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- W2014209906 abstract "Catalytic activity of iron, cobalt and its mixtures supported on alumina in the formation of carbon nanotubes by the decomposition of acetylene is reported. Two different samples of alumina -ie. Al2O3, prepared from aluminum isopropoxyde and Al2O3 (com), a commercial low BET area sample - are used as supports for the catalysts. The decomposition of the hydrocarbon is carried out at 600 and 700 °C and the effect of flowrate and time of reaction are also studied. All the catalysts were analyzed for their XRD pattern, surface area and porosity. Transmission Electron Microscopy (TEM) is used to follow the formation of carbon nanotubes. All the catalysts were active towards the production of carbon nanotubes at 700 °C, but at 600 °C only the Co-Fe mixtures supported on alumina showed activity. High resolution TEM (HREM) analysis showed that the tubes are multilayered and the number of the layers strongly depends on the Fe content." @default.
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- W2014209906 date "1999-01-01" @default.
- W2014209906 modified "2023-09-24" @default.
- W2014209906 title "Metal mixtures catalysed carbon nanotube synthesis" @default.
- W2014209906 doi "https://doi.org/10.1063/1.59856" @default.
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