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Theory of Kinetically Controlled Electrode Reaction Coupled to Ion Transfer across the Liquid/Liquid Interface
Author(s) -
KomorskyLovrić Šebojka,
Lovrić Milivoj
Publication year - 2014
Publication title -
chemelectrochem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.182
H-Index - 59
ISSN - 2196-0216
DOI - 10.1002/celc.201300048
Subject(s) - electrolyte , dimensionless quantity , solvent , chemistry , electrode , ion , redox , electron transfer , conductivity , reaction rate constant , voltammetry , cyclic voltammetry , ities , analytical chemistry (journal) , aqueous solution , supporting electrolyte , horizontal scan rate , inorganic chemistry , electrochemistry , thermodynamics , kinetics , organic chemistry , physics , quantum mechanics
An electron‐transfer reaction at a graphite electrode covered by a thin film of an organic solvent that is immiscible with water, immersed into an aqueous electrolyte solution, is studied theoretically. The redox couple is confined within the film, and conductivity is achieved by the transfer of an anion of supporting electrolyte across the organic solvent/water interface. In linear scan voltammetry, the peak potential depends on the initial concentration of either the reactant or the anion of supporting electrolyte in the film. A critical value of the dimensionless kinetic parameter κ , which can be used to determine the standard rate constant, is calculated.