Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Effect of Graphene on Nickel Surface Relaxation: Molecular Dynamics Simulation

Version 1 : Received: 22 August 2023 / Approved: 23 August 2023 / Online: 23 August 2023 (04:40:21 CEST)

A peer-reviewed article of this Preprint also exists.

Konorev, S.; Yanchuk, V.; Kruhlov, I.; Orlov, A.; Sidorenko, S.; Vladymyrskyi, I.; Prikhodko, S.; Voloshko, S. Effect of Graphene on Nickel Surface Relaxation: Molecular Dynamics Simulation. Lubricants 2023, 11, 405. Konorev, S.; Yanchuk, V.; Kruhlov, I.; Orlov, A.; Sidorenko, S.; Vladymyrskyi, I.; Prikhodko, S.; Voloshko, S. Effect of Graphene on Nickel Surface Relaxation: Molecular Dynamics Simulation. Lubricants 2023, 11, 405.

Abstract

The effect of graphene (GR) on Ni surface relaxation and reconstruction in three different substrate orientations: {111}, {001}, {011}, at two different temperatures: 300K and 400K was studied using Molecular Dynamics simulation. The change of the interplanar distances of the substrate and redistribution of Ni and C atoms in direction perpendicular to the surface were compared with the equilibrium state of GR and bulk Ni, in the absence of the counterpart. The surface reconstruction for GR/Ni system was analyzed base on the calculated radial pair distribution function of Ni and C atoms. The surface roughness was visualized using 2D atomic distribution maps. For the studied substrate orientations and temperatures, it was found that the most densely packed orientation of the Ni base {111} provides minimal changes of the structural parameters of both counterparts at 400 K.

Keywords

molecular dynamic simulation; interplane distance; graphene; surface relaxation; surface reconstruction; packing density

Subject

Chemistry and Materials Science, Surfaces, Coatings and Films

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