Theory Department

Solid Oxide Electrolysis Cells (SOECs) are efficient electrochemical devices that convert electrical energy into chemical energy by splitting water into hydrogen and oxygen, or carbon dioxide into carbon monoxide and oxygen. A team of scientists from multiple institutions, led by researchers from the Fritz Haber Institute and the FZ Jülich, has provided unprecedented insights into the atomic-scale changes affecting SOEC performance. The team studied the aging and structural transformations of the electrode material Lanthanum Strontium Manganite (LSM) and the electrolyte Yttria-Stabilized Zirconia (YSZ) during operation. Their findings highlight how local solid-state chemistry, such as cation diffusion and secondary phase formation, influences both the performance and stability of SOECs, paving the way for strategies to improve the durability and efficiency of these cells. more

Water electrolysis is pivotal for sustainable energy systems, enabling hydrogen fuel production, which can be used in chemical industry, steel production, and electricity generation. The development of efficient catalysts for the Oxygen Evolution Reaction (OER) is crucial for advancing Proton Exchange Membrane (PEM) water electrolysis, with iridium-based OER catalysts showing promise despite the challenges related to their dissolution. Collaborative research by the Helmholtz-Zentrum Berlin für Materialien und Energie GmbH and the Fritz-Haber-Institut has provided insights into the mechanisms of OER performance and iridium dissolution for amorphous hydrous iridium oxides, advancing the understanding of this critical process. more

Strategic partnership on optoionics between TUM and Max Planck Society more

The Theory Department at the Fritz Haber Institute successfully launched its first Repair Club, initiated by postdoctoral researcher Martin Deimel in collaboration with the ELAB. The event brought together colleagues to learn and share skills in repairing electronic devices, focusing on replacing batteries in older laptops. more

From July 8th to 16th, the Zuse Institute hosted the CECAM Flagship Workshop titled “Machine Learning of First Principles Observables.” Organized by the Theory Department of the Fritz Haber Institute, the workshop focused on addressing the increasing demand for advanced models, workflows, and databases. The workshop effectively pinpointed key areas for enhancement in predicting observables from first principles and laid the groundwork for a collaborative network to drive future research initiatives. more