Calculation of the cohesive energy of metallic nanoparticles by the Lennard-Jones potential

被引:32
作者
Qi, WH [1 ]
Wang, MP
Hu, WY
机构
[1] Cent S Univ, Sch Mat Sci & Engn, Changsha 410083, Peoples R China
[2] Hunan Univ, Dept Appl Phys, Changsha 410082, Peoples R China
关键词
Lennard-Jones potential; cohesive energy; nanoparticles;
D O I
10.1016/j.matlet.2003.10.048
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The cohesive energy of metallic nanoparticles has been studied by Lennard-Jones potential. It is found that the Lennard-Jones potential can be used to calculate the cohesive energy of metallic nanoparticles by considering the size-dependent potential parameters. It is predicted that the cohesive energy of small particles decreases with decreasing the particle size, which is consistent with the experimental values of Mo and W nanoparticles. (C) 2004 Elsevier B.V. All rights reserved.
引用
收藏
页码:1745 / 1749
页数:5
相关论文
共 11 条
[1]   Surface tension of ultrafine particles [J].
Alymov, MI ;
Shorshorov, MK .
NANOSTRUCTURED MATERIALS, 1999, 12 (1-4) :365-368
[2]   SIZE EFFECT ON MELTING TEMPERATURE OF GOLD PARTICLES [J].
BUFFAT, P ;
BOREL, JP .
PHYSICAL REVIEW A, 1976, 13 (06) :2287-2298
[3]   Fast diffusion of a Lennard-Jones cluster on a crystalline surface [J].
Deltour, P ;
Barrat, JL ;
Jensen, P .
PHYSICAL REVIEW LETTERS, 1997, 78 (24) :4597-4600
[4]  
Edgar EL, 1993, PERIODIC TABLE ELEME, P1
[5]   The cluster size dependence of thermal stabilities of both molybdenum and tungsten nanoclusters [J].
Kim, HK ;
Huh, SH ;
Park, JW ;
Jeong, JW ;
Lee, GH .
CHEMICAL PHYSICS LETTERS, 2002, 354 (1-2) :165-172
[6]  
KITTEL C, 1996, INTRO SOLID STATE PH, P65
[7]   Size dependence of vacancy formation energy of metallic nanoparticles [J].
Qi, WH ;
Wang, MP .
PHYSICA B-CONDENSED MATTER, 2003, 334 (3-4) :432-435
[8]   The particle size dependence of cohesive energy of metallic nanoparticles [J].
Qi, WH ;
Wang, MP ;
Xu, GY .
CHEMICAL PHYSICS LETTERS, 2003, 372 (5-6) :632-634
[9]   Size effect on the cohesive energy of nanoparticle [J].
Qi, WH ;
Wang, MP .
JOURNAL OF MATERIALS SCIENCE LETTERS, 2002, 21 (22) :1743-1745
[10]   Size effect on the lattice parameters of nanoparticles [J].
Qi, WH ;
Wang, MP ;
Su, YC .
JOURNAL OF MATERIALS SCIENCE LETTERS, 2002, 21 (11) :877-878