Dominant Formation of the Carbon Nanocoils at Low Temperature


Article Preview

The single helix type carbon nanocoils were formed under the low temperature (550°C) condition. For the formation of the carbon nanocoils, C2H2 was used as a source gas and SF6 was used as an additive gas under the thermal chemical vapor deposition system. The morphologies of as-grown carbon materials at the low temperature (550°C) and the mass ratios of product/catalyst were investigated according to the ratio of C2H2/ SF6 flow and the injection times of SF6 and C2H2 flows. The conversion efficiency from the carbon source gas (C2H2) to the as-grown carbon materials was estimated using the mass ratios of product/catalyst. The sample having the ratio of C2H2/SF6 flow = 50 had the highest conversion efficiency. For the dominant formation of the single helix type CNCs, the optimal ratio of C2H2/SF6 flow was determined to be around 10. As the growth aspect of the single helix type CNCs under the optimal ratio of C2H2/SF6 flow, the formation of the CNCs was understood to be initiated within the reaction time of 5min after the formation of the carbon nanofilaments. The detailed growth mode of the CNCs was proposed.



Edited by:

Prof. Seungho Hong




D. C. Kim and S. H. Kim, "Dominant Formation of the Carbon Nanocoils at Low Temperature", Key Engineering Materials, Vol. 744, pp. 446-452, 2017

Online since:

July 2017




* - Corresponding Author

[1] S. Amelinckx, X. B. Zhang, D. Bernaerts, X. F. Zhang, V. Ivanov, J. B. Nagy, A formation mechanism for catalytically grown helix-shaped graphite nanotubes, Sci. 265 (1994) 635–639.


[2] K. Hernadi, L. Thien-Nga, L. Forro, Growth and microstructure of catalytically produced coiled carbon nanotubes, J. Phys. Chem. B 105 (2001) 12464–12468.

[3] N. M. Rodriguez, A. Chambers, R. Terry, K. Baker, Catalytic engineering of carbon nanostructures, Langmuir, 11 (1995) 3862–3866.

[4] A. Shaikjee, N. J. Coville, The synthesis, properties and uses of carbon materials with helical morphology, J. Adv. Res. 3 (2012) 195–223.

[5] S. Motojima, S. Hoshiya, Y. Hishikawa, Electromagnetic wave absorption properties of carbon microcoils/PMMA composite beads in W bands, Carbon 41 (2003) 2658–2660.

[6] D. L. Zhao, Z. M. Shen, Preparation and microwave absorption properties of carbon nanocoils, Mater. Lett. 62 (2008) 3704–3706.

[7] R. T. K. Baker, G. R. Gadsby, R. B. Thomas, R. J. Waite, The production and properties of filamentous carbon, Carbon, 13 (1975) 211–214.


[8] K. T. Lau, M. Lu, D. Hui, Coiled carbon nanotubes: synthesis and their potential applications in advanced composite structures, Composites, B37 (2006) 437–448.


[9] X. Qi, C. Qin, W. Zhong, C. Au, X. Ye, Y. Du, Large-scale synthesis of carbon nanomaterials by catalytic chemical vapor deposition: a review of the effects of synthesis parameters and magnetic properties, Materials, 3 (2010) 4142–4174.

[10] E. F. Kukovitsky, S. G. Lvov, N. A. Sainov, V. A. Shustov, L. A. Chernozatonski, Correlation between metal catalyst particle size and carbon nanotube growth, Chem. Phys. Lett. 355(5-6) (2002) 497–503.


[11] M. S. Kim, N. M. Rodriguez, R. T. K. Baker, The interaction of hydrocarbons with copper nickel and nickel in the formation of carbon filaments, J. Catal. 131(1) (1991) 60–73.

[12] K. D. Kim, S. H. Kim, S. S. Yi, K. Jang, Effect of SF6 incorporation in the cyclic process on the low temperature deposition of carbon nanofilaments, Thin Solid Films 518(22) (2010) 6412–6416.

[13] S. An, S. H. Kim, Low temperature synthesis of the carbon micro-materials, to be published in Key Engineering Materials (2016).

[14] M. Kawaguchi, K. Nozaki, S. Motojima, H. Iwanaga, A growth mechanism of regularly coiled carbon fibers through acetylene pyrolysis, J. Cryst. Growth 118(3-4) (1992) 309–313.


[15] J. H. Xia, X. Jiang, C. L. Jia, C. Dong, Hexahedral nanocementites catalyzing the growth of carbon nanohelices, Appl. Phys. Lett. 92 (2008) 0631211–0631213.

[16] D. W. Li, L. J. Pan, D. P. Liu, N. S. Yu, Relationship between geometric structures of catalyst particles and growth of carbon nanocoils, Chem. Vap. Depos, 16 (2010) 166–169.

[17] S. Park, Y. C. Jeon, S. H. Kim, Effect of injection stage of SF6 flow on carbon microcoils formation, ECS J. Solid. State. Sci. Technol. 2 (11) (2013) M56–M59.

Fetching data from Crossref.
This may take some time to load.