Data underlying the publication: An Advanced Guide to Assembly and Operation of CO2 Electrolyzers

In 2019 our research group provided an “introductory guide” to the assembly and operation of gas-diffusion electrodes for electrochemical CO2 reduction that acted as a starting point for researchers to shift from aqueous-fed reactants in H-cells to gas-fed reactants using gas-diffusion layers. At the time, we discussed the operational intricacies of rudimentary flow cells utilized at the time. The guide included cell assembly and operational details in the form of pictures and videos. In the past few years, however, substantial advancements have been made in the research field with regards to lab protocols, equipment, and product measurements that warrants an updated guide. Further, the previous guide did not discuss zero-gap membrane electrode assemblies (MEAs) in detail, which have now achieved widespread adoption in CO2electrolysis due to their cell simplicity and reduced ohmic losses. We then believe that the field would benefit from an updated “advanced guide” to the assembly and operation of gas-diffusion layers systems for the electrochemical reduction of CO2.