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<p>Chromium (III) terephthalate MIL-101(Cr) was synthesized via a hydrothermal method. Nano ferrite Zn<sub>0.5</sub>Co<sub>0.5</sub>Mn<sub>0.5</sub>Fe<sub>0.5</sub>Cr<sub>1.0</sub>O<sub>4</sub> (ZCMFC) was prepared using a sol–gel auto-combustion method. Subsequently, the MIL-101(Cr)@ZCMFC nanocomposite was fabricated through a hydrothermal route. The structural and morphological properties of the materials were characterized using X- ray diffraction (XRD), Fourier Transform Infrared (FTIR), Field Emission Scanning Electron Microscopy (FESEM), High Resolution Transmission Electron Microscopy (HRTEM), and X-ray Photoelectron Spectroscopy (XPS) techniques. Electrochemical performance was evaluated through cyclic voltammetry (CV), galvanostatic charge–discharge (GCD), and electrochemical impedance spectroscopy (EIS). The MIL-101(Cr)@ZCMFC nanocomposite exhibited a significantly higher specific capacitance of 598.01&#xa0;F g⁻¹ at 100 mV s⁻¹, compared to 509.21&#xa0;F g<sup>− 1</sup> for MIL-101(Cr) and 452.12&#xa0;F g<sup>− 1</sup> for ZCMFC. Energy density (25.16 Wh kg⁻¹) and power density (180&#xa0;W kg⁻¹) values also surpassed those of the individual components. Photoelectrochemical (PEC) measurements showed enhanced performance for the nanocomposite, with a fill factor of 0.449 and efficiency of 0.34%, higher than those of bare MIL-101(Cr) and ZCMFC. These results demonstrate that the MIL-101(Cr)@ZCMFC nano composite is a highly promising material for advanced supercapacitor and PEC applications, combining excellent energy storage capability with efficient photoelectrochemical conversion.</p>

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Tailored MIL-101(Cr)@ZCMFC composite: a next-generation material for energy storage and photoelectrochemical applications

  • 期刊论文

  • 发表日期：

    2025年11月21日

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  • Jenis Tripathi,
  • Vaibhav Salve,
  • Zarrina Ansari,
  • Sunil Patange,
  • Pramod Thakur,
  • Vijaykumar Chavan,
  • Sagar Balgude,
  • Chitralekha Kotian,
  • Paresh More

摘要

Chromium (III) terephthalate MIL-101(Cr) was synthesized via a hydrothermal method. Nano ferrite Zn0.5Co0.5Mn0.5Fe0.5Cr1.0O4 (ZCMFC) was prepared using a sol–gel auto-combustion method. Subsequently, the MIL-101(Cr)@ZCMFC nanocomposite was fabricated through a hydrothermal route. The structural and morphological properties of the materials were characterized using X- ray diffraction (XRD), Fourier Transform Infrared (FTIR), Field Emission Scanning Electron Microscopy (FESEM), High Resolution Transmission Electron Microscopy (HRTEM), and X-ray Photoelectron Spectroscopy (XPS) techniques. Electrochemical performance was evaluated through cyclic voltammetry (CV), galvanostatic charge–discharge (GCD), and electrochemical impedance spectroscopy (EIS). The MIL-101(Cr)@ZCMFC nanocomposite exhibited a significantly higher specific capacitance of 598.01 F g⁻¹ at 100 mV s⁻¹, compared to 509.21 F g− 1 for MIL-101(Cr) and 452.12 F g− 1 for ZCMFC. Energy density (25.16 Wh kg⁻¹) and power density (180 W kg⁻¹) values also surpassed those of the individual components. Photoelectrochemical (PEC) measurements showed enhanced performance for the nanocomposite, with a fill factor of 0.449 and efficiency of 0.34%, higher than those of bare MIL-101(Cr) and ZCMFC. These results demonstrate that the MIL-101(Cr)@ZCMFC nano composite is a highly promising material for advanced supercapacitor and PEC applications, combining excellent energy storage capability with efficient photoelectrochemical conversion.