Tuning α‐MnOOH Formation via Atomic‐Level Fe Introduction for Superior OER Performance

Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown

Published: March 25, 2025

Abstract The arrangement of atoms in the catalyst directly impacts catalytic performance. Herein, a heteroatom doping strategy is found as an effective approach for regulation MnO 2 crystal reconstruction during oxygen evolution reaction (OER), thereby ensuring and optimizing performance catalyst. Real‐time tracking dynamic surface reveals that δ‐MnO transforms into less active γ‐MnOOH phase, while single‐atom Fe facilitates formation highly α‐MnOOH phase. asymmetric Fe─O─Mn bonds induce lattice distortions promote electron transfer from to Mn with increase 3 ⁺ content, which conducive intensifying spillover crucial factor OER activity. Theoretical calculations also demonstrate sites regulated representative can reduce energy barrier step process (the *O *OOH transition), thus significantly enhancing typical achieves successful processes through doping, holds significant implications developing new class catalysts, not limited catalysts reported this study.

Language: Английский

High-dispersion / N-doping FeCo@NC with abundant active sites for high-activity oxygen reduction catalysts

Journal of Alloys and Compounds, Journal Year: 2025, Volume and Issue: 1020, P. 179295 - 179295

Published: Feb. 26, 2025

Language: Английский

Etching and isolation technique for synthesis of CNTs-encapsulated NiSe2/CoSe2 for supercapacitor applications

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: unknown, P. 158572 - 158572

Published: Dec. 1, 2024

Language: Английский