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<p>The advancement of various renewable energy conversion technologies encourages investment in high-efficiency energy storage systems. The transition metal oxides are extensively employed as electrodes for supercapacitor applications; however, certain limitations persist, including small surface area and poor conductivity, among others. However, doping is regarded as an effective method to address the limitations of transition metal oxides. The present investigation employed a hydrothermal synthesis route to enhance the capacitive properties of Co<sub>3</sub>O<sub>4</sub> by doping with different amounts of neodymium ion (Nd<sup>3+</sup>). The different techniques were employed to investigate the physiochemical structure of the fabricated materials.&#xa0;Moreover, galvanostatic charge–discharge (GCD) analysis at 1 A/g, revealed that Co<sub>3</sub>O<sub>4</sub> nanoparticles doped with Nd<sup>3+</sup> at a concentration of 5.0 mol% exhibited remarkable retention capacitance of (95.45%) and specific capacitance (<i>C</i><sub>s</sub>) (1398 F/g). According to the results of the EIS test, the material exhibited outstanding electrical conductivity. The greater surface area responsible for providing the shorter diffusion path length to improve the capacitive properties. Moreover, findings derived from these experiments specify that the utilization of Nd doped Co<sub>3</sub>O<sub>4</sub> exhibits significant promise in the realm of energy storage application.</p>

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Hydrothermally synthesized neodymium-doped Co3O4 nanostructures as electrode for supercapacitor applications

  • 期刊论文

  • 发表日期：

    2025年2月2日

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  • Albandari W. Alrowaily,
  • Muhammad Abdullah,
  • B. M. Alotaibi,
  • Haifa A. Alyousef,
  • Mohammed F. Alotiby,
  • Salma Aman,
  • Abdullah G. Al-Sehemi,
  • A. M. A. Henaish

摘要

The advancement of various renewable energy conversion technologies encourages investment in high-efficiency energy storage systems. The transition metal oxides are extensively employed as electrodes for supercapacitor applications; however, certain limitations persist, including small surface area and poor conductivity, among others. However, doping is regarded as an effective method to address the limitations of transition metal oxides. The present investigation employed a hydrothermal synthesis route to enhance the capacitive properties of Co3O4 by doping with different amounts of neodymium ion (Nd3+). The different techniques were employed to investigate the physiochemical structure of the fabricated materials. Moreover, galvanostatic charge–discharge (GCD) analysis at 1 A/g, revealed that Co3O4 nanoparticles doped with Nd3+ at a concentration of 5.0 mol% exhibited remarkable retention capacitance of (95.45%) and specific capacitance (Cs) (1398 F/g). According to the results of the EIS test, the material exhibited outstanding electrical conductivity. The greater surface area responsible for providing the shorter diffusion path length to improve the capacitive properties. Moreover, findings derived from these experiments specify that the utilization of Nd doped Co3O4 exhibits significant promise in the realm of energy storage application.