In the energy transition process, researchers nhave been focussing on using electrochemical energy storage to convert renewable energy into value-added products since this technology has an exciting potential for transforming atmospheric and industrial CO₂ into useful materials. Currently, many 3D catalysts can effectively reduce CO₂ into C₁ products, while producing more valuable C₂₊ products remains challenging because of issues such as high overpotential, poor stability and low selectivity and efficiency. Recently, two-dimensional materials have been developed as catalysts. These materials confine electron movement to two directions, hence boosting their catalytic effect. In this work, several LDH and TMD catalysts will be synthetized with promising results in energy efficiency and yield. A quick screening of these materials will enable us to unravel their degradation mechanisms based on advanced operando characterization. The findings of this study will have several practical implications for industrial applications since they are easy to scale up to be used as gas diffusion electrodes on flow cells.