WO2016096484A1 - Procédé de production de graphène - Google Patents
Procédé de production de graphène Download PDFInfo
- Publication number
- WO2016096484A1 WO2016096484A1 PCT/EP2015/078696 EP2015078696W WO2016096484A1 WO 2016096484 A1 WO2016096484 A1 WO 2016096484A1 EP 2015078696 W EP2015078696 W EP 2015078696W WO 2016096484 A1 WO2016096484 A1 WO 2016096484A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- graphene
- liquid
- suspension
- graphene precursor
- surfactant
- Prior art date
Links
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
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y30/00—Nanotechnology for materials or surface science, e.g. nanocomposites
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2002/00—Crystal-structural characteristics
- C01P2002/80—Crystal-structural characteristics defined by measured data other than those specified in group C01P2002/70
- C01P2002/82—Crystal-structural characteristics defined by measured data other than those specified in group C01P2002/70 by IR- or Raman-data
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/01—Particle morphology depicted by an image
- C01P2004/04—Particle morphology depicted by an image obtained by TEM, STEM, STM or AFM
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/20—Particle morphology extending in two dimensions, e.g. plate-like
- C01P2004/24—Nanoplates, i.e. plate-like particles with a thickness from 1-100 nanometer
Definitions
- the invention relates to a method of producing graphene from a graphene precursor using mechanical treatment of the graphene precursor.
- the top-down route is basically the exfoliation of a graphene precursor, wherein the graphene precursor comprises natural graphite or synthetic graphite.
- the exfoliation method comprises chemical treatment of the graphene precursor, which often includes toxic chemicals.
- the graphene precursor is first treated with strong oxidants resulting in the forming of graphene oxide.
- Graphene oxide can be dispersed easily in solvents, including water, and is subsequently subjected to a reducing step by treating the graphene oxide again with chemicals, for instance with hydrazine.
- This exfoliation method requires a number of subsequent processing steps which makes this also a time consuming method. If such a method is to be carried out on an industrial scale the chemicals needed would be substantial, requiring adequate safety and environmental measures.
- the quality of the graphene resulting from this exfoliation method can be substantially less than the quality of the graphene resulting from the method according to the bottom-up route.
- one or more of the objectives of the invention are realized by providing a method for producing graphene, which comprises the steps of:
- the mechanical treatment comprises that the graphene precursor suspended in the liquid is subjected to at least two different mechanical treatments at the same time.
- graphene precursor shall mean a solution or compound comprising natural graphite or synthetic graphite.
- graphene shall refer to single layer graphene as well as to multilayer stacks of graphene comprising 20 layers or less of graphene, unless indicated differently.
- the time needed to produce graphene is considerable reduced in comparison to the usual method wherein mechanical and chemical treatment steps are carried out subsequently.
- milling times of 24 hours and more are necessary whereas with the method according the invention the time needed to carry out the method is less than 3 hours.
- the graphene produced according to the method shows a high yield of single and bilayer graphene.
- the mechanical treatment comprises a mixing operation and sonication operation.
- the milling operation is a high shear mixing operation.
- This milling operation is carried out with high shear mixers which operate at speeds in the order of 6000 - 9000 rpm.
- the sonication operation is preferably a ultrasonication operation wherein the liquid with the graphene precursor in suspension is subjected to ultrasonic waves of 20 kHz and more.
- the sound waves propagating through the liquid generate compression and rarefaction cycles, the rarefaction creating voids which collapse during compression.
- the frequency of the ultrasonication is in the range of 30 - 60 kHz, more preferably in the range of 40 - 50 kHz.
- the liquid with the graphene precursor in suspension is cooled.
- the temperature of the liquid with the graphene precursor in suspension is cooled to a temperature below 100°C. More preferably the temperature of the liquid with the graphene precursor in suspension is kept in a range between 0 - 50°C, and even more preferably to about room temperature in a range between 15 - 35°C.
- the method includes the addition of a surfactant to the liquid with the graphene precursor.
- the liquid is water and the surfactant is a water soluble surfactant.
- the surfactant is a tetra butyl ammonium surfactant or an alkylol ammonium surfactant. Good results were obtained with ANTI-TERRA ® -250, a solution of an alkylol ammonium salt of a higher molecular weight acidic polymer, a surfactant supplied by BYK Chemie GmbH.
- the surfactant is preferably added in a concentration of 0.1 - 10.0 mg/ml, preferably 0.2 - 5.0 mg/ml.
- the method according to the invention is suitable to be carried out batch- wise, but it is also possible to carry out the method in a continuous or semi- continuous process.
- fig.1 shows schematically a device to apply the method for producing graphene
- fig.2 shows a Raman diagram of the produced graphene
- fig.3 shows a TEM image and an electron diffraction diagram of the produced graphene.
- a device for applying the method comprising a vessel with a cooling liquid and a pipe system 5 for the supply and drainage of the cooling liquid from the vessel.
- the temperature of the cooling liquid is measured with a probe 1 and the temperature data is used to control the supply and drainage of the cooling liquid. With water as a cooling liquid the temperature can be controlled adequately.
- a sample cup 6 is placed containing the liquid with the graphene precursor in suspension.
- a high shear mixer 2 is provided extending with the shear generating element in the liquid with the graphene precursor in suspension.
- the shear mixer is provided with a speed controller unit 3 with which the speed of the mixture can be adjusted.
- a further temperature measuring probe 4 is immersed in the liquid with the graphene precursor in suspension and is also used to control the temperature of the cooling liquid contained in the vessel.
- a ultrasonicator 7 is immersed in the cooling liquid. By operating the ultrasonicator the liquid with the graphene precursor in suspension in sample cup 6 is subjected to the sound waves propagating from ultrasonicator 7.
- a Raman spectrum of a graphene sample obtained by the method according the invention was performed at room temperature with a Renishaw spectrometer at 514nm, with notch filters cutting at 100 cm-1 .
- the vertical axis shows the intensity of the scattered Raman signal and the horizontal axis shows the Raman shift in cm-1 when excited by a laser radiation with a wavelength of 514 nm.
- the principle peaks observed in the graphene Raman spectrum are the D, G and 2D peaks at 1350 cm-1 , 1580 cm-1 and 2700 cm-1 respectively.
- the spectrum above indicates that the synthesized material contains a high content of monolayer graphene as indicated by the very symmetrical 2D peak with a Lorentzian profile centred at 2692 cm-1 .
- the image to the left in fig. 3 shows a transmission electron micrograph of a graphene flake.
- the image to the right is an electron diffraction pattern obtained from the same sample. It shows the typical six-fold symmetry expected for graphene and graphite.
- the electron diffraction spots are labelled using Miller- Bravais indices (hkil). The ratio of identified peak intensities of 0th order and 1 st order spots is indicative of single or bilayer graphene depending on the area under the electron beam.
- Ultraviolet visible absorption spectra of the test shows the concentration of final graphene based suspension (after sonication, centrifuging at l OOOrpm for 1 hr and separating the supernatant) in the range of 0.063 - 0.1 1 mg/ltr which is much higher than values reported in literature.
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Nanotechnology (AREA)
- Inorganic Chemistry (AREA)
- Carbon And Carbon Compounds (AREA)
Abstract
L'invention concerne un procédé de production de graphène comprenant les étapes consistant à disperser un précurseur de graphène dans un liquide afin de créer une suspension du précurseur de graphène dans le liquide et à soumettre la suspension du précurseur de graphène dans le liquide à au moins deux traitements mécaniques différents en même temps.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP15805465.0A EP3233726A1 (fr) | 2014-12-19 | 2015-12-04 | Procédé de production de graphène |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP14020118.7 | 2014-12-19 | ||
EP14020118 | 2014-12-19 | ||
EP15020048.3A EP3072851A1 (fr) | 2015-03-27 | 2015-03-27 | Procédé de fabrication de graphène |
EP15020048.3 | 2015-03-27 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2016096484A1 true WO2016096484A1 (fr) | 2016-06-23 |
Family
ID=54834813
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2015/078696 WO2016096484A1 (fr) | 2014-12-19 | 2015-12-04 | Procédé de production de graphène |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP3233726A1 (fr) |
WO (1) | WO2016096484A1 (fr) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2018051095A1 (fr) * | 2016-09-15 | 2018-03-22 | University Of Sunderland | Procédé de formation de nanoplaquettes de graphène, nanoplaquettes de graphène ainsi obtenues et composites comprenant lesdites nanoplaquettes |
CN110621809A (zh) * | 2017-04-26 | 2019-12-27 | 烯克斯·索尼娅技术有限公司 | 半导体材料或导体材料的制备方法及其用途 |
WO2020012500A1 (fr) | 2018-07-09 | 2020-01-16 | Log 9 Materials Scientific Private Limited | Système et procédé de synthèse en masse de graphène et de ses dérivés |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20090026086A1 (en) * | 2007-07-27 | 2009-01-29 | Aruna Zhamu | Electrochemical method of producing nano-scaled graphene platelets |
US20110017585A1 (en) * | 2009-07-27 | 2011-01-27 | Aruna Zhamu | Mass production of pristine nano graphene materials |
FR2952049A1 (fr) * | 2009-11-03 | 2011-05-06 | Centre Nat Rech Scient | Preparation de graphene par amincissement mecanique de materiaux graphitiques |
WO2014122465A1 (fr) * | 2013-02-07 | 2014-08-14 | Carbonlab Limited | Procédé de production de graphène |
CN104058396A (zh) * | 2014-07-14 | 2014-09-24 | 复旦大学 | 一种层数可控的大尺寸、高质量石墨烯制备方法 |
-
2015
- 2015-12-04 WO PCT/EP2015/078696 patent/WO2016096484A1/fr active Application Filing
- 2015-12-04 EP EP15805465.0A patent/EP3233726A1/fr not_active Withdrawn
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20090026086A1 (en) * | 2007-07-27 | 2009-01-29 | Aruna Zhamu | Electrochemical method of producing nano-scaled graphene platelets |
US20110017585A1 (en) * | 2009-07-27 | 2011-01-27 | Aruna Zhamu | Mass production of pristine nano graphene materials |
FR2952049A1 (fr) * | 2009-11-03 | 2011-05-06 | Centre Nat Rech Scient | Preparation de graphene par amincissement mecanique de materiaux graphitiques |
WO2014122465A1 (fr) * | 2013-02-07 | 2014-08-14 | Carbonlab Limited | Procédé de production de graphène |
CN104058396A (zh) * | 2014-07-14 | 2014-09-24 | 复旦大学 | 一种层数可控的大尺寸、高质量石墨烯制备方法 |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2018051095A1 (fr) * | 2016-09-15 | 2018-03-22 | University Of Sunderland | Procédé de formation de nanoplaquettes de graphène, nanoplaquettes de graphène ainsi obtenues et composites comprenant lesdites nanoplaquettes |
CN110621809A (zh) * | 2017-04-26 | 2019-12-27 | 烯克斯·索尼娅技术有限公司 | 半导体材料或导体材料的制备方法及其用途 |
CN110621809B (zh) * | 2017-04-26 | 2022-09-13 | 烯克斯·索尼娅技术有限公司 | 半导体材料或导体材料的制备方法及其用途 |
WO2020012500A1 (fr) | 2018-07-09 | 2020-01-16 | Log 9 Materials Scientific Private Limited | Système et procédé de synthèse en masse de graphène et de ses dérivés |
CN112672978A (zh) * | 2018-07-09 | 2021-04-16 | 对数9物质科学私人有限公司 | 大量合成石墨烯和衍生物的系统和方法 |
EP3820814A4 (fr) * | 2018-07-09 | 2022-03-30 | Log 9 Materials Scientific Private Limited | Système et procédé de synthèse en masse de graphène et de ses dérivés |
Also Published As
Publication number | Publication date |
---|---|
EP3233726A1 (fr) | 2017-10-25 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
Korepanov et al. | Carbon structure in nanodiamonds elucidated from Raman spectroscopy | |
Malaki et al. | MXenes and ultrasonication | |
Lin et al. | Laser-ablation production of graphene oxide nanostructures: from ribbons to quantum dots | |
Arabpour et al. | Preparation and optimization of novel graphene oxide and adsorption isotherm study of methylene blue | |
Ali et al. | Effect of sonication conditions: solvent, time, temperature and reactor type on the preparation of micron sized vermiculite particles | |
WO2016096484A1 (fr) | Procédé de production de graphène | |
Nebogatikova et al. | Fluorinated graphene dielectric films obtained from functionalized graphene suspension: preparation and properties | |
Ding et al. | Exploring the blue luminescence origin of nitrogen-doped carbon dots by controlling the water amount in synthesis | |
Zhang et al. | Multifunctional Zn–Al layered double hydroxides for surface-enhanced Raman scattering and surface-enhanced infrared absorption | |
Gholizadeh et al. | Facile synthesis of nanographene by a high-yield and scalable method | |
Rahaman et al. | Understanding the effect of surfactants’ hydrophobicity on the growth of lanthanum sulfide nanospheres in water-in-oil microemulsions: A detailed dynamic light scattering, small angle X-ray scattering, and microscopy study | |
EP3072851A1 (fr) | Procédé de fabrication de graphène | |
AU2017304275B2 (en) | An improved method for the synthesis of graphene oxide | |
Lebedev et al. | Microwave plasma in liquid n-heptane: a study of plasma-chemical reaction products | |
Neira‐Velázquez et al. | Surface modification of nanoclays by plasma polymerization of ethylene | |
Ren et al. | Engineering UV-emitting defects in h-BN nanodots by a top-down route | |
Jirásek et al. | Hydroxylation and self-assembly of colloidal hydrogenated nanodiamonds by aqueous oxygen radicals from atmospheric pressure plasma jet | |
Pelletier et al. | Influence of layer charge on the hydroxyl stretching of trioctahedral clay minerals: A vibrational study of synthetic Na-and K-saponites | |
Wang et al. | Synthesis and structure of molybdenum diselenide nanosheets produced from MoO3 and Se powders | |
JP7090811B2 (ja) | 気液物質移動による炭素材料のその場製造および機能化ならびのその使用 | |
Machida et al. | Expansion of orderly stacked metakaolinite layers and order destruction using a kaolinite-tetraphenylphosphonium chloride intercalation compound | |
Azadbakht et al. | Synthesis and characterization of acrylic fibers with antibacterial silver nanoparticles | |
Pol’shchikov et al. | Composite materials based on graphene nanoplatelets and polypropylene derived via in situ polymerization | |
EP3072852A1 (fr) | Procédé de fabrication de graphène | |
EP3248939A1 (fr) | Particules de silicone organofonctionnelle, son procede de fabrication et d'utilisation |
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: 15805465 Country of ref document: EP Kind code of ref document: A1 |
|
REEP | Request for entry into the european phase |
Ref document number: 2015805465 Country of ref document: EP |
|
NENP | Non-entry into the national phase |
Ref country code: DE |