Mercury removal from graphene by bombardment with xenon clusters: Computer simulation

被引：1

作者：

Galashev, A. E. ^{[1
]}

Galasheva, A. A. ^{[1
]}

机构：

[1] Russian Acad Sci, Inst High Temp Elect, Ural Div, Ekaterinburg 620137, Russia

来源：

HIGH ENERGY CHEMISTRY | 2015年 / 49卷 / 05期

基金：

俄罗斯基础研究基金会;

关键词：

MOLECULAR-DYNAMICS SIMULATION; ANODIC-STRIPPING VOLTAMMETRY; FILM ELECTRODE; CARBON NANOTUBES; CADMIUM; ATOMS; PLATFORM; COPPER; LEAD;

D O I：

10.1134/S0018143915050057

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Molecular dynamics simulation of the bombardment of a target with a Xe(13)cluster beam at energies of 5-30 eV and incidence angles of 0A degrees-60A degrees aiming to remove a mercury film from partially hydrogenated imperfect graphene has been performed. The graphene is completely cleaned of mercury at a cluster energy of E (Xe) a parts per thousand yen 15 eV. It has been revealed that the mercury film tends to form a droplet. Mercury is removed from the graphene film via sputtering of single atoms and droplet detachment. The energy of interaction of mercury with graphene is very low and weakly depends on the incident beam energy. The horizontal mobility of atoms in the liquid metal film has a significantly higher value than their vertical mobility. A stress in graphene resulting from forces normal to the sheet plane is noticeably higher than that due to forces acting in its plane. Bombardment at an angle of incidence of 45A degrees is more efficient than that at incidence angles of 0A degrees and 60A degrees and leads to lower graphene roughness.

引用

页码：347 / 351

页数：5

共 29 条

[1] Superior thermal conductivity of single-layer graphene [J].

Balandin, Alexander A. ;

Ghosh, Suchismita ;

Bao, Wenzhong ;

Calizo, Irene ;

Teweldebrhan, Desalegne ;

Miao, Feng ;

Lau, Chun Ning .

NANO LETTERS, 2008, 8 (03) :902-907

[2] MOLECULAR-DYNAMICS WITH COUPLING TO AN EXTERNAL BATH [J].

BERENDSEN, HJC ;

POSTMA, JPM ;

VANGUNSTEREN, WF ;

DINOLA, A ;

HAAK, JR .

JOURNAL OF CHEMICAL PHYSICS, 1984, 81 (08) :3684-3690

[3] Electrowetting in carbon nanotubes [J].

Chen, JY ;

Kutana, A ;

Collier, CP ;

Giapis, KP .

SCIENCE, 2005, 310 (5753) :1480-1483

[4] Energy of substitution of atoms in the epitaxial graphene-buffer layer-SiC substrate system [J].

Davydov, S. Yu. .

PHYSICS OF THE SOLID STATE, 2012, 54 (04) :875-882

[5] High yield events of molecular emission induced by kiloelectronvolt particle bombardment [J].

Delcorte, A ;

Garrison, BJ .

JOURNAL OF PHYSICAL CHEMISTRY B, 2000, 104 (29) :6785-6800

[6]

Ertas FN, 2000, TURK J CHEM, V24, P261

[7] Practical Chemical Sensors from Chemically Derived Graphene [J].

Fowler, Jesse D. ;

Allen, Matthew J. ;

Tung, Vincent C. ;

Yang, Yang ;

Kaner, Richard B. ;

Weiller, Bruce H. .

ACS NANO, 2009, 3 (02) :301-306

[8] Molecular dynamics simulation of the physicochemical properties of silicon nanoparticles containing 73 atoms [J].

Galashev, A. E. ;

Polukhin, V. A. ;

Izmodenov, I. A. ;

Rakhmanova, O. R. .

GLASS PHYSICS AND CHEMISTRY, 2007, 33 (01) :86-95

[9] Computer simulation of cluster bombardment of a lead film on graphene [J].

Galashev, A. E. ;

Galasheva, A. A. .

HIGH ENERGY CHEMISTRY, 2015, 49 (02) :117-121

[10] Mechanical and thermal stability of graphene and graphene-based materials [J].

Galashev, A. E. ;

Rakhmanova, O. R. .

PHYSICS-USPEKHI, 2014, 57 (10) :970-989

← 1 2 3 →