ArticleNature chemistry2025
Oxidation of interfacial cobalt controls the pH dependence of the oxygen evolution reaction.
Article in Nature chemistry, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.
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Who cites it
20 citing papers in PubMed.
- Ultrasonication-Induced Iridium Single-Atom Decoration on Anodized NiO Nanosponge Electrocatalyst for Enhanced Oxygen Evolution Reaction.Small (Weinheim an der Bergstrasse, Germany) · 2026Article
- Multicomponent Nitride/High-Entropy Alloy Heterostructures as Highly Active and Stable Electrocatalysts for Ampere-Level Water Oxidation.Nano-micro letters · 2026Article
- Ultrastable Non-Noble-Metal Oxygen Evolution Electrocatalyst for Industrial-Level Water Electrolysis.Angewandte Chemie (International ed. in English) · 2026Article
- Dynamic stability of OER electrocatalysts in water electrolyzers: multiscale deactivation mechanisms and regulation strategies.Chemical science · 2026Review
- Ridge catalysis unlocking water oxidation activity of pentlandite.Nature communications · 2026Article
- Light-triggered oxygen redox activity at the edge of cobalt oxyhydroxide for superior water oxidation.Nature communications · 2026Article
- Closed-Loop Synergistic Nitric Oxide/Hydrogen Delivery with Feedback Control for Diabetic Wound Healing.Nano-micro letters · 2026Article
- The Role of Local pH in Electrocatalysis: Measurement, Impact, and Control Strategies.ACS electrochemistry · 2026Review
- Electronic structure manipulation in electrocatalysis: mechanisms and design principles.Chemical science · 2026Review
- Stabilization of Single Metal Atoms on Graphitic Carbon Nitride: Synthetic Strategies and Emerging Applications.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026Review
- Interfacial solvation pre-organizes the transition state of the oxygen evolution reaction.Nature chemistry · 2026Article
- In Situ Elucidations of the Mechanism for Inert Molecular NAdvanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026Article
- Oxygen Evolution Reaction Catalysts for Acidic-Media COAdvanced materials (Deerfield Beach, Fla.) · 2026Review
- Dynamic observation of reductive and oxidative hydroxylation of CoONational science review · 2026Article
- Multimetal Doping and Heterostructure Engineering of RuOSmall science · 2026Article
- Desirable Pore Connectivity Effects in Multiscale Interactive Cobalt Centers with Asymmetric B/N-Coordination Carbon for Promoting Zn-Air Batteries.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2025Article
- Electrochemical Synthesis of High-Valent Metal Oxides via In Situ Oxidant Generation with Real-Time Phase and Composition Control.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2025Article
- Enabling Solar Water Oxidation by BiVOJournal of the American Chemical Society · 2025Article
- Directly synthesized cobalt oxyhydroxide as an oxygen evolution catalyst in proton exchange membrane water electrolyzers.Nature communications · 2025Article
- Enhancing Water Splitting Performance via NiFeP-CoP on Cobalt Foam: Synergistic Effects and Structural Optimization.Nanomaterials (Basel, Switzerland) · 2025Article
Corrections and comments
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Authors and funding
8 authors.
Funding
Abstract
Transition metal oxides often undergo dynamic surface reconstruction under oxygen evolution reaction conditions to form the active state, which differs in response to the electrolyte pH. The resulting pH dependency of catalytic activity is commonly observed but poorly understood. Herein we track Co oxidation state changes at different pH-directed (hydr)oxide/electrolyte interfaces using operando X-ray absorption spectroscopy characterizations. Combined with in situ electrochemical analyses, we establish correlations between Co redox dynamics, the flat band potential and Co oxidation state changes to explain the pH dependency of the oxygen evolution activity. Alkaline environments provide a low flat band potential that yields a low-potential Co redox transformation, which favours surface reconstruction. Neutral and acidic environments afford an anodic shift of the Co redox transformation that increases the catalytic overpotential. The larger overpotential in neutral environments is attributable to poor Co atom polarizability and slow Co oxidation state changes. These findings reveal that interfacial Co oxidation state changes directly determine the pH dependency of the oxygen evolution reaction activity.
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Registered trials
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