Single wall carbon nanotubes polymerization under compression: An atomistic molecular dynamics study

被引:20
作者
Braga, SF [1 ]
Galvao, DS [1 ]
机构
[1] Univ Estadual Campinas, Inst Fis Gleb Wataghin, BR-13083970 Campinas, SP, Brazil
基金
巴西圣保罗研究基金会;
关键词
D O I
10.1016/j.cplett.2005.11.115
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
Recently, it was reported experimental observations of crosslinking between carbon nanotubes (CNTs) under pressure. Similarly to CNT growth formation the details of these polymerization processes are still unclear. In this work, we report a molecular dynamics simulation of the polymerization of a bundle of single-wall carbon nanotubes under compression using Brenner reactive potentials. Our results show that for small tube diameters extensive crosslinking formation can occur. For larger tube diameter, we obtained the first theoretical evidences that scroll-like structures (recently experimentally obtained) can be formed from SWCNTs. (c) 2005 Elsevier B.V. All rights reserved.
引用
收藏
页码:394 / 399
页数:6
相关论文
共 33 条
[1]   TUBULANCES - CARBON PHASES BASED ON CROSS-LINKED FULLERENCE TUBULES [J].
BAUGHMAN, RH ;
GALVAO, DS .
CHEMICAL PHYSICS LETTERS, 1993, 211 (01) :110-118
[2]   Stability differences and conversion mechanism between nanotubes and scrolls -: art. no. 233404 [J].
Berber, S ;
Tománek, D .
PHYSICAL REVIEW B, 2004, 69 (23) :233404-1
[3]   Structure and dynamics of carbon nanoscrolls [J].
Braga, SF ;
Coluci, VR ;
Legoas, SB ;
Giro, R ;
Galvao, DS ;
Baughman, RH .
NANO LETTERS, 2004, 4 (05) :881-884
[4]   EMPIRICAL POTENTIAL FOR HYDROCARBONS FOR USE IN SIMULATING THE CHEMICAL VAPOR-DEPOSITION OF DIAMOND FILMS [J].
BRENNER, DW .
PHYSICAL REVIEW B, 1990, 42 (15) :9458-9471
[5]   A second-generation reactive empirical bond order (REBO) potential energy expression for hydrocarbons [J].
Brenner, DW ;
Shenderova, OA ;
Harrison, JA ;
Stuart, SJ ;
Ni, B ;
Sinnott, SB .
JOURNAL OF PHYSICS-CONDENSED MATTER, 2002, 14 (04) :783-802
[6]   Carbon nanotube bundles under high pressure: Transformation to low-symmetry structures [J].
Chan, SP ;
Yim, WL ;
Gong, XG ;
Liu, ZF .
PHYSICAL REVIEW B, 2003, 68 (07)
[7]   Spontaneous cross linking of small-diameter single-walled carbon nanotubes [J].
Cheng, HS ;
Pez, GP ;
Cooper, AC .
NANO LETTERS, 2003, 3 (05) :585-587
[8]   Crystals of covalently bonded carbon nanotubes: Energetics and electronic structures [J].
Chernozatonskii, L ;
Richter, E ;
Menon, M .
PHYSICAL REVIEW B, 2002, 65 (24) :1-4
[9]   Collapse of single-wall carbon nanotubes is diameter dependent [J].
Elliott, JA ;
Sandler, JKW ;
Windle, AH ;
Young, RJ ;
Shaffer, MSP .
PHYSICAL REVIEW LETTERS, 2004, 92 (09) :095501-1
[10]   Coalescence of double-walled carbon nanotubes: Formation of novel carbon bicables [J].
Endo, M ;
Hayashi, T ;
Muramatsu, H ;
Kim, YA ;
Terrones, H ;
Terrones, M ;
Dresselhaus, MS .
NANO LETTERS, 2004, 4 (08) :1451-1454