C - Chemistry – Metallurgy – 01 – B
Patent
C - Chemistry, Metallurgy
01
B
C01B 31/02 (2006.01) B01J 23/745 (2006.01) B01J 35/02 (2006.01) B01J 37/02 (2006.01)
Patent
CA 2455086
The invention relates to a method for the selective production of ordered carbon nanotubes by decomposition of a carbon source in the gaseous state in contact with at least one solid catalyst, said catalyst taking the form of metallic particles borne by carrier grains. The catalyst grains are adapted so as to be able to form a fluidised bed containing between 1 % and 5 % by weight of metallic particles having average dimensions of between 1nm and 10nm. The decomposition takes place in a fluidised bed of catalyst grains. The invention can be used to obtain pure nanotubes with predetermined dimensions in a high yield.
L'invention concerne un procédé de fabrication sélective de nanotubes de carbone ordonné par décomposition d'une source de carbone à l'état gazeux au contact d'au moins un catalyseur solide sous forme de particules métalliques portées par des grains de support, les grains de catalyseur étant adaptés pour pouvoir former un lit fluidisé contenant entre 1% et 5% en poids de particules métalliques de dimensions moyennes comprises entre 1nm et 10nm. La décomposition est effectuée dans un lit fluidisé des grains de catalyseur. L'invention permet d'obtenir des nanotubes de dimensions prédéterminées, purs et avec de forts rendements.
Feurer Roselyne
Kalck Philippe Joseph
Serp Philippe Gilles
Vahlas Constantin
Arkema France
Institut National Polytechnique de Toulouse
Mcfadden Fincham
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