JP5474955B2 - ナノチューブを分散および分離する方法 - Google Patents
ナノチューブを分散および分離する方法 Download PDFInfo
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- 238000000034 method Methods 0.000 title claims description 70
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- 239000002184 metal Substances 0.000 claims description 36
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 32
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- 150000001412 amines Chemical class 0.000 claims description 17
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- 229910052784 alkaline earth metal Inorganic materials 0.000 claims description 3
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- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
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- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
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- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 1
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- WEGDVNIPLOLRJC-UHFFFAOYSA-M sodium;naphthalene-1-carboxylate Chemical compound [Na+].C1=CC=C2C(C(=O)[O-])=CC=CC2=C1 WEGDVNIPLOLRJC-UHFFFAOYSA-M 0.000 description 1
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- B82Y30/00—Nanotechnology for materials or surface science, e.g. nanocomposites
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Description
ITOの代替物:
インジウムスズ酸化物は、ディスプレイおよび太陽光発電において使用する透明導電電極として広く使用されている。SWNTの薄いフィルムは、無彩色の代替物を提供する。もし金属性のSWNTを選択することができれば、透過/伝導性のバランスはITOに勝る可能性がある。
半導体のシングルウォールナノチューブの電子的な性質および寸法は、半導体産業におけるムーアの法則を推進する経路を示唆する。半導体のナノチューブに基づく個々の機器は群を抜いて高速で小型であることを示しているが、現時点では、例えば、バンドギャップ(半径)のばらつきのために限定されている。多数のデバイスを統合することは依然として困難ではあるが、魅力的である。初期の応用は高感度の固体センサーの開発である。
その伝導性と組み合わせた金属性のSWNT(それぞれの原子は表面に位置する)の高表面積は、電気化学的二重層スーパーキャパシターとしての素晴らしい能力(200F/gを超える群を抜いた容量が既に記録されている)を提供する。スーパーキャパシターは電子工学および輸送での応用における携帯用電池の能力を急激に向上させる可能性がある。
これらの一次元的な電子的な構造、(バリスティック伝導)および安定性により、金属性のシングルウォールカーボンナノチューブは従来の金属よりも4倍まで大きな規模で電流密度を保持することができる。回路の寸法は縮小し続けているので、これらはしたがって従来の金属化の代替候補である。
個々の金属性のシングルウォールカーボンナノチューブは、ダイヤモンドすら上回る、既知の中で最も高い熱伝導度を有することが示されている。
製品の混合物から触媒粒子および他の炭素粒子を除去し、純粋なSWNTを残すこと。
ナノチューブを異なる型に選別すること。より詳細には、ナノチューブは特定のキラリティーおよび直径、またはカーボンナノチューブの半導体もしくは金属性のチューブのいずれかへのより幅広い分離のいずれかに選別される必要がある。
特定の型のチューブの規則配列にナノチューブを整列すること。
Claims (33)
- ナノチューブと、金属およびアンモニアまたはアミン溶媒を含む電子液体とを接触させることを含む、ナノチューブを分散させる方法であって、個々のナノチューブの溶液が製造される、方法。
- 前記溶液中の前記ナノチューブが損傷されておらずまた官能化されていない、請求項1に記載の方法。
- 前記ナノチューブがカーボンナノチューブである、請求項1または2に記載の方法。
- 前記金属がアルカリ金属およびアルカリ土類金属からなる群より選択される、請求項1〜3のいずれか一項に記載の方法。
- 前記金属がアルカリ金属である、請求項1〜4のいずれか一項に記載の方法。
- 前記アミンがアンモニアである、請求項1〜5のいずれか一項に記載の方法。
- 前記電子液体が接触する前記ナノチューブ中の炭素原子に対する前記電子液体中の金属原子の比率が1:4以下であるような量で前記金属が前記電子液体中に含まれる、請求項1〜6のいずれか一項に記載の方法。
- 前記方法により生成された前記ナノチューブ溶液中の分離された個々のナノチューブの濃度が0.1mgml−1以上である、請求項1〜7のいずれか一項に記載の方法。
- 前記分散されたナノチューブを分離する工程をさらに含む、請求項1〜8のいずれか一項に記載の方法。
- 前記分散されたナノチューブが電子特性に基づいて分離される、請求項9に記載の方法。
- 前記分散されたナノチューブがサイズに基づいて分離される、請求項9に記載の方法。
- 前記分散されたナノチューブがヘリシティに基づいて分離される、請求項9に記載の方法。
- 前記分散されたナノチューブが、前記電子液体が接触する前記ナノチューブ中の炭素原子に対する前記電子液体中の金属原子の比率の制御により分離される、請求項9〜12のいずれか一項に記載の方法。
- 前記分散されたナノチューブが選択的に電荷消去される、請求項9〜12のいずれか一項に記載の方法。
- 前記分散されたナノチューブが電荷消去剤の添加により分離される、請求項14に記載の方法。
- 前記電荷消去剤が、酸素、水、アルコール、プロトン性溶媒、およびハロゲンからなる群から選択される、請求項15に記載の方法。
- 前記電荷消去剤がヨウ素を含む、請求項16に記載の方法。
- 前記分散されたナノチューブが電気化学的に電荷消去される、請求項9〜12のいずれか一項に記載の方法。
- 前記分散されたナノチューブがクロマトグラフ技法により分離される、請求項11に記載の方法。
- 精製されたもしくは分画されたナノチューブを提供するために、前記電子液体を除去するステップをさらに含む、請求項1〜19のいずれか一項に記載の方法。
- 前記の分散されたナノチューブを溶媒に移送するステップをさらに含む、請求項1〜20のいずれか一項に記載の方法。
- 前記ナノチューブと電子液体とを接触させた後、電子液体を除去して、ナノチューブの塩を生成し、それを乾燥溶媒に移送する、請求項1〜19のいずれか一項に記載の方法。
- 前記溶媒が乾燥した有機溶媒である、請求項21または22に記載の方法。
- 前記溶媒がDMFまたはNMPである、請求項23に記載の方法。
- 前記ナノチューブがシングルウォールナノチューブである、請求項1〜24のいずれか一項に記載の方法。
- 分離された個々のナノチューブの溶液を製造するための、金属およびアンモニアまたはアミンを含む電子液体の使用。
- 請求項1〜25のいずれか一項に記載の方法により得ることができるナノチューブの溶液。
- 0.1mgml −1 以上の濃度の個々のナノチューブおよび溶媒を含む、分散されたナノチューブの溶液。
- 前記ナノチューブがカーボンナノチューブである、請求項28に記載の溶液。
- 前記ナノチューブがシングルウォールナノチューブである、請求項29に記載の溶液。
- 前記溶媒がNMPまたはDMFである、請求項28〜30のいずれか一項に記載の溶液。
- 精製されたかまたは分画されたナノチューブを生成するための開始材料としての、請求項28〜31のいずれか一項に記載の分散されたナノチューブの溶液の使用。
- 請求項28〜31のいずれか一項に記載の分散されたナノチューブの溶液から堆積させた、結晶が100nm以上の厚さを有する、ナノチューブの最密配列を含むナノチューブ結晶。
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JP5854462B2 (ja) * | 2010-12-24 | 2016-02-09 | 公立大学法人首都大学東京 | 単層カーボンナノチューブの結晶作製方法 |
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DE102012004132A1 (de) | 2012-02-29 | 2013-08-29 | Friedrich-Schiller-Universität Jena | Kohlenstoffmonoxid freisetzende Materialien und deren Verwendung |
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