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Avoiding oxidation with coating: graphene protected magnesium surfaces

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Abstract

Magnesium is a promising material for automotive technology. Avoiding its spontaneous oxidation is, however, mandatory for a feasible industrial application of this metal. We perform computer simulations to demonstrate that a protective graphene layer can successfully avoid the oxidation of a magnesium material. This feature remains true even when the graphene layer has several simple defects, such as vacancies and Stone–Wales transformations. In fact, the defects actually increase the strength of the graphene/metal interaction, further enhancing the protective properties. These results are rationalized in terms of the low Mg cohesive energy, which allows the system to quickly reconstruct and adapt.

Graphical abstract: Avoiding oxidation with coating: graphene protected magnesium surfaces

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Publication details

The article was received on 23 Apr 2019, accepted on 02 Aug 2019 and first published on 06 Aug 2019


Article type: Paper
DOI: 10.1039/C9CP02298H
Phys. Chem. Chem. Phys., 2019, Advance Article

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    Avoiding oxidation with coating: graphene protected magnesium surfaces

    J. A. Olmos-Asar and M. M. Mariscal, Phys. Chem. Chem. Phys., 2019, Advance Article , DOI: 10.1039/C9CP02298H

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