The Fe(CO)5 catalyzed pyrolysis of pentane:: carbon nanotube and carbon nanoball formation

被引:76
作者
Liu, XY [1 ]
Huang, BC [1 ]
Coville, NJ [1 ]
机构
[1] Univ Witwatersrand, Sch Chem, Inst Mol Sci, ZA-2050 Wits, South Africa
基金
新加坡国家研究基金会;
关键词
carbon nanotubes; Raman spectroscopy; transmission electron microscopy; scanning electron microscopy;
D O I
10.1016/S0008-6223(02)00193-8
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
The Fe(CO)(5) catalyzed pyrolysis of pentane was investigated. The study, performed in a quartz tube, revealed that a range of carbonaceous materials could be formed with products determined by the temperature profile in the tube, the Fe(CO)(5) content in pentane, the carrier gas flow rate, the pyrolysis temperature and the pyrolysis time. The distribution of carbonaceous products also depends on the competition of the pyrolysis of Fe(CO)(5) and pentane in the different regions of the reactor. Carbonaceous materials produced included graphite film, carbon nanotubes and carbon nanoballs. The formation of carbon nanotubes takes place in a region in the quartz tube where both the pyrolysis of both Fe(CO)(5) and pentane occur, with carbon nanotubes formed by the pyrolysis of pentane. Alignment of carbon nanotubes was found when a high Fe(CO)(5) concentration was used. (C) 2002 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码:2791 / 2799
页数:9
相关论文
共 28 条
[1]  
BRIFFO PJ, 2000, NATURE, V406, P586
[2]   STRUCTURE AND VIBRATIONAL PROPERTIES OF CARBON TUBULES [J].
CHANDRABHAS, N ;
SOOD, AK ;
SUNDARARAMAN, D ;
RAJU, S ;
RAGHUNATHAN, VS ;
RAO, GVN ;
SASTRY, VS ;
RADHAKRISHNAN, TSR ;
HARIHARAN, Y ;
BHARATHI, A ;
SUNDAR, CS .
PRAMANA-JOURNAL OF PHYSICS, 1994, 42 (05) :375-385
[3]   Carbon nanotubes synthesized by Ni-assisted atmospheric pressure thermal chemical vapor deposition [J].
Choi, GS ;
Cho, YS ;
Hong, SY ;
Park, JB ;
Son, KH ;
Kim, DJ .
JOURNAL OF APPLIED PHYSICS, 2002, 91 (06) :3847-3854
[4]   Nanotube nanodevice [J].
Collins, PG ;
Zettl, A ;
Bando, H ;
Thess, A ;
Smalley, RE .
SCIENCE, 1997, 278 (5335) :100-103
[5]   A CARBON NANOTUBE FIELD-EMISSION ELECTRON SOURCE [J].
DEHEER, WA ;
CHATELAIN, A ;
UGARTE, D .
SCIENCE, 1995, 270 (5239) :1179-1180
[6]   Storage of hydrogen in single-walled carbon nanotubes [J].
Dillon, AC ;
Jones, KM ;
Bekkedahl, TA ;
Kiang, CH ;
Bethune, DS ;
Heben, MJ .
NATURE, 1997, 386 (6623) :377-379
[7]  
Dresselhaus M. S. G., 1988, SPRINGER SERIES MAT, V5
[8]   Phonons in carbon nanotubes [J].
Dresselhaus, MS ;
Eklund, PC .
ADVANCES IN PHYSICS, 2000, 49 (06) :705-814
[9]   The world's smallest gas cylinders? [J].
Gadd, GE ;
Blackford, M ;
Moricca, S ;
Webb, N ;
Evans, PJ ;
Smith, AN ;
Jacobsen, G ;
Leung, S ;
Day, A ;
Hua, Q .
SCIENCE, 1997, 277 (5328) :933-936
[10]   Carbon nanospheres and tubules obtained by the pyrolysis of hydrocarbons [J].
Govindaraj, A ;
Sen, R ;
Nagaraju, BV ;
Rao, CNR .
PHILOSOPHICAL MAGAZINE LETTERS, 1997, 76 (05) :363-367