Catalytic synthesis of carbon nanotubes on clay minerals (Journal article)

Gournis, D./ Karakassides, M. A./ Bakas, T./ Boukos, N./ Petridis, D.

Novel clay-carbon tube composites were synthesized by catalytic decomposition of acetylene over iron-catalyst centers supported on montmorillonite surfaces by ion-exchange. TEM and SEM micrographs show the growth of carbon tubes rooted to the clay surfaces, while the iron-nanoparticles (which catalyze the formation of carbon-nanotubes) are detected and characterized by Mossbauer spectroscopy, mainly as ferromagnetic cementite (Fe3C). In the hybrid materials the clay retains its exchange properties making possible the preparation of clay-carbon nanotube derivatives that are valuable for various technological applications. (C) 2002 Elsevier Science Ltd. All rights reserved.
Institution and School/Department of submitter: Πανεπιστήμιο Ιωαννίνων. Σχολή Θετικών Επιστημών. Τμήμα Μηχανικών Επιστήμης Υλικών
Keywords: carbon nanotubes,catalyst support,electron microscopy,mossbauer spectroscopy,intercalation reactions,layered silicate nanocomposites,polymer,nanoparticles,mossbauer,pyrolysis,carbides,fe
ISSN: 0008-6223
Link: <Go to ISI>://000178851300012
Publisher: Pergamon-Elsevier
Appears in Collections:Άρθρα σε επιστημονικά περιοδικά ( Ανοικτά)

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