Video - STM

Interfaces between solid metals and liquid electrolyte solutions play a central role in electrochemical processes, ranging from corrosion to galvanic deposition and electrode reactions in batteries and fuel cells. The motion and interaction of atomic and molecular species at these interfaces is an important fundamental step in many of those reactions and of considerable relevance for understanding their precise mechanisms. Our group has developed a worldwide unique high-speed scanning tunnelling microscope (Video-STM), capable of directly observing these dynamic processes with atomic resolution and millisecond time resolution in electrochemical environment. 

Examples can be downloaded from our Atomic Movie Library.

By performing these microscopic investigations at variable electrode potential and temperature and analyzing them with statistical methods we can measure the involved energies and obtain detailed data on the Vorlesung dynamics of these elemental processes in well-suited model systems.
The following topics have been studied by this technique:mehr