KR101088372B1 - 탄소 나노튜브 미립자, 조성물 및 이의 용도 - Google Patents
탄소 나노튜브 미립자, 조성물 및 이의 용도 Download PDFInfo
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- KR101088372B1 KR101088372B1 KR1020047011696A KR20047011696A KR101088372B1 KR 101088372 B1 KR101088372 B1 KR 101088372B1 KR 1020047011696 A KR1020047011696 A KR 1020047011696A KR 20047011696 A KR20047011696 A KR 20047011696A KR 101088372 B1 KR101088372 B1 KR 101088372B1
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- carbon nanotube
- carbon nanotubes
- carbon
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Abstract
Description
폴리카보네이트에서 탄소 나노튜브의 적하(wt%) | 탄소 나노튜브 미립자의 전도성(S/㎝) | HIPCO SWNT의 전도성(S/㎝) |
0.5 | 8.14 x 10-4 | 1.46 x 10-7 |
1.0 | 5.09 x 10-3 | 3.84 x 10-4 |
5.0 | 9.64 x 10-2 | 4.52 x 10-2 |
폴리카보네이트에서 탄소 나노튜브의 적하(wt%) | 탄소 나노튜브 미립자의 전도성(S/㎝) | 탄소 FIBRIL 나노튜브의 전도성(S/㎝) |
0.5 | 7.87 x 10-4 | 없음 |
1.0 | 6.51 x 10-3 | 3.96 x 10-7 |
2.5 | 2.86 x 10-2 | 2.08 x 10-3 |
5.0 | 9.14 x 10-2 | 8.52 x 10-2 |
Claims (119)
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- 표면에 탄소 나노튜브 미립자를 포함하는 전자 방출전극에 있어서, 탄소 나노튜브 미립자는 얽힌 소직경 탄소 나노튜브로 구성되고, 소직경 나노튜브는 0.5 ㎚ 내지 3 ㎚ 범위의 외부 직경을 갖고, 탄소 나노튜브 미립자는 0.1 마이크론 내지 100 마이크론 범위의 횡단 치수를 갖는 것을 특징으로 하는 전자 방출전극.
- 제 97 항에 있어서, 탄소 나노튜브 미립자는 0.1 마이크론 내지 3 마이크론 범위의 횡단 치수를 갖는 것을 특징으로 하는 전자 방출전극.
- 제 97 항에 있어서, 탄소 나노튜브는 단일-벽 탄소 나노튜브, 이중-벽 탄소 나노튜브, 삼중-벽 탄소 나노튜브, 사중-벽 탄소 나노튜브, 이들의 조합에서 선택되는 것을 특징으로 하는 전자 방출전극.
- 제 97 항에 있어서, 탄소 나노튜브 미립자는 탄소 나노튜브의 로프를 구성하는 것을 특징으로 하는 전자 방출전극.
- 제 100 항에 있어서, 로프는 10 ㎚ 내지 50 ㎚ 범위의 횡단 치수를 갖는 것을 특징으로 하는 전자 방출전극.
- 제 100 항에 있어서, 로프는 10 ㎚ 미만의 횡단 치수를 갖는 것을 특징으로 하는 전자 방출전극.
- 제 97 항에 있어서, 탄소 나노튜브 미립자는 탄소 나노튜브 미립자의 표면적 ㎛2당 10개 이상의 소직경 탄소 나노튜브를 보유하는 것을 특징으로 하는 전자 방출전극.
- 제 97 항에 있어서, 표면에서 탄소 나노튜브 미립자는 식각(etching)에 의해 활성화되는 것을 특징으로 하는 전자 방출전극.
- 제 97 항에 있어서, 전자 방출전극은 전계 방출 소자의 음극에서 한 요소인 것을 특징으로 하는 전자 방출전극.
- 제 105 항에 있어서, 전계 방출 소자는 전자 튜브, 증폭기, 발진기, 혼합기, 마이크로웨이브 요소, 방전 개시장치, 레이저 튜브, 방전 간격, 조절 방전 튜브, 지향 에너지 소자, 디스플레이 튜브, 평면 디스플레이, 이들의 조합에서 선택되는 것을 특징으로 하는 전자 방출전극.
- 탄소 나노튜브 전자 방출전극을 제조하는 방법에 있어서, 아래의 단계로 구성되는 것을 특징으로 하는 방법:(a) 탄소 나노튜브 미립자를 제공하는 단계, 여기서 탄소 나노튜브 미립자는 얽힌 소직경 탄소 나노튜브로 구성되고, 소직경 나노튜브는 0.5 ㎚ 내지 3 ㎚ 범위의 외부 직경을 갖고, 탄소 나노튜브는 단일-벽 탄소 나노튜브, 이중-벽 탄소 나노튜브, 삼중-벽 탄소 나노튜브, 사중-벽 탄소 나노튜브, 이들의 조합에서 선택되고, 탄소 나노튜브 미립자는 0.1 마이크론 내지 100 마이크론 범위의 횡단 치수를 갖는다;(b) 탄소 나노튜브 미립자를 표면에 증착하는 단계.
- 제 107 항에 있어서, 탄소 나노튜브 미립자는 0.1 마이크론 내지 3 마이크론 범위의 횡단 치수를 갖는 것을 특징으로 하는 방법.
- 제 107 항에 있어서, 탄소 나노튜브 미립자의 탄소 나노튜브를 활성화시키는 단계가 추가로 포함되는 것을 특징으로 하는 방법.
- 제 109 항에 있어서, 활성화는 식각 수단으로 실시하는 것을 특징으로 하는 방법.
- 제 110 항에 있어서, 식각 수단은 화학적 식각, 전기화학적 식각, 물리적 식각, 이들의 조합에서 선택되는 것을 특징으로 하는 방법.
- 제 110 항에 있어서, 식각 수단은 화학적 식각으로 구성되는 것을 특징으로 하는 방법.
- 제 112 항에 있어서, 화학적 식각은 산화 식각, 강산에 의한 식각, 강염기에 의한 식각, 이들의 조합에서 선택되는 방법으로 실시하는 것을 특징으로 하는 방법.
- 제 110 항에 있어서, 식각 수단은 스퍼터링(sputtering), 활성화 이온 식각, 플라스마 식각, 이들의 조합에서 선택되는 것을 특징으로 하는 방법.
- 제 107 항에 있어서, 탄소 나노튜브 미립자는 가열 냉각된 탄소 나노튜브 미립자인 것을 특징으로 하는 방법.
- 제 106 항에 있어서, 가열 냉각된 탄소 나노튜브 미립자는 1 내지 24 시간동안 800℃ 내지 1500℃ 온도에서 질소 또는 불활성 가스 환경에서 탄소 나노튜브 미립자를 가열하여 제조하는 것을 특징으로 하는 방법.
- 제 107 항에 있어서, 복수의 탄소 나노튜브 미립자는 열가소성 중합체, 열경화성 중합체, 금속, 세라믹, 이들의 조합에서 선택되는 매트릭스 물질과 혼합하는 것을 특징으로 하는 방법.
- 제 107 항에 있어서, 복수의 탄소 나노튜브 미립자는 중합체로 구성되는 매트릭스 물질과 혼합하는 것을 특징으로 하는 방법.
- 제 107 항에 있어서, 표면에 탄소 나노튜브 미립자의 증착은 탄소 나노튜브 페이스트를 형성하는 점성 매체에 미립자를 분산시키고; 스크린 프린팅, 진기영동 증착, 주조(casting), 잉크-젯 프린팅, 분무, 오프셋 프린팅, 이들의 조합에서 선 택되는 방법으로 표면에 상기 페이스트를 증착시켜 실시하는 것을 특징으로 하는 방법.
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US6683783B1 (en) * | 1997-03-07 | 2004-01-27 | William Marsh Rice University | Carbon fibers formed from single-wall carbon nanotubes |
US6250984B1 (en) * | 1999-01-25 | 2001-06-26 | Agere Systems Guardian Corp. | Article comprising enhanced nanotube emitter structure and process for fabricating article |
AUPP976499A0 (en) * | 1999-04-16 | 1999-05-06 | Commonwealth Scientific And Industrial Research Organisation | Multilayer carbon nanotube films |
US6333016B1 (en) * | 1999-06-02 | 2001-12-25 | The Board Of Regents Of The University Of Oklahoma | Method of producing carbon nanotubes |
ATE514804T1 (de) * | 1999-07-21 | 2011-07-15 | Hyperion Catalysis Int | Verfahren zur oxidation von mehrwandigen kohlenstoffnanoröhren |
US6465132B1 (en) * | 1999-07-22 | 2002-10-15 | Agere Systems Guardian Corp. | Article comprising small diameter nanowires and method for making the same |
US6882094B2 (en) * | 2000-02-16 | 2005-04-19 | Fullerene International Corporation | Diamond/diamond-like carbon coated nanotube structures for efficient electron field emission |
US6413487B1 (en) * | 2000-06-02 | 2002-07-02 | The Board Of Regents Of The University Of Oklahoma | Method and apparatus for producing carbon nanotubes |
US6949877B2 (en) * | 2001-03-27 | 2005-09-27 | General Electric Company | Electron emitter including carbon nanotubes and its application in gas discharge devices |
WO2002095097A1 (en) * | 2001-05-21 | 2002-11-28 | Trustees Of Boston College, The | Varied morphology carbon nanotubes and methods for their manufacture |
CN1141250C (zh) * | 2001-05-25 | 2004-03-10 | 清华大学 | 一种流化床连续化制备碳纳米管的方法及其反应装置 |
WO2003037792A1 (en) | 2001-10-31 | 2003-05-08 | National University Of Singapore | Large-scale synthesis of single-walled carbon nanotubes by group viiib catalysts promoted by group vib metals |
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US20050002851A1 (en) | 2005-01-06 |
KR20050072056A (ko) | 2005-07-08 |
US20100254886A1 (en) | 2010-10-07 |
EP1463685B1 (en) | 2014-01-08 |
EP1463685A1 (en) | 2004-10-06 |
AU2003291133A1 (en) | 2004-06-18 |
US7811542B1 (en) | 2010-10-12 |
US20040150312A1 (en) | 2004-08-05 |
JP2006505483A (ja) | 2006-02-16 |
WO2004048263A1 (en) | 2004-06-10 |
JP2006261131A (ja) | 2006-09-28 |
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