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September 10, 2025Journal of the American Chemical Society

Oxophilic Sites Mediated Dynamic Oxygen Replenishment to Stabilize Lattice Oxygen Catalysis in Acidic Water Oxidation

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The proposed mechanism shows effective stabilization of lattice oxygen during water oxidation, boosting catalyst performance.
With a low overpotential of 289 mV, the optimized catalyst maintained stable performance for 280 hours at 1 A cm-2 in a proton exchange membrane water electrolysis.
Dynamic oxygen replenishment via oxophilic sites lowers energy barriers, enhancing catalyst durability and promoting efficient water dissociation.
This framework informs the design of robust, noble-metal-free electrocatalysts essential for economic water electrolysis.

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Implication

Mechanistic framework reveals oxophilic sites enhance oxygen evolution reaction in acidic media, suggesting new strategies for durable electrocatalysts.

Cite This Study

Li et al. (2025) studied this question.

synapsesocial.com/papers/68c198b59b7b07f3a061a07f https://doi.org/10.1021/jacs.5c09939

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Implication

Mechanistic framework reveals oxophilic sites enhance oxygen evolution reaction in acidic media, suggesting new strategies for durable electrocatalysts.

Oxophilic Sites Mediated Dynamic Oxygen Replenishment to Stabilize Lattice Oxygen Catalysis in Acidic Water Oxidation

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Discussion

Implication

Cite This Study

Oxophilic Sites Mediated Dynamic Oxygen Replenishment to Stabilize Lattice Oxygen Catalysis in Acidic Water Oxidation

Key Points

Discussion

Implication

Cite This Study

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