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1. WO2015128457 - METHOD FOR PREPARING A SUSPENSION CONTAINING CARBON NANOTUBES AND STABLE SUSPENSION OBTAINED IN THIS WAY

Publication Number WO/2015/128457
Publication Date 03.09.2015
International Application No. PCT/EP2015/054123
International Filing Date 27.02.2015
IPC
C01B 31/02 2006.1
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF
31Carbon; Compounds thereof
02Preparation of carbon; Purification
CPC
C01B 2202/02
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; ; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
2202Structure or properties of carbon nanotubes
02Single-walled nanotubes
C01B 2202/06
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; ; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
2202Structure or properties of carbon nanotubes
06Multi-walled nanotubes
C01B 2202/34
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; ; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
2202Structure or properties of carbon nanotubes
20Nanotubes characterized by their properties
34Length
C01B 32/174
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; ; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
32Carbon; Compounds thereof
15Nano-sized carbon materials
158Carbon nanotubes
168After-treatment
174Derivatisation; Solubilisation; Dispersion in solvents
C09K 23/00
Applicants
  • COMMISSARIAT À L'ÉNERGIE ATOMIQUE ET AUX ÉNERGIES ALTERNATIVES [FR]/[FR]
Inventors
  • DEBSKI, Nicolas
  • MAYNE-L'HERMITE, Martine
  • PINAULT, Mathieu
Agents
  • BREVALEX
Priority Data
145165628.02.2014FR
Publication Language French (fr)
Filing Language French (FR)
Designated States
Title
(EN) METHOD FOR PREPARING A SUSPENSION CONTAINING CARBON NANOTUBES AND STABLE SUSPENSION OBTAINED IN THIS WAY
(FR) PROCÉDÉ DE PRÉPARATION D'UNE SUSPENSION CONTENANT DES NANOTUBES DE CARBONE ET SUSPENSION STABLE AINSI OBTENUE
Abstract
(EN) The present invention concerns a method for preparing a suspension of carbon nanotubes in an aqueous solution comprising the following successive steps consisting of subjecting an aqueous solution containing carbon nanotubes and a surfactant to at least one cycle of freezing in liquid nitrogen and thawing; and subjecting said thawed solution to an ultrasound treatment. The present invention also concerns a suspension of carbon nanotubes, and in particular a suspension of long carbon nanotubes, that can be prepared by such a method.
(FR) La présente invention concerne un procédé de préparation d'une suspension de nanotubes de carbone dans une solution aqueuse comprenant les étapes successives suivantes consistant à soumettre une solution aqueuse contenant des nanotubes de carbone et un tensioactif à au moins un cycle de congélation dans l'azote liquide et de décongélation; et soumettre ladite solution décongelée à un traitement aux ultrasons. La présente invention concerne également une suspension de nanotubes de carbone, et notamment une suspension de nanotubes de carbone longs, susceptible d'être préparée par un tel procédé.
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