D1.1 Hybrid PEcats concept and performance specifications – Executive Summary

The objective of this deliverable is to update the state-of-the-art (SoA) related to the photoelectrocatalysts (PECats) and ionic liquids (ILs) that are used for the conversion of the CO2 with water splitting at the anodic side of a photoelectrochemical cell, in order to define the most promising ILs and the concept of PECats to be developed for the SUNCOCHEM TPER prototype. For this reason, a general introduction is provided to focus the overall goals of the project. Then, the SoA of Ionic Liquids used for the different applications exploited in the project: CO₂ capture, CO₂ electrochemical reduction and CO carbonylation, is reviewed. Subsequently, the SoA of photoelectrodes and tandem cells employed in literature for the CO₂ reduction to CO coupled to and water splitting are presented. Finally, general conclusions are drawn regarding the next steps of development that will be followed in the SUNCOCHEM project based on this literature update.