Table 2. Summary of Key Assumptions Used in the Microkinetic, Mass Balance, and 1D Multiphysics Models.
| parameter | value/note |
|---|---|
| operational current density | 100 mA/cm2 |
| CO2 conversion/utilization | 100% |
| volumetric flow rate | 100 mL/min |
| electrolyzer cell area | 100 cm2 |
| gas products | CO and H2 |
| proton source (KHCO3 case) | HCO3– |
| proton source (KHCO3/K2CO3 case) | H2O |
| FECO (KHCO3 case) | 3.9–63.2% (from 1D Multiphysics model) |
| FECO (KHCO3/K2CO3 case) | 40% |