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Materials Research

Print version ISSN 1516-1439On-line version ISSN 1980-5373

Abstract

COELHO, Nelize Maria de Almeida; FURTADO, Jomar Livramento Barros; PHAM-HUU, Cuong  and  VIEIRA, Ricardo. Carbon nanofibers: a versatile catalytic support. Mat. Res. [online]. 2008, vol.11, n.3, pp.353-357. ISSN 1516-1439.  https://doi.org/10.1590/S1516-14392008000300020.

The aim of this article is present an overview of the promising results obtained while using carbon nanofibers based composites as catalyst support for different practical applications: hydrazine decomposition, styrene synthesis, direct oxidation of H2S into elementary sulfur and as fuel-cell electrodes. We have also discussed some prospects of the use of these new materials in total combustion of methane and in ammonia decomposition. The macroscopic carbon nanofibers based composites were prepared by the CVD method (Carbon Vapor Deposition) employing a gaseous mixture of hydrogen and ethane. The results showed a high catalytic activity and selectivity in comparison to the traditional catalysts employed in these reactions. The fact was attributed, mainly, to the morphology and the high external surface of the catalyst support.

Keywords : carbon nanofibers; catalyst support; macroscopic shaping.

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