Title:
METHOD FOR PURIFICATION OF CARBON NANOTUBES
Document Type and Number:
WIPO Patent Application WO/2017/039132
Kind Code:
A1
Abstract:
The present invention provides a method for purification of carbon nanotubes comprising a step of reacting metal remaining in carbon nanotubes with a chlorine-containing compound at a first temperature in a vacuum or inert atmosphere so as to chlorinate the residual metal, and evaporating and removing the chlorinated residual metal at a second temperature higher than the first temperature. The purification method according to the present invention can provide a purification method that does not cause physical damage or shape deformation of carbon nanotubes, by purifying the carbon nanotubes in a manner of evaporating a chlorinated metal.
Inventors:
KANG KYUNG YEON (KR)
WOO JIHEE (KR)
CHO DONG HYUN (KR)
KIM UK YEONG (KR)
LEE SEUNGYONG (KR)
JANG HYUNGSIK (KR)
WOO JIHEE (KR)
CHO DONG HYUN (KR)
KIM UK YEONG (KR)
LEE SEUNGYONG (KR)
JANG HYUNGSIK (KR)
Application Number:
PCT/KR2016/006740
Publication Date:
March 09, 2017
Filing Date:
June 24, 2016
Export Citation:
Assignee:
LG CHEMICAL LTD (KR)
International Classes:
B01J23/22; B01J23/26; B01J23/28; B01J23/75
Foreign References:
| CN104401963A | 2015-03-11 | |||
| JP5424481B2 | 2014-02-26 | |||
| JP2006306636A | 2006-11-09 |
Other References:
BARKAUSKAS, J. ET AL.: "A Novel Purification Method of Carbon Nanotubes by High -temperature Treatment with Tetrachloromethane", SEPARATION AND PURIFICATION TECHNOLOGY, vol. 71, no. 3, 2010, pages 331 - 336, XP026913710
ZIMMERMAN, JOHN L. ET AL.: "Gas-phase Purification of Single-wall Carbon Nano Tubes", CHEMISTRY OF MATERIALS, vol. 12, no. 5, 2000, pages 1361 - 1366, XP000946235
ZIMMERMAN, JOHN L. ET AL.: "Gas-phase Purification of Single-wall Carbon Nano Tubes", CHEMISTRY OF MATERIALS, vol. 12, no. 5, 2000, pages 1361 - 1366, XP000946235
Attorney, Agent or Firm:
KIM, Aera (KR)
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