Skip to main content Accessibility help

Purity and Solubility of Nanotubes in Arc Discharge Carbon Powder

  • Jonathan N. Coleman (a1), Alan B. Dalton (a1), Brendan McCarthy (a1), Robert C. Barklie (a1) and Werner J. Blau (a1)...


We have described a novel experimental technique to separate nanotubes from other unwanted carbon species in arc generated carbon soot. A conjugated polymer was used to bind to nanotubes in solution. The resultant hybrid was soluble while extraneous carbon material formed a sediment at the bottom of the sample bottle. This process was monitored using electron paramagnetic resonance (EPR) which showed that 63% of nanotubes were kept in solution while 98.1% of impurities were rejected. This allowed the calculation of the nanotube content in the carbon soot using EPR and thermo-gravitational analysis (TGA) yielding a purity value of 34% for the soot used in this study. This is compatible with estimates made using electron microscopy.



Hide All
[1] Iijima, S, Nature, 354, 56 (1991)
[2] Dresselhaus, MS, Dresselhaus, G, Eklund, PC, Science of Fullerenes and Carbon Nanotubes (Academic Press, 1995)
[3] Tans, SJ, Verschueren, ARM, Dekker, C, Nature, 393, 49 (1998)
[4] Hu, J, Ouyang, M, Yang, P, CM, Lieber, Nature, 399, 48 (1999)
[5] Li, J, Cassell, AM, Dai, H, Surface and Interface Analysis, 28, 8 (1999)
[6] Wagner, P et al. , Journal of Structural Biology, 119, 18 (1997)
[7] Balavoine, F et al. , Biology of the Cell, 90, 283 (1998)
[8] Britto, PJ, Santhanam, KSV, Ajayan, PM, Biochemistry and Bioenergetics, 1996, 41, 121
[9] Bandow, S, J. Appl. Phys. 80, 1020 (1996)
[10] Holzer, W, Penzkofer, A, Gong, S H, Bleyer, A, Bradley, D D C, Adv. Mat. 8, 974 (1996)
[11] Krätschmer, W, Lamb, L D, Fostiropoulos, K, Huffman, D R, Nature (London) 347, 354 (1990)
[12] Chauvet, O, Forro, L, Bacsa, W, Ugarte, D, Doudin, B, Heer, W A de, Phys. Rev. B. 52 R6963 (1995)
[13] Araki, H, Matsuoka, R, Yoshino, K, Fukuda, M, Mizogami, S, J. Appl. Phys. 69, 7244 (1991)


Full text views

Total number of HTML views: 0
Total number of PDF views: 0 *
Loading metrics...

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed