ArticleScience advances2025
Operando unveiling the activity origin via preferential structural evolution in Ni-Fe (oxy)phosphides for efficient oxygen evolution.
Article in Science advances, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.
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Who cites it
12 citing papers in PubMed.
- Multicomponent Nitride/High-Entropy Alloy Heterostructures as Highly Active and Stable Electrocatalysts for Ampere-Level Water Oxidation.Nano-micro letters · 2026Article
- Subnanometer control and electrochemical mapping of a Pt monolayer catalyst for boosting ethanol oxidation.Science advances · 2026Article
- Local Coordination Motif Compatibility Induces the Formation of Shortened Fe3+-O-Ni3+δ Moieties as Active Sites for Highly Efficient Oxygen Evolution Reaction.Journal of the American Chemical Society · 2026Article
- Asymmetric Ru─O sites in self-activated catalysts for efficient electrochemical methanol oxidation and industrial-scale hydrogen generation.Science advances · 2026Article
- Unlocking the Synergistic Promoter Role of Phosphorus in Evolving NiFe Phosphides for Enhanced Water Oxidation.Nano-micro letters · 2026Article
- Recent Advances in Catalysts for Hydrogen Production: From Fossil-Derived Processes to Sustainable Water Electrolysis and Photocatalysis.ACS omega · 2026Review
- Molecular level combination of coordination and interfacial regulations via functional ligands for industrial AEM water electrolysis.Science advances · 2026Article
- Synergistic Co-Doping of Barium and Cobalt Enables Stable and Active RuOAngewandte Chemie (International ed. in English) · 2026Article
- Hierarchical Embedded Sphere Model: An Interpretable ML-Guided Multiscale Descriptor Engineering Decodes OER Activity on TM@MOAdvanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026Article
- Borate intercalation optimizes the electro-oxidation kinetics of α-Ni(OH)Chemical science · 2026Article
- Lewis acid-triggered hydroxyl spillover enables selective urea electrooxidation to nitrite with concurrent energy-saving hydrogen production.Nature communications · 2026Article
- Discovering high-entropy electrocatalysts through a batch-alloy targeting approach.Science advances · 2025Article
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Authors and funding
8 authors.
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Abstract
Non-noble metal-based heteroatom compounds demonstrate excellent electrocatalytic activity for the oxygen evolution reaction (OER). However, the origin of this activity, driven by structure evolution effects, remains unclear due to the lack of effective in situ/operando techniques. Herein, we employ the operando quick-scan x-ray absorption fine structure (Q-XAFS) technique coupled with in situ controlled electrochemical potential to establish a structure-activity correlation of the OER catalyst. Using Ni-Fe bimetallic phosphides as a model catalyst, operando Q-XAFS experiments reveal that the structural transformation initiates at the preferential oxidation of Fe sites over Ni sites. The in situ-generated O-Fe-P structure serves as the origin of the enhanced electrocatalytic OER activity of the catalyst, a finding supported by theoretical calculations. This work provides crucial insights into understanding the reaction mechanism of the state-of-the-art Ni-Fe-based OER electrocatalysts, thus advancing the rational design of more efficient OER electrocatalysts.
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