The most challenging deal we face today is the need to lower greenhouse gas (GHG) emissions and tackle climate change. Though calls to reduce them are growing louder yearly, emissions remain unsustainably high. CO₂ is the key contributor to global climate change in the atmosphere. Electrochemical CO₂ reduction (EC CO₂R) into chemicals or fuels holds great research interest as a promising approach to mitigate CO₂ emissions and reach a carbon-neutral future.¹ In this regard, an extraordinary effort has been made to discover new efficient and sustainable catalysts at the laboratory level over recent years. High-performance electrocatalysts in aqueous electrolytes often rely on noble metals, which may hinder their industrial applications. Herein, we successfully synthesized core-shell Cu₂O/SnO₂ nanoparticles^2–4 functionalized with a silane group, using a simple and versatile methodology based on a three-step scalable synthesis method involving wet precipitation followed by salinization and, finally, a rhenium-based complex has been assembled by electro-polymerization.⁵ The carbon paper-supported Cu₂O/SnO₂-Re electrocatalyst was characterized at 10 cm² scale achieving a CO:H₂ ratio from 3 to 9, and demonstrating an stable syngas production up to 24 hours at -20 mA·cm^-2. To translate those developments from the laboratory level to a higher TRL towards the practical application of CO₂ capture and utilization⁶, an additional chamber was added to the system for the continuous CO₂ capture and electrochemical conversion, increasing the electrode area from 10 cm² to 100 cm². Captured CO₂ co-electrolysis to syngas (H₂:CO ratio of 5) in one step was demonstrated with a high CO₂ conversion at a current up to -2 A, indicating the scale-up potential of this intensified system. The technology is currently under validation in a TRL4 reactor composed of an array of 5 modules (i.e., 4 x 5 cells x 100 cm²) with a total active area of or 0.2m² for direct CO₂ conversion from simulated anthropogenic sources. The design integrates low-cost photovoltaic (PV) cells to provide any required additional bias to drive the reaction, thus, Perovskite PV panels with a cost of up to 5 times lower (10 €/m²) than Si PV cells were used. The TRL5 demonstration of the developed technology is being done with real flue gas emissions since October 2024.