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Fully adiabatic dissociative electrochemical electron transfer reactions induced by scanning tunneling microscopy
Authors:A. M. Kuznetsov  I. G. Medvedev
Affiliation:(1) Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, Leninskii pr. 31, Moscow, 119991, Russia
Abstract:
A theory of fully adiabatic dissociative electrochemical processes of the electron transfer that are induced by scanning tunneling microscopy is constructed. Adiabatic free energy surfaces are calculated and properties of their symmetry are examined under various conditions. Diagrams of kinetic regimes, which characterize possible kinetic processes, which may proceed in the system under consideration, are constructed in the space of model parameters. Dependence of activation free energy on the bias voltage, overvoltage, physical properties of a molecule, and intensity of interaction of a molecule with an electrode and the tip of the scanning tunneling microscope is explored.
Keywords:dissociative electron transfer  scanning tunneling microscopy  adiabatic processes  activation energy
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