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<p>This study presents the electrochemical performance of layered double hydroxides (LDHs) as electrode materials for supercapacitor application. The growing demand for the fast and environment friendly energy storage devices has driven much research on supercapacitor electrode materials. LDHs have drawn extensive attention due to their unique structure, large surface area, and excellent redox capacity. In this work, the CuAlBi LDH@Co<sub>3</sub>O<sub>4</sub> was investigated as a promising electrode material for high-performance supercapacitors. The electrode material CuAlBi LDH@Co<sub>3</sub>O<sub>4</sub> was synthesized by the coprecipitation and the characterization was done by the SEM-EDX, UV-visible spectroscopy, Fourier transform infrared (FTIR) and X-ray diffraction (XRD). The electrochemical analysis in a three-electrode system was performed using galvanostatic charge-discharge (GCD), cyclic voltammetry (CV), and impedance spectroscopy (EIS). At 1&#xa0;A/g, the CuAlBi LDH@Co<sub>3</sub>O<sub>4</sub> composite exhibited excellent electrochemical performance with a specific capacitance of 887.8&#xa0;F/g. This significantly surpassed the 489.23&#xa0;F/g for pure CuAlBi LDH. Over 7000 cycles, the composite’s 90.14% capacitance showed remarkable rate performance and long-term cycling stability. Due to the combined effect of CuAlBi LDH and Co<sub>3</sub>O<sub>4</sub>, charge transfer properties, and advantageous structural factors indicated by electrochemical measurements, CuAlBi LDH@Co<sub>3</sub>O<sub>4</sub> could be an especially interesting contender for next-generation supercapacitors.</p>

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Nanoarchitectonics with improved electrochemical performance of CuAlBi layered double hydroxides @Co3O4 for supercapacitor applications

  • 期刊论文

  • 发表日期：

    2026年7月1日

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  • Nishat Fatima,
  • Saima Anjum,
  • Muhammad Imran Khan,
  • Komal Ali Rao,
  • Muhammad Ali Khan,
  • Fawad Ahmad,
  • Mudassar Maraj

摘要

This study presents the electrochemical performance of layered double hydroxides (LDHs) as electrode materials for supercapacitor application. The growing demand for the fast and environment friendly energy storage devices has driven much research on supercapacitor electrode materials. LDHs have drawn extensive attention due to their unique structure, large surface area, and excellent redox capacity. In this work, the CuAlBi LDH@Co3O4 was investigated as a promising electrode material for high-performance supercapacitors. The electrode material CuAlBi LDH@Co3O4 was synthesized by the coprecipitation and the characterization was done by the SEM-EDX, UV-visible spectroscopy, Fourier transform infrared (FTIR) and X-ray diffraction (XRD). The electrochemical analysis in a three-electrode system was performed using galvanostatic charge-discharge (GCD), cyclic voltammetry (CV), and impedance spectroscopy (EIS). At 1 A/g, the CuAlBi LDH@Co3O4 composite exhibited excellent electrochemical performance with a specific capacitance of 887.8 F/g. This significantly surpassed the 489.23 F/g for pure CuAlBi LDH. Over 7000 cycles, the composite’s 90.14% capacitance showed remarkable rate performance and long-term cycling stability. Due to the combined effect of CuAlBi LDH and Co3O4, charge transfer properties, and advantageous structural factors indicated by electrochemical measurements, CuAlBi LDH@Co3O4 could be an especially interesting contender for next-generation supercapacitors.