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“School of Nano-Sciences”

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Paper   IPM / Nano-Sciences / 15457
School of Nano Science
  Title:   Graphyne as the anode material of magnesium-ion batteries: ab initio study
  Author(s): 
1.  E. Shomali
2.  Esmail Abdolhosseini Sarsari
3.  F. Tabatabaei
4.  MR. Mosaferi
5.  N. Seriani
  Status:   Published
  Journal:
  Vol.:  163
  Year:  2019
  Pages:   315
  Publisher(s):   Elsevier. B. V
  Supported by:  IPM
  Abstract:
Graphyne, a single atomic layer structure of the carbon six-member rings connected by one acetilenic linkage, is a promising anode of rechargeable batteries. In this paper, a first-principle study has been carried out on graphyne as a new candidate for the anode material of magnesium-ion batteries, using density functional theory calculations. The main focus is on the magnesium adsorption on graphyne surface. The structural properties such as adsorption height and energy, the most stable adsorption sites, the Band structure and DOS of the pristine graphyne the diverse Mg-decorated graphyne structures, and energy barrier against Mg diffusion are also calculated. As a consequence of the band structure and DOS of graphyne structures, it is found that the pristine graphyne and the Mg-decorated graphyne structures show a semiconducting nature and metallic behavior, respectively. Moreover, the migration behavior of Mg on graphyne for the main diffusion paths is determined by the Nudged Elastic Band (NEB) method.

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