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<p>Energy is fundamental requirement of twenty-first century. Moreover, energy storage has become increasingly essential. One of the most efficient among moderns’ storage technologies is supercapacitor. The improvement in nanostructured electrode material of supercapacitor (SCs) is essential. Here, we used a composite approach to enhance the performance of supercapacitors (SCs) electrode via employing graphitic carbon nitride (gCN) sheets and Zn<sub>2</sub>SnO<sub>4</sub>. While g-CN is easily obtainable and economically viable, its conductivity is restricted, whereas Zn<sub>2</sub>SnO<sub>4</sub> has a higher ionic conductivity with minute surface area. This hybrid material was fabricated via simple hydrothermal process. The physical studies proved that hydrothermally synthesized (Zn<sub>2</sub>SnO<sub>4</sub>@gCN) exhibited enhanced surface area&#xa0;and morphology. Furthermore, 3-electrode study is adopted to evaluate electrochemical potential of Zn<sub>2</sub>SnO<sub>4</sub>@gCN composite. The produced Zn<sub>2</sub>SnO<sub>4</sub>@gCN demonstrated better capacitive performance with significant specific capacitance 1280 F/g. Additionally, compared to Zn<sub>2</sub>SnO<sub>4</sub>, the nanocomposite showed low solution resistance (0.80 Ω). Cyclic stability after 4450th cycles&#xa0;was very high. The specific energy&#xa0;of&#xa0;(Zn<sub>2</sub>SnO<sub>4</sub>@gCN) was&#xa0;29.9 Wh/kg and&#xa0;specific power was 205 W/kg. These results showed that Zn<sub>2</sub>SnO<sub>4</sub>@gCN suitable for SCs.</p>

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Enhanced electrochemical performance of hydrothermally fabricated Zn2SnO4@gCN for supercapacitor application

  • 期刊论文

  • 发表日期：

    2026年1月9日

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  • Maria Ismail,
  • Haifa A. Alyousef,
  • Albandari. Alrowaily,
  • B. M. Alotaibi,
  • Hala M. Abo-Dief,
  • Abhinav Kumar,
  • Rizwan Ul Hassan

摘要

Energy is fundamental requirement of twenty-first century. Moreover, energy storage has become increasingly essential. One of the most efficient among moderns’ storage technologies is supercapacitor. The improvement in nanostructured electrode material of supercapacitor (SCs) is essential. Here, we used a composite approach to enhance the performance of supercapacitors (SCs) electrode via employing graphitic carbon nitride (gCN) sheets and Zn2SnO4. While g-CN is easily obtainable and economically viable, its conductivity is restricted, whereas Zn2SnO4 has a higher ionic conductivity with minute surface area. This hybrid material was fabricated via simple hydrothermal process. The physical studies proved that hydrothermally synthesized (Zn2SnO4@gCN) exhibited enhanced surface area and morphology. Furthermore, 3-electrode study is adopted to evaluate electrochemical potential of Zn2SnO4@gCN composite. The produced Zn2SnO4@gCN demonstrated better capacitive performance with significant specific capacitance 1280 F/g. Additionally, compared to Zn2SnO4, the nanocomposite showed low solution resistance (0.80 Ω). Cyclic stability after 4450th cycles was very high. The specific energy of (Zn2SnO4@gCN) was 29.9 Wh/kg and specific power was 205 W/kg. These results showed that Zn2SnO4@gCN suitable for SCs.