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<p>Transition metal-based tin oxide (SnO<sub>2</sub>), tin sulfide (SnS<sub>2</sub>), and their composite (SnO<sub>2</sub>/SnS<sub>2</sub>) were synthesized using sol–gel, co-precipitation, and simple mechanical alloying methods to enhance their electrochemical performance for supercapacitor applications. The synthesized materials were characterized to determine their surface morphology, crystalline structure, and electrochemical behavior. The observations revealed that the composite exhibited improved electrochemical behavior compared to the individual SnO<sub>2</sub> and SnS<sub>2</sub> materials. The electrochemical properties were assessed using cyclic voltammetry (CV), galvanostatic charge–discharge (GCD), and electrochemical impedance spectroscopy (EIS) techniques. Owing to its exceptional properties, the SnO<sub>2</sub>/SnS<sub>2</sub> composite was selected to construct a hybrid device. The SnO<sub>2</sub>/SnS<sub>2</sub> composite exhibits energy (<i>E</i><sub><i>s</i></sub>) and power density (<i>P</i><sub><i>s</i></sub>) of 46.81 Wh/kg and 1955.33 W/kg, respectively. The specific capacity (Cs) retained 99% of its value after 1500 charge–discharge cycles. These results demonstrate the excellent electrochemical properties of the composite, making it a promising candidate for supercapacitors.</p> Graphical Abstract <p></p>

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Investigation of Integration Effect of Composite of Tin Oxide and Tin Sulphide Nanoparticles for Applications in Hybrid Supercapacitor Devices

  • 期刊论文

  • 发表日期：

    2025年8月8日

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  • Jameel Ahmad,
  • Tayyaba Tur Rehman Afzal,
  • Rajeh Alotaibi,
  • Maham Saeed,
  • Syed Mansoor Ali,
  • Naeem ur Rehman,
  • Shahzad Sharif,
  • Muhammad Imran

摘要

Transition metal-based tin oxide (SnO2), tin sulfide (SnS2), and their composite (SnO2/SnS2) were synthesized using sol–gel, co-precipitation, and simple mechanical alloying methods to enhance their electrochemical performance for supercapacitor applications. The synthesized materials were characterized to determine their surface morphology, crystalline structure, and electrochemical behavior. The observations revealed that the composite exhibited improved electrochemical behavior compared to the individual SnO2 and SnS2 materials. The electrochemical properties were assessed using cyclic voltammetry (CV), galvanostatic charge–discharge (GCD), and electrochemical impedance spectroscopy (EIS) techniques. Owing to its exceptional properties, the SnO2/SnS2 composite was selected to construct a hybrid device. The SnO2/SnS2 composite exhibits energy (Es) and power density (Ps) of 46.81 Wh/kg and 1955.33 W/kg, respectively. The specific capacity (Cs) retained 99% of its value after 1500 charge–discharge cycles. These results demonstrate the excellent electrochemical properties of the composite, making it a promising candidate for supercapacitors.

Graphical Abstract