CARBON NANOTUBE HAVING IMPROVED CRYSTALLIZABILITY

The present invention provides a carbon nanotube which is purified through a method including the steps of: reacting metal remaining in a carbon nanotube with a chorine containing compound at a first temperature in a vacuum or inert atmosphere; chlorinating the remaining metal; and evaporating and r...

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Bibliographische Detailangaben
Hauptverfasser: JANG, Hyung Sik, WOO, Ji Hee, KANG, Kyung Yeon, CHO, Dong Hyun, LEE, Seung Yong
Format: Patent
Sprache:eng ; fre ; kor
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Zusammenfassung:The present invention provides a carbon nanotube which is purified through a method including the steps of: reacting metal remaining in a carbon nanotube with a chorine containing compound at a first temperature in a vacuum or inert atmosphere; chlorinating the remaining metal; and evaporating and removing the chlorinated remaining metal at a second temperature that is higher than the first temperature, wherein a carbon nanotube is provided that has an average value of an intensity ratio (IG/ID) of a G band and a D band, as measured through Raman spectroscopy, that is increased by 20% or more when compared to the carbon nanotube before purification. La présente invention concerne un nanotube de carbone qui est purifié par un procédé comprenant les étapes consistant à : faire réagir du métal restant dans un nanotube de carbone avec un composé contenant du chlore à une première température sous vide ou dans une atmosphère inerte; chlorer le métal restant; et faire évaporer et enlever le métal restant chloré à une deuxième température qui est plus élevée que la première température, un nanotube de carbone étant utilisé qui présente une valeur moyenne d'un rapport d'intensité (IG/ID) d'une bande G et d'une bande D, telle que mesurée par spectroscopie Raman, qui est augmentée de 20 % ou plus par rapport au nanotube de carbone avant purification. 본 발명은 카본나노튜브에 잔류하는 금속을 진공 또는 불활성 분위기에서 제1온도로 염소 함유 화합물과 반응시켜 상기 잔류 금속을 염소화 하고, 상기 제1온도 보다 높은 온도의 제2온도에서 상기 염소화된 잔류 금속을 증발 및 제거하는 단계; 를 포함하는 방법으로 카본나노튜브를 정제함으로써, 정제 전 카본나노튜브에 대비하여 라만 분광법에서 측정된 G밴드와 D밴드의 강도비(IG/ID)의 평균값이 정제 전 카본나노튜브에 대비하여 20% 이상 증가한 카본나노튜브를 제공한다.