Extended Data Fig. 5: Schematic representation of the mechanism of solution-based electrocatalysis with TEMPO•.

Electrochemical oxidation (step 1), adduct formation (step 2), alcohol oxidation (step 3) and catalyst regeneration (step 4).

Electrochemical oxidation (step 1), adduct formation (step 2), alcohol oxidation (step 3) and catalyst regeneration (step 4).