Fig. 5: Optimized COR performance of the Cd-Cu electrode.
From: Site-selective protonation enables efficient carbon monoxide electroreduction to acetate
a Schematic of the amount of interfacial water near the electrode surface with different cation ions. b Acetate FE (top) and gas product FE (bottom) on the Cd-Cu in different 3 M electrolytes. c FE values for each COR product and H2 in 3 M electrolytes with different ratio of K+ to Cs+. d Partial current density of acetate, ethylene and H2. e Energy efficiency on the Cd-Cu and the Cu electrodes. f Acetate FE, C2+ FE and SPCC of the Cd-Cu with different CO flow rate at the current of 2.4 A in an area=16 cm2 MEA electrolyser. g Comparison of this work with state-of-the-art COR electrodes under atmospheric pressure, including acetate FE, acetate energy efficiency, SPCC, C2+ FE and H2 FE. h FEs of acetate and H2 as well as cell voltage during 20 h operation of COR at a constant current density of 150 mA cm–2. The mass loading of the electrodes is 4 mg cm–2. Error bars represent the standard deviation of three independent experiments. Cell potentials were not iR corrected.
