Fig. 5

CO partial pressure analysis of n-propanol production. a Modeling of the average [CO] in 100 nm catalyst at 30 mA cm⁻² over the change of CO partial pressure in 1 M KOH; the similar current density was achieved experimentally with an applied potential of −0.44 V vs. RHE. b CO partial pressure-dependent test on Cu adparticle electrocatalysts at −0.44 V vs. RHE in 1 M KOH. c The FE_n-propanol/FEC₂ ratio of Cu adparticle electrocatalysts obtained on different CO partial pressure at −0.44 V vs. RHE in 1 M KOH