Abstract
Abstract Pyrolytic decomposition of acetylene over 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. Reduction of the supported metal-containing compounds was carried out in hydrogen or acetylene atmosphere. Acetylene is used not only as a source of carbon in synthesis of the nanostructures but also as a reagent capable of reducing metal ions in the surface chemical compounds. Formation of carbon nanotubes and nanofibers is shown to depend on the pyrolysis conditions.
| Original language | English |
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| Pages (from-to) | 109-114 |
| Number of pages | 6 |
| Journal | Journal of Thermal Analysis and Calorimetry |
| Volume | 86 |
| Issue number | 1 |
| Publication status | Published - 2006 |