Local kinetics and thermodynamics of rapid electrochemical reactions.
We introduce and discuss a local kinetic mechanism for an n-electron electrochemical reaction at the interface formed by an electrode and diluted electrolyte. We show that the suggested mechanism is in agreement with the Nernst equation in the thermal equilibrium. We also qualitatively characterize the structure of a flat electrode-diluted electrolyte boundary in the meaning of the spatial distribution of electrochemical reactants and electric potential. As the suggested kinetic mechanism is not limited by the duration of relaxation processes in electric double layers, it is suitable for the understanding and simulation of fast transient processes that appear in modern applications such as nanocolloid dielectrophoresis, AC electrospray, AC electroosmosis, or nanopore biosensing.
Institute of Chemical Technology, Prague, Department of Chemical Engineering, Technická 5, 166 28 Praha 6, Czech Republic.
Michal
M
Přibyl
Institute of Chemical Technology, Prague, Department of Chemical Engineering, Technická 5, 166 28 Praha 6, Czech Republic.
Dalimil
D
Šnita