High‐Rate Electrosynthesis of Hydrogen Peroxide in Neutral Electrolytes Enabled by Biomass‐Derived Porous Carbon

Cathodic oxygen reduction for the electrosynthesis of hydrogen peroxide (H 2 O 2 ) offers a green and decentralized alternative to the energy‐intensive anthraquinone process. However, its development has been largely confined to alkaline electrolytes, limiting practical application. Designing active and selective catalysts for neutral media is therefore crucial. Herein, we report a facile phosphate‐activation method to convert low‐cost, amino acid‐rich soybeans into N, P, O co‐doped porous carbon (NPODC). Electrochemical tests in 0.1 M K 2 SO 4 reveal that NPODC‐600 exhibits exceptional selectivity for the two‐electron oxygen reduction pathway. Structural analysis, in situ characterization, and theoretical calculations confirm the synergistic role of multi‐heteroatom doping (N, P, O) and defect structures in optimizing intermediate adsorption. In practical applications, NPODC‐600 demonstrated outstanding electro‐synthesis of H 2 O 2 ability, with a production rate reaching 8089 mg L −1 h −1 . Importantly, after continuous operation in a solid‐state electrolytic cell, 7.5 wt% pure H 2 O 2 accumulation was achieved, and rapid synthesis was realized under solar energy drive. This work not only provides a reference for the high‐value utilization of biomass but also fully demonstrates the great potential of the two‐electron oxygen reduction system in clean energy utilization and H 2 O 2 production.