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<p>The electrochemical supercapacitor is a unique class of excellent energy-storing devices that are used in numerous applications because of its great lifetime, superior charging-discharging characteristics, and significant power density. In this effort, the Ba-doped Na<sub>2</sub>ZrO<sub>3</sub> electrode material was produced for supercapacitor applications. The Ba-doped Na<sub>2</sub>ZrO<sub>3</sub> electrode material demonstrated high specific capacitance (1171&#xa0;F/g) over 1&#xa0;A/g, 23.7 Wh/kg of energy density, and 190.8&#xa0;W/kg of power density and excellent stability over 5000th cyclic voltametric studies within 3.0&#xa0;M KOH. The undoped and Ba-doped Na<sub>2</sub>ZrO<sub>3</sub> nanomaterials have R<sub>ct</sub> values of 1.28 Ω and 0.03 Ω, respectively, whereas pure and doped materials have R<sub>s</sub> values of 1.10 Ω and 1.04 Ω. The increased surface area of doped material (67 m<sup>2</sup>/g) than pure Na<sub>2</sub>ZrO<sub>3</sub> (31 m<sup>2</sup>/g), extensive active regions, and less resistivity are responsible for the better electrochemical performance. The research highlights the applications of Ba-doped Na<sub>2</sub>ZrO<sub>3</sub> material fabricated by hydrothermal method, especially in supercapacitors as well as other energy storage technology.</p>

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Impact of Ba Doping on Improving the Electrochemical Properties of Na2ZrO3 Electrode for Supercapacitor Applications

  • 期刊论文

  • 发表日期：

    2025年4月18日

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  • Haifa A. Alyousef,
  • Shaimaa A. M. Abdelmohsen,
  • Areej Saleh Alqarny,
  • Najla Alotaibi,
  • Younis Ejaz,
  • Muhammad Imran,
  • Hafiz Muhammad Farid

摘要

The electrochemical supercapacitor is a unique class of excellent energy-storing devices that are used in numerous applications because of its great lifetime, superior charging-discharging characteristics, and significant power density. In this effort, the Ba-doped Na2ZrO3 electrode material was produced for supercapacitor applications. The Ba-doped Na2ZrO3 electrode material demonstrated high specific capacitance (1171 F/g) over 1 A/g, 23.7 Wh/kg of energy density, and 190.8 W/kg of power density and excellent stability over 5000th cyclic voltametric studies within 3.0 M KOH. The undoped and Ba-doped Na2ZrO3 nanomaterials have Rct values of 1.28 Ω and 0.03 Ω, respectively, whereas pure and doped materials have Rs values of 1.10 Ω and 1.04 Ω. The increased surface area of doped material (67 m2/g) than pure Na2ZrO3 (31 m2/g), extensive active regions, and less resistivity are responsible for the better electrochemical performance. The research highlights the applications of Ba-doped Na2ZrO3 material fabricated by hydrothermal method, especially in supercapacitors as well as other energy storage technology.