Carbon materials reacted with diazonium salts

C - Chemistry – Metallurgy – 09 – C

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C09C 1/44 (2006.01) C04B 35/52 (2006.01) C09C 1/46 (2006.01) C09C 1/56 (2006.01) C09C 3/08 (2006.01) C09D 5/02 (2006.01) C09D 7/00 (2006.01) C09D 11/00 (2006.01) C09D 11/02 (2006.01) C09D 11/18 (2006.01) D01F 11/14 (2006.01)

Patent

CA 2207475

Processes for preparing a carbon product having an organic group attached to a carbon material. The carbon material is selected from graphite powder, a graphite fiber, a carbon fiber, a carbon cloth, a vitreous carbon product, and an activated carbon product. In one process at least one diazonium salt reacts with a carbon material in the absence of an externally applied electric current sufficient to reduce the diazonium salt. In another process at least one diazonium salt reacts with a carbon material in a profit reaction medium.

Procédés de préparation d'un produit au carbone dans lequel un groupe organique est attaché à une matière au carbone. Cette matière au carbone est sélectionnée entre de la poudre de graphite, une fibre de graphite, une fibre de carbone, un tissu au carbone, un produit au carbone vitreux et un produit au charbon actif. Selon un premier procédé au moins un sel diazoïque réagit avec une matière au carbone et l'absence d'un courant électrique appliqué de manière externe suffisamment puissant pour réduire le sel diazoïque. Selon un deuxième procédé au moins un sel diazoïque réagit avec une matière au carbone dans un milieu de réaction protique.

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