Cathodic corrosion of zinc under potentiostatic conditions in NaCl solutions

Prestat, Michel; Soares Costa, Josiane; Lescop, Benoit; Rioual, Stéphane; Holzer, Lorenz; Thierry, Dominique

doi:10.1002/celc.201701325

Publication type:	Article in scientific journal
Type of review:	Peer review (publication)
Title:	Cathodic corrosion of zinc under potentiostatic conditions in NaCl solutions
Authors:	Prestat, Michel Soares Costa, Josiane Lescop, Benoit Rioual, Stéphane Holzer, Lorenz Thierry, Dominique
DOI:	10.1002/celc.201701325
Published in:	ChemElectroChem
Volume(Issue):	5
Issue:	8
Page(s):	1203
Pages to:	1211
Issue Date:	2018
Publisher / Ed. Institution:	Wiley
ISSN:	2196-0216
Language:	English
Subject (DDC):	540: Chemistry
Abstract:	Zinc electrodes were polarized cathodically at moderate overpotentials in NaCl 0.6 M solutions under potentiostatic conditions for 7 to 17 hours at room temperature. Corrosion products were characterized by using optical microscopy, XRD, Raman microscopy, XPS, and FIB‐SEM. Close to the open‐circuit potential, the corrosion products were formed by simonkolleite and the electrochemical response exhibits anodic features. At more negative potentials, the current density remains cathodic throughout the polarization and the deposits on the electrode surface consist almost solely of ZnO. The soluble zinc species necessary for ZnO deposition originate from localized dissolution of the substrate in the form of pits. This effect is assigned to the strong alkalinization of the surface due to oxygen reduction. Despite developing greater surface area than bare zinc substrates, the nanostructured ZnO deposits reduced the cathodic activity.
URI:	https://digitalcollection.zhaw.ch/handle/11475/15764
Fulltext version:	Published version
License (according to publishing contract):	Licence according to publishing contract
Departement:	School of Engineering
Organisational Unit:	Institute of Computational Physics (ICP)
Appears in collections:	Publikationen School of Engineering

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Prestat, M., Soares Costa, J., Lescop, B., Rioual, S., Holzer, L., & Thierry, D. (2018). Cathodic corrosion of zinc under potentiostatic conditions in NaCl solutions. ChemElectroChem, 5(8), 1203–1211. https://doi.org/10.1002/celc.201701325

Prestat, M. et al. (2018) ‘Cathodic corrosion of zinc under potentiostatic conditions in NaCl solutions’, ChemElectroChem, 5(8), pp. 1203–1211. Available at: https://doi.org/10.1002/celc.201701325.

M. Prestat, J. Soares Costa, B. Lescop, S. Rioual, L. Holzer, and D. Thierry, “Cathodic corrosion of zinc under potentiostatic conditions in NaCl solutions,” ChemElectroChem, vol. 5, no. 8, pp. 1203–1211, 2018, doi: 10.1002/celc.201701325.

PRESTAT, Michel, Josiane SOARES COSTA, Benoit LESCOP, Stéphane RIOUAL, Lorenz HOLZER und Dominique THIERRY, 2018. Cathodic corrosion of zinc under potentiostatic conditions in NaCl solutions. ChemElectroChem. 2018. Bd. 5, Nr. 8, S. 1203–1211. DOI 10.1002/celc.201701325

Prestat, Michel, Josiane Soares Costa, Benoit Lescop, Stéphane Rioual, Lorenz Holzer, and Dominique Thierry. 2018. “Cathodic Corrosion of Zinc under Potentiostatic Conditions in NaCl Solutions.” ChemElectroChem 5 (8): 1203–11. https://doi.org/10.1002/celc.201701325.

Prestat, Michel, et al. “Cathodic Corrosion of Zinc under Potentiostatic Conditions in NaCl Solutions.” ChemElectroChem, vol. 5, no. 8, 2018, pp. 1203–11, https://doi.org/10.1002/celc.201701325.