ISSN print edition: 0366-6352 ISSN electronic edition: 1336-9075 Registr. No.: MK SR 9/7 Published monthly

Effect of time on the metal-support (Fe-MgO) interaction in CVD synthesis of single-walled carbon nanotubes

Anna Steplewska, Ewa Borowiak-Palen, and Ryszard J. Kalenczuk

Centre of Knowledge Based Nanomaterials and Technologies, Institute of Chemical Engineering and Chemical Technology, West Pomeranian University of Technology, Pułaskiego St. 10, 70 322 Szczecin, Poland

E-mail: asteplewska@zut.edu.pl

Received: 29 June 2009  Revised: 25 September 2009  Accepted: 14 October 2009

Abstract: A study on the effect of the metal-support interaction by employing iron particles supported on magnesium oxide (MgO) nanopowder in an alcohol-CVD process for single-walled carbon nanotubes growth is presented. Upon the prolongation of the process time, three main observations were detected: (i) decrease of the mean nanotubes diameter, (ii) reduction of the diameter distribution by the factor of two, (iii) increase of relative purity of the samples.

Keywords: chemical vapor deposition - carbon nanotubes - Raman spectroscopy - high-resolution transmission electron microscope

Full paper is available at www.springerlink.com.

DOI: 10.2478/s11696-009-0111-x

Chemical Papers 64 (2) 255–260 (2010)