Method for producing fullerenes

C - Chemistry – Metallurgy – 01 – B

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C01B 31/00 (2006.01) C01B 31/02 (2006.01)

Patent

CA 2109801

A method for synthesizing fullerenes in flames is provided. Fullerenes are prepared by burning carbon-containing compounds in a flame and collecting the condensibles. The condensible contain the desired fullerenes. Fullerene yields can be optimized and fullerene composition can be selectively varied. Fullerene yields and compositions are determined by selectively controlling flame conditions and parameters such as C/O ratio, pressure, temperature, residence time, diluent concentration and gas velocity.

Présentation d'une méthode de synthèse des fullerènes dans une flamme. Les fullerènes sont préparées en brûlant des composés contenant du carbone dans une flamme et en recueillant les substances condensables. Les substances condensables renferment les fullerènes voulues. La production de fullerènes peut être optimisée, et leur composition peut être modifiée de manière sélective. La production de fullerènes et leur composition sont déterminées en influant sur les conditions et les paramètres de la flamme comme le rapport C/O, la pression, la température, le temps de séjour, la concentration du diluant et la vitesse du gaz.

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