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This research aims to address the limitations of costly Ir-based catalysts and stability issues with Ru-based alternatives in water oxidation.

August 12, 2026Small

Ultralow‐Iridium‐Stabilized Ruthenium‐Based Alloy/Oxide Catalysts for Durable Acidic Water Oxidation

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Randomized trial demonstrates enhanced oxygen evolution efficiency in water electrolysis, implying cost-effective hydrogen production.

This research aims to address the limitations of costly Ir-based catalysts and stability issues with Ru-based alternatives in water oxidation.
Synthesis of Ir and Mn co-doped Ru/RuO₂ heterostructure using a metal-organic framework sacrificial template strategy.
Utilization of in situ differential electrochemical mass spectroscopy and infrared spectroscopy to study catalytic performance.
Integration of the catalyst into a proton exchange membrane water electrolyzer (PEMWE) device for performance evaluation.
The IM-Ru/RuO₂ catalyst shows an overpotential of 182 mV at 10 mA cm⁻² and maintains stability for over 600 hours.
The catalyst achieved a hydrogen production cost of US$0.88 kg⁻¹, surpassing U.S. DOE 2031 targets.
The OER primarily occurs through an enhanced adsorbate evolution mechanism rather than the detrimental lattice oxygen mechanism.

Wu et al. (2026) studied this question.

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August 12, 2026Small

View Full Paper

Ask AI

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Authors

Randomized trial demonstrates enhanced oxygen evolution efficiency in water electrolysis, implying cost-effective hydrogen production.

This research aims to address the limitations of costly Ir-based catalysts and stability issues with Ru-based alternatives in water oxidation.
Synthesis of Ir and Mn co-doped Ru/RuO₂ heterostructure using a metal-organic framework sacrificial template strategy.
Utilization of in situ differential electrochemical mass spectroscopy and infrared spectroscopy to study catalytic performance.
Integration of the catalyst into a proton exchange membrane water electrolyzer (PEMWE) device for performance evaluation.
The IM-Ru/RuO₂ catalyst shows an overpotential of 182 mV at 10 mA cm⁻² and maintains stability for over 600 hours.
The catalyst achieved a hydrogen production cost of US$0.88 kg⁻¹, surpassing U.S. DOE 2031 targets.
The OER primarily occurs through an enhanced adsorbate evolution mechanism rather than the detrimental lattice oxygen mechanism.

Wu et al. (2026) studied this question.

View Full Paper

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Bookmark