- Thermodynamics and kinetics of electrochemical reactions:
Apparently simple electrochemical reactions like copper deposition or hydrogen adsorption are in fact complicated in the electrolytic environment. For example, the deposition of a hydrated Cu ion onto an electrode involves stripping off the solvation shell, adsorption on the metal surface and ordering of the resulting Cu-adatom gas. Furthermore, all processes may be accompanied by co-adsorption of electrolyte constituents.
We use electrochemical microcalorimetry with unprecedented sensitivity for the study of heat effects, e.g., upon the first stages of copper deposition on Au or of phase transitions of sodium dodecyl sulphate adlayers on Au. This provides information on elementary steps of the reaction and the species involved as well as on thermodynamic properties like reaction enthalpy and entropy. See More