KR20130006607A - 카본나노튜브의 분리 회수 방법 및 카본나노튜브 - Google Patents
카본나노튜브의 분리 회수 방법 및 카본나노튜브 Download PDFInfo
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Abstract
Description
도 2a는 분리 시료의 광 흡수 스펙트럼(HiPco-CNT)이다.
도 2b는 분리 시료의 광 흡수 스펙트럼(HiPco-CNT)이다.
도 2c는 분리 시료의 라만 스펙트럼(HiPco-CNT)이다.
도 3은 분리 시료의 사진(HiPco-CNT)이다.
도 4a는 형광 스펙트럼 측정의 결과(HiPco-CNT, 분리 전의 프랙션)이다. 여기 파장(세로축)에 대한 형광 파장(가로축)의 형광 강도를 등고선도로 나타내고 있다. 색이 짙은 배경에 대하여 밝게 보이는 스팟, 색이 더 짙게 보이는 스팟의 색의 농도 순으로 강도가 강해지는 것을 나타내고 있다(도면 우측의 스케일을 참조). 주요한 스팟에는 옆에 카이랄 지수를 나타내고 있다.
도 4b는 형광 스펙트럼 측정의 결과(HiPco-CNT, 분리 후의 프랙션)이다. 여기 파장(세로축)에 대한 형광 파장(가로축)의 형광 강도를 등고선도로 나타내고 있다. 색이 짙은 배경에 대하여 밝게 보이는 스팟, 색이 더 짙게 보이는 스팟의 색의 농도 순으로 강도가 강해지는 것을 나타내고 있다(도면 우측의 스케일을 참조). 주요한 스팟에는 옆에 카이랄 지수를 나타내고 있다.
도 5는 분리 시료의 광 흡수 스펙트럼(CoMoCAT-CNT)이다.
도 6a는 형광 스펙트럼 측정의 결과(미분리 시료, CoMoCAT-CNT)이다.
도 6b는 형광 스펙트럼 측정의 결과(분리 시료, CoMoCAT-CNT)이다.
도 7은 분리 시료의 사진(CoMoCAT-CNT)이다.
도 8a는 직렬 컬럼에 의해 분리된 CNT의 키랄성의 순번과 카이랄각을 플롯한 결과이다.
도 8b는 직렬 컬럼에 의해 분리된 CNT의 키랄성의 순번과 직경을 플롯한 결과이다.
도 8c는 직렬 컬럼에 의해 분리된 CNT의 키랄성의 순번과 국소 곡률 반경을 플롯한 결과이다.
Claims (10)
- 컬럼에 충전한 겔에 대하여 과잉량의 카본나노튜브 분산액을 작용시켜서 겔에 대하여 흡착력이 강한 카본나노튜브를 상기 겔에 흡착시키고, 상기 겔에 대하여 흡착력이 약한 미흡착 카본나노튜브를 포함하는 용액과 카본나노튜브를 흡착시킨 겔을 분리하고, 또한 상기 분리 후의 겔에 용출액을 작용시킴으로써 겔에 흡착된 카본나노튜브를 인출하는 것을 특징으로 하는 카본나노튜브의 분리 회수 방법.
- 컬럼을 n단 직렬로 해서 구비하고(n≥2, n은 자연수), 제 1 단째의 컬럼에 충전한 겔에 대하여 과잉량의 카본나노튜브 분산액을 작용시키고, 제 n 단째의 컬럼의 겔에 카본나노튜브가 흡착될 때까지 제 1 단째의 컬럼에 카본나노튜브 분산액을 작용시킴으로써 n단의 각 컬럼의 겔에 흡착된 1번째부터 n번째까지의 흡착력이 강한 카본나노튜브와, 모든 컬럼의 겔에 흡착되지 않은 흡착력이 약한 카본나노튜브를 포함하는 용액을 분리하고, 또한 각 컬럼에 개별적으로 용출액을 작용시킴으로써 각 컬럼의 겔에 흡착된 n종류의 흡착력이 다른 카본나노튜브를 인출하는 것을 특징으로 하는 카본나노튜브의 분리 회수 방법.
- 제 1 항 또는 제 2 항에 있어서,
상기 겔에 대하여 과잉량의 카본나노튜브 분산액이란 컬럼에 충전된 겔이 흡착할 수 있는 카본나노튜브의 양을 초과하는 양의 카본나노튜브를 포함하는 분산액인 것을 특징으로 하는 카본나노튜브의 분리 회수 방법. - 제 1 항 또는 제 2 항에 있어서,
분리 후의 겔로부터 흡착력이 강한 특정 구조를 갖는 반도체형 카본나노튜브를 인출하는 것을 특징으로 하는 카본나노튜브의 분리 회수 방법. - 제 4 항에 있어서,
분리 후의 겔로부터 특정 구조로서 특정 직경을 갖는 반도체형 카본나노튜브를 인출하는 것을 특징으로 하는 카본나노튜브의 분리 회수 방법. - 제 4 항에 있어서,
분리 후의 겔로부터 특정 구조로서 특정 키랄성을 갖는 반도체형 카본나노튜브를 인출하는 것을 특징으로 하는 카본나노튜브의 분리 회수 방법. - 제 4 항에 있어서,
분리 후의 겔로부터 특정 구조로서 특정 국소 곡률 반경을 갖는 반도체형 카본나노튜브를 인출하는 것을 특징으로 하는 카본나노튜브의 분리 회수 방법. - 제 2 항에 있어서,
상기 제 n 단째의 컬럼에 충전한 겔에 작용시키는 카본나노튜브 분산액의 농도를 상기 제 n-1 단째의 컬럼에 충전한 겔에 작용시키는 카본나노튜브 분산액의 농도보다 낮게 한 것을 특징으로 하는 카본나노튜브의 분리 회수 방법. - 제 1 항 또는 제 2 항에 기재된 컬럼에 충전한 겔에 대하여 과잉량의 카본나노튜브 분산액을 작용시켜서 얻어지는 것을 특징으로 하는 겔에 대하여 흡착력이 강한 카본나노튜브.
- 제 1 항 또는 제 2 항에 기재된 카본나노튜브의 분리 회수 방법에 의해 얻어지는 것을 특징으로 하는 겔에 흡착되지 않는 카본나노튜브.
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