Adsorption of Ag on M-doped graphene: First principle calculations
Min Hu , Zhou Fan , Jian-yi Liu , Kun Zhang , Yang Wang , Chun-feng Yang
International Journal of Minerals, Metallurgy, and Materials ›› 2021, Vol. 28 ›› Issue (3) : 487 -494.
Adsorption of Ag on M-doped graphene: First principle calculations
Graphene is an ideal reinforcing phase for a high-performance composite filler, which is of great theoretical and practical significance for improving the wettability and reliability of the filler. However, the poor adsorption characteristics between graphene and the silver base filler significantly affect the application of graphene filler in the brazing field. It is a great challenge to improve the adsorption characteristics between a graphene and silver base filler. To solve this issue, the adsorption characteristic between graphene and silver was studied with first principle calculation. The effects of Ga, Mo, and W on the adsorption properties of graphene were explored. There are three possible adsorbed sites, the hollow site (H), the bridge site (B), and the top site (T). Based on this research, the top site is the most preferentially adsorbed site for Ag atoms, and there is a strong interaction between graphene and Ag atoms. Metal element doping enhances local hybridization between C or metal atoms and Ag. Furthermore, compared with other doped structures (Ga and Mo), W atom doping is the most stable adsorption structure and can also improve effective adsorption characteristic performance between graphene and Ag.
graphene / filler / first principle calculations / adsorption characteristic
| [1] |
|
| [2] |
|
| [3] |
|
| [4] |
|
| [5] |
|
| [6] |
|
| [7] |
|
| [8] |
|
| [9] |
|
| [10] |
|
| [11] |
|
| [12] |
|
| [13] |
|
| [14] |
|
| [15] |
|
| [16] |
|
| [17] |
|
| [18] |
J. Ma, A. Michaelides, D. Alfe, L. Schimka, G. Kresse, and E.G. Wang, Adsorption and diffusion of water on graphene from first principles, Phys. Rev. B, 84(2011), No. 3, art. No. 033402. |
| [19] |
|
| [20] |
|
| [21] |
P. Bloński and M. Otyepka, First-principles study of the mechanism of wettability transition of defective graphene, Nanotechnology, 28(2017), No. 6, art. No. 064003. |
| [22] |
|
| [23] |
|
| [24] |
|
| [25] |
|
| [26] |
|
| [27] |
|
| [28] |
|
| [29] |
|
| [30] |
|
| [31] |
|
| [32] |
S.V. Morozov, K.S. Novoselov, F. Schedin, D. Jiang, A.A. Firsov, and A.K. Geim, Two dimensional electron and hole gases at the surface of graphite, Phys. Rev. B, 72(2005), No. 20, art. No. 201401. |
| [33] |
|
| [34] |
|
| [35] |
|
| [36] |
|
| [37] |
|
| [38] |
|
| [39] |
|
| [40] |
|
| [41] |
|
| [42] |
|
| [43] |
|
| [44] |
|
| [45] |
|
| [46] |
|
| [47] |
|
| [48] |
|
| [49] |
Z. Jiang, Y. Zhang, H.L. Stormer, and P. Kim, Quantum hall states near the charge-neutral dirac point in graphene, Phys. Rev. Lett., 99(2007), art. No. 106802. |
| [50] |
|
| [51] |
|
/
| 〈 |
|
〉 |