Cover Feature: A Zero‐Gap Gas Phase Photoelectrolyzer for CO₂ Reduction with Porous Carbon Supported Photocathodes (ChemSusChem 16/2024)

The Cover Feature illustrates the importance of porous carbon fiber layers (CFLs) to the activity and selectivity of photocathodes for the CO2 reduction reaction (CO2RR) in a zero-gap gas-phase photoelectrolyzer. The wettability of the CFL modulates the local environment on the yellow-colored metal organic framework catalyst (UiO-66-NH2). Hydrophobic CFL-based photocathodes lead to CO2RR, producing liquid hydrocarbons such as formate, methanol and ethanol. In contrast, hydrophilic, wetted CFL-based photocathodes favor HER. More information can be found in the Research Article by A. Kaiser and co-workers.