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Nanocarbon material dispersion, method for producing the same, and nanocarbon material structure

A technology of carbon nanomaterials and dispersion liquids, applied in nanocarbon, nanotechnology, nanotechnology, etc., can solve problems such as damage to the inherent characteristics of single-layer carbon nanotubes

Inactive Publication Date: 2011-01-12
THE UNIV OF TOKYO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, if such a strong treatment is applied, the intrinsic properties of single-walled carbon nanotubes are compromised

Method used

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  • Nanocarbon material dispersion, method for producing the same, and nanocarbon material structure
  • Nanocarbon material dispersion, method for producing the same, and nanocarbon material structure
  • Nanocarbon material dispersion, method for producing the same, and nanocarbon material structure

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preparation example Construction

[0074] The preparation method of the carbon nanomaterial dispersion liquid of the present invention is characterized in that it comprises: the step of mixing the carbon nanomaterial and the dispersion medium containing the triphenylene derivative with dual affinity to prepare the composition; and performing physical Distributed processing steps.

[0075] First, carbon nanotubes are preferably used as the carbon nanomaterial. Carbon nanotubes are tubular carbon structures having a large aspect ratio with a fiber diameter (thickness) D of about 0.5 to 100 nm, a length L of about 0.1 to 100,000 μm, and an L / D of about 20 to 100,000,000. The carbon nanotubes can be prepared by methods such as arc discharge method, laser evaporation method and catalytic chemical vapor deposition method. Details of the production method are described in works such as "Basics of Carbon Nanotubes" (Corona Corporation) by Yahachi Saito and Shunji Itto.

[0076] There are two types of carbon nanotubes...

Embodiment

[0128] Hereinafter, the present invention will be described in more detail with examples. However, the present invention is not limited to the following examples.

[0129] (processing device and analysis device)

[0130]Ultrasonic treatment was carried out using 5510 (180W, 420kHz) manufactured by Brunson. The ultracentrifugation treatment was carried out using CS120GX (S100AT6 angle rotor attachment) manufactured by Hitachi Koki. The absorbance was measured using UV-3150 manufactured by Shimadzu Corporation. The emission spectrum analysis was carried out using SPEX Fluorolog-3 (a liquid nitrogen cooled InGaAs near-infrared detector accessory) manufactured by Horiba. The slit width in the emission spectrometry is 10 nm / 10 nm at the excitation end / emission end, respectively, and the measurement step is 5 nm.

[0131] (TP-CO 2 Synthesis of H)

[0132] A triphenylene derivative having a carboxyl group as a hydrophilic group (TP-CO 2 h)

[0133] Under argon, 2,3,6,7,10,11-...

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Abstract

Disclosed is a method for producing a nanocarbon material dispersion wherein individual nanocarbon members are separated from each other by mild processing. The method for producing a nanocarbon material dispersion is characterized by comprising a step of preparing a composition by mixing a nanocarbon material with a dispersion medium containing an amphiphilic triphenylene derivative, and a step of subjecting the composition to a mechanical dispersing process.

Description

[0001] Cross References to Related Applications [0002] This application claims priority from Patent Application No. 2008-033640 filed in Japan on February 14, 2008, the entire contents of which are hereby incorporated by reference. technical field [0003] The invention relates to a carbon nano material dispersion liquid, a preparation method thereof and a carbon nano material structure. Background technique [0004] The development of a simple method for dispersing carbon nanotubes plays an extremely important role in the utilization of carbon nanotubes in various fields and detailed understanding of the physical properties of carbon nanotubes. In particular, it is important for single-walled carbon nanotubes (SWNTs) with interesting electrical properties that exhibit metallic or semiconducting properties depending on the chiral index (n, m). [0005] However, carbon nanotubes are easily condensed into bundles or ropes due to strong van der Waals attraction, which hinder...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B31/02
CPCC01B31/0206B82Y40/00C01B31/0273B82Y30/00C01B32/15C01B32/174
Inventor 加藤大丸山茂夫相田卓三福岛孝典山本竜広宫内雄平
Owner THE UNIV OF TOKYO