Increasing nitrogen source by chitosan coupled with nZVI-jelly fig peel biochar to improve O reduction to HO and its electrochemical performance.

The electrocatalytic process of two-electron oxygen reduction reaction (ORR) presents a promising strategy for synthesizing H₂O₂. Nitrogen-doped carbon materials have attracted considerable interest in their performance as highly active and selective electrocatalysts in this reaction. This study was conducted to produce biochar from the high‑nitrogen content of jelly fig (Ficus pumila var.