Abstract
Pyrolytic decomposition of acetylene on the surface of nickel-, cobalt-, and iron-containing ordered mesoporous MCM-41 silicas has been studied. Catalytically active matrices have been prepared by chemisorption of volatile metal acetylacetonate complexes on the silica surface. Acetylene is used not only as a source of carbon in synthesis of the nanostructures but also as a reagent reducing metal ions in the surface chemical compounds. Formation of carbon nanotubes and nanowires is shown to depend on the pyrolysis conditions.
Original language | English |
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Pages (from-to) | 396-401 |
Number of pages | 6 |
Journal | Materials Chemistry and Physics |
Volume | 93 |
Issue number | 2-3 |
Publication status | Published - 2006 |
Keywords
- Nanostructures
- Chemical vapor deposition (CVD)
- Transmission electron microscopy
- Chemisorption