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<p>In this work, TiN–Al<sub>2</sub>O<sub>3</sub> composites were synthesized via a wet-chemical method and investigated as electrode materials for supercapacitor applications. Among the prepared samples, the TiN 40%–Al<sub>2</sub>O<sub>3</sub> (ZR-2) composite exhibited superior crystallinity, making it a promising electrode material. The ZR-2 electrode delivered a high specific capacitance of 848 F g<sup>−1</sup>, along with an energy density (E<sub>d</sub>) of 22.88 Wh kg<sup>−1</sup> and a power density (P<sub>d</sub>) of 800 W kg<sup>−1</sup> at 1 A g<sup>−1</sup>. Moreover, it maintained 96.4% capacitance retention after 10000 charge–discharge cycles, demonstrating excellent stability and durability. These results highlight the potential of TiN–Al<sub>2</sub>O<sub>3</sub> composites, particularly ZR-2, as efficient electrode materials for advanced energy storage devices.</p>

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Synthesis of high-performance supercapacitor electrode materials by wet-chemical route based on TiN–Al2O3 composite

  • 期刊论文

  • 发表日期：

    2025年12月10日

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  • Junaid Riaz,
  • Jianchun Cao,
  • Nadimullah Hakimi,
  • Anila Sikandar,
  • Fawad Aslam,
  • Tabasum Huma,
  • Amina Bibi

摘要

In this work, TiN–Al2O3 composites were synthesized via a wet-chemical method and investigated as electrode materials for supercapacitor applications. Among the prepared samples, the TiN 40%–Al2O3 (ZR-2) composite exhibited superior crystallinity, making it a promising electrode material. The ZR-2 electrode delivered a high specific capacitance of 848 F g−1, along with an energy density (Ed) of 22.88 Wh kg−1 and a power density (Pd) of 800 W kg−1 at 1 A g−1. Moreover, it maintained 96.4% capacitance retention after 10000 charge–discharge cycles, demonstrating excellent stability and durability. These results highlight the potential of TiN–Al2O3 composites, particularly ZR-2, as efficient electrode materials for advanced energy storage devices.