Directed flow method and system for bulk separation of...

C - Chemistry – Metallurgy – 01 – B

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C01B 31/00 (2006.01)

Patent

CA 2537833

A method for bulk separation of single-walled tubular fullerenes (100) based on helicity is provided wherein a solution or suspension of the single~ walled tubular fullerenes (100) is flowed onto a crystalline or highly oriented substrate (30). The single-walled tubular fullerenes (100) that flow onto the substrate (30) have a respective longitudinal axis that is aligned with the flow direction (105). The direction of flow (105) is oriented at a predetermined angle with respect to a lattice axis (24) of the substrate (30) for energetically favoring adsorption of a respective plurality of single- walled fullerenes (100) having a tubular contour and a selected helicity. Subsequently, the adsorbed single-walled tubular fullerenes (100) of the selected chirality are removed from the substrate (30).

L'invention concerne un procédé de séparation en masse de fullerènes tubulaires à paroi simple (100) en fonction de l'hélicité. Une solution ou une suspension de fullerènes tubulaires à paroi simple (100) s'écoule sur un substrat (30) cristallin ou fortement orienté. Les fullerènes tubulaires à paroi simple (100) qui s'écoulent sur ledit substrat (30) ont un axe longitudinal correspondant aligné dans le sens de l'écoulement (105). Ce sens d'écoulement (105) est orienté suivant un angle prédéterminé par rapport à un axe de grille (24) du substrat (30), ce qui favorise de manière énergétique l'adsorption d'une pluralité correspondante de fullerènes à paroi simple (100) présentant un contour tubulaire et une hélicité choisie. Par la suite, les fullerènes tubulaires à paroi simple (100) de la chiralité choisie sont évacués du substrat (30).

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