Dual Doping of N and F on Co3O4 to Activate the Lattice Oxygen for Efficient and Robust Oxygen Evolution Reaction

Dual Doping of N and F on Co3O4 to Activate the Lattice Oxygen for Efficient and Robust Oxygen Evolution Reaction

© 2025 Wiley‐VCH GmbH.

Bibliographische Detailangaben
Veröffentlicht in:Advanced materials (Deerfield Beach, Fla.). - 1998. - (2025) vom: 17. Apr., Seite e2501381
1. Verfasser: Li, Chen (VerfasserIn)
Weitere Verfasser: Ye, Beirong, Ouyang, Bo, Zhang, Tengfei, Tang, Tao, Qiu, Zhong, Li, Sipu, Li, Yongqi, Chen, Renhong, Wen, Wei, Song, Ming, Mei, Bingbao, Xia, Xinhui, Zhang, Yongqi
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2025
Zugriff auf das übergeordnete Werk:Advanced materials (Deerfield Beach, Fla.)
Schlagworte:Journal Article co‐doping lattice oxygen mechanism oxygen evolution reaction spinel oxide water splitting
Beschreibung
Zusammenfassung:© 2025 Wiley‐VCH GmbH.
The oxygen evolution reaction (OER) is a pivotal process in numerous renewable energy conversion technologies. However, its sluggish intrinsic kinetics and intricate transfer process impede the efficient conversion of energy. Activating the lattice oxygen mechanism (LOM) is of paramount importance to break through the theoretical scaling relationship and boost the oxygen evolution catalytic activity. In this contribution, N and F are successfully introduced into Co3O4 simultaneously as heteroatoms via a controllable plasma strategy to modulate the covalency property of metal-oxygen. Theoretical simulations and experiment results demonstrated that the covalency of the cobalt-oxygen bond is significantly enhanced under the synergistic effect of N and F, successfully triggering the LOM pathway and facilitating the OER process. The N, F-Co3O4 composite displays an impressive OER performance, exhibiting a low overpotential of 254 mV at 10 mA cm-2 and remarkable stability at 20, 150, and 400 mA cm-2. In addition, The N, F-Co3O4 also exhibits a low overpotential of 285 mV at 20 mA cm-2 in 1 m KOH + 0.5 m NaCl solution, and remarkable performance on overall water splitting. This work offers profound insights into the OER mechanism and a crucial strategy for enhancing the electrocatalytic activity of spinel oxides
Beschreibung:Date Revised 17.04.2025
published: Print-Electronic
Citation Status Publisher
ISSN:1521-4095
DOI:10.1002/adma.202501381