Figure 13. Electrochemical characterization of the catalytic (top) and O₂ inhibition properties (bottom) of different proximal cluster variants (left to right) of S. enterica Hyd-5.

The 5 mV s⁻¹ cyclic voltammetry H₂ catalysis experiments were measured under a gas atmosphere of 10% H₂ while the chronoamperometry O₂ inhibition experiments were conducted at a potential of +0.06 V versus SHE with changing gas atmosphere as indicated. Other experimental conditions: pH 6, 37°C, rotation rate 4000 rpm and total gas flow rate of 100 scc min⁻¹ with N₂ as carrier gas.