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WATER OXIDATION

Heterogeneous electrocatalysis goes chemical

Despite over a century of research to understand heterogeneous electrocatalysis, the precise mechanisms of action remain poorly understood. Now, it is proposed that the oxygen evolution reaction on IrOx is driven by changes in the redox state of the Ir–O active sites, rather than by changes in the interfacial electric field.

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Fig. 1: Heterogeneous water oxidation via surface chemical reactions.

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Correspondence to Shannon W. Boettcher or Yogesh Surendranath.

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Boettcher, S.W., Surendranath, Y. Heterogeneous electrocatalysis goes chemical. Nat Catal 4, 4–5 (2021). https://doi.org/10.1038/s41929-020-00570-1

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