Figure 1.

A) Chemical structure of the Mn‐corrole B) cyclic voltammetry of Mn‐corrole dissolved in ACN under Ar (black), CO₂ (red), in ACN/H₂O (4:1) under Ar (blue) and in ACN/H₂O (4:1) under CO₂ (green). C) Heterogeneous electrocatalysis of 0.5 mg cm⁻² Mn‐corrole on carbon paper electrode under Ar (red) and CO₂ (black) at pH 6.0 (Ag/AgCl/1 m KCl, Pt, 100 mV s⁻¹). D) Controlled potential electrolysis of Mn‐corrole immobilized on a carbon paper electrode in 0.1 m phosphate buffer (pH 6) saturated with CO₂ at −1.25 V vs. Ag/AgCl for 5 h. All homogeneous cyclic voltammetry measurements were performed with 0.1 m TBAPF₆ as supporting electrolyte using glassy carbon as working, platinum wire as counter and a non‐aqueous pseudo‐Ag/AgCl reference electrode at a scan rate of 100 mV s⁻¹.