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<p>Metal-oxide nanocomposites have emerged as a versatile class of materials whose combined physicochemical characteristics are superior to those limitations of individual metal oxides. These hybrid materials demonstrate increased surface activity, synergistic electrical interactions, and improved structural stability properties which are crucial for next-generation energy, environmental, and sensing technologies by combining two or more nanoscale oxides into a nanocomposite. In this work, a nanocomposite SnO<sub>2</sub>/NiO was synthesized through co-precipitation method to achieve uniform particle dispersion and intimate interfacial contact between the constituent oxides. The successful creation of nanoscale domains with average crystallite sizes of 13.9&#xa0;nm is confirmed by thorough structural analysis. The functional groups are identified using FTIR. Its morphology was described using SEM and HRTEM, and the elemental investigations was done using Energy Dispersive X-rays (EDAX) and XPS. The synthesized SnO<sub>2</sub>/NiO nanocomposite exhibited higher specific capacitance of 550 Fg<sup>−1</sup> at 1 Ag<sup>−1</sup>. The material showed 90.25% capacitance retention after 5000 cycles. These results highlight SnO<sub>2</sub>/NiO nanocomposite promise as high-performance materials for an array of technological applications.</p>

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Synergic effect of SnO2/NiO nanocomposite on charge storage mechanism and improved electrochemical kinetics

  • 期刊论文

  • 发表日期：

    2026年5月13日

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  • Jerom R Vincily,
  • S. Jeslin Sunitha Bai,
  • S. Sindhusha

摘要

Metal-oxide nanocomposites have emerged as a versatile class of materials whose combined physicochemical characteristics are superior to those limitations of individual metal oxides. These hybrid materials demonstrate increased surface activity, synergistic electrical interactions, and improved structural stability properties which are crucial for next-generation energy, environmental, and sensing technologies by combining two or more nanoscale oxides into a nanocomposite. In this work, a nanocomposite SnO2/NiO was synthesized through co-precipitation method to achieve uniform particle dispersion and intimate interfacial contact between the constituent oxides. The successful creation of nanoscale domains with average crystallite sizes of 13.9 nm is confirmed by thorough structural analysis. The functional groups are identified using FTIR. Its morphology was described using SEM and HRTEM, and the elemental investigations was done using Energy Dispersive X-rays (EDAX) and XPS. The synthesized SnO2/NiO nanocomposite exhibited higher specific capacitance of 550 Fg−1 at 1 Ag−1. The material showed 90.25% capacitance retention after 5000 cycles. These results highlight SnO2/NiO nanocomposite promise as high-performance materials for an array of technological applications.