Electrochemical reduction of carbon monoxide into fuels and chemicals provides a sustainable way to convert a pollutant into valuable hydrocarbons (methane, ethylene) and oxygenates (methanol, ethanol) . However, this process poses significant challenges in catalysis, particularly in achieving high efficiency and selectivity . Understanding the fundamental mechanisms and key aspects that govern the electrochemical reduction of CO is crucial for the development of effective catalysts. Elemental copper and copper-based compounds are unique in their ability to catalyze the production of hydrocarbons and oxygenates from CO reduction with significant yields . Despite this capability, these materials typically operate at high overpotentials and exhibit poor selectivity, limiting their practical application . Therefore, improving the catalytic performance of copper-based materials remains a critical area of research.