JP2007519594A - 金属性単層カーボンナノチューブを半導体性単層カーボンナノチューブから分離する方法 - Google Patents
金属性単層カーボンナノチューブを半導体性単層カーボンナノチューブから分離する方法 Download PDFInfo
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- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
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- C01B32/15—Nano-sized carbon materials
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y30/00—Nanotechnology for materials or surface science, e.g. nanocomposites
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y40/00—Manufacture or treatment of nanostructures
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B2202/00—Structure or properties of carbon nanotubes
- C01B2202/02—Single-walled nanotubes
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- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B2202/00—Structure or properties of carbon nanotubes
- C01B2202/20—Nanotubes characterized by their properties
- C01B2202/22—Electronic properties
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S977/00—Nanotechnology
- Y10S977/70—Nanostructure
- Y10S977/734—Fullerenes, i.e. graphene-based structures, such as nanohorns, nanococoons, nanoscrolls or fullerene-like structures, e.g. WS2 or MoS2 chalcogenide nanotubes, planar C3N4, etc.
- Y10S977/742—Carbon nanotubes, CNTs
- Y10S977/75—Single-walled
- Y10S977/751—Single-walled with specified chirality and/or electrical conductivity
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y10S977/00—Nanotechnology
- Y10S977/84—Manufacture, treatment, or detection of nanostructure
- Y10S977/842—Manufacture, treatment, or detection of nanostructure for carbon nanotubes or fullerenes
- Y10S977/845—Purification or separation of fullerenes or nanotubes
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Abstract
Description
Claims (23)
- 半導体性単層カーボンナノチューブおよび金属性単層カーボンナノチューブを含むサンプルを準備すること、
前記サンプルを、幾何的に平面状の部分を有し、前記平面状部分上に1つまたは複数のπ電子を含む、溶媒に可溶性の分離剤と一緒にすること、
前記分離剤を前記サンプル中の半導体性単層カーボンナノチューブと結合させて複合体を形成すること、
前記溶媒を前記サンプルと一緒にすること、および
前記複合体を前記溶媒に可溶化させて、可溶化した複合体を含む液体と固体とを含む混合物を形成することを特徴とする方法。 - 前記混合物を遠心分離し、固体を回収することを更に含むことを特徴とする請求項1に記載の方法。
- 前記回収した固体を前記サンプルとして使用して、前記方法を繰り返すことを更に含むことを特徴とする請求項2に記載の方法。
- 前記方法の繰り返し後に回収した固体が、少なくとも約90%の金属性単層ナノチューブを含むことを特徴とする請求項3に記載の方法。
- 前記分離剤が、平面状炭化水素であることを特徴とする請求項1に記載の方法。
- 前記分離剤が、ポルフィリン、ピレン、およびポリベンゼノイド炭化水素から成る群から選択されることを特徴とする請求項5に記載の方法。
- 前記分離剤が、1つまたは複数の炭化水素鎖を更に含むことを特徴とする請求項1に記載の方法。
- 前記1つまたは複数の炭化水素鎖が、炭素約16個以上の長さであることを特徴とする請求項7に記載の方法。
- 前記固体が、少なくとも約50重量%の金属性単層ナノカーボンを含むことを特徴とする請求項1に記載の方法。
- 前記可溶化した複合体を含む液体を回収することを更に含むことを特徴とする請求項1に記載の方法。
- 前記半導体性単層ナノチューブが溶液から出てくるように、分離剤と半導体性単層ナノチューブの結合を解離することを更に含むことを特徴とする請求項10に記載の方法。
- 前記不溶性半導体性単層ナノチューブを回収することを更に含むことを特徴とする請求項11に記載の方法。
- 前記分離剤と前記半導体性単層ナノチューブとの結合を、前記複合体を酸中で洗浄することにより解離することを特徴とする請求項11に記載の方法。
- 前記分離剤と前記半導体性単層ナノチューブとの結合を、前記複合体を約500℃の温度でアニールすることにより解離することを特徴とする請求項11に記載の方法。
- 前記サンプルを、前処理することを特徴とする請求項1に記載の方法。
- 半導体性単層カーボンナノチューブおよび金属性単層カーボンナノチューブを含むサンプルを準備すること、
前記サンプルを、1つまたは複数の炭化水素鎖を含む遊離塩基ポルフィリンと一緒にすること、
前記ポルフィリンを前記半導体性単層カーボンナノチューブと結合させて複合体を形成させること、
前記サンプルに有機溶媒を添加すること、および
前記有機溶媒中の前記複合体を可溶化させて、可溶化した複合体を含む液体と不溶性金属性単層カーボンナノチューブを含む固体との混合物を形成することを含むことを特徴とする方法。 - 前記混合物を遠心分離し、固体を回収することを更に含むことを特徴とする請求項16に記載の方法。
- 回収した固体をサンプルとして使用して、前記方法を繰り返すことを更に含むことを特徴とする請求項17に記載の方法。
- 前記固体中の金属性単層ナノチューブと半導体性単層ナノチューブの比が、サンプル中の金属性単層ナノチューブと半導体性単層ナノチューブの比の少なくとも1.5倍であることを特徴とする請求項16に記載の方法。
- 前記可溶化複合体を含む液体を回収することを更に含むことを特徴とする請求項16に記載の方法。
- 前記分離剤と前記半導体性単層ナノチューブの間の結合を解離して、半導体性単層ナノチューブを含む固体残渣を形成することを更に含むことを特徴とする請求項20に記載の方法。
- 前記固体残渣が、少なくとも90重量%の半導体性単層ナノチューブを含むことを特徴とする請求項21に記載の方法。
- 前記分離剤が、5,10,15,20−テトラキス(ヘキサデシルオキシフェニル)21H,23H−ポルフィンであることを特徴とする請求項16に記載の方法。
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US53079603P | 2003-12-18 | 2003-12-18 | |
PCT/US2004/042412 WO2005069789A2 (en) | 2003-12-18 | 2004-12-16 | Process for separating metallic from semiconducting single-walled carbon nanotubes |
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JP (1) | JP2007519594A (ja) |
WO (1) | WO2005069789A2 (ja) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008531460A (ja) * | 2005-03-04 | 2008-08-14 | ノースウェスタン ユニバーシティ | 密度勾配によるカーボンナノチューブの分離 |
KR101015409B1 (ko) * | 2008-08-18 | 2011-02-22 | 금오공과대학교 산학협력단 | 단일벽 탄소 나노튜브-포르피린 복합체 및 그 제조방법 |
WO2011132850A2 (ko) * | 2010-04-21 | 2011-10-27 | 연세대학교 산학협력단 | 탄소나노튜브의 분리방법 |
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WO2005069789A2 (en) | 2005-08-04 |
US7374685B2 (en) | 2008-05-20 |
US20060054555A1 (en) | 2006-03-16 |
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