Diatomic Fe-Co catalysts synergistically catalyze oxygen evolution reaction
Abstract
The design of diatomic catalysts with uniformly dispersed metal atoms is expected to improve catalytic performance, which is conducive to the intensive comprehending of the synergistic mechanism between dual-metal sites for the oxygen evolution reaction (OER) at the atomic level. Herein, we design a strategy to immobilize bimetallic Fe-Co atoms onto nitrogen-doped graphene to obtain a diatomic catalyst (DA-FC-NG) with FeN 3 -CoN 3 configuration. The DA-FC-NG shows excellent OER activity with a low overpotential ( η 10 = 268 mV), which is superior to commercial iridium dioxide catalysts. Theoretical calculations uncover that the excellent activity of DA-FC-NG is due to the interaction between Fe and Co diatoms, which causes charge rearrangement and induces the adsorption of intermediates on the Fe–O–Co bridge structure, thus improving the catalytic OER performance. This work is of great significance for the design of highly active diatomic catalysts to replace noble metal catalysts for energy-related applications.
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Active particles in transition metal alloys are prone to corrosion or dissolving under chemical attack, rendering them unstable and unsuitable for long-term electrocatalysis.
“Furthermore, the active particles are prone to corrosion or dissolving under chemical attack, rendering them unstable and unsuitable for long-term electrocatalysis.17”
From Iron–Cobalt Nanoparticles Embedded in B,N-Doped Chitosan-Derived Porous Carbon Aerogel for Overall Water Splitting (2024) · cites this paper as [17]
Transition metal alloys suffer from aggregation of metal nanoparticles during relatively high-temperature synthesis because of inadequate active particle−support substrate interactions.
“Chief among these drawbacks is the aggregation of the metal nanoparticles during relatively high-temperature synthesis because of inadequate active particle−support substrate interactions.”
From Iron–Cobalt Nanoparticles Embedded in B,N-Doped Chitosan-Derived Porous Carbon Aerogel for Overall Water Splitting (2024) · cites this paper as [17]
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- Authors
- Tang, T., Han, J., Wang, Z., Niu, X., & Guan, J.
- Affiliations
- Jilin University (CN)
- Corresponding author
- Niu, Xiaodi
- Guan, Jingqi
- Venue
- Nano Research
- Publisher
- Tsinghua University Press
- Published
- 2023-12-02
- Volume
- 17
- Issue
- 5
- Pages
- 3794-3800
- ISSN
- 1998-0000 (ISSN-L)
- 1998-0124
- OpenAlex
- W4389264605
- Cited by
- 76
- References
- 0
- Citations by year
- 2026: 20 · 2025: 29 · 2024: 27
- FWCI
- 3.64
- Type
- journal article
- Language
- en
- Open access
- closed
- Licence
- Locations
- Nano Research (publishedVersion)
- Topics
- Physical Sciences › Energy › Renewable Energy, Sustainability and the Environment › Electrocatalysts for Energy Conversion
- Physical Sciences › Materials Science › Materials Chemistry › Catalytic Processes in Materials Science
- Physical Sciences › Energy › Renewable Energy, Sustainability and the Environment › CO2 Reduction Techniques and Catalysts
- Keywords
- oxygen evolution reaction, Fe-Co bimetallic catalyst, nitrogen-doped graphene, charge transfer, intermediate adsorption, noble-metal-free electrocatalysts, water splitting
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