Skip to main content Accessibility help
×
Home

On the correlation between CVD growth conditions and crystalline quality and abundance of multi-walled carbon nanotubes

  • M. G. Donato (a1), G. Messina (a1) and S. Santangelo (a1)

Abstract

Multiwalled carbon nanotubes (MWCNTs) were synthesised by chemical vapour deposition (CVD) in a C2H6+H2 atmosphere over 20%Fe/SiO2 catalysts. The influence of synthesis temperature, flow-rate and flow ratio of the reactant gases, the amount of catalyst employed and the catalyst reduction temperature on the abundance and crystalline perfection of product was analysed by scanning electron microscopy, high-resolution transmission electron microscopy and Raman spectroscopy. The changes in yield and crystalline perfection, as monitored by Raman G' band relative intensity, were correlated with the variations of synthesis temperature, the diverse catalyst surface area and H2/C supply ratio attained by varying growth conditions. In the range examined, the lowering of catalyst reduction-temperature turns out to be beneficial for both yield and crystalline perfection of the MWCNTs. All the other growth parameters produce opposite effects so the best compromise has to be sought.

Copyright

Corresponding author

References

Hide All
[1] Carbon nanotubes: synthesis, structure, properties and applications, edited by M.S. Dresselhaus, G. Dresselhaus, P. Avouris, Topics in Applied Physics (Springer-Verlag, Berlin, 2001), Vol. 80
[2] S. Reich, C. Thomsen, J. Maultzsch, Carbon nanotubes (Wiley-VCH, Berlin, 2004)
[3] Understanding carbon nanotubes: from basics to applications, edited by A. Loiseau, P. Launois, P. Petit, S. Roche, J.P. Salvetat, Lecture Notes in Physics (Springer-Verlag, Berlin, 2006), Vol. 677
[4] Jeong, H.J., Kang, K. Ki, Jeong, S.Y., Park, M.H., Yang, C.W., Lee, Y.H., J. Phys. Chem. B 108, 17695 (2004)
[5] Gulino, G., Vieira, R., Amadou, J., Nguyen, P., Ledoux, M.J., Galvagno, S., Centi, G., Pham-Huu, C., Appl. Catal. A 279, 89 (2005)
[6] Donato, M.G., Galvagno, S., Messina, G., Milone, C., Pistone, A., Santangelo, S., Diam. Rel. Mat. 16, 1095 (2007)
[7] M.G. Donato, G. Messina, S. Santangelo, S. Galvagno, C. Milone, A. Pistone, edited by W. Jantsch, F. Schäffler, Conf. Proceed. 893, American Institute of Physics (2007), pp. 1023–1024
[8] Shaijumon, M.M., Ramaprabhu, S., Int. J. Hydr. Energy 30, 311 (2005)
[9] Nerushev, O.A., Morjan, R.E., Ostrovskii, D.I., Sveningsson, M., Jönsson, M., Rohmund, F., Campbell, E.E.B., Physica B 323, 51 (2002)
[10] Dresselhaus, M.S., Dresselhaus, G., Saito, R., Jorio, A., Phys. Reports 409, 47 (2005)
[11] Choi, G.S., Cho, Y.S., Hong, S.Y., Park, J.B., Son, K.H., Kim, D.J., J. Appl. Phys. 91, 3847 (2002)
[12] Yoon, Y.J., Bae, J.C., Baik, H.K., Cho, S.J., Lee, S.J., Song, K.M., Myung, N.S., Chem. Phys. Lett. 366, 109 (2002)
[13] G. Gulino, Ph.D. thesis, University of Messina (Italy) and University Louis Pasteur, Strasbourg, France (2004)
[14] Yu, Z., Chen, D., Tødtal, B., Holmen, A., Catal. Today 100, 261 (2005)
[15] Juang, Z.Y., Lai, J.F., Weng, C.H., Lee, J.H., Lai, H.J., Lai, T.S., Tsai, C.H., Diam. Rel. Mat. 13, 2140 (2004)
[16] C. Kittel, Introduction to solid state physics (Wiley, New York, 1996), Chapter 18, p. 575
[17] Lee, Y.T., Kim, N.S., Park, J., Han, J.B., Choi, Y.S., Ryu, H., Lee, H.J., Chem. Phys. Lett. 372, 853 (2003)
[18] Ci, L., Li, Y., Wei, B., Liang, J., Xu, C., Wu, D., Carbon 38, 1933 (2000)

Keywords

Metrics

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