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This research aims to enhance water oxidation efficiency by doping ruthenium oxides with indium, targeting improved anodic electrocatalysts.

Doping RutheniumOxides with P-Block MetalsEnables Water Oxidation via O–O Coupling Reactions

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This research aims to enhance water oxidation efficiency by doping ruthenium oxides with indium, targeting improved anodic electrocatalysts.
Indium-doped RuO2 catalysts were created to study their performance in the oxygen evolution reaction (OER).
Electrochemical tests were conducted at varying pH levels to assess activity and stability.
In situ experiments and theoretical calculations were employed to evaluate reaction pathways.
The In-RuO2 catalyst showed low overpotentials of 227 mV for OER and 33 mV for HER at 10 mA cm–2.
It maintained operation for 90 hours during OER in acidic medium without significant dissolution of Ru.
In-Ru binuclear sites were identified as enhancing the oxide pathway mechanism during OER.

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Randomized trial demonstrates improved oxygen evolution in bimetallic catalysts, suggesting enhanced efficiency.

Han et al. (2026) studied this question.

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