CN114873584A - Oily graphene dispersion liquid with strong dispersion stability and high monolayer rate and preparation method thereof - Google Patents
Oily graphene dispersion liquid with strong dispersion stability and high monolayer rate and preparation method thereof Download PDFInfo
- Publication number
- CN114873584A CN114873584A CN202210494405.XA CN202210494405A CN114873584A CN 114873584 A CN114873584 A CN 114873584A CN 202210494405 A CN202210494405 A CN 202210494405A CN 114873584 A CN114873584 A CN 114873584A
- Authority
- CN
- China
- Prior art keywords
- organic solvent
- dispersion liquid
- graphite
- methylimidazole
- graphene dispersion
- 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.)
- Pending
Links
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 83
- 229910021389 graphene Inorganic materials 0.000 title claims abstract description 56
- 239000006185 dispersion Substances 0.000 title claims abstract description 51
- 239000007788 liquid Substances 0.000 title claims abstract description 35
- 239000002356 single layer Substances 0.000 title claims abstract description 17
- 238000002360 preparation method Methods 0.000 title abstract description 13
- 239000003960 organic solvent Substances 0.000 claims abstract description 37
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 24
- 239000010439 graphite Substances 0.000 claims abstract description 24
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical group ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000002608 ionic liquid Substances 0.000 claims abstract description 5
- YDRYLMNFLKANKC-UHFFFAOYSA-N 1,3-dimethyl-1,2-dihydroimidazol-1-ium;iodide Chemical compound [I-].CN1C[NH+](C)C=C1 YDRYLMNFLKANKC-UHFFFAOYSA-N 0.000 claims abstract description 3
- 229910021383 artificial graphite Inorganic materials 0.000 claims abstract description 3
- 239000000203 mixture Substances 0.000 claims abstract 2
- 238000000034 method Methods 0.000 claims description 9
- -1 1-ethyl-3-methylimidazole tetrafluoroborate Chemical compound 0.000 claims description 8
- PBIDWHVVZCGMAR-UHFFFAOYSA-N 1-methyl-3-prop-2-enyl-2h-imidazole Chemical compound CN1CN(CC=C)C=C1 PBIDWHVVZCGMAR-UHFFFAOYSA-N 0.000 claims description 6
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 claims description 6
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 claims description 6
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 6
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 claims description 4
- UCNXKXMSXNNRNC-UHFFFAOYSA-N 1,3-dimethyl-2h-imidazole;methyl hydrogen sulfate Chemical compound COS(O)(=O)=O.CN1CN(C)C=C1 UCNXKXMSXNNRNC-UHFFFAOYSA-N 0.000 claims description 3
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 claims description 3
- ZXLOSLWIGFGPIU-UHFFFAOYSA-N 1-ethyl-3-methyl-1,2-dihydroimidazol-1-ium;acetate Chemical compound CC(O)=O.CCN1CN(C)C=C1 ZXLOSLWIGFGPIU-UHFFFAOYSA-N 0.000 claims description 2
- WWFKDEYBOOGHKL-UHFFFAOYSA-N 1-ethyl-3-methyl-1,2-dihydroimidazol-1-ium;bromide Chemical compound Br.CCN1CN(C)C=C1 WWFKDEYBOOGHKL-UHFFFAOYSA-N 0.000 claims description 2
- JCTJNVCEWUQPMB-UHFFFAOYSA-N 1-ethyl-3-methyl-1,2-dihydroimidazol-1-ium;methyl sulfate Chemical compound COS([O-])(=O)=O.CC[NH+]1CN(C)C=C1 JCTJNVCEWUQPMB-UHFFFAOYSA-N 0.000 claims description 2
- AFSJUFFXOPXIOH-UHFFFAOYSA-N 1-ethyl-3-methyl-1,2-dihydroimidazol-1-ium;trifluoromethanesulfonate Chemical compound CC[NH+]1CN(C)C=C1.[O-]S(=O)(=O)C(F)(F)F AFSJUFFXOPXIOH-UHFFFAOYSA-N 0.000 claims description 2
- COELWDHEVBNFLF-UHFFFAOYSA-N 1-ethyl-3-methyl-2H-imidazole hydroiodide Chemical compound I.CCN1CN(C)C=C1 COELWDHEVBNFLF-UHFFFAOYSA-N 0.000 claims description 2
- ZVSNCWPOEUHDNE-UHFFFAOYSA-N 3-benzyl-1-methyl-1,2-dihydroimidazol-1-ium;bromide Chemical compound [Br-].C1=C[NH+](C)CN1CC1=CC=CC=C1 ZVSNCWPOEUHDNE-UHFFFAOYSA-N 0.000 claims description 2
- HBCNUSPKBMKRLV-UHFFFAOYSA-N 3-benzyl-1-methyl-1,2-dihydroimidazol-1-ium;chloride Chemical compound [Cl-].C1=CN(C)C[NH+]1CC1=CC=CC=C1 HBCNUSPKBMKRLV-UHFFFAOYSA-N 0.000 claims description 2
- CPELXLSAUQHCOX-UHFFFAOYSA-M Bromide Chemical compound [Br-] CPELXLSAUQHCOX-UHFFFAOYSA-M 0.000 claims description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 claims description 2
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 claims description 2
- 230000009471 action Effects 0.000 claims description 2
- IWRMHJYRXMAJNR-UHFFFAOYSA-N dimethyl hydrogen phosphate 1,3-dimethyl-2H-imidazole Chemical compound COP(=O)(OC)O.CN1CN(C=C1)C IWRMHJYRXMAJNR-UHFFFAOYSA-N 0.000 claims description 2
- VITQXNLPXZIPHQ-UHFFFAOYSA-N dimethyl phosphate;3-ethyl-1-methyl-1,2-dihydroimidazol-1-ium Chemical compound COP([O-])(=O)OC.CCN1C[NH+](C)C=C1 VITQXNLPXZIPHQ-UHFFFAOYSA-N 0.000 claims description 2
- 230000001804 emulsifying effect Effects 0.000 claims description 2
- XMBWDFGMSWQBCA-UHFFFAOYSA-N hydrogen iodide Chemical compound I XMBWDFGMSWQBCA-UHFFFAOYSA-N 0.000 claims description 2
- 238000010008 shearing Methods 0.000 claims description 2
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 claims description 2
- 238000004506 ultrasonic cleaning Methods 0.000 claims description 2
- 239000012046 mixed solvent Substances 0.000 claims 1
- 238000005485 electric heating Methods 0.000 abstract description 4
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 abstract description 2
- 238000000576 coating method Methods 0.000 abstract description 2
- 239000002482 conductive additive Substances 0.000 abstract description 2
- 238000005265 energy consumption Methods 0.000 abstract description 2
- 230000017525 heat dissipation Effects 0.000 abstract description 2
- 238000011031 large-scale manufacturing process Methods 0.000 abstract description 2
- 229910052744 lithium Inorganic materials 0.000 abstract description 2
- 239000000463 material Substances 0.000 abstract description 2
- 239000002904 solvent Substances 0.000 abstract 3
- 239000003990 capacitor Substances 0.000 abstract 1
- 239000013078 crystal Substances 0.000 description 4
- 238000005054 agglomeration Methods 0.000 description 2
- 230000002776 aggregation Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000011259 mixed solution Substances 0.000 description 2
- 239000000523 sample Substances 0.000 description 2
- 238000001228 spectrum Methods 0.000 description 2
- 238000009210 therapy by ultrasound Methods 0.000 description 2
- 238000005303 weighing Methods 0.000 description 2
- MNYOKDIIUJDYBM-UHFFFAOYSA-N 1-benzyl-3-methyl-2h-imidazole Chemical class C1=CN(C)CN1CC1=CC=CC=C1 MNYOKDIIUJDYBM-UHFFFAOYSA-N 0.000 description 1
- MCTWTZJPVLRJOU-UHFFFAOYSA-N 1-methyl-1H-imidazole Chemical compound CN1C=CN=C1 MCTWTZJPVLRJOU-UHFFFAOYSA-N 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000001878 scanning electron micrograph Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
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
- C01B32/19—Preparation by exfoliation
-
- 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
-
- 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
- C01B2204/02—Single layer graphene
-
- 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
- C01B2204/04—Specific amount of layers or specific thickness
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/54—Improvements relating to the production of bulk chemicals using solvents, e.g. supercritical solvents or ionic liquids
Abstract
The invention provides an oily graphene dispersion liquid with strong dispersion stability, high single-layer rate and high conductivity and a preparation method thereof. The oily graphene dispersion liquid comprises graphite and an organic solvent, the flake graphite and the organic solvent form the oily graphene dispersion liquid, the graphite in the oily graphene dispersion liquid is one or more of graphite powder, flake graphite, artificial graphite, expandable graphite and expanded graphite, and the organic solvent comprises an organic solvent I and an organic solvent II. The first organic solvent is chloroform and other solvents, and the second organic solvent is ionic liquid of 1, 3-dimethyl imidazole iodide and other solvents. And mixing the organic solvent I and the organic solvent II according to a volume ratio of 60:40-95:5, taking the mixture as a solvent, premixing, dispersing in a high-pressure micro-jet homogenizer for preparation, and circulating for 10-200 times to obtain the oily graphene dispersion liquid with high single-layer rate, high conductivity and strong dispersion stability. The preparation method provided by the invention is simple, high in stripping efficiency, good in product quality, low in energy consumption, easy for large-scale production, wide in application prospect, and capable of being used as a conductive additive to be applied to the fields of graphene electric heating films, lithium batteries, super capacitors, conductive coatings, graphene heat dissipation materials and the like.
Description
Technical Field
The invention relates to the technical field of graphene, in particular to an oily graphene dispersion liquid with strong dispersion stability and high monolayer rate and a preparation method thereof.
Background
Graphene has excellent mechanical, electronic, optical and thermal properties, and has been widely used in the fields of nanoelectronics, energy storage, catalysis, biosensors, and the like. In practical application, however, the two-dimensional graphene sheets are very easy to agglomerate, and are difficult to disperse uniformly in the composite material, so that the original characteristics of graphene are greatly weakened. Therefore, graphene needs to be dispersed in an organic solvent or a surfactant aqueous solution, and single-layer dispersion of graphene is achieved by electrostatic repulsion or intermolecular force.
The uniform and stable dispersion liquid is an important condition for application and research of graphene in various fields, but the graphene dispersion liquid reported at present is low in concentration and low in single-layer content, and development of graphene is limited.
Therefore, it is necessary to provide a novel oily graphene dispersion and a preparation method thereof to solve the above technical problems.
The oil-dispersible graphene with high single-layer rate, good dispersion performance and high conductivity is directly prepared by adopting a liquid-phase stripping method, and the graphene electric heating film prepared by adopting the graphene electric heating film has the advantages of high heat speed, uniform heating, higher heat conversion efficiency, lower cost, low heating voltage, energy conservation and environmental protection, and is expected to play an important role in various fields of military use and civil use.
Disclosure of Invention
In order to solve the technical problems, the invention provides an oily graphene dispersion liquid with strong dispersion stability, high single-layer rate and high conductivity and a preparation method thereof.
In order to achieve the purpose, the invention provides the following technical scheme:
the oily graphene dispersion liquid with strong dispersion stability comprises graphite and an organic solvent, wherein crystalline flake graphite and the organic solvent form the oily graphene dispersion liquid, and the graphite in the oily graphene dispersion liquid is one or more of graphite powder, crystalline flake graphite, artificial graphite, expandable graphite and expanded graphite.
As a further scheme of the invention: the organic solvent consists of an organic solvent I and an organic solvent II.
As a further scheme of the invention: the first organic solvent is chloroform, dimethyl sulfoxide, benzene, N-methyl pyrrolidone, N-dimethylformamide, ethylene glycol and tetrahydrofuran.
As a further scheme of the invention: the organic solvent II is an ionic liquid, and the ionic liquid is 1, 3-dimethylimidazole iodide, 1, 3-dimethylimidazole methyl sulfate, 1, 3-dimethylimidazole dimethyl phosphate, 1-ethyl-3-methylimidazole bromide, 1-ethyl-3-methylimidazole iodide, 1-ethyl-3-methylimidazole methyl sulfate, 1-ethyl-3-methylimidazole dimethyl phosphate, 1-ethyl-3-methylimidazole tetrafluoroborate, 1-ethyl-3-methylimidazole hexafluorophosphate, 1-ethyl-3-methylimidazole trifluoromethanesulfonate, 1-ethyl-3-methylimidazole acetate, 1-benzyl-3-methylimidazole bromide, 1-methylimidazole, One or more of 1-benzyl-3-methylimidazole chloride, 1-benzyl-3-methylimidazole hexafluorophosphate, 1-benzyl-3-methylimidazole tetrafluoroborate, 1-allyl-3-methylimidazole chloride, 1-allyl-3-methylimidazole bromide and 1-allyl-3-methylimidazole iodide.
As a further scheme of the invention: the volume ratio of the organic solvent I to the organic solvent II is as follows: 60:40-95: 5.
The preparation method of the oily graphene dispersion liquid comprises the following specific steps:
the method comprises the following steps: mixing an organic solvent I and an organic solvent II according to a mass ratio of 60:40-95:5 to obtain an organic solvent;
step two: premixing graphite and an organic solvent under the action of dispersing equipment; the mass ratio of the graphite to the organic solvent is 1:99-10: 90;
step three: and dispersing the obtained premixed solution by a high-pressure micro-jet homogenizer to obtain the oily graphene dispersion liquid with strong dispersion stability, high single-layer rate and high conductivity.
The high-pressure micro-jet homogenizer is circulated for 10 to 200 times under the pressure of 100-300 Mpa.
The dispersing equipment is one or more of an ultrasonic cell crusher, a high-power ultrasonic cleaning machine and a high-speed shearing emulsifying machine.
Compared with the related art, the oily graphene dispersion liquid and the preparation method thereof provided by the invention have the following beneficial effects:
the invention provides an oily graphene dispersion liquid with strong dispersion stability and a preparation method thereof, the preparation method provided by the invention is simple, high in stripping efficiency, good in product quality, low in energy consumption, easy for large-scale production, and wide in application prospect, and the oily graphene dispersion liquid can be used as a conductive additive to be applied to the fields of graphene electric heating films, lithium batteries, supercapacitors, conductive coatings, graphene heat dissipation materials and the like.
Drawings
FIG. 1 is a flow chart of the preparation of the present invention.
Fig. 2 is an SEM image of graphene obtained according to the present invention, and it can be seen that the single layer rate is greater than 50%.
Fig. 3 is an XRD reflection spectrum of the graphene obtained by the present invention, from which 2 θ is 26.675 °, the average thickness D of the crystal grain perpendicular to the crystal plane direction is 0.404nm, which is calculated by scherrer equation, and is the thickness of the single-layer graphene.
Detailed Description
The present invention will be further described with reference to the following embodiments.
The first embodiment is as follows:
weighing 186 g of dimethyl sulfoxide and 10 g of 1, 3-dimethyl imidazole methyl sulfate, uniformly mixing, adding 4 g of expandable graphite, carrying out ultrasonic treatment for 30 minutes by using an ultrasonic cell crusher, transferring the mixed solution into a high-pressure micro-jet homogenizer, adjusting the pressure to be 200Mpa, and circulating for 80 times to obtain the oily graphene dispersion liquid with good dispersion stability, high conductivity and high single-layer rate.
0.5 g of the obtained graphene dispersion liquid is taken, dried and measured by SEM and XRD, and the obtained results are respectively shown in figure 2 and figure 3. The single-layer rate of the product is more than 50% as shown in an SEM picture, 2 theta is 26.675 degrees as shown in an XRD reflection spectrum, and the average thickness D of crystal grains vertical to the crystal plane direction is 0.404nm and is the thickness of single-layer graphene as calculated by a Sherre formula. The conductivity of the obtained graphene (dried) measured by a four-probe method is 6550S/cm.
The graphene dispersion liquid is placed at a warm temperature for 6 months, the agglomeration rate is about 10%, and the dispersion stability is good.
Example two:
weighing 180 g of N-methylpyrrolidone and 14 g of brominated 1-benzyl-3-methylimidazole, uniformly mixing, adding 6 g of crystalline flake graphite, carrying out ultrasonic treatment for 30 minutes by using an ultrasonic cell crusher, transferring the mixed solution into a high-pressure micro-jet homogenizer, adjusting the pressure to 240MPa, and circulating for 100 times to obtain the oily graphene dispersion liquid with good dispersion stability, high conductivity and high single-layer rate. The conductivity of the obtained graphene (dried) measured by a four-probe method is 5850S/cm.
The graphene dispersion liquid is placed at a warm temperature for 6 months, the agglomeration rate is about 8%, and the dispersion stability is good.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by the present specification, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (8)
1. The oily graphene dispersion liquid is characterized by comprising graphite and an organic solvent, wherein crystalline flake graphite and the organic solvent form the oily graphene dispersion liquid, and the graphite in the oily graphene dispersion liquid is one or more of graphite powder, crystalline flake graphite, artificial graphite, expandable graphite and expanded graphite.
2. The oily graphene dispersion liquid according to claim 1, wherein the organic solvent is composed of a first organic solvent and a second organic solvent.
3. The oily graphene dispersion liquid according to claim 1, wherein the first organic solvent is chloroform, dimethyl sulfoxide, benzene, N-methylpyrrolidone, N-dimethylformamide, ethylene glycol, tetrahydrofuran.
4. The oily graphene dispersion liquid according to claim 1, wherein the organic solvent II is an ionic liquid, and the ionic liquid is 1, 3-dimethylimidazole iodide, 1, 3-dimethylimidazole methyl sulfate, 1, 3-dimethylimidazole dimethyl phosphate, 1-ethyl-3-methylimidazole bromide, 1-ethyl-3-methylimidazole iodide, 1-ethyl-3-methylimidazole methyl sulfate, 1-ethyl-3-methylimidazole dimethyl phosphate, 1-ethyl-3-methylimidazole tetrafluoroborate, 1-ethyl-3-methylimidazole hexafluorophosphate, 1-ethyl-3-methylimidazole trifluoromethanesulfonate, 1-ethyl-3-methylimidazole acetate, or a mixture thereof, One or more of 1-benzyl-3-methylimidazole bromide, 1-benzyl-3-methylimidazole chloride, 1-benzyl-3-methylimidazole hexafluorophosphate, 1-benzyl-3-methylimidazole tetrafluoroborate, 1-allyl-3-methylimidazole chloride, 1-allyl-3-methylimidazole bromide and 1-allyl-3-methylimidazole iodide.
5. The oily graphene dispersion liquid according to any one of claims 2 to 4, wherein the mass ratio of the organic solvent I to the organic solvent II is 60:40 to 95:5, and the mass ratio of graphite to the mixed solvent is 1:99 to 10: 90.
6. The method for preparing the oily graphene dispersion liquid according to claim 1, which comprises the following specific steps:
the method comprises the following steps: mixing the organic solvent I and the organic solvent II according to the volume ratio of 60:40-95:5 to obtain an organic solvent;
step two: premixing graphite and an organic solvent under the action of dispersing equipment;
step three: and dispersing the obtained premixed solution by a high-pressure micro-jet homogenizer to obtain the oily graphene dispersion liquid with high single-layer rate.
7. The method for preparing the oily graphene dispersion liquid according to claim 6, wherein the high-pressure micro-jet homogenizer is cycled for 10-200 times under a pressure of 100-300 MPa.
8. The method for preparing the oily graphene dispersion liquid according to claim 6, wherein the dispersing equipment is one or more of an ultrasonic cell crusher, a high-power ultrasonic cleaning machine and a high-speed shearing emulsifying machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210494405.XA CN114873584A (en) | 2022-05-08 | 2022-05-08 | Oily graphene dispersion liquid with strong dispersion stability and high monolayer rate and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210494405.XA CN114873584A (en) | 2022-05-08 | 2022-05-08 | Oily graphene dispersion liquid with strong dispersion stability and high monolayer rate and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114873584A true CN114873584A (en) | 2022-08-09 |
Family
ID=82673216
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210494405.XA Pending CN114873584A (en) | 2022-05-08 | 2022-05-08 | Oily graphene dispersion liquid with strong dispersion stability and high monolayer rate and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114873584A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103903876A (en) * | 2012-12-26 | 2014-07-02 | 海洋王照明科技股份有限公司 | Preparation method for flexible current collector |
| CN104118865A (en) * | 2014-05-09 | 2014-10-29 | 湖北大学 | Method for preparing graphene based on ion liquid crystal exfoliated graphite |
| KR20160069866A (en) * | 2014-12-09 | 2016-06-17 | 주식회사 엘지화학 | Method for preparation of highly concentrated graphene dispersion |
| CN105776187A (en) * | 2016-01-27 | 2016-07-20 | 复旦大学 | Method for green environmental-protection preparation of high-concentration ultra-clean graphene dispersion liquid |
| CN113184837A (en) * | 2021-05-14 | 2021-07-30 | 苏州烯之韵科技有限公司 | Oily graphene dispersion liquid and preparation method thereof |
-
2022
- 2022-05-08 CN CN202210494405.XA patent/CN114873584A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103903876A (en) * | 2012-12-26 | 2014-07-02 | 海洋王照明科技股份有限公司 | Preparation method for flexible current collector |
| CN104118865A (en) * | 2014-05-09 | 2014-10-29 | 湖北大学 | Method for preparing graphene based on ion liquid crystal exfoliated graphite |
| KR20160069866A (en) * | 2014-12-09 | 2016-06-17 | 주식회사 엘지화학 | Method for preparation of highly concentrated graphene dispersion |
| CN105776187A (en) * | 2016-01-27 | 2016-07-20 | 复旦大学 | Method for green environmental-protection preparation of high-concentration ultra-clean graphene dispersion liquid |
| CN113184837A (en) * | 2021-05-14 | 2021-07-30 | 苏州烯之韵科技有限公司 | Oily graphene dispersion liquid and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Fang et al. | Clipping electron transport and polarization relaxation of Ti3C2Tx based nanocomposites towards multifunction | |
| CN102618107B (en) | Conductive graphite cream and preparation method thereof | |
| Ni et al. | Fabrication of nanocomposite electrode with MnO2 nanoparticles distributed in polyaniline for electrochemical capacitors | |
| CN110036508A (en) | Anode of lithium ion battery and production method containing the silicon nanowires of growth in situ in grapheme foam hole | |
| CN108604485A (en) | Ultracapacitor with highly conductive grapheme foam electrode | |
| WO2019129228A1 (en) | Electrocondution slurry and preparation method therefor | |
| CN109311053A (en) | For alkali metal battery based on graphene-metal hybrid foam electrode | |
| CN103545487B (en) | Preparation method of high-viscosity ultra-fine dispersion anode slurry of lithium ion battery | |
| CN110366792A (en) | The metal fluoride and metal chloride active material of cathode that grapheme foam for lithium battery is protected | |
| CN112331380A (en) | Composite conductive slurry and preparation method and application thereof | |
| Chen et al. | Establishing a resilient conductive binding network for Si-based anodes via molecular engineering | |
| CN105523549A (en) | Stripping agent for preparation of graphene with mechanical striping method as well as application | |
| WO2016090958A1 (en) | Preparation method for mixed capacitor negative electrode slurry | |
| Zheng et al. | Trimethyl phosphate-enhanced polyvinyl carbonate polymer electrolyte with improved interfacial stability for solid-state lithium battery | |
| CN112837943A (en) | Ultrathin two-dimensional nanosheet layer NiCo-MOF material, and preparation method and application thereof | |
| Zhou et al. | Difunctional NH2-modified MOF supporting plentiful ion channels and stable LiF-rich SEI construction via organocatalysis for all-solid-state lithium metal batteries | |
| CN110112458A (en) | A kind of halloysite nanotubes modified polyurethane solid electrolyte, preparation method and its battery | |
| CN106893084A (en) | A kind of dispersant makees the method that template in-situ polymerization prepares conducting polymer | |
| Ma et al. | Solution-processed organic PDI/CB/TPU cathodes for flexible lithium ion batteries | |
| Yang et al. | Ti3C2Tx/aramid film electrode with high capacitance and good mechanical strength and the assembled wide temperature all-solid-state symmetrical supercapacitor | |
| Zhang et al. | Novel design and synthesis of 1D bamboo-like CNTs@ Sn4P3@ C coaxial nanotubes for long-term sodium ion storage | |
| CN101101973A (en) | Conductive polymer for dye-sensitized nano crystal solar battery and its making method | |
| CN113889347A (en) | Two-dimensional metal titanium carbide loaded MnOxQuantum dot electrode material and application thereof | |
| CN105551817A (en) | Method for preparing controllable synthesized carbon-coated molybdenum disulfide/polyaniline electrode material | |
| Tan et al. | Facile and surfactant-free synthesis of SnO 2-graphene hybrids as high performance anode for lithium-ion batteries |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |