Carbon-based fine structure array, aggregate of carbon-based fine structures, use thereof and method for preparation thereof
AssigneesTechnology Research Institute of Osaka Prefecture, Taiyo Nippon Sanso Corporation, Otsuka Chemical Co., Ltd., Nissin Electric Co., Ltd., Public University Corporation, Osaka Prefecture University
InventorsYoshikazu Nakayama, Toshikazu Nosaka, Osamu Suekane, Takeshi Nagasaka, Toshiki Goto, Hiroyuki Tsuchiya, Keisuke Shiono
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Abstract
An aggregate of carbon-based fine structures in which a plurality of carbon-based fine structures are collected, wherein respective carbon-based fine structures are oriented in the same direction. The above aggregate of carbon-based fine structures is an aggregate of a plurality of carbon-based fine structures in a state they are pulled by one another with strong interaction, and has such a length that allows the improvement of the handleability and workability thereof.
Claims22
An aggregate of carbon-based microstructures in which carbon nanotubes are assembled together,
- wherein the carbon nanotubes are aligned in one direction, and are assembled (i) along the direction of alignment so as to form a rope-like structure having a length of not shorter than 20 cm by bundling filamentous structures, each of which is formed by bundling the carbon nanotubes, and (ii) in a direction orthogonal to the direction of alignment so as to form a sheet-like structure,
- the carbon nanotubes are surrounded by an amorphous carbon layer whose thickness is no greater than 10% of a diameter of the carbon nanotubes,
- the carbon nanotubes each have a diameter of 10 nm through 20 nm,
- the carbon nanotubes are formed by a catalyst chemical vapor deposition method, using gas in which a proportion of concentration of a source gas for forming the carbon nanotubes is no less than 23% of a total concentration, and
- the aggregate has a Young's modulus of not less than 0.8 TPa.
An aggregate of carbon-based microstructures in which carbon nanotubes are assembled together,
- wherein the carbon nanotubes are aligned in one direction and are assembled together along the direction of alignment so as to form a rope-like structure having a length of not shorter than 20 cm by bundling filamentous structures, each of which is formed by bundling the carbon nanotubes,
- the carbon nanotubes are surrounded by an amorphous carbon layer whose thickness is no greater than 10% of a diameter of the carbon nanotubes,
- the carbon nanotubes each have a diameter of 10 nm through 20 nm,
- the carbon nanotubes are formed by a catalyst chemical vapor deposition method, using gas in which a proportion of concentration of a source gas for forming the carbon nanotubes is no less than 23% of a total concentration, and
- the aggregate has a Young's modulus of not less than 0.8 TPa.
Dependencies are inferred from the claim text.