Chemical vapor deposition of multi-walled carbon nanotubes from nickel/yttria-stabilized zirconia catalysts

A. S. Ferlauto*, D. Z. De Florio, F. C. Fonseca, V. Esposito, R. Muccillo, Enrico Traversa, L. O. Ladeira

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

25 Scopus citations

Abstract

Multi-walled carbon nanotubes (MWNT) were produced by chemical vapor deposition using yttria-stabilized zirconia/nickel (YSZ/Ni) catalysts. The catalysts were obtained by a liquid mixture technique that resulted in fine dispersed nanoparticles of NiO supported in the YSZ matrix. High quality MWNT having smooth walls, few defects, and low amounts of by-products such as amorphous carbon were obtained, even from catalysts with large Ni concentrations (>50wt.∈%). By adjusting the experimental parameters, such as flux of the carbon precursor (ethylene) and Ni concentration, both the MWNT morphology and the process yield could be controlled. The resulting YSZ/Ni/MWNT composites can be interesting due to their mixed ionic-electronic transport properties, which could be useful in electrochemical applications.

Original languageEnglish (US)
Pages (from-to)271-276
Number of pages6
JournalApplied Physics A: Materials Science and Processing
Volume84
Issue number3
DOIs
StatePublished - Aug 1 2006

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Science(all)

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