Computational Studies of Catalytic Particles for Carbon Nanotube Growth

被引:4
作者
Bolton, Kim [1 ,2 ]
Ding, Feng [3 ]
Borjesson, Anders [1 ,2 ]
Zhu, Wuming [2 ]
Duan, Haiming [4 ]
Rosen, Arne [2 ]
Harutyunyan, Avetik R. [5 ]
Curtarolo, Stefano [6 ]
机构
[1] Univ Coll Boras, SE-50190 Boras, Sweden
[2] Univ Gothenburg, Dept Phys, SE-41296 Gothenburg, Sweden
[3] Rice Univ, ME&MS Dept, Houston, TX 77005 USA
[4] Xinjiang Univ, Dept Phys, Urumqi 830046, Xinjiang, Peoples R China
[5] Honda Res Inst USA Inc, Columbus, OH 43212 USA
[6] Duke Univ, ME&MS Dept, Durham, NC 27708 USA
基金
瑞典研究理事会;
关键词
Cluster; Melting; Carbon Nanotubes; Simulations; CHEMICAL-VAPOR-DEPOSITION; MOLECULAR-DYNAMICS SIMULATION; DIAMETER-CONTROLLED SYNTHESIS; TOTAL-ENERGY CALCULATIONS; MELTING-POINT DEPRESSION; AB-INITIO; SWNT GROWTH; VIBRATIONAL ANALYSIS; SIZE DEPENDENCE; CVD SYNTHESIS;
D O I
10.1166/jctn.2009.1001
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
We review our computational studies of the melting temperatures and mechanisms of iron and iron-carbide clusters. Both isolated and supported clusters have been considered, and substrates with different shapes or pores have been simulated. It has been seen, for example, that the surface curvature-or local surface curvature-of the particle plays a dominant role in the melting mechanism and temperature. It has also been observed that the melting mechanism for small clusters is different to that of larger clusters.
引用
收藏
页码:1 / 15
页数:15
相关论文
共 128 条
[41]  
Dresselhaus M.S., 2001, Carbon Nanotubes: Synthesis, Structure, Properties, and Applications
[42]   Initial growth of single-walled carbon nanotubes on supported iron clusters:: a molecular dynamics study [J].
Duan, H. ;
Ding, F. ;
Rosen, A. ;
Harutyunyan, A. ;
Tokune, T. ;
Curtarolo, S. ;
Bolton, K. .
EUROPEAN PHYSICAL JOURNAL D, 2007, 43 (1-3) :185-188
[43]   Size dependent melting mechanisms of iron nanoclusters [J].
Duan, Haiming ;
Ding, Feng ;
Rosen, Arne ;
Harutyunyan, Avetik R. ;
Curtarolo, Stefano ;
Bolton, Kim .
CHEMICAL PHYSICS, 2007, 333 (01) :57-62
[44]   Growth of isolated carbon nanotubes with lithographically defined diameter and location [J].
Duesberg, GS ;
Graham, AP ;
Liebau, M ;
Seidel, R ;
Unger, E ;
Kreupl, F ;
Hoenlein, W .
NANO LETTERS, 2003, 3 (02) :257-259
[45]   MELTING OF SMALL GOLD PARTICLES - MECHANISM AND SIZE EFFECTS [J].
ERCOLESSI, F ;
ANDREONI, W ;
TOSATTI, E .
PHYSICAL REVIEW LETTERS, 1991, 66 (07) :911-914
[46]   Phase and structural transformations in a molecular dynamics model of iron under ultrafast heating and cooling [J].
Evteev, AV ;
Kosilov, AT ;
Milenin, AV .
PHYSICS OF THE SOLID STATE, 2001, 43 (12) :2284-2289
[47]   Synthesis of single-walled carbon nanotubes using binary (Fe, Co, Ni) alloy nanoparticles prepared in situ by the reduction of oxide solid solutions [J].
Flahaut, E ;
Govindaraj, A ;
Peigney, A ;
Laurent, C ;
Rousset, A ;
Rao, CNR .
CHEMICAL PHYSICS LETTERS, 1999, 300 (1-2) :236-242
[48]   Continuous spinning of a single-walled carbon nanotube-nylon composite fiber [J].
Gao, JB ;
Itkis, ME ;
Yu, AP ;
Bekyarova, E ;
Zhao, B ;
Haddon, RC .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2005, 127 (11) :3847-3854
[49]   Structural and vibrational analysis of amorphous Au-55 clusters [J].
Garzon, IL ;
PosadaAmarillas, A .
PHYSICAL REVIEW B, 1996, 54 (16) :11796-11802
[50]   Lowest energy structures of gold nanoclusters [J].
Garzon, IL ;
Michaelian, K ;
Beltran, MR ;
Posada-Amarillas, A ;
Ordejon, P ;
Artacho, E ;
Sanchez-Portal, D ;
Soler, JM .
PHYSICAL REVIEW LETTERS, 1998, 81 (08) :1600-1603