CN103387228A - Preparation method for graphene scrolls - Google Patents
Preparation method for graphene scrolls Download PDFInfo
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- CN103387228A CN103387228A CN2013103096726A CN201310309672A CN103387228A CN 103387228 A CN103387228 A CN 103387228A CN 2013103096726 A CN2013103096726 A CN 2013103096726A CN 201310309672 A CN201310309672 A CN 201310309672A CN 103387228 A CN103387228 A CN 103387228A
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 124
- 229910021389 graphene Inorganic materials 0.000 title claims abstract description 96
- 238000002360 preparation method Methods 0.000 title claims abstract description 25
- 238000002156 mixing Methods 0.000 claims abstract description 18
- 239000007864 aqueous solution Substances 0.000 claims description 28
- 229910002804 graphite Inorganic materials 0.000 claims description 27
- 239000010439 graphite Substances 0.000 claims description 27
- 239000000243 solution Substances 0.000 claims description 23
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 18
- 238000001027 hydrothermal synthesis Methods 0.000 claims description 18
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims description 15
- 238000003756 stirring Methods 0.000 claims description 11
- WMFOQBRAJBCJND-UHFFFAOYSA-M Lithium hydroxide Chemical compound [Li+].[OH-] WMFOQBRAJBCJND-UHFFFAOYSA-M 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 17
- 238000000034 method Methods 0.000 abstract description 16
- 238000006243 chemical reaction Methods 0.000 abstract description 15
- 239000003513 alkali Substances 0.000 abstract description 6
- 239000012467 final product Substances 0.000 description 15
- 239000008367 deionised water Substances 0.000 description 12
- 229910021641 deionized water Inorganic materials 0.000 description 12
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 10
- 239000011541 reaction mixture Substances 0.000 description 10
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 description 8
- PAYRUJLWNCNPSJ-UHFFFAOYSA-N Aniline Chemical compound NC1=CC=CC=C1 PAYRUJLWNCNPSJ-UHFFFAOYSA-N 0.000 description 6
- 239000002904 solvent Substances 0.000 description 6
- 238000001132 ultrasonic dispersion Methods 0.000 description 6
- 229910052799 carbon Inorganic materials 0.000 description 5
- 238000005406 washing Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 239000012535 impurity Substances 0.000 description 4
- 229910017053 inorganic salt Inorganic materials 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 235000010333 potassium nitrate Nutrition 0.000 description 4
- 239000004323 potassium nitrate Substances 0.000 description 4
- 239000012286 potassium permanganate Substances 0.000 description 4
- 239000000843 powder Substances 0.000 description 4
- 150000001721 carbon Chemical group 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- 238000013019 agitation Methods 0.000 description 2
- 230000003197 catalytic effect Effects 0.000 description 2
- 238000005119 centrifugation Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 239000003999 initiator Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000003960 organic solvent Substances 0.000 description 2
- 229920000767 polyaniline Polymers 0.000 description 2
- 230000002269 spontaneous effect Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- NPYPAHLBTDXSSS-UHFFFAOYSA-N Potassium ion Chemical compound [K+] NPYPAHLBTDXSSS-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910021393 carbon nanotube Inorganic materials 0.000 description 1
- 239000002041 carbon nanotube Substances 0.000 description 1
- 239000003575 carbonaceous material Substances 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- -1 graphite alkene Chemical class 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 229910021392 nanocarbon Inorganic materials 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 229910001414 potassium ion Inorganic materials 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000011232 storage material Substances 0.000 description 1
- 239000006228 supernatant Substances 0.000 description 1
- 238000006557 surface reaction Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 238000002604 ultrasonography Methods 0.000 description 1
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Abstract
The invention provides a preparation method for graphene scrolls. The method comprises steps of mixing a graphene oxide water solution with a strong alkali to perform a reaction to obtain the graphene scrolls, wherein the molar concentration of the strong alkali in the graphene oxide water solution is n, and the n is not less than 12 mol/L. The preparation method has mild reaction conditions, simple operation and low cost, and is prone to popularization and application. Experiments show that the graphene scrolls prepared by the preparation method have complete structures and good quality.
Description
Technical field
The present invention relates to the Graphene technical field, especially relate to a kind of preparation method of Graphene volume.
Background technology
Graphene (Graphene) is a kind of novel material of the individual layer sheet structure that consists of carbon atom.It is a kind ofly to form hexangle type by carbon atom with the sp2 hybridized orbital and be the flat film of honeycomb lattice, only has the two-dimensional material of a carbon atom thickness.Graphene is very easily reunited, and people imagine graphene platelet curling, forms a kind of web-like nano-carbon material that is similar to carbon nanotube-Graphene volume (graphene scrolls) between a peacekeeping two dimension.
With respect to carbon nanotube, Graphene is rolled up as a kind of novel grapheme material, the non-sealing in edge, and the footpath spacing easily regulates and controls, and higher specific surface area is arranged; With respect to Graphene, the curling limit threshold effect of bringing of radially nano-scale of Graphene volume can significantly improve the catalytic performance of itself and the catalytic performance that forms the system that supports as carrier.Research shows, the Graphene volume has electricity and chemical property preferably because of its special topological framework, in fields such as ultracapacitor, hydrogen storage material, catalysis, sensor and nano electron devices, is with a wide range of applications.
Prior art discloses the multiple method for preparing the Graphene volume, as Lisa M V(Julia J M, Richard B K.A Chemical Route to Carbon Nanoscrolls[J] .Science, 1361) etc. 2003.299 (5611): reported a kind of method for preparing the Graphene volume.Under inert conditions, potassium metal is inserted flaky graphite between layers, form lamellar compound KC
8, KC
8Further, with ethanol synthesis, thereby produce a large amount of heat and micro-molecular gas, cause peeling off of graphite flake, potassium ion dissolves and follows the effusion of hydrogen can further help graphite laminated, and by the ultrasound polyethylene-reducing solution, the graphite flake oneself of peeling off is curling, forms the Graphene volume.But this method is due to KC
8In air easily with decompositions that react of oxygenant and water, need carry out under inert conditions, so be unfavorable for the preparation that extensive Graphene is rolled up.
Zhou Xufeng, Liu Zhao equality disclose a kind of method (CN102976316A) for preparing the Graphene volume.The method by first with the organic solution of aniline with contain the graphene oxide aqueous solution of initiator, initiator causes aniline polymerization, graphene oxide reacts at interface and the aniline of organic solvent and water, form the matrix material of graphene oxide/polyaniline, again with graphene oxide/polyaniline dry heat, utilize that composite material surface tension force in the dry heat process changes, graphene oxide is reduced to Graphene and curl into the Graphene volume.But the preparation of this Graphene volume need to be completed by the surface reaction at organic solvent and water, so productive rate is low and the operation is more complicated, thereby has limited its large-scale application.
Summary of the invention
In view of this, the technical problem to be solved in the present invention is to provide a kind of preparation method of Graphene volume, preparation method's reaction temperature of Graphene volume provided by the invention and, simple to operate, cost is lower.
The invention provides a kind of preparation method of Graphene volume, comprising:
With the graphite oxide aqueous solution with react after highly basic mixes, obtain the Graphene volume;
The volumetric molar concentration of described highly basic in the graphite oxide aqueous solution is n, and described n meets the following conditions: n 〉=12mol/L.
Preferably, the mass concentration of described graphite oxide aqueous solution is m, and described m meets the following conditions: 0g/L＜m≤0.3g/L.
Preferably, described highly basic is lithium hydroxide, sodium hydroxide or potassium hydroxide.
Preferably, described steps A) be specially:
A1) the graphite oxide aqueous solution mixed with highly basic and stirs, obtaining mixing solutions;
A2) above-mentioned mixing solutions is carried out hydro-thermal reaction in encloses container, obtain the Graphene volume.
Preferably, the temperature of described hydro-thermal reaction is 80～200 ℃.
Preferably, the time of described hydro-thermal reaction is 0.5～48 hour.
Preferably, described encloses container is closed reactor.
Compared with prior art, the present invention with the graphite oxide aqueous solution with react after highly basic mixes, obtain the Graphene volume, the volumetric molar concentration 〉=12mol/L of described highly basic in the graphite oxide aqueous solution.The present invention is with highly basic or strong alkali aqueous solution and graphene oxide aqueous solution and stirring, be mixed with the higher graphene aqueous solution of alkali concn, then, by hydro-thermal reaction, make graphene oxide reduce under high density highly basic existence condition, spontaneous crimp simultaneously, form the Graphene volume.Preparation method's reaction conditions of Graphene volume provided by the invention is gentle, simple to operate, cost is lower, is easy to be extended and applied.Experimental result shows, the Graphene volume structure of the present invention's preparation is complete, and quality is better.
Description of drawings
Fig. 1 is the scanning electron microscope diagram of the Graphene volume for preparing in the embodiment of the present invention 1;
Fig. 2 is the scanning electron microscope diagram of the Graphene volume for preparing in the embodiment of the present invention 2.
Embodiment
The invention provides a kind of preparation method of Graphene volume, comprising:
With the graphite oxide aqueous solution with react after highly basic mixes, obtain the Graphene volume;
The volumetric molar concentration of described highly basic in the graphite oxide aqueous solution is n, and described n meets the following conditions: n 〉=12mol/L.
The present invention is with highly basic or strong alkali aqueous solution and graphene oxide aqueous solution and stirring, be mixed with the higher graphene aqueous solution of alkali concn, then, by hydro-thermal reaction, make graphene oxide reduce under high density highly basic existence condition, spontaneous crimp simultaneously, form the Graphene volume.
All raw materials of the present invention, be not particularly limited its source, and that buys on market gets final product.
At first the present invention mixes the graphite oxide aqueous solution and stirs with highly basic, obtain mixing solutions; The volumetric molar concentration of described highly basic in the graphite oxide aqueous solution, namely in mixing solutions, the volumetric molar concentration of highly basic is n, described n preferably meets the following conditions: n 〉=12mol/L, more preferably n 〉=15mol/L; The mass concentration of described graphite oxide aqueous solution is m, and described m preferably meets the following conditions: 0g/L＜m≤0.3g/L, more preferably 0.1g/L＜m≤0.2g/L; Described highly basic is preferably lithium hydroxide, sodium hydroxide or potassium hydroxide, more preferably sodium hydroxide or potassium hydroxide.
The present invention is not particularly limited the method for mixing, and mixes and gets final product; The present invention is not particularly limited the condition of mixing, and with mixing condition well known to those skilled in the art, gets final product; The present invention is not particularly limited the method that stirs, and with stirring means well known to those skilled in the art, gets final product; The present invention is not particularly limited agitation condition, with agitation condition well known to those skilled in the art, gets final product; The present invention is not particularly limited whipping device, with whipping device well known to those skilled in the art, gets final product.
The present invention is also unrestricted to the preparation method of described graphene oxide, preferably adopts improved Hummers method preparation:
Mix 1.5g graphite, 1.5g saltpetre and the 90mL vitriol oil rear and the reaction of 9g potassium permanganate, reaction adds 100mL deionized water and 2mL hydrogen peroxide after finishing, and obtains the 2g graphene oxide.The present invention is not particularly limited for described hybrid mode, and hybrid mode well known to those skilled in the art gets final product; Described reaction is preferably under the condition that stirs reacts; Described temperature of reaction is preferably room temperature; The described reaction times is preferably 1～10h; Described add after deionized water and hydrogen peroxide preferably also comprise centrifugal rear cleaning supernatant liquor to pH for neutral.The present invention is for described centrifugation and unrestricted, and centrifugation well known to those skilled in the art gets final product.
The present invention is placed in encloses container with above-mentioned mixing solutions and carries out hydro-thermal reaction, obtains the Graphene volume.At first the present invention is placed in encloses container with above-mentioned mixing solutions and carries out hydro-thermal reaction.The temperature of described hydro-thermal reaction is preferably 80～200 ℃, more preferably 100～180 ℃; The time of described hydro-thermal reaction is preferably 0.5～48 hour, more preferably 2～45 hours; The present invention is not particularly limited described encloses container, is preferably closed reactor; The present invention is not particularly limited other conditions of hydro-thermal reaction, with hydrothermal reaction condition well known to those skilled in the art, gets final product.
Secondly, the present invention preferably is cooled to room temperature with above-mentioned reaction mixture, then after repeatedly washing and filtering, obtains the Graphene volume after hydro-thermal reaction obtains reaction mixture carrying out.The present invention repeatedly washs and filters above-mentioned cooled reaction mixture, to remove the soluble inorganic salt impurity in reaction mixture.The present invention is not particularly limited cooling mode, is preferably the nature cooling; The present invention is not particularly limited the medium of washing, is preferably deionized water; The present invention is not particularly limited the method for filtering, and with filter method well known to those skilled in the art, gets final product; The present invention is not particularly limited filter plant, with filter plant well known to those skilled in the art, gets final product.
The present invention after obtaining above-mentioned Graphene volume, preferably can prepare Graphene volume powder by oven dry, cryodesiccated method, to strengthen the range of application of Graphene volume; The present invention is not particularly limited drying condition, and the condition of with oven dry Graphene well known to those skilled in the art, rolling up gets final product; The present invention is not particularly limited drying plant, with drying plant well known to those skilled in the art, gets final product.
The present invention after obtaining above-mentioned Graphene volume, preferably can also be dispersed in it in other solvents again, obtains Graphene volume solution after dispersion, to strengthen the range of application of Graphene volume; The present invention is not particularly limited solvent, with well known to those skilled in the art can dispersed graphite alkene the solvent of volume get final product; The present invention is not particularly limited the mode of disperseing, and is preferably ultra-sonic dispersion; The present invention is not particularly limited ultra-sonic dispersion equipment, with ultra-sonic dispersion equipment well known to those skilled in the art, gets final product.
Preparation method's reaction temperature provided by the invention and, simple to operate, cost is lower, be easy to be extended and applied.Experimental result shows that the Graphene volume structure that the present invention prepares is complete, and quality is better.
, in order to further illustrate the present invention, below in conjunction with embodiment, the preparation method of Graphene volume provided by the invention is described in detail.
Embodiment 1
At first mix 1.5g graphite, 1.5g saltpetre and the 90mL vitriol oil rear and the reaction of 9g potassium permanganate, reaction adds 100mL deionized water and 2mL hydrogen peroxide after finishing, and obtains the 2g graphene oxide.Again above-mentioned graphene oxide and deionized water are mixed with the graphite oxide aqueous solution of 0.3g/L.
Then the graphene oxide aqueous solution that is 0.3g/L with 40g sodium hydroxide and the above-mentioned mass concentration for preparing of 75ml, and uniform stirring obtains mixing solutions, again above-mentioned mixing solutions is placed in the closed reactor of 100ml, carry out hydro-thermal reaction under 120 ℃, reacted 8 hours, and obtained reaction mixture.
Finally above-mentioned reaction mixture is naturally cooled to room temperature, then with deionized water, repeatedly wash, filter, remove other soluble inorganic salt impurity in solution, obtain 0.02g Graphene volume.
As shown in Figure 1, Fig. 1 is the scanning electron microscope diagram of the Graphene volume for preparing in the embodiment of the present invention 1 to result, and as shown in Figure 1, the present invention has obtained the Graphene volume, and its structural integrity.
The Graphene volume that obtains after above-mentioned washing can prepare Graphene volume powder by oven dry, cryodesiccated method, or the volume of the Graphene after washes clean is dispersed in other solvent again again, obtains the Graphene volume solution of good dispersity by ultra-sonic dispersion.
Embodiment 2
At first mix 1.5g graphite, 1.5g saltpetre and the 90mL vitriol oil rear and the reaction of 9g potassium permanganate, reaction adds 100mL deionized water and 2mL hydrogen peroxide after finishing, and obtains the 2g graphene oxide.Again above-mentioned graphene oxide and deionized water are mixed with the graphite oxide aqueous solution of 0.3g/L.
Then the graphene oxide aqueous solution that is 0.2g/L with 60g potassium hydroxide and the above-mentioned mass concentration for preparing of 75ml, and uniform stirring obtains mixing solutions, again above-mentioned mixing solutions is placed in the closed reactor of 100ml, carry out hydro-thermal reaction under 80 ℃, reacted 48 hours, and obtained reaction mixture.
Finally above-mentioned reaction mixture is naturally cooled to room temperature, then with deionized water, repeatedly wash, filter, remove other soluble inorganic salt impurity in solution, obtain 0.01g Graphene volume.
As shown in Figure 2, Fig. 2 is the scanning electron microscope diagram of the Graphene volume for preparing in the embodiment of the present invention 2 to result, and as shown in Figure 2, the present invention has obtained the Graphene volume, and its structural integrity.
The Graphene volume that obtains after above-mentioned washing can prepare Graphene volume powder by oven dry, cryodesiccated method, or the volume of the Graphene after washes clean is dispersed in other solvent again again, obtains the Graphene volume solution of good dispersity by ultra-sonic dispersion.
Embodiment 3
At first mix 1.5g graphite, 1.5g saltpetre and the 90mL vitriol oil rear and the reaction of 9g potassium permanganate, reaction adds 100mL deionized water and 2mL hydrogen peroxide after finishing, and obtains the 2g graphene oxide.Again above-mentioned graphene oxide and deionized water are mixed with the graphite oxide aqueous solution of 0.3g/L.
Then the graphene oxide aqueous solution that is 0.3g/L with 40g sodium hydroxide and the above-mentioned mass concentration for preparing of 25ml, and uniform stirring obtains mixing solutions, again above-mentioned mixing solutions is placed in the closed reactor of 100ml, carry out hydro-thermal reaction under 180 ℃, reacted 12 hours, and obtained reaction mixture.
Finally above-mentioned reaction mixture is naturally cooled to room temperature, then with deionized water, repeatedly wash, filter, remove other soluble inorganic salt impurity in solution, obtain 0.007g Graphene volume.
The Graphene volume that obtains after above-mentioned washing can prepare Graphene volume powder by oven dry, cryodesiccated method, or the volume of the Graphene after washes clean is dispersed in other solvent again again, obtains the Graphene volume solution of good dispersity by ultra-sonic dispersion.
The above is only the preferred embodiment of the present invention; should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (7)
1. the preparation method of Graphene volume comprises the following steps:
A) with the graphite oxide aqueous solution with react after highly basic mixes, obtain the Graphene volume;
The volumetric molar concentration of described highly basic in the graphite oxide aqueous solution is n, and described n meets the following conditions: n 〉=12mol/L.
2. preparation method according to claim 1, is characterized in that, the mass concentration of described graphite oxide aqueous solution is m, and described m meets the following conditions: 0g/L＜m≤0.3g/L.
3. preparation method according to claim 1, is characterized in that, described highly basic is lithium hydroxide, sodium hydroxide or potassium hydroxide.
4. preparation method according to claim 1, is characterized in that, described steps A) be specially:
A1) the graphite oxide aqueous solution mixed with highly basic and stirs, obtaining mixing solutions;
A2) above-mentioned mixing solutions is carried out hydro-thermal reaction in encloses container, obtain the Graphene volume.
5. preparation method according to claim 4, is characterized in that, the temperature of described hydro-thermal reaction is 80～200 ℃.
6. preparation method according to claim 4, is characterized in that, the time of described hydro-thermal reaction is 0.5～48 hour.
7. preparation method according to claim 4, is characterized in that, described encloses container is closed reactor.
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| CN201310309672.6A CN103387228B (en) | 2013-07-19 | 2013-07-19 | Preparation method for graphene scrolls |
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| CN201310309672.6A CN103387228B (en) | 2013-07-19 | 2013-07-19 | Preparation method for graphene scrolls |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105948031A (en) * | 2016-07-04 | 2016-09-21 | 西北有色金属研究院 | Preparation method of graphene nano-coil |
| CN106698403A (en) * | 2017-01-06 | 2017-05-24 | 南京工业大学 | Method of preparing graphene roll in large area |
| CN106976869A (en) * | 2017-04-26 | 2017-07-25 | 同济大学 | A kind of three-dimensional sleeve-shaped graphene and preparation method thereof |
| CN107055511A (en) * | 2017-04-13 | 2017-08-18 | 常州纳欧新材料科技有限公司 | A kind of three-dimensional cross-linked CNT and preparation method thereof |
-
2013
- 2013-07-19 CN CN201310309672.6A patent/CN103387228B/en active Active
Non-Patent Citations (2)
| Title |
|---|
| JONATHAN P. ROURKE ET AL.: "The Real Graphene Oxide Revealed: Stripping the Oxidative Debris from the Graphene-like Sheets", 《ANGEW. CHEM.》 * |
| XIAOBIN FAN ET AL.: "Deoxygenation of Exfoliated Graphite Oxide under Alkaline Conditions: A Green Route to Graphene Preparation", 《ADVANCED MATERIALS》 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105948031A (en) * | 2016-07-04 | 2016-09-21 | 西北有色金属研究院 | Preparation method of graphene nano-coil |
| CN105948031B (en) * | 2016-07-04 | 2017-09-19 | 西北有色金属研究院 | A kind of preparation method of graphene nano volume |
| CN106698403A (en) * | 2017-01-06 | 2017-05-24 | 南京工业大学 | Method of preparing graphene roll in large area |
| CN106698403B (en) * | 2017-01-06 | 2019-01-18 | 南京工业大学 | A kind of method of large area preparation graphene roll |
| CN107055511A (en) * | 2017-04-13 | 2017-08-18 | 常州纳欧新材料科技有限公司 | A kind of three-dimensional cross-linked CNT and preparation method thereof |
| CN107055511B (en) * | 2017-04-13 | 2019-04-16 | 常州纳欧新材料科技有限公司 | A kind of three-dimensional cross-linked carbon nanotube and preparation method thereof |
| CN106976869A (en) * | 2017-04-26 | 2017-07-25 | 同济大学 | A kind of three-dimensional sleeve-shaped graphene and preparation method thereof |
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Effective date of registration: 20240423 Address after: 315201 No. 1818, Zhong Guan Xi Road, Zhuang City Street, Zhenhai District, Ningbo, Zhejiang. Patentee after: NINGBO GRAPHENE INNOVATION CENTER Co.,Ltd. Country or region after: China Address before: 315201, No. 519, Zhuang Avenue, Zhenhai District, Zhejiang, Ningbo Patentee before: NINGBO INSTITUTE OF MATERIALS TECHNOLOGY & ENGINEERING, CHINESE ACADEMY OF SCIENCES Country or region before: China |