What does this research mean for the field?

Fine-tuning the Ru-O coordination number to form Ru2-O11 moieties in amorphous RuOx selectively activates the metal redox process and suppresses the oxygen redox pathway, resulting in highly active and stable acidic oxygen evolution electrocatalysis. Novelty: ClaimNovelty.NOVEL_FINDING. Consensus alignment: ConsensusAlignment.NEUTRAL.

What question did this study set out to answer?

The aim is to enhance the acidic oxygen evolution reaction (OER) by selectively tuning Ru–O coordination to promote metal redox processes while suppressing lattice oxygen involvement.

March 13, 2025Angewandte Chemie International EditionOpen Access

Tuning Ru–O Coordination for Switching Redox Centers in Acidic Oxygen Evolution Electrocatalysis

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Authors

YMYajing MuDalian Polytechnic University JFJinchang FanJilin University TGTianyi GaoYancheng Institute of Technology

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Implication

Randomized trial demonstrates improved catalytic performance in acid conditions, suggesting effective redox management.

Key Points

The aim is to enhance the acidic oxygen evolution reaction (OER) by selectively tuning Ru–O coordination to promote metal redox processes while suppressing lattice oxygen involvement.
Optimized RuO x catalyst to fine-tune Ru–O coordination number.
Measured catalysis performance by assessing overpotential at 10 mA cm −2 and stability over 300 hours.
Utilized X-ray absorption and operando spectra for characterization of redox processes.
The optimized catalyst achieved an overpotential of 215 mV at 10 mA cm −2.
Maintained stability with a degradation rate of 100 µV h −1 over 300 hours.
Theoretical calculations showed Ru 2 –O 11 moieties enabled metal redox activation and reduced energy barriers.

Cite This Study

Mu et al. (2025) studied this question.

synapsesocial.com/papers/6a40f2a7a307ad3478fdaef6 https://doi.org/10.1002/anie.202504876

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Tuning Ru–O Coordination for Switching Redox Centers in Acidic Oxygen Evolution Electrocatalysis

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Key Points

Cite This Study

Tuning Ru–O Coordination for Switching Redox Centers in Acidic Oxygen Evolution Electrocatalysis

Discussion

Member takes

Implication

Key Points

Cite This Study

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