Mass transfer and flooding phenomena in carbon dioxide electrolyzers

Electrochemical carbon dioxide reduction is a potential pathway to the sustainable production of hydrocarbon fuels and chemicals. This thesis explores the material science and reactor engineering of carbon dioxide electrolyzers.

Visualizing the pH profile inside the catholyte of a CO2 electrolysis cell

CO2 electrolysis to form CO with the use of electricity from renewable sources is a promising technique in closing the carbon cycle. Via the electrochemical reduction CO2 can be converted into different hydrocarbon products. These value-added products are for example CO, HCOOH, CH3OH or C2H4. The direct electrochemical route of CO2 reduction is...

Direct Imaging of Local pH Reveals Bubble-Induced Mixing in a CO₂ Electrolyzer

Electrochemical CO₂ reduction poses a promising pathway to produce hydrocarbon chemicals and fuels without relying on fossil fuels. Gas diffusion electrodes allow high selectivity for desired carbon products at high current density by ensuring a sufficient CO₂ mass transfer rate to the catalyst layer. In addition to CO...