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RESEARCH PRODUCT
Transduction of redox Gibbs free energy into modulated electrochemical work
Francesca D'albaSergio Di Lorenzosubject
ChemistryVapor pressureOscillationBiophysicsNucleationThermodynamicsElectrochemistryRedoxElectrochemical cellGibbs free energysymbols.namesakeTransduction (biophysics)ElectrochemistrysymbolsPhysical and Theoretical Chemistrydescription
Abstract This work supplies an electrochemical model in order to account for some oscillatory phenomena. The model can be applied both to living bodies and to electrochemical cells. We suppose that one of the products of an electrochemical reaction in solution has a high vapour pressure and study the influence of its mass transfers on its oscillations and on that of the current,induced by the former ones. Mass transfers that we consider are either that from the solution to theatmosphere above it or both that due to bubble nucleation and that from the solution to the bubbles alreadynucleated. Two different oscillation conditions are determined. One derives from the resistance due to theinterfacial tension; the other derives from the resistance due to the nucleation of a new phase.Numerical simulations were performed and oscillations in both the current and the concentration of one of theproducts are demonstrated.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1988-12-01 | Journal of Electroanalytical Chemistry and Interfacial Electrochemistry |