WO2023068389A1 - Appareil de production de graphène - Google Patents

Appareil de production de graphène Download PDF

Info

Publication number
WO2023068389A1
WO2023068389A1 PCT/KR2021/014579 KR2021014579W WO2023068389A1 WO 2023068389 A1 WO2023068389 A1 WO 2023068389A1 KR 2021014579 W KR2021014579 W KR 2021014579W WO 2023068389 A1 WO2023068389 A1 WO 2023068389A1
Authority
WO
WIPO (PCT)
Prior art keywords
graphene
oxide powder
moving
unit
laser
Prior art date
Application number
PCT/KR2021/014579
Other languages
English (en)
Korean (ko)
Inventor
양우석
김선주
Original Assignee
한국전자기술연구원
주식회사 코윈디에스티
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 한국전자기술연구원, 주식회사 코윈디에스티 filed Critical 한국전자기술연구원
Publication of WO2023068389A1 publication Critical patent/WO2023068389A1/fr

Links

Images

Classifications

    • 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
    • C01B32/182—Graphene
    • C01B32/184—Preparation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J19/08—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor
    • B01J19/12—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor employing electromagnetic waves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J19/08—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor
    • B01J19/12—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor employing electromagnetic waves
    • B01J19/121—Coherent waves, e.g. laser beams
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J19/28—Moving reactors, e.g. rotary drums
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J19/28—Moving reactors, e.g. rotary drums
    • B01J19/285—Shaking or vibrating reactors; reactions under the influence of low-frequency vibrations or pulsations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J4/00—Feed or outlet devices; Feed or outlet control devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J4/00—Feed or outlet devices; Feed or outlet control devices
    • B01J4/001—Feed or outlet devices as such, e.g. feeding tubes
    • 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
    • C01B32/182—Graphene
    • C01B32/194—After-treatment
    • C01B32/196—Purification

Definitions

  • the present invention relates to a graphene manufacturing apparatus, and more particularly, to a graphene manufacturing apparatus for producing graphene powder by irradiating a laser to graphite oxide powder or graphene oxide powder. It's about
  • Graphene is one of the allotropes of carbon and has a structure in which carbon atoms gather to form a two-dimensional plane. Each carbon atom forms a hexagonal lattice, and the carbon atoms are located at the vertices of the hexagon.
  • Graphene has very high intrinsic electron mobility, high thermal conductivity, Young's modulus, and a very large theoretical specific surface area. In addition, since it is composed of one layer, it has a characteristic of very low absorption of visible light.
  • graphene Due to these characteristics of graphene, graphene is used in airplanes, automobiles, and building materials by making thin, light and durable objects, or by making fibers with the strength of graphene and used in light and safe combat clothing and bulletproof vests. Carbon fibers using . In addition, graphene's fast electrical conductivity reduces electrical resistance and is expected to develop in the medical industry.
  • Such graphene is produced from graphite.
  • an object of the present invention is to provide a graphene manufacturing apparatus capable of manufacturing graphene without a complicated process.
  • an object of the present invention is to provide a graphene production apparatus capable of continuously producing a large amount of graphene.
  • an object of the present invention is to provide a graphene manufacturing apparatus capable of increasing graphene manufacturing efficiency.
  • a graphene manufacturing apparatus includes a supply unit for supplying graphite oxide powder or graphene oxide powder;
  • the graphite oxide powder or the graphite oxide powder supplied from the supply unit having a moving surface coupled to one side of the supply unit and having a predetermined width therein and extending in one direction from one side and a moving unit body having a moving space formed on the upper side of the moving surface a moving unit that receives graphene oxide powder from one side of the movement space and moves it to the other side;
  • a laser irradiation unit configured to irradiate a laser onto a moving path of the graphite oxide powder or the graphene oxide powder to convert the graphite oxide powder or the graphene oxide powder into graphene powder; and a collecting unit connected to the other side of the moving unit to collect the graphene powder.
  • the laser irradiation unit may irradiate a linear laser extending in the width direction of the moving surface.
  • the supply unit may supply the graphite oxide powder or the graphene oxide powder to one side of the moving surface so that the graphite oxide powder or the graphene oxide powder is distributed in the width direction.
  • the intensity of the laser of the laser irradiator may be 30 W/mm 2 or more and 150 W/mm 2 or less.
  • a speed at which the moving unit moves the graphite oxide powder or the graphene oxide powder may be 5 mm/s or more and 50 mm/s or less.
  • the moving unit is formed in a cylindrical shape so that the moving space is formed therein, and a moving unit body having a moving surface having a predetermined angle with the direction of its own weight is formed on the lower inner surface; and a vibration generating unit disposed on one side of the moving unit body and generating vibrations.
  • the vibration generator may transfer the vibration to the body of the moving unit to move the graphite oxide powder or the graphene oxide powder along the moving surface.
  • a quartz substrate 230 formed in an area where the laser irradiation unit irradiates the laser may further include.
  • the quartz substrate may be integrally formed with the body of the moving part.
  • the laser irradiation unit is disposed outside the moving unit and is formed on the moving unit body 210 so that the laser L irradiated from the laser irradiation unit 300 penetrates and reaches the moving surface 212 lens 240; may further include.
  • a collecting unit coupled to the other side of the moving unit to separate and collect the manufactured graphene powder from the graphite oxide powder or the graphene oxide powder; may further include.
  • the collecting unit includes a suction member providing a suction force to collect the graphene powder floating in the moving space as the laser is irradiated to the graphite oxide powder or the graphene oxide powder to form the graphene powder; and a collecting container connected to the suction member to store the collected graphene powder.
  • a suction member providing a suction force to collect the graphene powder floating in the moving space as the laser is irradiated to the graphite oxide powder or the graphene oxide powder to form the graphene powder
  • a collecting container connected to the suction member to store the collected graphene powder.
  • the suction member may be a cyclone hopper.
  • the collecting unit includes a gas supply member forming a flow so that the graphene powder can move along the moving space; may further include.
  • the gas supplied by the gas supply member may be an inert gas.
  • the gas supply member is formed in plurality, a part of the gas supply member is disposed behind an area where the laser is irradiated by the laser irradiation unit, and another part of the gas supply member is disposed behind an area irradiated with the laser by the laser irradiation unit.
  • the laser may be disposed in front of the irradiated area.
  • a guide member protruding from an upper inner surface of the moving unit body may be formed to guide the flow formed by the gas supply member toward the collecting unit.
  • a collection unit for recovering the graphite oxide powder or the graphene oxide powder moved to the other side of the moving unit and supplying it to the supply unit may further include.
  • graphene can be manufactured without a complicated processing process by irradiating a laser to graphite oxide powder or graphene oxide powder.
  • the graphene manufacturing apparatus includes a moving unit for continuously moving the graphite oxide powder or the graphene oxide powder, so that a large amount of graphene can be continuously manufactured.
  • the graphene manufacturing apparatus may increase graphene manufacturing efficiency by including a recovery unit for separating graphene oxide or graphene oxide that has not been graphene after laser irradiation.
  • FIG. 1 is a diagram illustrating a graphite oxide powder or graphene oxide powder moving state of a graphene manufacturing apparatus according to an embodiment of the present invention.
  • FIG. 2 is an enlarged view of a moving part of a graphene manufacturing apparatus according to an embodiment of the present invention.
  • FIG. 3 is a diagram illustrating a laser irradiation state of a graphene manufacturing apparatus according to an embodiment of the present invention.
  • FIG. 4 is an enlarged cross-sectional view of line A-A of FIG. 3 .
  • FIG 5 is an enlarged perspective view illustrating a state in which a laser is irradiated to the graphite oxide powder or the graphene oxide powder of the graphene manufacturing apparatus according to an embodiment of the present invention.
  • FIG. 6 is a diagram showing Raman shift values of graphene prepared under a first experimental condition using a graphene manufacturing method according to an embodiment of the present invention.
  • FIG. 7 is a graph showing Raman shift values of graphene prepared under second experimental conditions using the graphene manufacturing method according to an embodiment of the present invention.
  • FIG. 8 is a graph showing Raman shift values of graphene prepared under third experimental conditions using the graphene manufacturing method according to an embodiment of the present invention.
  • FIG. 9 is a graph showing Raman shift values of graphene prepared under a fourth experimental condition using the graphene manufacturing method according to an embodiment of the present invention.
  • FIG. 10 is a graph showing Raman shift values of graphene prepared under a fifth experimental condition using the graphene manufacturing method according to an embodiment of the present invention.
  • the present invention relates to a graphene manufacturing apparatus, and provides a graphene manufacturing apparatus for manufacturing graphene powder by irradiating a graphite oxide powder or a graphene oxide powder with a laser.
  • FIG. 1 is a diagram illustrating a graphite oxide powder or graphene oxide powder moving state of a graphene manufacturing apparatus according to an embodiment of the present invention.
  • 2 is an enlarged view of a moving part of a graphene manufacturing apparatus according to an embodiment of the present invention.
  • 3 is a diagram illustrating a laser irradiation state of a graphene manufacturing apparatus according to an embodiment of the present invention.
  • FIG. 4 is an enlarged cross-sectional view of line A-A of FIG. 3 .
  • 5 is an enlarged perspective view illustrating a state in which a laser is irradiated to the graphite oxide powder or the graphene oxide powder of the graphene manufacturing apparatus according to an embodiment of the present invention.
  • the graphene manufacturing apparatus 1 includes a supply unit 100, a moving unit 200, a laser irradiation unit 300, a quartz substrate 230, and a collecting unit ( 700) is provided.
  • the supply unit 100 supplies graphite oxide powder or graphene oxide powder G1.
  • a supply port 110 through which the graphite oxide powder or the graphene oxide powder G1 is discharged may be formed protruding from one side of the supply unit 100 .
  • the supply hole 110 may be formed to extend in the width direction, and the graphite oxide powder or graphene oxide powder G1 discharged through the supply hole 110 may be continuously disposed to be distributed in a predetermined width W.
  • the laser irradiation unit 300 to be described later can irradiate the laser L to the graphite oxide powder or the graphene oxide powder G1 over a wide area.
  • the moving unit 200 is connected to the supply port 110 of the supply unit 100 . At this time, the moving unit 200 receives the graphite oxide powder or graphene oxide powder G1 from the supply unit 100 and moves the graphite oxide powder or graphene oxide powder G1 from one side to the other.
  • the moving part 200 of the graphene manufacturing apparatus 1 includes a moving part body 210, a moving surface 212, and a moving space 211.
  • a moving surface 212 extending in one direction from one side having a predetermined width W is formed inside the moving part body 210 .
  • the moving surface 212 is formed on the lower side of the moving unit body 210 along the direction of its own weight and serves as a moving path for the graphite oxide powder or graphene oxide powder G1 supplied through the supply unit 100 .
  • a moving space 211 is formed on the upper side of the moving surface 212, and the moving space 211 extends in the longitudinal direction like the moving surface 212.
  • the moving unit body 210 may be formed in a tubular shape as shown in FIG. 1, but is not limited thereto.
  • the supply port 110 is coupled to one side of the moving unit body 210, and accordingly, the graphite oxide powder or graphene oxide powder G1 supplied from the supply unit 100 is disposed on one side of the moving surface 212. At this time, the vibration generating unit 400 is coupled to the moving unit body 210 .
  • the vibration generating unit 400 vibrates the moving unit body 210 so that the moving unit body 210 vibrates at a predetermined frequency.
  • the moving surface 212 is formed to have a predetermined angle with the axis C extending in the direction of its own weight.
  • the frequency of the vibration generated by the vibration generator 400 may vary as needed.
  • the moving speed of the graphite oxide powder or graphene oxide powder G1 moving along the moving surface 212 may be 5 mm/s or more and 50 mm/s or less, preferably 16.67 mm/s, depending on the frequency.
  • the moving speed of the graphite oxide powder or graphene oxide powder (G1) moving along the moving surface 212 is 16.67 mm / s
  • the exposure time of the powder or graphene oxide powder G1 may be 0.024 seconds.
  • the graphite oxide powder or the graphene oxide powder (G1) When the graphite oxide powder or the graphene oxide powder (G1) is moved in one direction by a separate moving means, a separation inevitably occurs between the separate moving means and the moving unit body 210, and the graphite oxide powder or graphene The oxide powder G1 may unintentionally accumulate in the space caused by the above-mentioned separation. Accordingly, failure of the moving means may occur, and graphite oxide powder or graphene oxide powder G1 may be lost, thereby reducing graphene production efficiency. Therefore, in the present embodiment, the above problems can be prevented by moving the graphite oxide powder or the graphene oxide powder G1 along the moving surface 212 by vibration.
  • the laser irradiation unit 300 irradiates a laser L to the graphite oxide powder or graphene oxide powder G1 moving along the moving surface 212 to obtain the graphite oxide powder or graphene oxide powder ( G1) is prepared as graphene powder (G2).
  • the graphite oxide powder or graphene oxide powder G1 is exposed to the laser L, the graphite oxide or graphene oxide is reduced to graphene, and the reduced graphene powder G2 is formed by the moving part body ( 210) to float in the movement space 211.
  • the intensity (LASER Power Intensity) of the laser (L) irradiated by the laser irradiator 300 may be 30 W/mm 2 or more and 150 W/mm 2 or less, preferably 84,85 W/mm 2 there is.
  • the laser L irradiated by the laser irradiation unit 300 is a linear laser extending in the width direction of the moving surface 212 perpendicular to the extending direction of the moving surface 212, that is, a line laser.
  • the graphite oxide powder or graphene oxide powder G1 distributed in the width direction on the moving surface 212 is moved in the extension direction of the moving surface 212, so that the area A to which the laser L is irradiated can be widened. do. Accordingly, more graphene powder (G2) can be manufactured.
  • the laser irradiation unit 300 may be disposed outside the moving unit body 210, and accordingly, the laser L is transmitted through the laser irradiation unit 300 side of the moving unit body 210 to produce graphite oxide powder or graphene oxide powder.
  • a lens 240 may be provided to reach (G1).
  • a known lens may be used as the lens 240, and the shape or material of the lens 240 is not limited.
  • the movement flow of the graphene powder G2 can be smoothed as will be described later.
  • the lens 240 to prevent the moving space 211 of the moving unit body 210 from being exposed to the outside for laser (L) irradiation, the graphene powder (G2) produced during laser irradiation is supplied to the moving unit. It is possible to prevent leakage to the outside of the body 210 .
  • a quartz substrate 230 is formed in an area where the laser L is irradiated.
  • the quartz substrate 230 prevents the moving unit body 210 from being damaged by the laser L.
  • the quartz substrate 230 and the moving part body 210 are integrally formed, it is possible to prevent a step from occurring on the moving surface 212 . Through this, it is possible to prevent the graphite oxide powder or the graphene oxide powder G1 from accumulating between the quartz substrate 230 and the moving part body 210, thereby impeding the smooth movement of the graphite oxide powder or the graphene oxide powder G1. be able to
  • the collecting unit 700 converts graphene powder G2 generated by exposing the graphite oxide powder or graphene oxide powder G1 to the laser L to graphite oxide powder or graphene oxide. It is collected separately from the powder (G1).
  • the collecting unit 700 is coupled to the other side of the moving unit body 210, more specifically, a collecting tool formed on the other side of the moving unit body 210 so that the moving space 211 and the outside can communicate fluidly. (260).
  • the collecting unit 700 sucks the graphene powder G2 floating in the moving space 211 through the collecting port 260 to separate the graphene powder G2 from the graphite oxide powder or the graphene oxide powder G1. so that it can be captured.
  • the collecting unit 700 of the graphene manufacturing apparatus 1 includes a suction member 710 and a collecting container 720 .
  • one side of the suction member 710 is coupled to the collector 260 and provides a suction force through the collector 260 .
  • a variety of well-known methods may be used as a method for the suction member 710 to provide suction power.
  • the suction member 710 may be a cyclone hopper suitable for collecting powder.
  • the other side of the suction member 710 is coupled with a collecting container 720 in which graphene powder G2 discharged through the collecting hole 260 by the suction member 710 can be stored.
  • the shape of the collecting container 720 is not limited as long as it can provide a space in which the graphene powder G2 can be stored.
  • the graphene manufacturing apparatus 1 may further include a gas supply member 500 and a guide member 220 .
  • the gas supply member 500 forms a gas flow so that the graphene powder G2 floating in the moving space 211 can be moved to one side of the moving unit body 210, that is, to the collector 260 side.
  • the gas supply member 500 supplies gas toward the collector 260 .
  • the gas supply member 500 forms a gas flow by supplying gas at a fine intensity so that the graphite oxide powder or the graphene oxide powder G1 does not float.
  • the gas supplied from the gas supply member 500 may be an inert gas such as nitrogen in order to prevent the gas from reacting with the graphene powder G2.
  • a plurality of gas supply members 500 may be formed in order to more efficiently move the graphene powder G2 .
  • the number of gas supply members 500 is not limited, and in this embodiment, the first gas supply member 500a and the second gas supply member 500b are disposed.
  • the first gas supply member 500a is in front of the region A where the laser irradiator 300 irradiates the laser L, and moves the graphite oxide powder or graphene oxide powder G1. It may be disposed on the opposite side of the moving direction of the graphite oxide powder or graphene oxide powder G1 as the direction side and the rear side. Accordingly, the graphene powder (G2), which is suspended by the laser (L) irradiation, is prevented from moving to the rear of the movement space 211 and is induced to move to the collector 260.
  • the moving unit body ( 210) may be formed with a guide member 220 protruding from the inner upper surface.
  • the guide member 220 may be formed with an inclination such that the graphene powder G2 moves adjacent to the collector 260 side.
  • the graphene manufacturing apparatus 1 may further include a recovery unit 600 .
  • the recovery unit 600 recovers the graphite oxide powder or graphene oxide powder G1 that has not been reduced to graphene even after being irradiated with the laser L, and supplies it to the supply unit 100 to obtain graphite oxide powder or graphene oxide powder ( G1) is continuously exposed to the laser (L) so that it can be reduced to graphene.
  • the recovery unit 600 is disposed on the other side of the movable unit body 210, and there is no limitation on the position disposed in front of the region A to which the laser L is irradiated.
  • the recovery unit 600 moves the graphite oxide powder or graphene oxide powder (G1) to the supply unit 100, and in this embodiment, the recovery unit 600 uses the recovery guide member 610 and A moving member 620 may be provided.
  • the recovery guide member 610 is coupled to the recovery port 250 formed on the other side of the moving unit body 210 .
  • the recovery port 250 is formed to penetrate downward on the other side of the moving surface 212, and the graphite oxide powder or graphene oxide powder G1 moving along the moving surface 212 passes through the recovery port 250 to the moving part body ( 210) is discharged to the outside.
  • the graphite oxide powder or graphene oxide powder G1 discharged through the recovery port 250 is guided by the recovery guide member 610 and moved to the moving member 620 .
  • the moving member 620 moves the graphite oxide powder or graphene oxide powder G1 to the supply unit 100, and the supply unit 100 receiving the graphite oxide powder or graphene oxide powder G1 is again supplied through the supply port ( 110), the graphite oxide powder or the graphene oxide powder G1 is supplied to the moving part body 210.
  • various known parts may be used to move the graphite oxide powder or the graphene oxide powder G1, but is not limited thereto.
  • FIGS. 6 to 10 are diagram illustrating Raman shift values of graphene prepared under a first experimental condition using a graphene manufacturing method according to an embodiment of the present invention.
  • 7 is a graph showing Raman shift values of graphene prepared under second experimental conditions using the graphene manufacturing method according to an embodiment of the present invention.
  • 8 is a graph showing Raman shift values of graphene prepared under third experimental conditions using the graphene manufacturing method according to an embodiment of the present invention.
  • FIG. 9 is a graph showing Raman shift values of graphene prepared under a fourth experimental condition using the graphene manufacturing method according to an embodiment of the present invention.
  • 10 is a graph showing Raman shift values of graphene prepared under a fifth experimental condition using the graphene manufacturing method according to an embodiment of the present invention.
  • the residual oxygen impurity content corresponds to 3 to 5%, and high-quality graphene can be produced.
  • a Raman shift value may be confirmed by irradiating light.
  • the six first experiments individually conducted in FIG. 6 are the results of testing the output of the laser L at 30% of the maximum output, and accordingly, the intensity per unit area of the laser L is 36.36 W/mm 2 , and the unit area The exposure time to this laser L is 0.024 s.
  • the second experiment of six times individually conducted in FIG. 7 is the result of testing the output of the laser L at 50% of the maximum output, and accordingly, the intensity per unit area of the laser L is 60.61 W/mm 2 , and the unit area The exposure time to this laser L is 0.024 s.
  • the third experiment of six times individually conducted in FIG. 8 is the result of testing the output of the laser L at 70% of the maximum output, and accordingly, the intensity per unit area of the laser L is 84.85 W/mm 2 , and the unit area The exposure time to this laser L is 0.024 s.
  • the fourth experiment of six times individually conducted in FIG. 9 is the result of testing the output of the laser L at 90% of the maximum output, and accordingly, the intensity per unit area of the laser L is 109.09 W/mm 2 , and the unit area The exposure time to this laser L is 0.024 s.
  • the 5th experiment of 6 times individually conducted is the result of testing the output of the laser L at 100% of the maximum output, and accordingly, the intensity per unit area of the laser L is 121.21 W/mm 2 , and the unit area The exposure time to this laser L is 0.024 s.
  • the graphene manufacturing apparatus according to various embodiments of the present invention has been described above, the graphene manufacturing apparatus according to this embodiment is not applicable only for graphene manufacturing, and laser is irradiated to continuously provided raw materials. It will be clearly understood by those of ordinary skill in the art that the present invention can be used as an apparatus for producing a specific material.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physics & Mathematics (AREA)
  • Nanotechnology (AREA)
  • Inorganic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Engineering & Computer Science (AREA)
  • Electromagnetism (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Optics & Photonics (AREA)
  • Carbon And Carbon Compounds (AREA)

Abstract

L'invention concerne un appareil de production de graphène. L'appareil de production de graphène selon un mode de réalisation de la présente invention peut comprendre : une partie d'alimentation qui fournit de la poudre d'oxyde de graphite ou de la poudre d'oxyde de graphène ; une partie mobile, qui est accouplée pas un de ses côtés à la partie d'alimentation, comportant un corps de partie mobile dans lequel sont formés une surface mobile de largeur prédéterminée et se prolongeant dans une direction depuis un de ses côtés et un espace mobile au-dessus de la surface mobile, et qui est alimentée depuis un côté de l'espace mobile avec la poudre d'oxyde de graphite ou la poudre d'oxyde de graphène fournie par la partie d'alimentation et qui la transfère vers l'autre côté de l'espace mobile ; une partie de rayonnement laser qui émet des faisceaux laser sur la trajectoire de la poudre d'oxyde de graphite ou de la poudre d'oxyde de graphène pour produire de la poudre de graphène à partir de la poudre d'oxyde de graphite ou de la poudre d'oxyde de graphène ; et une partie de collecte qui est reliée à l'autre côté de la partie mobile, et qui sépare la poudre de graphène de la poudre d'oxyde de graphite ou de la poudre d'oxyde de graphène et collecte la poudre de graphène séparée.
PCT/KR2021/014579 2021-10-19 2021-10-19 Appareil de production de graphène WO2023068389A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2021-0138979 2021-10-19
KR1020210138979A KR102603325B1 (ko) 2021-10-19 2021-10-19 그래핀 제조 장치

Publications (1)

Publication Number Publication Date
WO2023068389A1 true WO2023068389A1 (fr) 2023-04-27

Family

ID=86058394

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2021/014579 WO2023068389A1 (fr) 2021-10-19 2021-10-19 Appareil de production de graphène

Country Status (2)

Country Link
KR (1) KR102603325B1 (fr)
WO (1) WO2023068389A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20140119950A (ko) * 2013-03-29 2014-10-13 도시바삼성스토리지테크놀러지코리아 주식회사 그래핀 제조장치 및 그 방법
KR20160117515A (ko) * 2014-02-04 2016-10-10 내셔널 유니버시티 오브 싱가포르 금속 및 결정 기판 상에 펄스 레이저를 기초로 한 대면적 그래핀의 합성 방법
US20200010324A1 (en) * 2018-07-06 2020-01-09 Savannah River Nuclear Solutions, Llc Method of Manufacturing Graphene Using Photoreduction
KR20210107945A (ko) * 2020-02-24 2021-09-02 주식회사 인포비온 에너지빔 조사를 이용한 대면적 그래핀 박막의 제조방법

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101736426B1 (ko) * 2015-12-31 2017-05-16 부산대학교 산학협력단 다층 그래핀이 코팅된 금속 나노 입자 및 이를 갖는 고에너지물질 복합체 그리고 이들의 제조 방법
KR102416232B1 (ko) * 2017-11-10 2022-07-06 한국전자통신연구원 환원된 산화그래핀의 제조 장치 및 제조 방법
JP2021063002A (ja) 2019-10-11 2021-04-22 ハリマ化成株式会社 単層グラフェンの製造方法、単層グラフェン分散体の製造方法及び単層グラフェン分散体

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20140119950A (ko) * 2013-03-29 2014-10-13 도시바삼성스토리지테크놀러지코리아 주식회사 그래핀 제조장치 및 그 방법
KR20160117515A (ko) * 2014-02-04 2016-10-10 내셔널 유니버시티 오브 싱가포르 금속 및 결정 기판 상에 펄스 레이저를 기초로 한 대면적 그래핀의 합성 방법
US20200010324A1 (en) * 2018-07-06 2020-01-09 Savannah River Nuclear Solutions, Llc Method of Manufacturing Graphene Using Photoreduction
KR20210107945A (ko) * 2020-02-24 2021-09-02 주식회사 인포비온 에너지빔 조사를 이용한 대면적 그래핀 박막의 제조방법

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
YANG CHII-RONG, TSENG SHIH-FENG, CHEN YU-TING: "Laser-induced reduction of graphene oxide powders by high pulsed ultraviolet laser irradiations", APPLIED SURFACE SCIENCE, ELSEVIER, AMSTERDAM , NL, vol. 444, 1 June 2018 (2018-06-01), Amsterdam , NL , pages 578 - 583, XP093057675, ISSN: 0169-4332, DOI: 10.1016/j.apsusc.2018.03.090 *

Also Published As

Publication number Publication date
KR20230055510A (ko) 2023-04-26
KR102603325B1 (ko) 2023-11-17

Similar Documents

Publication Publication Date Title
WO2023068389A1 (fr) Appareil de production de graphène
WO2013100456A1 (fr) Poudre de carbure de silicium, son procédé de fabrication et procédé de croissance d'un cristal unique
ES2079596T3 (es) Mezclador-separador ciclonico a co-corriente y sus aplicaciones.
KR20170097692A (ko) 질화붕소 나노튜브 강화 전기 부품
WO2023068390A1 (fr) Procédé de production de graphène et graphène ainsi produit
WO2014126273A1 (fr) Dispositif de préparation d'une nanostructure mox de haute pureté et procédé de préparation correspondant
EP1165241A1 (fr) Procede et dispositif de separation, d'un courant de gaz, de materiaux sous forme de particules et/ou de gouttes
WO2018236023A1 (fr) Méthode d'amélioration de la résistance à la traction d'un agrégat de fibres de nanotubes de carbone
WO2015190832A1 (fr) Composite de silicium-carbone, électrode négative comprenant celui-ci, batterie secondaire utilisant le composite de silicium-carbone, et procédé de préparation de composite de silicium-carbone
WO2011078628A2 (fr) Récipient de traitement thermique pour appareil de traitement thermique sous vide
DE3774261D1 (de) Garn aus kohlenstoffasern.
WO2015057019A1 (fr) Matériau thermoélectrique et son procédé de fabrication
CN106543777B (zh) 一种炭黑及其制备方法和制备装置
WO2012074319A1 (fr) Dispositif de production de faisceaux électroniques ou de rayons x à grande échelle qui utilise des fils de nanotube en carbone
WO2013100382A1 (fr) Procédé de préparation d'un composite graphène-nanotubes de carbone à l'aide de pyrolyse par pulvérisation et composite graphène-nanotubes de carbone préparé par ce procédé
WO2012015132A1 (fr) Contenant de traitement thermique pour appareil de traitement thermique à vide
CN1202724A (zh) 半导体清洗装置
WO2017069574A1 (fr) Composite de carbure de silicium et dispositif de stockage d'énergie le comprenant
WO2021241816A1 (fr) Collecteur de poussière électrostatique ayant un tube à ondes électromagnétiques comprenant un émetteur à base de nanotubes de carbone appliqué à celui-ci, et procédé d'élimination de fines particules d'air contaminé au moyen d'un collecteur de poussière électrostatique
WO2021137363A1 (fr) Émetteur de pâte de nanotubes de carbone (cnt), son procédé de fabrication et appareil de tube à rayons x l'utilisant
KR101139598B1 (ko) 일산화탄소의 환원반응을 이용한 그라핀 시트의 제조방법
WO2013058610A1 (fr) Plaque chauffante, et procédé de fabrication associé
WO2020130658A1 (fr) Film d'oxyde de graphène dopé au tungstène, son procédé de fabrication, et émetteur d'électrons le comprenant
WO2023038182A1 (fr) Méthode de préparation d'une solution de dispersion de nanofeuille de nitrure de bore hexagonal de grande surface à l'aide d'une méthode solvothermale
WO2017160121A9 (fr) Procédé de précipitation à ultra-haute température pour la fabrication de polysilicium

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 21961478

Country of ref document: EP

Kind code of ref document: A1