The performance of electrocatalysts depends on material properties that may differ spatially even within a single particle. Now, a combination of operando microscopy techniques is used to correlate morphology and metal oxidation state with local activity of an oxygen evolution catalyst, which may help to guide future catalyst design.
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Risch, M. Greater than the sum of its parts. Nat Energy 6, 576–577 (2021). https://doi.org/10.1038/s41560-021-00850-5
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DOI: https://doi.org/10.1038/s41560-021-00850-5