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<p>Research on sustainable energy storage and conversion techniques is advancing due to rising energy use. Supercapacitors, high-power-density capacitors, are in high demand due to their quick energy release and absorption capabilities. In this study, NiO/Co<sub>3</sub>O<sub>4</sub>/BaO/Al<sub>2</sub>O<sub>3</sub> (NCBA) and NiO/Co<sub>3</sub>O<sub>4</sub>/BaO/Al<sub>2</sub>O<sub>3</sub>@g-C<sub>3</sub>N<sub>4</sub> (NCBACN) nanocomposites were synthesized, characterized, and their electrochemical performance was checked as a supercapacitor and for photodegradation of dyes. The NCBA and NCBACN nanocomposites were prepared using co-precipitation and ultra-sonication methods. The NCBACN electrode had a higher specific capacitance (2190 F/g) than the NCBA electrode (476 F/g). NCBACN demonstrated superior efficiency in reducing Rhodamine-B and Congo red dyes, with 97% and 94% degradation respectively. The NCBACN electrode material offers superior capacitive performance as a supercapacitor, with EIS and GCD curve results supporting its effectiveness and cost-effectiveness in industrial wastewater dye removal.</p>

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Effect of synthesis methods on quaternary metals-based graphitic carbon nitride nanocomposites for supercapacitor and photocatalytic applications

  • 期刊论文

  • 发表日期：

    2026年4月28日

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  • Ayesha Hareem,
  • Nosheen Farooq,
  • Wardah Iman,
  • Ravia Irshad,
  • Asma Shaheen,
  • Mohammed Mujahid Alam,
  • Adnan Rabnawaz,
  • Mohamed Hussien,
  • Nikita Morozov,
  • Rajesh Kumar Manavalan,
  • Shahid Hussain

摘要

Research on sustainable energy storage and conversion techniques is advancing due to rising energy use. Supercapacitors, high-power-density capacitors, are in high demand due to their quick energy release and absorption capabilities. In this study, NiO/Co3O4/BaO/Al2O3 (NCBA) and NiO/Co3O4/BaO/Al2O3@g-C3N4 (NCBACN) nanocomposites were synthesized, characterized, and their electrochemical performance was checked as a supercapacitor and for photodegradation of dyes. The NCBA and NCBACN nanocomposites were prepared using co-precipitation and ultra-sonication methods. The NCBACN electrode had a higher specific capacitance (2190 F/g) than the NCBA electrode (476 F/g). NCBACN demonstrated superior efficiency in reducing Rhodamine-B and Congo red dyes, with 97% and 94% degradation respectively. The NCBACN electrode material offers superior capacitive performance as a supercapacitor, with EIS and GCD curve results supporting its effectiveness and cost-effectiveness in industrial wastewater dye removal.