Prof. Dr. Beatriz Roldán Cuenya

otherGermany 1 mention

Direction of Interface Science Department and catalyst research

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Often mentioned with · Technologies

Oxygen Reduction Reaction (ORR)

A key electrochemical reaction in hydrogen fuel cells where oxygen gains electrons. It is a notoriously sluggish process that requires efficient catalysts.

The electrical potential applied beyond the thermodynamic requirement, used to drive electrochemical reactions forward. The study shows overpotential is a critical variable that determines which reaction steps become rate-limiting.

Operando Spectroscopy and Microscopy

Analytical techniques that observe catalyst structural and chemical changes during actual operation under applied potential and varying conditions.

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Germany 1 mention

Germany 1 mention

In the news (1)

Fuel cell technology: dynamic rate-limiting steps unveiled in catalyst kinetics

5 months 26 days ago

Director of the Department of Interface Science at the Fritz Haber Institute. Leads the research group investigating fuel-cell electrocatalysts and their working principles under industrially relevant conditions. Emphasizes the importance of linking overpotential- and pressure-dependent chemical and structural changes

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