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WO2018183518A1 - Procédé et appareil de production de plaques de graphène non oxydées - Google Patents

Procédé et appareil de production de plaques de graphène non oxydées Download PDF

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Publication number
WO2018183518A1
WO2018183518A1 PCT/US2018/024869 US2018024869W WO2018183518A1 WO 2018183518 A1 WO2018183518 A1 WO 2018183518A1 US 2018024869 W US2018024869 W US 2018024869W WO 2018183518 A1 WO2018183518 A1 WO 2018183518A1
Authority
WO
WIPO (PCT)
Prior art keywords
graphene
reactor
mixture
graphite
graphene sheets
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/US2018/024869
Other languages
English (en)
Inventor
Boris Goldstein
Sergey Alekseev
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nano Graphene Inc
Original Assignee
Nano Graphene Inc
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 Nano Graphene Inc filed Critical Nano Graphene Inc
Publication of WO2018183518A1 publication Critical patent/WO2018183518A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • C01B32/19—Preparation by exfoliation
    • 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
    • B01J19/008—Processes for carrying out reactions under cavitation conditions
    • 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
    • B01J19/10—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor employing sonic or ultrasonic vibrations
    • 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
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/08—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor
    • B01J2219/0873—Materials to be treated
    • B01J2219/0881—Two or more materials
    • B01J2219/089—Liquid-solid
    • 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
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/19—Details relating to the geometry of the reactor
    • B01J2219/194—Details relating to the geometry of the reactor round
    • B01J2219/1941—Details relating to the geometry of the reactor round circular or disk-shaped
    • B01J2219/1942—Details relating to the geometry of the reactor round circular or disk-shaped spherical

Definitions

  • FIG.3A and FIG.3B show SEM (Scanning Electron Microscope) images of graphene platelets produced by the apparatus.
  • Raman spectra of high purity graphene sheets produced by apparatus is shown.
  • Raman analysis is very important and used to identify graphene structure, number of layers, level of crystallinity and the extent of defects present in the sheets.
  • G peak is universal for any types of carbon based materials, sometimes it could be wider or narrower depending on the material. For high quality graphitic structure, this G band should be narrower and higher in intensity, as it is seen in the spectra.
  • the most characteristic peaks for different types of graphene materials are D and 2D.
  • D peak represents extent or level of defects present in the graphene structure. The lower the D peak intensity the better the material.

Landscapes

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

Abstract

La présente invention concerne un appareil et un procédé de production de nano-feuilles de graphène non oxydées chimiquement pures ayant une épaisseur de 3 nm ou moins, à partir de cristal de graphite naturel ou synthétique par application d'ondes sonores et électromagnétiques à une solution comprenant un mélange d'eau et de particules de graphite.
PCT/US2018/024869 2017-03-28 2018-03-28 Procédé et appareil de production de plaques de graphène non oxydées Ceased WO2018183518A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201762477728P 2017-03-28 2017-03-28
US62/477,728 2017-03-28

Publications (1)

Publication Number Publication Date
WO2018183518A1 true WO2018183518A1 (fr) 2018-10-04

Family

ID=63677061

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2018/024869 Ceased WO2018183518A1 (fr) 2017-03-28 2018-03-28 Procédé et appareil de production de plaques de graphène non oxydées

Country Status (1)

Country Link
WO (1) WO2018183518A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020228931A1 (fr) * 2019-05-10 2020-11-19 Graphene Star Ltd Méthode de production de graphène

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130087446A1 (en) * 2011-10-11 2013-04-11 Aruna Zhamu One-step production of graphene materials
WO2017025973A1 (fr) * 2015-08-13 2017-02-16 B.G. Negev Technologies And Applications Ltd., At Ben-Gurion University Procédé de fabrication de graphène

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130087446A1 (en) * 2011-10-11 2013-04-11 Aruna Zhamu One-step production of graphene materials
WO2017025973A1 (fr) * 2015-08-13 2017-02-16 B.G. Negev Technologies And Applications Ltd., At Ben-Gurion University Procédé de fabrication de graphène

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020228931A1 (fr) * 2019-05-10 2020-11-19 Graphene Star Ltd Méthode de production de graphène
JP2022534663A (ja) * 2019-05-10 2022-08-03 グラフェン スター リミテッド グラフェンの製造方法
JP7624405B2 (ja) 2019-05-10 2025-01-30 グラフェン スター リミテッド グラフェンの製造方法
US12234151B2 (en) 2019-05-10 2025-02-25 Graphene Star Ltd Method for producing graphene and new form of graphene

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WO2018183518A1 (fr) Procédé et appareil de production de plaques de graphène non oxydées

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