Method for construction of nanotube matrix material

C - Chemistry – Metallurgy – 01 – B

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C01B 31/02 (2006.01) B82B 3/00 (2006.01) H01L 51/30 (2006.01)

Patent

CA 2324405

A method of constructing nanotube matrix ma-terial in a controlled manner wherein, a nanotube frag-ment having at least two potential energy-binding sur-faces including two distinct levels of binding poten-tial energy of H-bonding and a second lower bind-ing potential energy of covalent bonding, are used for binding corresponding nanotube fragments. The method comprises the steps of: (a) bringing a solution of nanotube fragments together; (b) heating the solu-tion to a temperature to disrupt the H-bonding but in-sufficient to denature the covalent bonding; (c) agitat-ing the solution and slowly reducing the temperature (annealing) to a temperature where the H-bondings are stable, producing an optimal configuration; (d) adding a reagent to the solution to cause ring closure; and (e) introducing a catalytic element for purification and dehydrogenation of the nanotube matrix material formed.

L'invention concerne un procédé de construction commandée d'un matériau matriciel à nanotubes. Pour lier des fragments de nanotubes correspondants, on utilise un fragment de nanotube comprenant au moins deux surfaces d'énergie potentielle de liaison comportant deux niveaux distincts d'énergie potentielle de liaison, un de liaison H, et un second, plus bas, de liaison covalente. Ce procédé consiste à (a) regrouper des fragments de nanotubes dans une solution, (b) à chauffer la solution à une température permettant d'interrompre la liaison H, mais insuffisante pour dénaturer la liaison covalente, (c) à agiter la solution et à réduire lentement la température (recuit) à une température où les liaisons H sont stables, de façon à produire une configuration optimale, (d) à ajouter un réactif à la solution pour provoquer une cyclisation, et (e) à introduire un élément catalytique en vue de la purification et de la déshydrogénation du matériau matriciel à nanotubes ainsi formé.

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