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Study of Electrochemical Processes with Coupled Homogeneous Chemical Reaction in Differential Pulse Voltammetry at Spherical Electrodes and Microhemispheres
Author(s) -
Laborda Eduardo,
MartínezOrtiz Francisco,
Molina Ángela
Publication year - 2010
Publication title -
electroanalysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.574
H-Index - 128
eISSN - 1521-4109
pISSN - 1040-0397
DOI - 10.1002/elan.200900628
Subject(s) - electrochemistry , electrode , differential pulse voltammetry , chemical reaction , voltammetry , redox , reaction rate constant , kinetic energy , analytical chemistry (journal) , homogeneous , cyclic voltammetry , pulse (music) , reaction mechanism , chemistry , materials science , inorganic chemistry , kinetics , thermodynamics , organic chemistry , catalysis , optics , physics , quantum mechanics , detector
Abstract Homogeneous chemical reactions coupled to oxidation‐reduction processes at electrode surfaces are very common in electrochemistry. In this paper we cope with the application of Differential Pulse Voltammetry at spherical electrodes and microhemispheres for the study of this kind of systems. Analytical expressions are deduced from which the influence of the different experimental variables is examined. Several diagnostic criteria for elucidation of the reaction mechanism from DPV peak parameters are given, as well as working curves for extraction of the kinetic rate constants of the chemical reaction.