WO2024054162A1 - A nano tube production chamber and production method - Google Patents

A nano tube production chamber and production method Download PDF

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Publication number
WO2024054162A1
WO2024054162A1 PCT/TR2022/050522 TR2022050522W WO2024054162A1 WO 2024054162 A1 WO2024054162 A1 WO 2024054162A1 TR 2022050522 W TR2022050522 W TR 2022050522W WO 2024054162 A1 WO2024054162 A1 WO 2024054162A1
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Prior art keywords
chamber
production chamber
production
carbon
nano tube
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PCT/TR2022/050522
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French (fr)
Inventor
Onur Ozan CILSAL
Mustafa Cemal CAKIR
Original Assignee
Bursa Uludağ Üni̇versi̇tesi̇
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Priority to PCT/TR2022/050522 priority Critical patent/WO2024054162A1/en
Publication of WO2024054162A1 publication Critical patent/WO2024054162A1/en

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    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B32/00—Carbon; Compounds thereof
    • C01B32/15—Nano-sized carbon materials
    • C01B32/158—Carbon nanotubes
    • C01B32/16—Preparation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B82—NANOTECHNOLOGY
    • B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
    • B82Y40/00—Manufacture or treatment of nanostructures

Definitions

  • the invention relates to a production chamber for the production of nano tubes and to the production method that allows the production of nano tubes with a production chamber.
  • Nanotubes which have superior physical properties and potential applications in many areas in the literature, can be single-walled or multi-walled. There are chambers in the tank structure developed in the production of nano tubes. In addition, arc evaporation method, laser method and chemical vapor deposition method can be used in nano tube production. Nano tubes are produced by chemical vapor deposition method as the most common production method in the literature. Here, in addition to the mass production of nano tubes, it is possible to produce them at affordable costs.
  • the EP2077251 invention relates to a carbon nano tube production method.
  • the invention includes a method for producing carbon nanotubes and a method for mass- producing carbon nanotubes with various structures at low cost and on a large scale.
  • a solution is described in which the production of carbon nanotubes is achieved by the CVD method using ethanol.
  • the objective of the invention is to develop a production chamber and chemical vapor deposition method in which carbon nanotubes are produced cost-effectively.
  • the invention describes a carbon nanotube production chamber comprising a front hole and a rear hole, which is adjusted to be used with liquid or gas molecule feeds.
  • the invention comprises small flange connections in the front and rear holes of the production chamber, multiple connection holes at the lateral wall that provides at least one form of connection of vacuuming, feeding and joining, and a hot plate placed electrically connected in the production chamber.
  • a production chamber is provided for the production of nano tube having multiple holes, hot plate and hot inner part by means of the hot plate and gas sealing of the chamber.
  • the production chamber is a cold-walled reactor. In this way, cold-walled production of nanotubes is made with the production chamber.
  • the production chamber is a pipe made of a steel material.
  • a preferred configuration of the invention comprises a front cap placed corresponding to the front hole of the production chamber, with at least two O-shaped ring grooves on one body and a gasketed feeding rolls mounted by inserting them into the ring grooves. This provides a connection point through which an electrical connection can be made to the production chamber.
  • a preferred configuration of the invention comprises a rear cap that is placed corresponding to the rear hole and completely covers the production chamber from its rear side. In this way, unintentional gas releases from the production chamber are prevented.
  • the hot plate is made of a thin graphite or silicon-based material, coated with a catalyst-doped material, and electrically connected to the feeding rolls in the front cap. In this way, the active structure of carbon nano tube feeding is provided.
  • a preferred application of the invention comprises the following process steps: vacuuming the chamber with a vacuum pump attached to at least one connection hole for discharging of fluids inside the production chamber; isolation of the chamber from the vacuum pump by means of connection holes in the event of a low pressure when the vacuum level reaches a minimum of 50 Pascals when vacuuming the production chamber; opening of electrically connected feed rolls to ensure resistive heating; heating the hot plate above a minimum of 600°C; supplying non-reactive gas from at least one of the connection holes of the production chamber; releasing carbon-based gas in the event of a gas release into the production chamber by means of a ball valve, or the conversion of the liquid into a gas by evaporation of the liquid in such a way that carbon-based gas is released by means of a carbon-based liquid release in the case of a liquid release; contacting of the carbon-based gas provided by the release of gas with the front cap in such a way that chemical vapors accumulate in the production chamber; during the time that the carbon-based gas comes into contact with the front cap,
  • the external temperature in the chamber is kept at a low level by the use of an insulating pipe located inside the production chamber. In this way, cold wall production can be made.
  • the release of carbon-based gas can be achieved through at least one of the connection holes. In this way, it is pumped into the chamber without gas leakage.
  • the vacuuming of the production chamber is carried out in a state prior to the closure of the production chamber. In this way, it is ensured that the production chamber is purified from the gas in it so that it can be used again and so that it does not create a dangerous situation.
  • the production chamber becomes suitable for nanotube production when it reaches room temperature. In this way, in order for the production chamber to be ready for use again, it is expected to cool down to room temperature again and it is possible to produce again at room temperature
  • FIGURE 1 is a schematic representation of a nanotube production chamber, which is the subject of the invention.
  • Figure 2 is a representation of the flowchart of a nanotube manufacturing method, which is the subject of the invention.
  • FIG. 1 shows schematically a nano tube production chamber, which is the subject of the invention.
  • a carbon nanotube production chamber (10) is a structure used with liquid or gas molecule feeds.
  • the production chamber (10) comprises of a front hole and a back hole (12) (14).
  • the production chamber (10) has small flange connections at the front and rear holes (12) (14).
  • It also comprises a hot plate (30) that can be placed in the production chamber (10) with electrical connection.
  • a production chamber (10) is provided for the production of nano tube having multiple holes, hot plate and hot inner part by means of the hot plate and gas sealing of the chamber.
  • This chamber (10) can be used with a continuous flow of carbon containing gas molecules, or it can be used with a one-time supply of liquid or gas molecules.
  • the production chamber (10) has conflat flange (CF) or small flange (Klein flange- KF) connections in all vacuum or inlet or device connection holes.
  • CF conflat flange
  • Klein flange- KF small flange
  • connection holes (18) also serve as material feeding and sampling ports (connections).
  • a thermocouple can be connected to the production chamber (10) with electrical supply pipes.
  • one configuration of the invention comprises a sight glass on the outer surface of the production chamber (10), which allows to observe evaporation in the tank and the production of carbon nanotubes on the hot surface.
  • the production chamber (10) in the invention is a cold-walled reactor. Thus, cold-walled production of nano tubes is carried out with the production chamber (10).
  • the heat source required for the reactor (production chamber) (10) is located inside the chamber.
  • the heat source is a resistive heater (AC or DC) that is powered by electricity.
  • the heater or hot surface can be flat or, alternatively, cylindrical.
  • supply channels can be used for electrical connection with insulators or specially manufactured supply channels.
  • the production chamber (10) in the invention is a pipe made of a steel material. Thus, the production are costs reduced due to the abundance and variety of steel pipes on the market.
  • the geometry of this chamber (10) and the combination of the chamber with its ready-to-use small flange (Klein flange- KF) connection are unique features of this chamber design.
  • grade 304 or 306 stainless steel pipe is used for the tank in the material.
  • the production chamber (10) of the invention has a front cap (26) having at least two O-shaped placed ring grooves (22) mounted on a body (20) and gasketed feeding rolls (24) in the ring grooves (22). Thus, an electrically connectable connection point is provided to the production chamber (10).
  • the production chamber (10) in the invention has a rear cap (28) that is placed in the back hole (14) and completely covers the production chamber (10) from the back. Thus, unintentional gas releases from the rear of the production chamber (10) are prevented.
  • the hot plate (30) in the production chamber (10), which is subject of the invention, is a structure made of a thin graphite or silicon-based material, coated with catalyst-doped material, and electrically connected to the feeding rolls (24) in the front cap (26).
  • the hot plate (30) in the invention is a structure placed on a graphite or silicon-based insulator to isolate electric current from the outer surface. In one configuration of the invention, the hot plate (30) can be removed and replaced. This facilitates the loading and unloading of carbon-nanotubes.
  • FIG. 2 shows the flow chart of a nanotube production method, which is the subject of the invention.
  • the flow chart for the production of carbon nanotubes using the cost- effective CVD (chemical vapor deposition) production method in the carbon nanotube production chamber (10) of the invention is given below;
  • carbon-based gas (62) carbon-containing ethanol gas is used as an application of the invention.
  • a vacuum pump is required to ensure the availability of the reaction gases without any combustion reaction.
  • the external temperature in the chamber is kept at a low level by using an isolation pipe (78) in the production chamber (10).
  • an isolation pipe (78) in the production chamber (10).
  • the tank that is the production chamber (10) here is made of metal, the heat released from the hot surface during the CNT (carbon nano tube) production processes can heat the walls of the chamber (10), which can eventually damage the O-rings and cause leakage during the process. So, a situation that can lead to leakage and catastrophic consequences is possible.
  • an isolation pipe (78) for example a ceramic insulator, is also integrated to reduce heat transfer by convection and radiation.
  • carbon-based gas release (52) can be achieved through at least one of the connection holes (18).
  • gas is pumped into the chamber (10) without leaking gas.
  • vacuuming of the production chamber (32) is performed in a state (80) before the production chamber (10) is closed.
  • the chamber (10) is purified from the gas in it so that it does not create a hazardous situation.
  • the production chamber (10) reaches room temperature (82) it becomes suitable for nano tube production (84).
  • it is expected to cool down to room temperature again and production can be made again when the temperature in the chamber (10) reaches the room temperature.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Nanotechnology (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Carbon And Carbon Compounds (AREA)

Abstract

The present invention relates to a carbon nano tube production chamber and production method, wherein the said production chamber can be adjusted to be used with liquid or gas molecule feeds, it comprises a front hole and a rear hole (12) (14), it is configured to include small flange connections in its front and rear holes (12) (14) of the production chamber (10), it comprises multiple connection holes (18) that provide at least one connection form of vacuuming, feeding and joining on the lateral wall (16) and it comprises a hot plate (30) placed in the production chamber (10) to be electrically connected to it.

Description

A NANO TUBE PRODUCTION CHAMBER AND PRODUCTION METHOD
TECHNICAL FIELD
The invention relates to a production chamber for the production of nano tubes and to the production method that allows the production of nano tubes with a production chamber.
STATE OF THE ART
Nanotubes, which have superior physical properties and potential applications in many areas in the literature, can be single-walled or multi-walled. There are chambers in the tank structure developed in the production of nano tubes. In addition, arc evaporation method, laser method and chemical vapor deposition method can be used in nano tube production. Nano tubes are produced by chemical vapor deposition method as the most common production method in the literature. Here, in addition to the mass production of nano tubes, it is possible to produce them at affordable costs.
The EP2077251 invention relates to a carbon nano tube production method. The invention includes a method for producing carbon nanotubes and a method for mass- producing carbon nanotubes with various structures at low cost and on a large scale. Here, a solution is described in which the production of carbon nanotubes is achieved by the CVD method using ethanol.
BRIEF DESCRIPTION OF THE INVENTION
The objective of the invention is to develop a production chamber and chemical vapor deposition method in which carbon nanotubes are produced cost-effectively.
To achieve the objectives mentioned above, the invention describes a carbon nanotube production chamber comprising a front hole and a rear hole, which is adjusted to be used with liquid or gas molecule feeds. The invention comprises small flange connections in the front and rear holes of the production chamber, multiple connection holes at the lateral wall that provides at least one form of connection of vacuuming, feeding and joining, and a hot plate placed electrically connected in the production chamber. In this way, a production chamber is provided for the production of nano tube having multiple holes, hot plate and hot inner part by means of the hot plate and gas sealing of the chamber.
In a preferred configuration of the invention, the production chamber is a cold-walled reactor. In this way, cold-walled production of nanotubes is made with the production chamber.
In a preferred configuration of the invention, the production chamber is a pipe made of a steel material. By means of this, production costs are reduced due to the abundance and variety of steel pipes on the market.
A preferred configuration of the invention comprises a front cap placed corresponding to the front hole of the production chamber, with at least two O-shaped ring grooves on one body and a gasketed feeding rolls mounted by inserting them into the ring grooves. This provides a connection point through which an electrical connection can be made to the production chamber.
A preferred configuration of the invention comprises a rear cap that is placed corresponding to the rear hole and completely covers the production chamber from its rear side. In this way, unintentional gas releases from the production chamber are prevented.
In a preferred configuration of the invention the hot plate is made of a thin graphite or silicon-based material, coated with a catalyst-doped material, and electrically connected to the feeding rolls in the front cap. In this way, the active structure of carbon nano tube feeding is provided.
A preferred application of the invention comprises the following process steps: vacuuming the chamber with a vacuum pump attached to at least one connection hole for discharging of fluids inside the production chamber; isolation of the chamber from the vacuum pump by means of connection holes in the event of a low pressure when the vacuum level reaches a minimum of 50 Pascals when vacuuming the production chamber; opening of electrically connected feed rolls to ensure resistive heating; heating the hot plate above a minimum of 600°C; supplying non-reactive gas from at least one of the connection holes of the production chamber; releasing carbon-based gas in the event of a gas release into the production chamber by means of a ball valve, or the conversion of the liquid into a gas by evaporation of the liquid in such a way that carbon-based gas is released by means of a carbon-based liquid release in the case of a liquid release; contacting of the carbon-based gas provided by the release of gas with the front cap in such a way that chemical vapors accumulate in the production chamber; during the time that the carbon-based gas comes into contact with the front cap, a propeller motor placed in the chamber in such a way that it is electrically connected to the front cap directs the carbon-based gas in the chamber to the hot plate, accelerating the production of carbon-based nano tubes and converting the gas into nano tubes. In this way, carbon nanotubes are produced cost-effectively in the carbon nanotube production chamber using the production method provided by CVD (chemical vapor deposition).
In a preferred application of the invention, the external temperature in the chamber is kept at a low level by the use of an insulating pipe located inside the production chamber. In this way, cold wall production can be made.
In a preferred application of the invention, the release of carbon-based gas can be achieved through at least one of the connection holes. In this way, it is pumped into the chamber without gas leakage.
In a preferred application of the invention, the vacuuming of the production chamber is carried out in a state prior to the closure of the production chamber. In this way, it is ensured that the production chamber is purified from the gas in it so that it can be used again and so that it does not create a dangerous situation.
In a preferred application of the invention, the production chamber becomes suitable for nanotube production when it reaches room temperature. In this way, in order for the production chamber to be ready for use again, it is expected to cool down to room temperature again and it is possible to produce again at room temperature
BRIEF DESCRIPTION OF THE FIGURES Figure 1 is a schematic representation of a nanotube production chamber, which is the subject of the invention.
Figure 2 is a representation of the flowchart of a nanotube manufacturing method, which is the subject of the invention.
DETAILED DESCRIPTION OF THE INVENTION
In this detailed description, the development, which is the subject of the invention, is described in a way so that there will be no restrictions and only to better explain the subject with references to examples.
Figure 1 shows schematically a nano tube production chamber, which is the subject of the invention. A carbon nanotube production chamber (10) is a structure used with liquid or gas molecule feeds. The production chamber (10) comprises of a front hole and a back hole (12) (14). The production chamber (10) has small flange connections at the front and rear holes (12) (14). There are also multiple connection holes (18) on the lateral wall (16) that provide at least one form of connection from vacuuming, feeding and connection. It also comprises a hot plate (30) that can be placed in the production chamber (10) with electrical connection. In this way, a production chamber (10) is provided for the production of nano tube having multiple holes, hot plate and hot inner part by means of the hot plate and gas sealing of the chamber. This chamber (10) can be used with a continuous flow of carbon containing gas molecules, or it can be used with a one-time supply of liquid or gas molecules. In addition, the production chamber (10) has conflat flange (CF) or small flange (Klein flange- KF) connections in all vacuum or inlet or device connection holes. Here, by means of the ease of processing and welding, it is always possible to add more connection points on the surface of the chamber pipe (10). For the production chamber (10), steel pipe was chosen with an outer diameter of 60 mm and a wall thickness of 2 mm and a length of 500 mm. Production chamber (10) parameters can be adjusted based on the availability of connections. KF50 flanges are selected for both ends of the steel pipe (10). KF16, KF25, KF40, KF50 or larger flanges can be used here. In addition, the openings provided by the connection holes (18) also serve as material feeding and sampling ports (connections). In one configuration of the invention, a thermocouple can be connected to the production chamber (10) with electrical supply pipes. In addition, one configuration of the invention comprises a sight glass on the outer surface of the production chamber (10), which allows to observe evaporation in the tank and the production of carbon nanotubes on the hot surface. The production chamber (10) in the invention is a cold-walled reactor. Thus, cold-walled production of nano tubes is carried out with the production chamber (10). Here, the heat source required for the reactor (production chamber) (10) is located inside the chamber. The heat source is a resistive heater (AC or DC) that is powered by electricity. The heater or hot surface can be flat or, alternatively, cylindrical. In addition, in the production chamber, supply channels can be used for electrical connection with insulators or specially manufactured supply channels. The production chamber (10) in the invention is a pipe made of a steel material. Thus, the production are costs reduced due to the abundance and variety of steel pipes on the market. The geometry of this chamber (10) and the combination of the chamber with its ready-to-use small flange (Klein flange- KF) connection are unique features of this chamber design. In addition, due to the properties of safety, cost, chemical stability and ease of vacuuming, grade 304 or 306 stainless steel pipe is used for the tank in the material. Since the chamber material is metal, electrical insulation is provided in the production chamber (10) to prevent short circuit. The production chamber (10) of the invention has a front cap (26) having at least two O-shaped placed ring grooves (22) mounted on a body (20) and gasketed feeding rolls (24) in the ring grooves (22). Thus, an electrically connectable connection point is provided to the production chamber (10). The production chamber (10) in the invention has a rear cap (28) that is placed in the back hole (14) and completely covers the production chamber (10) from the back. Thus, unintentional gas releases from the rear of the production chamber (10) are prevented. The hot plate (30) in the production chamber (10), which is subject of the invention, is a structure made of a thin graphite or silicon-based material, coated with catalyst-doped material, and electrically connected to the feeding rolls (24) in the front cap (26). Thus, the active structure of the carbon nano tube feed is provided. The hot plate (30) in the invention is a structure placed on a graphite or silicon-based insulator to isolate electric current from the outer surface. In one configuration of the invention, the hot plate (30) can be removed and replaced. This facilitates the loading and unloading of carbon-nanotubes. In addition, in one configuration of the invention, for example, iron, cobalt, nickel particles can be used as catalyst-doped coating material and at least one material from nanoparticles can be used. Figure 2 shows the flow chart of a nanotube production method, which is the subject of the invention. The flow chart for the production of carbon nanotubes using the cost- effective CVD (chemical vapor deposition) production method in the carbon nanotube production chamber (10) of the invention is given below;
• Vacuuming of chamber (32) with a vacuum pump (38) attached to at least one connection hole (18) for the discharge of fluids inside the production chamber (10),
• Isolating (40) the chamber (10) from the vacuum pump through the connection holes (18) in a low pressure situation (36) where the vacuum level (34) reaches a minimum of 50 Pascals while the production chamber is being vacuumed (32),
• Opening of the electrically connected feeding rolls (24) to provide resistive heating (42),
• Heating of hot plate (30) above minimum 600°C (44),
• Performing non-reactive gas supply (46) from at least one of the connection holes (18) of the production chamber (10),
• By evaporating the liquid (58) by releasing carbon-based gas in a gas release situation (52) through a spherical valve (48) into the production chamber (10), or by making a carbon-based liquid release (56) in a liquid release situation (54)) carbonbased gas release (52) conversion of liquid to gas (60)
• Releasing of carbon-based gas (52) through a spherical valve (48) into the production chamber (10) in case of a gas release situation (50) or performing a carbon-based liquid release (56) in case of a liquid release situation (54), thus evaporating the liquid (58), performing carbon-based gas release (52) and conversion of liquid to gas (60),
• Contacting of the carbon-based gas (62) provided by the gas release (52) with the front cap (64), thus allowing it to accumulate chemical vapor in the production chamber (10),
• During the time (66) that the carbon-based gas (62) comes into contact with the front cap, a propeller motor (70) placed in the chamber in such a way that it is electrically connected (68) to the front cap (26) directs the carbon-based gas (62) in the chamber to the hot plate (72), accelerating the production of carbon-based nano tubes (74) and converting the gas into nano tubes (76). In the nano tube production method, which is the subject of the invention, carbon-based gas (62) carbon-containing ethanol gas is used as an application of the invention. In addition, in the invention, it is ensured that any hazardous situation is prevented by impermeable performing gas purification with a vacuum pump (38). In other words, a vacuum pump is required to ensure the availability of the reaction gases without any combustion reaction. In one embodiment of the invention, the external temperature in the chamber is kept at a low level by using an isolation pipe (78) in the production chamber (10). This way, cold-walled production can be made. Since the tank that is the production chamber (10) here is made of metal, the heat released from the hot surface during the CNT (carbon nano tube) production processes can heat the walls of the chamber (10), which can eventually damage the O-rings and cause leakage during the process. So, a situation that can lead to leakage and catastrophic consequences is possible. To prevent this, an isolation pipe (78), for example a ceramic insulator, is also integrated to reduce heat transfer by convection and radiation. In one embodiment of the invention, carbon-based gas release (52) can be achieved through at least one of the connection holes (18). Thus, gas is pumped into the chamber (10) without leaking gas. In the production method of the invention, vacuuming of the production chamber (32) is performed in a state (80) before the production chamber (10) is closed. Thus, it is ensured that the chamber (10) is purified from the gas in it so that it does not create a hazardous situation. In addition, when the production chamber (10) reaches room temperature (82) it becomes suitable for nano tube production (84). Thus, in order for the production chamber (10) to be ready for use again, it is expected to cool down to room temperature again and production can be made again when the temperature in the chamber (10) reaches the room temperature.
Figure imgf000010_0001

Claims

1. A carbon nano tube production chamber, wherein the said production chamber can be adjusted to be used with liquid or gas molecule feeds, comprising a front hole and a rear hole (12) (14), characterized by comprising; configured to include small flange connections in its front and rear holes (12) (14) of the production chamber (10), multiple connection holes (18) that provide at least one connection form of vacuuming, feeding and joining on a lateral wall (16) and a hot plate (30) placed in the production chamber (10) to be electrically connected to it
2. A carbon nano tube production chamber according to claim 1, characterized in that; production chamber (10) is a cold-walled reactor.
3. A carbon nano tube production chamber according to any of the preceding claims, characterized in that; production chamber (10) is a pipe made from steel material.
4. A carbon nano tube production chamber according to any of the preceding claims, characterized by comprising; a front cap (26) placed corresponding to the front hole (12) of the production chamber (10), with at least two O-shaped ring grooves (22) on one body (20) and a gasketed feeding rolls (24) mounted by inserting them into the ring grooves (22).
5. A carbon nano tube production chamber according to any of the preceding claims, characterized by comprising; a rear cap (28) that is placed corresponding to the rear hole (14) and completely covers the production chamber (10) from its rear side.
6. A carbon nano tube production chamber according to any of the preceding claims, characterized in that; a hot plate (30) is made of a thin graphite or silicon-based material, coated with a catalyst-doped material, and electrically connected to the feeding rolls (24) in the front cap (26).
7. A carbon nano tube production method according to any of the preceding claims, characterized by comprising; the following process steps: vacuuming of chamber (32) with a vacuum pump (38) attached to at least one connection hole (18) for the discharge of fluids inside the production chamber (10); isolating (40) the chamber (10) from the vacuum pump through the connection holes (18) in a low pressure situation (36) where the vacuum level (34) reaches a minimum of 50 Pascals while the production chamber is being vacuumed (32); opening of the electrically connected feeding rolls (24) to provide resistive heating (42); heating of hot plate (30) above minimum 600°C (44); performing non-reactive gas supply (46) from at least one of the connection holes (18) of the production chamber (10); by evaporating the liquid (58) by releasing carbon-based gas in a gas release situation (52) through a spherical valve (48) into the production chamber (10), or by making a carbon-based liquid release (56) in a liquid release situation (54) ) carbon-based gas release (52) conversion of liquid to gas (60); releasing of carbon-based gas (52) through a spherical valve (48) into the production chamber (10) in case of a gas release situation (50) or performing a carbon-based liquid release (56) in case of a liquid release situation (54), thus evaporating the liquid (58), performing carbon-based gas release (52) and conversion of liquid to gas (60); contacting of the carbonbased gas (62) provided by the gas release (52)with the front cap (64), thus allowing it to accumulate chemical vapor in the production chamber (10); during the time (66) that the carbon-based gas (62) comes into contact with the front cap, a propeller motor (70) placed in the chamber in such a way that it is electrically connected (68) to the front cap (26) directs the carbon-based gas (62) in the chamber to the hot plate (72), accelerating the production of carbonbased nano tubes (74) and converting the gas into nano tubes (76).
8. A carbon nano tube production method according to any of the preceding claims, characterized in that; the outside temperature in the chamber is kept at a low level by the use of an isolation pipe (78) in the production chamber (10).
9. A carbon nano tube production method according to any of the preceding claims, characterized in that; carbon-based gas release (52) can be achieved through at least one of the connecting holes (18).
10. A carbon nano tube production method according to any of the preceding claims, characterized in that; the vacuuming of the production chamber (32) is carried out in a state (80) before the closing of the production chamber (10).
11. A carbon nano tube production method according to any of the preceding claims, characterized in that; when the production chamber (10) reaches the room temperature (82) it becomes suitable for nano tube production (84).
PCT/TR2022/050522 2022-06-03 2022-06-03 A nano tube production chamber and production method WO2024054162A1 (en)

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EP3269684A1 (en) * 2015-03-09 2018-01-17 LG Chem, Ltd. Carbon nanostructure preparation method, carbon nanostructure prepared by means of same, and composite material comprising same
WO2020253104A1 (en) * 2019-06-19 2020-12-24 江西铜业技术研究院有限公司 Carbon nano tube preparation device and method

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WO2020253104A1 (en) * 2019-06-19 2020-12-24 江西铜业技术研究院有限公司 Carbon nano tube preparation device and method

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