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. 2010 Nov 1;3(11):4871–4891. doi: 10.3390/ma3114871

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© 2010 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution license (http://creativecommons.org/licenses/by/3.0/).

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Evolution of the partial pressure of CO and H₂O, as well as the mass of carbon nanotubes produced as a function of growth temperature. Catalyst applied is Fe₂Co supported by Nb₂O₅. At 500 °C, a transition occurs for both parameters, as well as for the mass of the carbon nanotubes produced.