Modification of the magnesium corrosion rate in physiological saline 0.9 wt % NaCl via chemical and electrochemical coating of reduced graphene oxide

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Title: Modification of the magnesium corrosion rate in physiological saline 0.9 wt % NaCl via chemical and electrochemical coating of reduced graphene oxide
Authors: Fernández Sáez, Javier | El Ouardi, Youssef | Bonastre Cano, José Antonio | Molina Jordá, José Miguel | Cases Iborra, Francisco Javier
Research Group/s: Materiales Avanzados
Center, Department or Service: Universidad de Alicante. Departamento de Química Inorgánica | Universidad de Alicante. Instituto Universitario de Materiales
Keywords: Magnesium | Reduced graphene oxide | Polarization curves | EIS | Corrosion
Knowledge Area: Química Inorgánica
Issue Date: 15-May-2019
Publisher: Elsevier
Citation: Corrosion Science. 2019, 152: 75-81. doi:10.1016/j.corsci.2019.01.025
Abstract: The synthesis of reduced graphene oxide onto magnesium discs by electrochemical and chemical methods is presented in this work. The surface morphology and atomic composition were investigated using field emission scanning electron microscopy and energy dispersive X-ray spectroscopy. The corrosion rate of different samples was analyzed in physiological saline 0.9 wt % NaCl solution by potentiodynamic polarization, electrochemical impedance spectroscopy and scanning electrochemical microscopy. As a result of the different treatments, a progressive decrease in the corrosion rate of the magnesium disc in the corroding environment was obtained, reaching up to 80% of reduction for the chemically modified sample.
Sponsor: The authors wish to thank the Spanish Agencia Estatal de Investigación (AEI) and European Union (FEDER funds) for the financial support (contracts MAT2016-77742-C2-1-P and MAT2016-77742-C2-2-P).
URI: http://hdl.handle.net/10045/91310
ISSN: 0010-938X (Print) | 1879-0496 (Online)
DOI: 10.1016/j.corsci.2019.01.025
Language: eng
Type: info:eu-repo/semantics/article
Rights: © 2019 Elsevier Ltd.
Peer Review: si
Publisher version: https://doi.org/10.1016/j.corsci.2019.01.025
Appears in Collections:INV - LMA - Artículos de Revistas

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