Pyrolytic synthesis of carbon nanostructures on Ni, Co, Fe/MCM-41 catalysts
Katok, K.V., Tertykh, V.A., Brichka, S.Ya and Prikhod'ko, G.P. (2006) Pyrolytic synthesis of carbon nanostructures on Ni, Co, Fe/MCM-41 catalysts Materials Chemistry and Physics, 93 (2-3). pp. 396-401. ISSN 0254-0584
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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.
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