Synthesis of carbon nanotubes on FexOy doped Al2O3-ZrO2 nanopowder
Author
Summary, in English
Carbon nanotubes (CNTs) were synthesized on liquid flame sprayed (LFS) powder substrate of iron oxide doped Al2O3-ZrO2. Iron oxide doped Al2O3-ZrO2 nanopowder was produced by injecting the liquid precursor of aluminium-isopropoxide, zirconium-n-propoxide, ferrocene and p-xylene into a high temperature (similar to 3000 K) flame. The precursor solution was atomized by high-velocity H-2 flow and injected into the flame where nanopartides were formed. The collected sample was used as a substrate material for the synthesis of CNTs. The CNTs were formed on the surfaces of the substrate powder by catalyzed decomposition of CH4. The particle morphology, size, phase composition and the nature of CNTs were determined by TEM, FE-SEM, XRD, XPS, Mossbauer and Raman spectroscopy. The collected powder consists of micron-sized agglomerates with nanosized primary particles. Tetragonal zirconia was detected while alumina was amorphous. In the carbonized sample multiwalled CNTs were obtained. (C) 2014 Elsevier B.V. All rights reserved.
Publishing year
2014
Language
English
Pages
106-112
Publication/Series
Powder Technology
Volume
266
Document type
Journal article
Publisher
Elsevier
Topic
- Condensed Matter Physics
Keywords
- Ceramics
- Oxides
- Nanopowder
- Carbon nanotubes
Status
Published
ISBN/ISSN/Other
- ISSN: 0032-5910