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<p>Cerium vanadate nanoparticles (CeVO<sub>4</sub> NPs) were synthesized using the simple sol-gel auto-combustion technique. The X-ray diffraction (XRD) pattern of the synthesized CeVO<sub>4</sub> NPs revealed a monoclinic nanostructure. Field-emission scanning electron microscopy (FESEM) was used to examine the nanoparticles’ average size, crystalline structure, and morphology. The elemental content and purity of the generated NPs were examined using energy-dispersive X-ray spectroscopy (EDX). The vibrational properties of the CeVO<sub>4</sub> NPs surface were ascertained using Fourier transform infrared spectroscopy (FT-IR). The absorption spectra of CeVO<sub>4</sub> NPs revealed a band gap of 3.4&#xa0;eV and high absorbance in the visible region. These CeVO<sub>4</sub> NPs also demonstrated supercapacitor characteristics. The highest specific capacitance in a 1&#xa0;M KOH electrolyte was 1281.08&#xa0;F/g at a scan rate of 5 mV/s. Synthesized CeVO<sub>4</sub> supercapacitors exhibit excellent electrochemical performance and very low resistance.</p> Graphical Abstract <p></p>

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Insights into the supercapacitor efficiency of synthesized CeVO4 nanoparticles using a sol-gel approach

  • 期刊论文

  • 发表日期：

    2025年11月24日

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  • Onkar M. Pardeshi,
  • Suresh Ghotekar,
  • Vikas V. Deshmane,
  • Arun V. Patil

摘要

Cerium vanadate nanoparticles (CeVO4 NPs) were synthesized using the simple sol-gel auto-combustion technique. The X-ray diffraction (XRD) pattern of the synthesized CeVO4 NPs revealed a monoclinic nanostructure. Field-emission scanning electron microscopy (FESEM) was used to examine the nanoparticles’ average size, crystalline structure, and morphology. The elemental content and purity of the generated NPs were examined using energy-dispersive X-ray spectroscopy (EDX). The vibrational properties of the CeVO4 NPs surface were ascertained using Fourier transform infrared spectroscopy (FT-IR). The absorption spectra of CeVO4 NPs revealed a band gap of 3.4 eV and high absorbance in the visible region. These CeVO4 NPs also demonstrated supercapacitor characteristics. The highest specific capacitance in a 1 M KOH electrolyte was 1281.08 F/g at a scan rate of 5 mV/s. Synthesized CeVO4 supercapacitors exhibit excellent electrochemical performance and very low resistance.

Graphical Abstract