Forschungsbereich - Elektrochemische Grenzschichten

Die Schwerpunkte dieses Forschungsgebietes umfassen aktuell die vielfältigen Fragestellungen zur Grenzschicht zwischen Elektrode und Elektrolyt, also dem Bereich, wo elektrochemische Reaktionen ablaufen. Dabei untersuchen wir neben der Struktur der Elektrode/Elektrolyt-Grenzschicht auch den daran ablaufenden Prozessen, z.B. SEI-Bildung in Batterien, Degradationsmechanismen, Katalysator-(Weiter)Entwicklung, Prozeßoptimierung, usw., auch die Reaktionsabläufe in Batterien oder Brennstoffzellen.

Experiment

Fundamental understanding and resolving local electrochemical reactions at the metal/electrolyte interface holds the key to enabling transformative advances in energy storage, catalysis and biological applications. Identifying relationships between the microscopic properties of adsorbed reactants and intermediates and the macroscopic kinetic rates of electrochemical reactions could help to create tailor-made surfaces with the microscopic structure required to achieve the desired catalytic properties. In-situ microscopic imaging of an electrode surfaces helps reveal the structural properties of adlayers on surfaces, on an atomic level, in real space, to compare with results from macroscopic techniques. By doing so, it is possible to reveal the specifics of electrochemical phenomena as a function of not only the nature of an electrolyte but also the surface structure of an electrode. A powerful method like in-situ STM can unlock the mysteries of the electrochemical double-layer, where to date often only speculations exist within the scientific community.

Theorie

...folgt in Kürze