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<p>The worldwide growing demand for energy and the depletion of conventional fossil fuel resources have intensified the search for sustainable and high-efficiency energy storage systems. Supercapacitors have gained significant attention because of their high-power density, fast charging and discharging capabilities, and long-life span. This study focuses on developing and analyzing vertically aligned Ni-In<sub>2</sub>O<sub>3</sub> nanoflakes for high-performance supercapacitors. The nanostructured electrode material was fabricated via a facile single-step hydrothermal process and systematically analyzed using various techniques. The Ni-In<sub>2</sub>O<sub>3</sub> nanoflakes electrode exhibited specific capacitance of 860 F g<sup>−1</sup> at current density of 1 A g<sup>−1</sup>, along with excellent rate performance, and low internal resistance. The Ni-In<sub>2</sub>O<sub>3</sub> electrode exhibited a cyclic stability of 71.9% and maintaining Coulombic efficiency of 99% after 3,000 charge–discharge cycles. These results suggest that Ni-In<sub>2</sub>O<sub>3</sub> nanoflakes could be highly effective electrode materials for next-generation sustainable energy storage systems.</p>

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Facile synthesis of vertically aligned Ni-In2O3 nanoflakes for supercapacitors

  • 期刊论文

  • 发表日期：

    2025年8月14日

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  • Waqas Ul Arifeen,
  • Ali Riza,
  • Humaira Rashid Khan,
  • P. Rosaiah,
  • Abdullah K. Alanazi,
  • Iftikhar Hussain,
  • Saood Ali,
  • Tae Jo Ko

摘要

The worldwide growing demand for energy and the depletion of conventional fossil fuel resources have intensified the search for sustainable and high-efficiency energy storage systems. Supercapacitors have gained significant attention because of their high-power density, fast charging and discharging capabilities, and long-life span. This study focuses on developing and analyzing vertically aligned Ni-In2O3 nanoflakes for high-performance supercapacitors. The nanostructured electrode material was fabricated via a facile single-step hydrothermal process and systematically analyzed using various techniques. The Ni-In2O3 nanoflakes electrode exhibited specific capacitance of 860 F g−1 at current density of 1 A g−1, along with excellent rate performance, and low internal resistance. The Ni-In2O3 electrode exhibited a cyclic stability of 71.9% and maintaining Coulombic efficiency of 99% after 3,000 charge–discharge cycles. These results suggest that Ni-In2O3 nanoflakes could be highly effective electrode materials for next-generation sustainable energy storage systems.