Correspondence between experiment and theory of bulk electrocrystallisation at solid electrodes in aqueous electrolyte

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

A model of electrodeposition and electrodissolution at electrode surfaces in aqueous solution is presented. The description is based on the assumption that redox reaction of water is the more important process controlling the electrode kinetics. Chronoamperometric measurements and experiments of cyclic voltammetry indicate that the current fundamentally is proportional to inverse time. It was proposed that redox-active species different from water never touch the surface but they predominantly interact with surface-active hydrogen or oxygen formed at the surface by redox processes of water. An excellent correspondence was found between the number of ideal-gas molecules in a monolayer at the electrode surface and the charge required, as to dissolve one monolayer of electrodeposited metal. The linear relation between standard enthalphy of metal-oxide formation and standard-reduction potential shows that metal oxide formation at the electrode corresponds to oxidation of a metal in an atmosphere of oxygen.

Original languageEnglish
Title of host publicationECS Transactions - Molecular Structure of the Solid-Liquid Interface and its Relationship to Electrodeposition 6 - 214th ECS Meeting
Pages25-35
Number of pages11
Volume16
Edition46
DOIs
Publication statusPublished - 2008
EventMolecular Structure of the Solid-Liquid Interface and its Relationship to Electrodeposition 6 - 214th ECS Meeting - Honolulu, HI, United States
Duration: Oct 12 2008Oct 17 2008

Other

OtherMolecular Structure of the Solid-Liquid Interface and its Relationship to Electrodeposition 6 - 214th ECS Meeting
CountryUnited States
CityHonolulu, HI
Period10/12/0810/17/08

Fingerprint

Electrolytes
Electrodes
Metals
Experiments
Monolayers
Water
Oxides
Oxygen
Redox reactions
Electrodeposition
Cyclic voltammetry
Oxidation
Hydrogen
Molecules
Kinetics
Gases
Oxidation-Reduction

All Science Journal Classification (ASJC) codes

  • Engineering(all)

Cite this

Andersen, J. E. T. (2008). Correspondence between experiment and theory of bulk electrocrystallisation at solid electrodes in aqueous electrolyte. In ECS Transactions - Molecular Structure of the Solid-Liquid Interface and its Relationship to Electrodeposition 6 - 214th ECS Meeting (46 ed., Vol. 16, pp. 25-35) https://doi.org/10.1149/1.3169316
Andersen, J. E T. / Correspondence between experiment and theory of bulk electrocrystallisation at solid electrodes in aqueous electrolyte. ECS Transactions - Molecular Structure of the Solid-Liquid Interface and its Relationship to Electrodeposition 6 - 214th ECS Meeting. Vol. 16 46. ed. 2008. pp. 25-35
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Andersen, JET 2008, Correspondence between experiment and theory of bulk electrocrystallisation at solid electrodes in aqueous electrolyte. in ECS Transactions - Molecular Structure of the Solid-Liquid Interface and its Relationship to Electrodeposition 6 - 214th ECS Meeting. 46 edn, vol. 16, pp. 25-35, Molecular Structure of the Solid-Liquid Interface and its Relationship to Electrodeposition 6 - 214th ECS Meeting, Honolulu, HI, United States, 10/12/08. https://doi.org/10.1149/1.3169316

Correspondence between experiment and theory of bulk electrocrystallisation at solid electrodes in aqueous electrolyte. / Andersen, J. E T.

ECS Transactions - Molecular Structure of the Solid-Liquid Interface and its Relationship to Electrodeposition 6 - 214th ECS Meeting. Vol. 16 46. ed. 2008. p. 25-35.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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AB - A model of electrodeposition and electrodissolution at electrode surfaces in aqueous solution is presented. The description is based on the assumption that redox reaction of water is the more important process controlling the electrode kinetics. Chronoamperometric measurements and experiments of cyclic voltammetry indicate that the current fundamentally is proportional to inverse time. It was proposed that redox-active species different from water never touch the surface but they predominantly interact with surface-active hydrogen or oxygen formed at the surface by redox processes of water. An excellent correspondence was found between the number of ideal-gas molecules in a monolayer at the electrode surface and the charge required, as to dissolve one monolayer of electrodeposited metal. The linear relation between standard enthalphy of metal-oxide formation and standard-reduction potential shows that metal oxide formation at the electrode corresponds to oxidation of a metal in an atmosphere of oxygen.

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Andersen JET. Correspondence between experiment and theory of bulk electrocrystallisation at solid electrodes in aqueous electrolyte. In ECS Transactions - Molecular Structure of the Solid-Liquid Interface and its Relationship to Electrodeposition 6 - 214th ECS Meeting. 46 ed. Vol. 16. 2008. p. 25-35 https://doi.org/10.1149/1.3169316