesized Ni-MOF as an effective electrode material.</p> Graphical Abstract <p></p>

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Enhancing Supercapacitor Efficiency Through Hydrothermally Synthesized Ni-Metal Organic Frameworks

  • 期刊论文

  • 发表日期：

    2025年3月1日

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  • P. Alwin Sinthiya,
  • I. Johnson,
  • H. Joy Prabu,
  • A. Felix Sahayaraj,
  • A. Joseph Sagaya Kennedy,
  • J. Salamon

摘要

Metal-Organic Frameworks (MOFs) is one of the promising candidates in recent days for supercapacitor electrodes due to their unique porous structures and high specific surface areas. In this study, we synthesized Nickel-based MOF (Ni-MOF) through a hydrothermal method to evaluate its effectiveness as a supercapacitor electrode material. Scanning Electron Microscopy (SEM) investigate the morphological behavior of Ni-MOF, while Energy Dispersive Spectroscopy (EDS) confirmed the presence of nickel, carbon, and oxygen elements. Brunauer-Emmett-Teller (BET) confirms the pore size around 1.9 nm for the Ni-MOF. Electrochemical performance assessments revealed a specific capacitance of 461 F/g (maximum) at a scan rate of 5 mV/s collected from Cyclic Voltammetry (CV) measurements, and specific capacitance (peak) of 459 F/g at a current density of 1 A/g based on the Galvanostatic Charge-Discharge (GCD) tests. The fabricated Ni-MOF has a maximum power density of 551.37 W/kg and energy density of up to 63.75 Wh/kg. Ni-MOF exhibited good stability up to 3000 cycles with the retention value of 80%. These results assessed the potential of hydrothermally synthesized Ni-MOF as an effective electrode material.

Graphical Abstract