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<p>Metal-organic frameworks (MOFs) have recently gained significant research interest in the field of electrocatalysis and storage devices due to their uniform chemical composition, porosity, and active surface sites. This research employed an ultrasonication process to synthesize a series of clamshell-shaped Co/Ru-MOFs with amorphous predominance and utilized them for supercapacitor measurements and oxygen evolution reactions (OER). XRD, FT-IR, Raman, SEM-EDS, TEM, and XPS analyses were employed to evaluate the variations in Ru percentages within Co/Ru-MOFs. The physical and chemical investigation confirmed that the material possesses structural defects resulting from Ru alterations, which are advantageous for both electrochemical applications. The supercapacitor performance was examined using a three-electrode configuration and a coin-cell assembly. Among them, the Co<sub>0.8</sub>-Ru<sub>0.08</sub>-MOF composite exhibits a specific capacitance value at a current density of 1&#xa0;A g<sup>− 1</sup> was 173.4&#xa0;F g<sup>− 1</sup>, and the electrocatalytic OER performance with overpotentials (η) at 50&#xa0;mA cm<sup>− 2</sup> was 290 mV, respectively. Experiments in alkaline conditions demonstrated enhanced electrocatalytic performance with the optimal incorporation of Ru content. This study presents a novel approach to the design of MOF materials for efficient supercapacitors and electrocatalytic water-splitting systems.</p>

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Ultrasound-Induced Growth of Co/Ru Bimetallic Metal Organic Framework Towards Supercapacitors and Water-Splitting Applications

  • 期刊论文

  • 发表日期：

    2025年5月9日

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  • S. Rohith,
  • Sethumathavan Vadivel,
  • P. Sujita,
  • S. Sarmila,
  • Bappi Paul,
  • Nagaraj Murugan,
  • Yoong Ahm Kim

摘要

Metal-organic frameworks (MOFs) have recently gained significant research interest in the field of electrocatalysis and storage devices due to their uniform chemical composition, porosity, and active surface sites. This research employed an ultrasonication process to synthesize a series of clamshell-shaped Co/Ru-MOFs with amorphous predominance and utilized them for supercapacitor measurements and oxygen evolution reactions (OER). XRD, FT-IR, Raman, SEM-EDS, TEM, and XPS analyses were employed to evaluate the variations in Ru percentages within Co/Ru-MOFs. The physical and chemical investigation confirmed that the material possesses structural defects resulting from Ru alterations, which are advantageous for both electrochemical applications. The supercapacitor performance was examined using a three-electrode configuration and a coin-cell assembly. Among them, the Co0.8-Ru0.08-MOF composite exhibits a specific capacitance value at a current density of 1 A g− 1 was 173.4 F g− 1, and the electrocatalytic OER performance with overpotentials (η) at 50 mA cm− 2 was 290 mV, respectively. Experiments in alkaline conditions demonstrated enhanced electrocatalytic performance with the optimal incorporation of Ru content. This study presents a novel approach to the design of MOF materials for efficient supercapacitors and electrocatalytic water-splitting systems.