Cyclic voltammetry at constant sphericity

Cyclic voltammetry has been applied to the study of a simple charge transfer reaction at a spherical electrode such as the static mercury drop electrode. Theoretical and experimental curves have been obtained at constant sphericity both for a reversible and slow electrode process, taking into accoun...

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Published inJournal of electroanalytical chemistry (Lausanne, Switzerland) Vol. 443; no. 2; pp. 243 - 252
Main Authors Martínez-Ortiz, F., Alcaraz, M.L., Roca, I., López-Tenés, M.
Format Journal Article
LanguageEnglish
Published Amsterdam Elsevier B.V 20.02.1998
Elsevier Science
Subjects
Chemistry
Cyclic voltammetry
Electrochemistry
Electrodes: preparations and properties
Exact sciences and technology
General and physical chemistry
Heterogeneous kinetic parameters
Other electrodes
Spherical electrode
Cyclic voltammetry
Heterogeneous kinetic parameters
Spherical electrode
Stationary electrode
Electrode reaction
Cadmium II Ions
Theoretical study
Potassium Nitrates
Kinetic parameter
Experimental study
Electrochemical reaction
Mercury
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Summary:Cyclic voltammetry has been applied to the study of a simple charge transfer reaction at a spherical electrode such as the static mercury drop electrode. Theoretical and experimental curves have been obtained at constant sphericity both for a reversible and slow electrode process, taking into account amalgam formation. The use of constant sphericity lends great advantages since, on the one hand it allows us to discriminate between kinetic and curvature effects, and on the other reduces the interference from uncompensated IR drop. Methods for evaluating heterogeneous kinetic parameters are also proposed.
ISSN:1572-6657
1873-2569
DOI:10.1016/S0022-0728(97)00488-9