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Nanoscale reactivity of ZnxMg20−x investigated by structural and electronic indicators

Abstract : First-principles calculations are reported for a small Zn–Mg nanoalloy, to get insight into fundamental physico-chemical properties that can be at the roots of the improved efficiency of Zn–Mg coatings against corrosion. We identify and rationalize composition-dependent features which modulate the noticeable charge transfer from Zn to Mg atoms. Local reactivity indicators demonstrate that Mg sites are, on average, the most reactive ones. Global reactivity indicators show that oxidation of the doped surface is a faster and more exothermic process as compared to a pure zinc surface. © 2017 Elsevier Ltd
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https://hal.univ-brest.fr/hal-03198949
Contributor : Nicolas Renard <>
Submitted on : Thursday, April 15, 2021 - 11:54:17 AM
Last modification on : Friday, April 16, 2021 - 3:19:14 AM

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A. Lebon, A. Aguado, A. Vega. Nanoscale reactivity of ZnxMg20−x investigated by structural and electronic indicators. Corrosion Science, 2017, 124, pp.35-45. ⟨10.1016/j.corsci.2017.04.022⟩. ⟨hal-03198949⟩

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