Figure 7.

(A) LSV curves recorded at ν = 10 mV s^–1 sweep rate and (B) partial current densities for CO and H₂ formation and the ratio of these during electrolysis at ΔU = −2.75 V, both as a function of the differential CO₂ pressure for a cell underperforming at atmospheric pressure. The cathode compartment was purged with humidified CO₂ at a flow rate of u = 750 ncm³ min^–1.