Comparative study of the catalytic growth of patterned carbon nanotube films

Details Comparative study of the catalytic growth of patterned carbon nanotube films Comparative study of the catalytic growth of patterned carbon nanotube films

2005-08-03

arxiv.org/abs/cond-mat/0508112v2

Surface Science 492 (2001) 195

Physics

Condensed Matter

Materials Science

5 pages, 5 figures

Scientific paper

10.1016/S0039-6028(01)01435-2

Three different catalysts (Fe, Ni, Co nitrates dissolved in ethanol) were patterned on a SiO2/Si substrate and multi-wall carbon nanotubes were grown by catalytic decomposition of acetylene. We compare the growth of the carbon nanostructures in the temperature range between 580C and 1000C. With our experimental set-up the catalyst solutions of cobalt and nickel were found to be less efficient than the one of iron. An optimal production of multi-wall nanotubes was observed at temperatures between 650C and 720C with the iron solution as catalyst. We found a tendency towards thicker structures with higher temperatures. Finally, we suggest a mechanism for the growth of these carbon structures.

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