Doktorarbeiten

Bacteriophages, the viruses of bacteria, are ubiquitously found and represent the most abundant biological entities on the planet. Phage predation poses a constant threat to bacterial communities and results in an ongoing arms race characterized by continuousadaptation and counter-adaptation. [...]

Photoemission orbital tomography (POT) is an established technique to investigate the electronic properties of organic adsorbates on surfaces. In POT, a combined experimental and theoretical approach, angle-resolved photoelectron spectroscopy data are measured in a large angular range at a constant kinetic energy and compared to calculated wave functions of organic molecules. [...]

In the modern era, data has become more complex, posing additional challenges to conventional data analysis methods. This is where Artificial Intelligence comes into play, specifically Deep Learning algorithms. [...]

Ni- yttria-stabilized zirconia is commonly used as a fuel electrode cermet in solid oxide cells due to its compelling combination of conductivity, stability, and material compatibility. However, it faces significant degradation when exposed to hydrocarbon-rich fuels, such as tar-containing biogas. [...]

This thesis aims to answer the research question of how alternative fuels and powertrains can reduce nitrogen oxide (NOx) and particulate matter (PM) emissions in hotspots. The thesis proposes a new spatial bottom-up model that computes mileages and local pollutants of road transport, inland waterway transport, rail transport and air transport for North Rhine-Westphalia (NRW) as representative case study. [...]

The interplay between metal catalyst surfaces and its surrounding solvent environment has a considerable impact on interfacial electrochemical processes, affecting both activity and selectivity of electrochemical reactions, e.g., the carbon dioxide (CO2) reduction reaction. While atomistic simulations are useful to gain advanced insight into the metal-electrolyte interface, many challenging problems exist for a realistic, computational description of the complex electrochemical interface. [...]