Fuel cells and electrolysis
Hydrogen conversion in fuel cells allows high energy densities and local zero-emission operation of electric vehicles. Surplus photovoltaic and wind energy and be used to generate hydrogen using electrolysers in the "power-to-gas" process. We use computer simulations to optimize lifetime and increase efficiency of fuel cells and electrolyzers.
Ageing mechanisms of PEM fuel cells
In the project PUMA MIND we investigate ageing mechanisms in polymer electrolyte membrane fuel cells (PEMFC) for automotive applications. CFD simulations on the cell level are coupled with microscopic degradation models in a multi-scale approach.
Elektrochemistry and transport in solid oxide fuel cells
The high-temperature ceramic fuel cell (solid oxide fuel cell, SOFC) offers high fuel flexibility and therefore a good integration into the existing energy framework. The electrochemistry is based on complex multi-step surface reaction mechanisms, which we elucidate using elementary kinetic models.