“…Carbon capture, utilization, and storage (CCUS) is considered to be a key area of research for global decarbonization and has the potential to transfer the captured carbon to other valuable products. − One of the promising CO 2 utilization technologies is the electrochemical CO 2 reduction reaction (CO 2 RR), as this uses CO 2 and renewable electricity to produce valuable building blocks for the chemicals and fuels industry. , To date, electrochemical CO 2 to CO conversion has been a promising process due to the low overpotential, high product selectivity, stability, high current density, and ease of separation of gas products from the electrolyte. , For instance, membrane electrode assemblies (MEAs) incorporated into zero-gap CO 2 electrolyzers have been demonstrated for the stable and efficient conversion of CO 2 into CO at industrially relevant current densities (i.e., >200 mA cm –2 ). − Currently efforts on catalyst design, process optimization, and scaling have outlined the electrochemical CO 2 RR as a potential competitor over conventional technologies for syngas production. − Recently, by tailoring the structure of Ag nanoparticles, a nanoporous silver (np-Ag) catalyst was developed to efficiently reduce CO 2 electrochemically into CO with approximately 92% selectivity under a moderate overpotential of 0.5 V . Besides, CO 2 crossover has been the common challenge for anion exchange membrane systems, which limits the CO 2 conversion to a maximum of 50%.…”