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Carbon nanotubes prepared in situ in a cellular ceramic by the gelcasting-foam method

Rul, Sébastien and Laurent, Christophe and Peigney, Alain and Rousset, Abel Carbon nanotubes prepared in situ in a cellular ceramic by the gelcasting-foam method. (2003) Journal of the European Ceramic Society, 23 (8). 1233-1241. ISSN 0955-2219

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Official URL: http://dx.doi.org/10.1016/S0955-2219(02)00286-8

Abstract

The synthesis of carbon nanotubes from an oxide solid solution foam is reported for the first time. A foam of Mg0.9Co0.1Al2O4 solid solution is prepared by the gelcasting-foam method using notably mono- and di-functional acrylate monomers. Using a surfactant in the alkylpolyglucoside family allows to prevent structure changes in the foam before the onset of polymerisation. The wet ceramic foam is dried in air, producing a foam with an open porosity. Total porosity is equal to about 98% and the diameter of the pores is in the range 25–300 mm, about 90% being smaller than 200 mm. The Mg0.9Co0.1Al2O4 foam is reduced in H2–CH4 atmosphere, giving rise to a CNTs–Co MgAl2O4 composite foam. Using the foam instead of the corresponding powder allows a fourfold increase in the production of carbon nanotubes, more than 95% of which have only 1 (70%) or 2 walls.

Item Type:Article
Additional Information:Thanks to Elsevier editor. The definitive version is available at http://www.sciencedirect.com The original PDF of the article can be found at the Journal of the European Ceramic Society website : http://www.sciencedirect.com/science/article/pii/S0955221902002868
HAL Id:hal-00949855
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:16 Dec 2013 14:29

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