Fig. 1 | Nature Communications

Fig. 1

From: Direct oxygen isotope effect identifies the rate-determining step of electrocatalytic OER at an oxidic surface

Fig. 1

Minimal mechanism of the OER at a solid metal oxide electrode. While coordination of water is fast, the oxidation to a high-valent metal-oxo (which occurs in several steps) or the formation of an O−O bond (which can take place on either of two distinct pathways) can, depending on the system and conditions considered, represent the slowest and rate-determining step

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