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.

Electrochemical Ammonia Synthesis: Hydrogen Permeable Electrodes as Alternative Pathway for Nitrogen Reduction

In the last century, the indiscriminate use of fossil energy to power the industrial revolution and technological progress of humankind, has led to the depletion of limited natural resources and, most importantly, the emission and accumulation of alarming levels of pollutants and greenhouse gases (GHG) in the atmosphere. One of the major...

Operando spectroscopic methods to study electrochemical processes

Fossil resources are being depleted, while the concentration of CO2 in the atmosphere rises. There clearly is a strong and immediate need for a radical energy transition. Renewable energy is growing strongly as supplier of fossil-free electricity, but it needs large-scale and long-term storage options in order to be able to make a real impact on...

Direct Water Injection in Catholyte-Free Zero-Gap Carbon Dioxide Electrolyzers

A zero-gap flow electrolyzer with a tin-coated gas diffusion electrode as the cathode was used to convert humidified gaseous CO₂ to formate. The influence of humidification, flow pattern and the type of membrane on the faradaic efficiency (FE), product concentration, and salt precipitation were investigated. We demonstrated that...