CN105417529A - Simple production method of high-quality graphene material - Google Patents
Simple production method of high-quality graphene material Download PDFInfo
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- CN105417529A CN105417529A CN201510941926.5A CN201510941926A CN105417529A CN 105417529 A CN105417529 A CN 105417529A CN 201510941926 A CN201510941926 A CN 201510941926A CN 105417529 A CN105417529 A CN 105417529A
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- C—CHEMISTRY; METALLURGY
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- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B2204/00—Structure or properties of graphene
- C01B2204/04—Specific amount of layers or specific thickness
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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
- C01B2204/00—Structure or properties of graphene
- C01B2204/06—Graphene nanoribbons
- C01B2204/065—Graphene nanoribbons characterized by their width or by their aspect ratio
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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
- C01B2204/00—Structure or properties of graphene
- C01B2204/20—Graphene characterized by its properties
- C01B2204/22—Electronic properties
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- 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
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- 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
Abstract
The invention discloses a simple production method of a high-quality graphene material and belongs to the technical field of graphene. The method comprises technological steps as follows: 1) adding graphite, water and a mixture to a container for shear stirring, determining the surface tension of the mixed solution in real time, and adding graphite, water and/or the mixture to the mixed solution to enable the surface tension of the mixed solution to be always kept within the range of 30-60 mN/m; 2) removing a solvent from a graphene dispersion liquid obtained in Step 1) to obtain the graphene product. The method monitors the surface tension of the mixed solution in real time in the shear stirring method for the first time, so that adding amounts of various raw materials are controlled correspondingly, the preparation efficiency of graphene can be greatly improved, a large number of high-quality graphene dispersion liquids can be produced and stabilized very effectively, and the average layer number of the graphene obtained in the optimal scheme is lower than 5.
Description
Technical field
The invention belongs to technical field of graphene, be specifically related to a kind of simple production method of high-quality graphene material.
Background technology
Graphene a kind ofly to be arranged and the special two-dimensional material be interconnected according to hexagon by carbon atom, there is because of it features such as high conductivity, high mechanical strength, extra specific surface area can be used to prepare the various new devices such as high speed processor, high sensor, touch display screen, superbattery and high performance solar batteries, in various fields such as electronics, space flight military project, new forms of energy, there is significant application value.
Realize large-scale industrial production and the practical application of Graphene, the preparation method of Graphene need at least meet three important factors: high quality, in enormous quantities, low cost, although have many reports about graphene preparation method both at home and abroad at present, but from actual demands such as high quality, low cost volume productions, the graphene preparation method that great majority have been reported all has various defect.Such as, vapour deposition process can meet the requirement of large-scale production high-quality graphene, but has that cost is very high, the defect of complex process simultaneously; Micromechanics stripping method obtains single or multiple lift Graphene by directly peeling off from raw material, although the method operation is relatively simple, obtained Graphene quality is relatively high, but has the shortcomings such as consuming time, low yield, product size are wayward, is unsuitable for scale of mass production; Oxidation style is the method preparing Graphene the most frequently used at present, by using inorganic strong protonic acid (as the vitriol oil, nitrosonitric acid etc.) and strong oxidizer (as potassium permanganate etc.) pre-treatment original graphite, increase graphite layers distance, and supersound process obtains water or the organic solvent solution of Graphene further; The relatively easy volume production of the method, technique is relatively simple, but the physicals of the Graphene obtained is subject to comparatively havoc due to the effect of the materials such as strong oxidizer, and various performance significantly reduces; In recent years, people propose oxidation reduction process further and adopt strong reductant, as hydrazine class reductive agent carrys out reduction treatment graphene oxide, make the graphene product performance obtained have larger improvement, but there is shortcoming and the problems such as corrodibility is strong, toxicity is large, Environmental costs are high in the materials such as the strong reductant used in these class methods; The people such as Coleman (
j.Am.Chem.Soc.2009,
1313611 – 3620) obtain the Graphene of better performances by the method for supersound process graphite in the solution of Sodium dodecylbenzene sulfonate and water, but obtain graphene dispersing solution concentration very low (0.002 ~ 0.05g/L), be unfavorable for scale of mass production; In addition, other also have many new graphene preparation methods, but usually all can relate to large etc. the series of problems of as high in complicated process of preparation, cost, environmental hazard, high quality can be met simultaneously, graphene preparation method that is in enormous quantities, low cost three important factors is little.
Thus, in order to meet the actual demand of Graphene commercial application further, seek that a kind of technique is simple, production cost is low, and the simple and easy mass production method of higher Environmental costs and significantly reduction Graphene comprehensive physical performance can not be caused simultaneously significant.
Summary of the invention
For prior art Problems existing, the object of the invention is to design the technical scheme of the simple production method that a kind of high-quality graphene material is provided.
The simple production method of described a kind of high-quality graphene material, is characterized in that comprising following processing step:
1) graphite, water and compounding substances are added in container carry out shear agitation, the surface tension of this mixing solutions of the real time measure, and by add in this mixing solutions graphite, water and or mixture, make the surface tension of mixing solutions maintain within the scope of 30 ~ 60mN/m all the time;
2) namely graphene dispersing solution step 1) obtained obtains graphene product after removing solvent.
The simple production method of described a kind of high-quality graphene material, it is characterized in that described compounding substances is polyoxyethylene glycol, polyvinyl alcohol, alkylbenzene sulfonate, alkyl benzene sulphonate (ABS) salt derivative, napadisilate, naphthalene disulfonic acid salt derivative, anthraquinone disulfonic acid salt, anthraquinone disulfonic acid salt derivative, alkyl diphenyl ether disulfonate, alkyl diphenyl ether disulfonate derivative, sulfonated alkyl naphathalene, alkyl naphthalene sulfonic acid salt derivative, Alkyl dinaphthyl ether sulfonate, Alkyl dinaphthyl ether sulfonate derivative, carmine, Xylene Red, lure red, a kind of or several arbitrarily mixture in quinoline yellow.
The simple production method of described a kind of high-quality graphene material, is characterized in that described graphite is a kind of or several arbitrarily mixture in natural graphite, high directional heat cracking graphite, expanded graphite, crystallite synthetic graphite.
The simple production method of described a kind of high-quality graphene material, it is characterized in that the described method that desolventizes is specially in centrifugal, suction filtration, heating, drying, lyophilize, spraying dry one or more.
The simple production method of described a kind of high-quality graphene material, is characterized in that residue graphite unstripped in raw material, continues recycle as raw material.
Compared with prior art, the present invention has following beneficial effect:
1) the present invention proposes the surface tension of Real-Time Monitoring mixing solutions in shear agitation method first, thus the add-on of the various raw material of corresponding regulation and control, can greatly improve Graphene preparation efficiency, can effectively produce and stablize the dispersion liquid of a large amount of high-quality graphene, the average number of plies of preferred version gained Graphene can be less than 5 layers.
2) owing to adopting preparation method of the present invention, the addition of various raw material is not limited to concrete numerical value, and make the graphene dispersing solution concentration of acquisition very high, can reach more than 5g/L, preferred version concentration can reach more than 10g/L.This concentration system, so far in bibliographical information, adopts same mixture material to prepare the rare high density of Graphene.
3) it is very large that the graphene product that prepared by the present invention can have vesicular structure and a lateral dimension, and can reach more than 20 μm, preferred version can reach more than 60 μm, so far rare bibliographical information.
4) the higher chemical feedstockss that maybe can produce serious harm to environment of cost such as using strong oxidizer, special intercalated material, strong reductant is not related in the present invention, thus can not as conventional oxidation method havoc graphene-structured performance, thus the Graphene that present method can be made to produce possesses higher physicals, the preferred version gained Graphene specific conductivity order of magnitude is 10
4~ 10
5s/m.
5) the most of raw materials related in the present invention are common chemical feedstocks, lower cost and environmental hazard is little, and the inventive method is very simple and easy, without the need to adopting the technical process of complicated multi-step, are very applicable to large-scale industrial production.
6) preparation method of the Graphene in the present invention can meet three important factors needed for large-scale industrial production and practical application simultaneously: high quality, in enormous quantities, low cost, can possess the graphene preparation method rare report so far simultaneously showing the excellent comprehensive characteristics like this such as low cost, high density, the low number of plies, high conductance, large size.
7) conventional ultrasound preparation method is compared, the shear agitation preparation method adopted in the present invention has essence difference: the addition of various raw material is not limited to concrete numerical value, and the membership that constantly adds of each raw material makes mixing solutions viscosity improve, this directly can cause the decline of ultrasonic efficiency, and diametrically opposite therewith, the raising of soltion viscosity can directly improve the preparation efficiency that shear agitation obtains Graphene.
8) owing to adopting method of the present invention, remaining unstripped graphite raw material after preparation, without the need to through complex process, can proceed recycle, obtain graphene solution, greatly reduce production cost and enhance productivity.
Accompanying drawing explanation
The communication apparatus system example schematic of Fig. 1 for adopting in the present invention.
Fig. 2 is the Raman spectrum of the Graphene that the present invention obtains.
Fig. 3 is the atomic force microscope figure of the Graphene that the present invention obtains.
Embodiment
Below in conjunction with specific embodiment, the present invention will be further described.
Embodiment 1:
By expanded graphite, natural graphite, cetyl diphenyl ether sodium disulfonate, polyoxyethylene glycol, quinoline yellow, cetyl benzenesulfonic acid sodium is added to the water to stir with 3500rpm rotating speed with high-speed shearing emulsion machine and obtains graphene dispersing solution in 6 hours, regulate according to the surface tension of surveying in process or add various raw material at random, surface tension is made to maintain within the scope of 35 ~ 43mN/m, and then obtain upper strata high-quality graphene dispersion liquid after 30 minutes with 3000rpm rotating speed centrifugal treating, this graphene dispersing solution concentration is 6.2g/L, gained dispersion liquid is through centrifugal, suction filtration, heating, drying, after lyophilize or spraying dry, obtain graphene product.It is 3 layers that this graphene product carries out the known obtained average number of plies of Graphene of Raman spectrum test, as shown in Figure 2; Learn that Graphene lateral dimension can reach more than 40 μm through atomic force microscope observation, as shown in Figure 3; Can obtain the Graphene specific conductivity order of magnitude is after tested 10
5s/m.
Communication apparatus as described in Figure 1 can be adopted in this embodiment 1 to carry out measurement of surface tension, this communication apparatus includes reaction vessel 1 and the measuring vessel 2 of pipeline connection, be equipped with emulsification pretreatment machine 3 in reaction vessel 1, in measuring vessel 2, carry out the measurement of solution surface tension.
Embodiment 2:
Directed for height natural graphite, thermo-cracking graphite, anthraquinone disulphonate, cetyl benzenesulfonic acid sodium, famille rose are added to the water to stir with 4000rpm rotating speed with high-speed shearing emulsion machine and obtain graphene dispersing solution in 8 hours, regulate according to the surface tension of surveying in process or add various raw material at random, surface tension is made to maintain within the scope of 45 ~ 49mN/m, and then obtain upper strata high-quality graphene dispersion liquid after 40 minutes with 2000rpm rotating speed centrifugal treating, this graphene dispersing solution concentration is 5.4g/L, gained dispersion liquid, after suction filtration, obtains graphene product.The known obtained average number of plies of Graphene is 4 layers after tested, and lateral dimension can reach more than 20 μm, and the specific conductivity order of magnitude is 10
4s/m.
Embodiment 3:
By expanded graphite, natural graphite, crystallite synthetic graphite, Sodium dodecylbenzene sulfonate, polyvinyl alcohol, polyoxyethylene glycol, naphthalene disulfonate is added to the water to stir with 4200rpm rotating speed with high-speed shearing emulsion machine and obtains graphene dispersing solution in 7 hours, regulate according to the surface tension of surveying in process or add various raw material at random, surface tension is made to maintain within the scope of 33 ~ 42mN/m, and then obtain upper strata high-quality graphene dispersion liquid after 30 minutes with 3000rpm rotating speed centrifugal treating, this graphene dispersing solution concentration is 7.1g/L, gained dispersion liquid is through centrifugal, suction filtration, heating, drying, after lyophilize or spraying dry, obtain graphene product.The known obtained average number of plies of Graphene is 4 layers after tested, and lateral dimension can reach more than 30 μm, and the specific conductivity order of magnitude is 10
5s/m.
Embodiment 4:
By expanded graphite, natural graphite, quinoline yellow, Xylene Red 27, carmine, two disodium 4-dodecyl-2,4 '-oxydibenzenesulfonate, anthraquinone disulphonate is added to the water to stir with 3800rpm rotating speed with high-speed shearing emulsion machine and obtains graphene dispersing solution in 8 hours, regulate according to the surface tension of surveying in process or add various raw material at random, surface tension is made to maintain within the scope of 40 ~ 46mN/m, and then obtain upper strata high-quality graphene dispersion liquid after 35 minutes with 2500rpm rotating speed centrifugal treating, this graphene dispersing solution concentration is 5.1g/L, gained dispersion liquid is after suction filtration, obtain graphene product.The known obtained average number of plies of Graphene is 5 layers after tested, and lateral dimension can reach more than 25 μm, and the specific conductivity order of magnitude is 10
4s/m.
Embodiment 5:
By natural graphite, expanded graphite, lure red, octadecyl benzenesulfonic acid sodium, dodecyl naphthalene diether sodium disulfonate, polyoxyethylene glycol is added to the water to stir with 4500rpm rotating speed with high-speed shearing emulsion machine and obtains graphene dispersing solution in 7 hours, regulate according to the surface tension of surveying in process or add various raw material at random, surface tension is made to maintain within the scope of 32 ~ 40mN/m, and then obtain upper strata high-quality graphene dispersion liquid after 30 minutes with 3100rpm rotating speed centrifugal treating, this graphene dispersing solution concentration is 6.6g/L, gained dispersion liquid is through centrifugal, suction filtration, heating, drying, after lyophilize or spraying dry, obtain graphene product.The known obtained average number of plies of Graphene is 3 layers after tested, and lateral dimension can reach more than 35 μm, and the specific conductivity order of magnitude is 10
5s/m.
Embodiment 6:
By expanded graphite, natural graphite, polyoxyethylene glycol, naphthalene disulfonate, quinoline yellow, carmine, disodium 4-dodecyl-2,4 '-oxydibenzenesulfonate is added to the water to stir with 3500rpm rotating speed with high-speed shearing emulsion machine and obtains graphene dispersing solution in 8 hours, regulate according to the surface tension of surveying in process or add various raw material at random, surface tension is made to maintain within the scope of 39 ~ 48mN/m, and then obtain upper strata high-quality graphene dispersion liquid after 30 minutes with 3000rpm rotating speed centrifugal treating, this graphene dispersing solution concentration is 5.5g/L, gained dispersion liquid is after suction filtration, obtain graphene product.The known obtained average number of plies of Graphene is 3 layers after tested, and lateral dimension can reach more than 45 μm, and the specific conductivity order of magnitude is 10
5s/m.
Embodiment 7:
By expanded graphite, natural graphite, Sodium dodecylbenzene sulfonate, lure red, Witco 1298 Soft Acid trolamine, quinoline yellow is added to the water to stir with 3650rpm rotating speed with high-speed shearing emulsion machine and obtains graphene dispersing solution in 8 hours, regulate according to the surface tension of surveying in process or add various raw material at random, surface tension is made to maintain within the scope of 34 ~ 44mN/m, and then obtain upper strata high-quality graphene dispersion liquid after 30 minutes with 3000rpm rotating speed centrifugal treating, this graphene dispersing solution concentration is 8.2g/L, gained dispersion liquid is after suction filtration, obtain graphene product.The known obtained average number of plies of Graphene is 4 layers after tested, and lateral dimension can reach more than 20 μm, and the specific conductivity order of magnitude is 10
5s/m.
Embodiment 8:
By natural graphite, expanded graphite, polyvinyl alcohol, anthraquinone disulphonate, Xylene Red 27, cetyl diphenyl ether sodium disulfonate, dodecyl naphthalene disulfonate is added to the water to stir with 4800rpm rotating speed with high-speed shearing emulsion machine and obtains graphene dispersing solution in 8 hours, regulate according to the surface tension of surveying in process or add various raw material at random, surface tension is made to maintain within the scope of 31 ~ 40mN/m, and then obtain upper strata high-quality graphene dispersion liquid after 45 minutes with 2600rpm rotating speed centrifugal treating, this graphene dispersing solution concentration is 6.1g/L, gained dispersion liquid is after suction filtration, obtain graphene product.The known obtained average number of plies of Graphene is 4 layers after tested, and lateral dimension can reach more than 36 μm, and the specific conductivity order of magnitude is 10
4s/m.
Embodiment 9:
By natural graphite, expanded graphite, polyoxyethylene glycol, polyvinyl alcohol, Witco 1298 Soft Acid trolamine, quinoline yellow, dodecyl dinaphthyl ether sodium disulfonate, anthraquinone disulphonate, disodium 4-dodecyl-2,4 '-oxydibenzenesulfonate is added to the water to stir with 3700rpm rotating speed with high-speed shearing emulsion machine and obtains graphene dispersing solution in 8 hours, regulate according to the surface tension of surveying in process or add various raw material at random, surface tension is made to maintain within the scope of 38 ~ 49mN/m, and then obtain upper strata high-quality graphene dispersion liquid after 35 minutes with 2800rpm rotating speed centrifugal treating, this graphene dispersing solution concentration is 6.4g/L, gained dispersion liquid is after suction filtration, obtain graphene product.The known obtained average number of plies of Graphene is 3 layers after tested, and lateral dimension can reach more than 60 μm, and the specific conductivity order of magnitude is 10
4s/m.
Embodiment 10:
By natural graphite, expanded graphite, two disodium 4-dodecyl-2,4 '-oxydibenzenesulfonate, Xylene Red 27, carmine, cetyl benzenesulfonic acid sodium, naphthalene disulfonate is added to the water to stir with 4800rpm rotating speed with high-speed shearing emulsion machine and obtains graphene dispersing solution in 10 hours, regulate according to the surface tension of surveying in process or add various raw material at random, surface tension is made to maintain within the scope of 45 ~ 55mN/m, and then obtain upper strata high-quality graphene dispersion liquid after 38 minutes with 2700rpm rotating speed centrifugal treating, this graphene dispersing solution concentration is 5.1g/L, gained dispersion liquid is after suction filtration, obtain graphene product.The known obtained average number of plies of Graphene is 4 layers after tested, and lateral dimension is more than 21 μm, and the specific conductivity order of magnitude is 10
4s/m.
Claims (5)
1. a simple production method for high-quality graphene material, is characterized in that comprising following processing step:
1) graphite, water and compounding substances are added in container carry out shear agitation, the surface tension of this mixing solutions of the real time measure, and by add in this mixing solutions graphite, water and or mixture, make the surface tension of mixing solutions maintain within the scope of 30 ~ 60mN/m all the time;
2) namely graphene dispersing solution step 1) obtained obtains graphene product after removing solvent.
2. the simple production method of a kind of high-quality graphene material as claimed in claim 1, it is characterized in that described compounding substances is polyoxyethylene glycol, polyvinyl alcohol, alkylbenzene sulfonate, alkyl benzene sulphonate (ABS) salt derivative, napadisilate, naphthalene disulfonic acid salt derivative, anthraquinone disulfonic acid salt, anthraquinone disulfonic acid salt derivative, alkyl diphenyl ether disulfonate, alkyl diphenyl ether disulfonate derivative, sulfonated alkyl naphathalene, alkyl naphthalene sulfonic acid salt derivative, Alkyl dinaphthyl ether sulfonate, Alkyl dinaphthyl ether sulfonate derivative, carmine, Xylene Red, lure red, a kind of or several arbitrarily mixture in quinoline yellow.
3. the simple production method of a kind of high-quality graphene material as claimed in claim 1, is characterized in that described graphite is a kind of or several arbitrarily mixture in natural graphite, high directional heat cracking graphite, expanded graphite, crystallite synthetic graphite.
4. the simple production method of a kind of high-quality graphene material as claimed in claim 1, it is characterized in that the described method that desolventizes is specially in centrifugal, suction filtration, heating, drying, lyophilize, spraying dry one or more.
5. the simple production method of a kind of high-quality graphene material as claimed in claim 1, is characterized in that residue graphite unstripped in raw material, continues recycle as raw material.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107585753A (en) * | 2017-08-23 | 2018-01-16 | 杭州万杵材料科技有限公司 | A kind of production method of big size graphene material |
| CN113490641A (en) * | 2019-02-28 | 2021-10-08 | 积水化学工业株式会社 | Flaked graphite and method for producing same |
| GB2603861A (en) * | 2021-02-11 | 2022-08-17 | Cami Consultancy Ltd | Graphene Production Method |
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 |
| CN103373724A (en) * | 2012-04-17 | 2013-10-30 | 安炬科技股份有限公司 | Method for preparing graphene composite material |
| CN103827023A (en) * | 2011-07-19 | 2014-05-28 | 澳大利亚国立大学 | Exfoliating laminar material by ultrasonication in surfactant |
| CN104176727A (en) * | 2013-05-28 | 2014-12-03 | 安炬科技股份有限公司 | Graphene suspended solution and making method thereof |
| CN104495828A (en) * | 2014-12-31 | 2015-04-08 | 深圳市铭晶科技有限公司 | Method for preparing graphene through liquid-phase stripping method |
-
2015
- 2015-12-16 CN CN201510941926.5A patent/CN105417529B/en active Active
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 |
| CN103827023A (en) * | 2011-07-19 | 2014-05-28 | 澳大利亚国立大学 | Exfoliating laminar material by ultrasonication in surfactant |
| CN103373724A (en) * | 2012-04-17 | 2013-10-30 | 安炬科技股份有限公司 | Method for preparing graphene composite material |
| CN104176727A (en) * | 2013-05-28 | 2014-12-03 | 安炬科技股份有限公司 | Graphene suspended solution and making method thereof |
| CN104495828A (en) * | 2014-12-31 | 2015-04-08 | 深圳市铭晶科技有限公司 | Method for preparing graphene through liquid-phase stripping method |
Non-Patent Citations (1)
| Title |
|---|
| KEITH R. PATON ET AL: "Scalable production of large quantities of defect-free few-layer graphene by shear exfoliation in liquids", 《NATURE MATERIALS》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107585753A (en) * | 2017-08-23 | 2018-01-16 | 杭州万杵材料科技有限公司 | A kind of production method of big size graphene material |
| CN107585753B (en) * | 2017-08-23 | 2020-03-24 | 阮伟 | Production method of large-size graphene material |
| CN113490641A (en) * | 2019-02-28 | 2021-10-08 | 积水化学工业株式会社 | Flaked graphite and method for producing same |
| GB2603861A (en) * | 2021-02-11 | 2022-08-17 | Cami Consultancy Ltd | Graphene Production Method |
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Effective date of registration: 20191204 Address after: 200050 No. 390, Anhua Road, Shanghai, Changning District Patentee after: Ruan Wei Address before: Room 19, No. 101-44, No. 1399, good road, front street, Cang Qian street, Yuhang District, Hangzhou, Zhejiang Patentee before: Hangzhou Wan pestle Mstar Technology Ltd |