How to Minimize Faradaic Efficiency Error in Electrochemical CO<sub>2</sub> Reduction for Gas Products
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Faradaic efficiency (FE) is an important metric for evaluating electrochemical processes, such as carbon dioxide reduction, that is often used for performance comparisons. Although the equation to calculate FE is well-known, details needed to yield accurate values are often overlooked, potentially leading to errors exceeding 100%. Avoiding any errors is crucial for drawing correct conclusions, especially during a catalysis optimization process. Factors with high potential for FE errors include incorrect mass flow rates and temperature values, imprecise gas chromatography calibrations, and uncorrected gas viscosities, while factors with less potential are also identified. This manuscript presents FE calculation guidelines intended for both newcomers and experts in the field of electrochemical fuel production.
