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This study investigates the use of carbon (PC) materials derived from biowaste to improve the efficiency of oxygen reduction reactions (ORR) in fuel cell cathodes. This article focuses on the techniques for making nitrogen doped biochar microspheres (BCM) from pomelo peel, and how they outperform organic sources. To improve the efficiency and stability of oxygen reduction reaction (ORR), the research details advancements in nanocomposite catalysts, such as Fe3C/WC/GC supported on graphitic carbon produced from pomelo peel. The performance of PCs in ORR activity, stability, and resistance to methanol compared to Pt/C catalysts is shown by evaluating the influence of nitrogen doping and their hierarchical structure. In this concise review, we have shown how biowaste-derived PCs might be used in fuel cell technology to improve high-performance electrocatalysis and demonstrate the benefits of recycling organic waste into useful energy.

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A Brief Overview of Biowaste-Derived Porous Carbon for Superior ORR Activity in Fuel Cells

  • 会议论文

  • 发表日期：

    2025年

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  • Gangidi Sri Sahasra Reddy,
  • P. V. P. Renu Prakash,
  • Sravya Kolluru,
  • Gaurav Mahnot Jain,
  • Lingala Eswaraditya Reddy,
  • Gubbala V. Ramesh

摘要

This study investigates the use of carbon (PC) materials derived from biowaste to improve the efficiency of oxygen reduction reactions (ORR) in fuel cell cathodes. This article focuses on the techniques for making nitrogen doped biochar microspheres (BCM) from pomelo peel, and how they outperform organic sources. To improve the efficiency and stability of oxygen reduction reaction (ORR), the research details advancements in nanocomposite catalysts, such as Fe3C/WC/GC supported on graphitic carbon produced from pomelo peel. The performance of PCs in ORR activity, stability, and resistance to methanol compared to Pt/C catalysts is shown by evaluating the influence of nitrogen doping and their hierarchical structure. In this concise review, we have shown how biowaste-derived PCs might be used in fuel cell technology to improve high-performance electrocatalysis and demonstrate the benefits of recycling organic waste into useful energy.