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    • 3. 发明授权
    • Method of more simple separation and collection of carbon nanotubes
    • 更简单地分离和收集碳纳米管的方法
    • US08512668B2
    • 2013-08-20
    • US13068842
    • 2010-06-22
    • Takeshi TanakaHiromichi KatauraHuaping Liu
    • Takeshi TanakaHiromichi KatauraHuaping Liu
    • D01F9/12
    • B82Y40/00B82Y30/00C01B32/168
    • To provide a method for separating metallic CNT and semiconducting CNT by treating a CNT-containing gel or a CNT dispersion as combined with a gel, according to a physical separation means to thereby make semiconducting CNT exist in gel and metallic CNT exist in solution, in which the semiconducting CNT adsorbed by gel are collected in a more simplified manner not dissolving the gel.A CNT-containing gel or a CNT dispersion combined with a gel is treated according to a physical separation means of a centrifugal method, a freezing squeezing method, a diffusion method or a permeation method, to thereby make semiconducting CNT exist in gel and metallic CNT exist in solution so that the metallic CNT and the semiconducting CNT are separated from each other, and further, a suitable eluent is made to react on the gel that adsorbs semiconducting CNT to elute the semiconducting CNT from the gel.
    • 为了提供一种通过与凝胶结合处理含CNT凝胶或CNT分散体来分离金属CNT和半导体CNT的方法,根据物理分离手段,由此使凝胶中存在半导体CNT,溶液中存在金属CNT, 其中以更简化的方式收集由凝胶吸附的半导体CNT而不溶解凝胶。 根据离心法,冷冻挤压法,扩散法或渗透法的物理分离方法处理含有凝胶或含有CNT的凝胶或凝胶分散体,从而使凝胶和金属CNT中存在半导体CNT 存在于溶液中,使得金属CNT和半导体CNT彼此分离,此外,使合适的洗脱液在凝胶上反应,吸附半导体CNT以从凝胶中洗脱半导体CNT。
    • 4. 发明申请
    • Method of more simple separation and collection of carbon nanotubes
    • 更简单地分离和收集碳纳米管的方法
    • US20110280791A1
    • 2011-11-17
    • US13068842
    • 2010-06-22
    • Takeshi TanakaHiromichi KatauraHuaping Liu
    • Takeshi TanakaHiromichi KatauraHuaping Liu
    • D01F9/12B82Y40/00
    • B82Y40/00B82Y30/00C01B32/168
    • To provide a method for separating metallic CNT and semiconducting CNT by treating a CNT-containing gel or a CNT dispersion as combined with a gel, according to a physical separation means to thereby make semiconducting CNT exist in gel and metallic CNT exist in solution, in which the semiconducting CNT adsorbed by gel are collected in a more simplified manner not dissolving the gel.A CNT-containing gel or a CNT dispersion combined with a gel is treated according to a physical separation means of a centrifugal method, a freezing squeezing method, a diffusion method or a permeation method, to thereby make semiconducting CNT exist in gel and metallic CNT exist in solution so that the metallic CNT and the semiconducting CNT are separated from each other, and further, a suitable eluent is made to react on the gel that adsorbs semiconducting CNT to elute the semiconducting CNT from the gel.
    • 为了提供一种通过与凝胶结合处理含CNT凝胶或CNT分散体来分离金属CNT和半导体CNT的方法,根据物理分离手段,由此使凝胶中存在半导体CNT,溶液中存在金属CNT, 其中以更简化的方式收集由凝胶吸附的半导体CNT而不溶解凝胶。 根据离心法,冷冻挤压法,扩散法或渗透法的物理分离方法处理含有凝胶或含有CNT的凝胶或凝胶分散体,从而使凝胶和金属CNT中存在半导体CNT 存在于溶液中,使得金属CNT和半导体CNT彼此分离,此外,使合适的洗脱液在凝胶上反应,吸附半导体CNT以从凝胶中洗脱半导体CNT。
    • 10. 发明授权
    • Carbon nanotube dispersed polar organic solvent and method for producing the same
    • 碳纳米管分散极性有机溶剂及其制造方法
    • US07682590B2
    • 2010-03-23
    • US10580809
    • 2004-11-16
    • Youichi SakakibaraMadoka TokumotoOleksiy RozhinHiromichi Kataura
    • Youichi SakakibaraMadoka TokumotoOleksiy RozhinHiromichi Kataura
    • D01F9/12C08L39/06B82B1/00
    • C08J5/005B82Y30/00C08J3/212C08J2339/06C08K7/24C09D139/06C08L39/06
    • In the present invention, a nonionic surfactant is noticed for a function of dispersing a carbon nanotube, and it is found that a mixture solution of an amide-based organic solvent and a polyvinylpyrrolidone (PVP) or of the amide-based organic solvent, the nonionic surfactant, and the polyvinylpyrrolidone (PVP) has an excellent function as a dispersant for the carbon nanotube. Ultrasonication is required for dispersing a carbon nanotube in the dispersant. The ultrasonication may be carried out in the step of dispersing the carbon nanotube in the nonionic surfactant and/or the amide-based polar organic solvent, and then the polyvinylpyrrolidone (PVP) may be mixed with the resultant dispersion. Alternatively, a mixture solution of the nonionic surfactant and/or the amide-based polar organic solvent, and the polyvinylpyrrolidone (PVP) is prepared, and then the ultrasonication may be carried out in the step of dispersing the carbon nanotube therein.
    • 在本发明中,注意到用于分散碳纳米管的功能的非离子表面活性剂,发现酰胺类有机溶剂和聚乙烯吡咯烷酮(PVP)或酰胺类有机溶剂的混合溶液, 非离子表面活性剂和聚乙烯吡咯烷酮(PVP)作为碳纳米管的分散剂具有优异的功能。 将碳纳米管分散在分散剂中需要超声波处理。 可以在将碳纳米管分散在非离子表面活性剂和/或酰胺系极性有机溶剂中进行超声波处理,然后将聚乙烯吡咯烷酮(PVP)与所得分散体混合。 或者,制备非离子表面活性剂和/或酰胺类极性有机溶剂和聚乙烯吡咯烷酮(PVP)的混合溶液,然后在分散碳纳米管的步骤中进行超声波处理。