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From ceramic–matrix nanocomposites to the synthesis of carbon nanotubes

Coquay, Pierre and Laurent, Christophe and Peigney, Alain and Quénard, Olivier and De Grave, Eddy and Vandenberghe, Robert E. From ceramic–matrix nanocomposites to the synthesis of carbon nanotubes. (2000) Hyperfine Interactions, vol. 130 (n° 1-4). pp. 275-300. ISSN 0304-3843

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Official URL: http://dx.doi.org/10.1023/A:1011062505107

Abstract

The selective reduction in H2 of oxide solid solutions produces nanocomposite powders in which transition metal nanoparticles are dispersed inside and on the surface of the oxide matrix grains. When using a H2/CH4 reducing atmosphere, the metal nanoparticles that form on the surface of the oxide grains act as catalysts for the CH4 decomposition and, because of their small size at high temperatures (>800○C), favor the in-situ nucleation and growth of single-wall and thin multiwall carbon nanotubes. This article reviews our results on the synthesis and characterization of M-MgAl2O4 (M=Fe, Fe/Co, Fe/Ni) nanocomposite powders, without and with carbon nanotubes, emphasizing the information that can be derived from Mössbauer spectroscopy as a complement to other characterization techniques.

Item Type:Article
Additional Information:Thanks to Springer editor. The definitive version is available at http://link.springer.com The original PDF of the article can be found at Hyperfine Interactions website :http://dx.doi.org/10.1023/A:1011062505107
HAL Id:hal-00987135
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - INPT (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UPS (FRANCE)
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Deposited By: cirimat webmestre
Deposited On:17 Mar 2014 12:37

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