Carbon material and method for manufacturing same

A manufacturing method and technology of carbon materials, applied in the direction of chemical instruments and methods, nano-carbon, carbon compounds, etc., can solve the problems of adding new functions, complicated manufacturing conditions, etc., and achieve the effect of excellent electron transfer

Active Publication Date: 2019-02-05
TOHOKU UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, it is necessary to control the size and crystal structure of carbon nanotubes containing boron atoms to manufacture, and it is complicated to control various manufacturing conditions.
In addition, for example, carbon nanotubes whose fu

Method used

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  • Carbon material and method for manufacturing same
  • Carbon material and method for manufacturing same
  • Carbon material and method for manufacturing same

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Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0049] Embodiment 1 of the present invention will be described below. figure 1 It is an explanatory drawing for explaining the manufacturing method of the carbon material concerning Embodiment 1 of this invention. figure 2 It is an explanatory diagram showing a production process when a nitrogen-containing carbon material is used as a raw material in the production method of the carbon material according to the first embodiment.

[0050] Such as figure 1 and figure 2 As shown, the carbon material related to Embodiment 1 can be produced by the following production method, which includes at least the following steps: the process of subjecting the surface of the carbon material as a raw material to fluorination treatment; the carbon material after the fluorination treatment A process of boriding and / or phosphating.

[0051] Examples of the carbon material as the raw material include carbon materials having a carbon skeleton composed of carbon atoms, preferably carbon materia...

Embodiment approach 2

[0087] The method for producing a carbon material according to Embodiment 2 of the present invention will be described below.

[0088] The method for producing a carbon material according to Embodiment 2 is different in that after the fluorination treatment step, and before the boridation treatment and / or phosphating treatment, the carbon material after the fluorination treatment is subjected to nitriding treatment.

[0089] The step of performing the nitriding treatment is a step of introducing nitrogen atoms into the carbon material in the gas phase by bringing a nitriding treatment gas containing at least a nitrogen-containing gas into contact with the carbon material after the fluoridation treatment. In this step, the form of introduction of nitrogen atoms into the carbon material can be changed according to the treatment temperature (details will be described later).

[0090] The nitriding gas is not particularly limited as long as it contains a nitrogen-containing gas, a...

Embodiment 1

[0106] Single-walled carbon nanotubes (10 mg) were introduced into a PTFE (polytetrafluoroethylene) container (capacity 5 mL), and the container was placed in an electropolished SUS316L chamber (capacity 30 mL). Furthermore, the indoor vacuum was replaced with nitrogen, and the temperature was raised to 250° C. at 4° C. / min under a nitrogen flow (20 mL / min), and a constant temperature treatment was performed for 2 hours.

[0107] Next, the vacuum was replaced with a fluorinated treatment gas diluted with nitrogen to 20 vol % of fluorine gas, and flowed in the chamber at a flow rate of 25 mL / min. Furthermore, the temperature in the chamber was raised to 250° C. at 4° C. / min, and a fluorination treatment was performed for 4 hours. Thereafter, the vacuum in the chamber was replaced with nitrogen, and the chamber was naturally cooled to room temperature under a nitrogen flow (20 mL / min), and the fluorinated single-walled carbon nanotubes were taken out.

[0108] Next, the fluorin...

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Abstract

Provided are: a carbon material which has boron atoms and/or phosphorus atoms with their characteristic structures and functions intact introduced into a carbon material such as carbon nanotubes; anda method for manufacturing the carbon material. This carbon material has boron atoms and/or phosphorus atoms introduced to a proportion of the carbon atoms that constitute the carbon material, and ismanufactured by the method for manufacturing the carbon material, the method including: a step of bringing into contact a fluorination processing gas that includes a fluorine-containing gas with the carbon material to perform fluorination processing on the surface of the carbon material; and a step of bringing into contact a boronizing gas that includes a boron-containing gas with the carbon material after the fluorination processing to boronize the carbon material and/or bringing into contact a phosphorizing gas that includes a phosphorus-containing gas with the carbon material after the fluorination processing to phosphorize the carbon material.

Description

technical field [0001] The present invention relates to a carbon material and a method for producing the same, and more specifically, to a carbon material in which boron atoms and / or phosphorus atoms are introduced into a carbon material having a carbon skeleton composed of carbon atoms, such as carbon nanotubes. and methods of manufacture thereof. Background technique [0002] Single-walled carbon nanotubes (Single-Walled Carbon Nanotubes: SWCNTs) are made only by sp 2 Hollow cylindrical substances composed of hybridized carbon atoms are expected to be applied to various energy devices or electronic devices due to their high conductivity and excellent carrier transport properties. In recent years, boron atom-containing carbon nanotubes having improved electrical conductivity or thermal conductivity obtained by introducing boron atoms into such single-walled carbon nanotubes have been proposed. [0003] Examples of methods for introducing boron atoms into carbon nanotubes ...

Claims

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Application Information

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IPC IPC(8): C01B32/168C01B32/159H01M4/88H01M4/90
CPCC01B32/168C01B32/159H01M4/96C01B32/15C01B32/156C01B32/194C01B32/21C01B32/28H01M4/88H01M4/90C01B32/174C01B2202/02C01B2202/22C01B2202/30C01P2004/13C01P2006/40C01P2006/80
Inventor 田路和幸佐藤義伦横山幸司平野一孝佐藤良宪
Owner TOHOKU UNIV
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