biostudies-literatureFeng JAustralian Research Council Discovery ProgramState Key Laboratory of Materials- Oriented Chemical EngineeringNatural Science Foundation of the Jiangsu Higher Education Institutions of ChinaAustralian Research Councile16471https://www.ebi.ac.uk/biostudies/studies/S-EPMC12767047biostudies-literatureUnknown13(1)Solvated electrons (SEs), known for their strong reductive capability, are widely utilized in diverse catalytic reactions. However, their application in photocatalytic oxygen reduction reactions (ORR) for hydrogen peroxide (H<sub>2</sub>O<sub>2</sub>) production remains largely unexplored. In this work, a Na-metalated, N-rich poly(heptazine imide)-type carbon nitride (PH-C<sub>3</sub>N<sub>5</sub>-Na), synthesized via a NaCl/LiCl molten salt-assisted method is reported, as a novel photocatalyst for in situ SE-driven H<sub>2</sub>O<sub>2</sub> production. The N-rich units and Na into Polymetric carbon nitride (PCN) synergistically narrows the bandgap and facilitates rapid electron transfer, thereby enhancing visible-light absorption and promoting efficient charge separation. Notably, Na metAdvanced science (Weinheim, Baden-Wurttemberg, Germany)Solvated Electron-Driven Stepwise ORR on Na-Metalated N-Rich Carbon Nitride for Efficient Photocatalytic H<sub>2</sub>O<sub>2</sub> Production.PMC1276704721KJA610003SKL-MCE-23B12FT210100804SKL‐MCE‐23B12DP220103416Shangguan LFeng JGuo YZhang HSun SLei WQin WSun JfalseSolvated Electron-Driven Stepwise ORR on Na-Metalated N-Rich Carbon Nitride for Efficient Photocatalytic H<sub>2</sub>O<sub>2</sub> Production.Solvated electrons (SEs), known for their strong reductive capability, are widely utilized in diverse catalytic reactions. However, their application in photocatalytic oxygen reduction reactions (ORR) for hydrogen peroxide (H<sub>2</sub>O<sub>2</sub>) production remains largely unexplored. In this work, a Na-metalated, N-rich poly(heptazine imide)-type carbon nitride (PH-C<sub>3</sub>N<sub>5</sub>-Na), synthesized via a NaCl/LiCl molten salt-assisted method is reported, as a novel photocatalyst for in situ SE-driven H<sub>2</sub>O<sub>2</sub> production. The N-rich units and Na into Polymetric carbon nitride (PCN) synergistically narrows the bandgap and facilitates rapid electron transfer, thereby enhancing visible-light absorption and promoting efficient charge separation. Notably, Na met2026-01-01T00:00:00Z2026 Jan2026-06-06T11:03:04.366Z2026-05-29T03:12:22.973ZS-EPMC127670474111145510.1002/advs.202516471