CN103112850B - Method for preparing high-quality graphene through catalytic oxidation multiple-intercalation - Google Patents
Method for preparing high-quality graphene through catalytic oxidation multiple-intercalation Download PDFInfo
- Publication number
- CN103112850B CN103112850B CN201310080369.3A CN201310080369A CN103112850B CN 103112850 B CN103112850 B CN 103112850B CN 201310080369 A CN201310080369 A CN 201310080369A CN 103112850 B CN103112850 B CN 103112850B
- Authority
- CN
- China
- Prior art keywords
- graphene
- intercalation
- preparation
- product
- described step
- 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.)
- Expired - Fee Related
Links
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 74
- 229910021389 graphene Inorganic materials 0.000 title claims abstract description 60
- 238000000034 method Methods 0.000 title claims abstract description 36
- 238000009830 intercalation Methods 0.000 title claims abstract description 26
- 230000003647 oxidation Effects 0.000 title claims abstract description 8
- 238000007254 oxidation reaction Methods 0.000 title claims abstract description 8
- 230000003197 catalytic effect Effects 0.000 title abstract 2
- 230000002687 intercalation Effects 0.000 claims abstract description 24
- 238000001914 filtration Methods 0.000 claims abstract description 19
- 238000005406 washing Methods 0.000 claims abstract description 16
- 238000001035 drying Methods 0.000 claims abstract description 11
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 14
- 229910002804 graphite Inorganic materials 0.000 claims description 14
- 239000010439 graphite Substances 0.000 claims description 14
- 238000002203 pretreatment Methods 0.000 claims description 12
- 238000010907 mechanical stirring Methods 0.000 claims description 11
- 238000002360 preparation method Methods 0.000 claims description 10
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 7
- 229910052786 argon Inorganic materials 0.000 claims description 7
- 239000007789 gas Substances 0.000 claims description 7
- 239000001257 hydrogen Substances 0.000 claims description 7
- 229910052739 hydrogen Inorganic materials 0.000 claims description 7
- 238000002156 mixing Methods 0.000 claims description 6
- 238000006392 deoxygenation reaction Methods 0.000 claims description 5
- 150000003242 quaternary ammonium salts Chemical class 0.000 claims description 5
- 238000011946 reduction process Methods 0.000 claims description 5
- LZZYPRNAOMGNLH-UHFFFAOYSA-M Cetrimonium bromide Chemical compound [Br-].CCCCCCCCCCCCCCCC[N+](C)(C)C LZZYPRNAOMGNLH-UHFFFAOYSA-M 0.000 claims description 3
- 238000011085 pressure filtration Methods 0.000 claims description 3
- HWCKGOZZJDHMNC-UHFFFAOYSA-M tetraethylammonium bromide Chemical compound [Br-].CC[N+](CC)(CC)CC HWCKGOZZJDHMNC-UHFFFAOYSA-M 0.000 claims description 3
- 125000005211 alkyl trimethyl ammonium group Chemical group 0.000 claims description 2
- XJWSAJYUBXQQDR-UHFFFAOYSA-M dodecyltrimethylammonium bromide Chemical compound [Br-].CCCCCCCCCCCC[N+](C)(C)C XJWSAJYUBXQQDR-UHFFFAOYSA-M 0.000 claims description 2
- 230000010354 integration Effects 0.000 claims description 2
- 239000000138 intercalating agent Substances 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- JRMUNVKIHCOMHV-UHFFFAOYSA-M tetrabutylammonium bromide Chemical compound [Br-].CCCC[N+](CCCC)(CCCC)CCCC JRMUNVKIHCOMHV-UHFFFAOYSA-M 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000005516 engineering process Methods 0.000 abstract description 4
- 238000006243 chemical reaction Methods 0.000 abstract description 3
- 238000005265 energy consumption Methods 0.000 abstract description 2
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 239000002356 single layer Substances 0.000 abstract description 2
- 230000001681 protective effect Effects 0.000 abstract 1
- 239000000047 product Substances 0.000 description 17
- 239000010410 layer Substances 0.000 description 11
- 239000000243 solution Substances 0.000 description 6
- 239000007864 aqueous solution Substances 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 2
- 238000009281 ultraviolet germicidal irradiation Methods 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 1
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 238000005229 chemical vapour deposition Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002003 electron diffraction Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- TUJKJAMUKRIRHC-UHFFFAOYSA-N hydroxyl Chemical compound [OH] TUJKJAMUKRIRHC-UHFFFAOYSA-N 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000004377 microelectronic Methods 0.000 description 1
- 239000002086 nanomaterial Substances 0.000 description 1
- 230000033116 oxidation-reduction process Effects 0.000 description 1
- 239000012264 purified product Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000027756 respiratory electron transport chain Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- RKHXQBLJXBGEKF-UHFFFAOYSA-M tetrabutylphosphanium;bromide Chemical compound [Br-].CCCC[P+](CCCC)(CCCC)CCCC RKHXQBLJXBGEKF-UHFFFAOYSA-M 0.000 description 1
Classifications
-
- 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
- Y02P20/10—Process efficiency
Abstract
The invention relates to a method for preparing high-quality graphene through catalytic oxidation multiple-intercalation. The method comprises the following steps of: (1) pretreating; (2) carrying out intercalation peeling; (3) repeatedly carrying out the pretreating of the step (1) and the intercalation peeling of the step (2) on a product obtained in the step (2) to obtain a graphene product; and (4) washing the graphene product obtained in the step (3) and carrying out integrated filtration and drying on the graphene product obtained in the step (3); and (5) placing the dried product in a reduction protective atmosphere for deoxidation, thus obtaining the high-performance graphene. The method has the advantages of controlled reaction, high production efficiency, environmental friendliness, low energy consumption, high yield of single-layer graphene and few structure faults of graphene, and is simple and practicable in technology.
Description
Technical field
The present invention relates to a kind of catalyzed oxidation repeatedly intercalation prepare the method for high-quality graphene, belong to field of preparation of graphene.
Background technology
Since Graphene is found for 2004, it causes the very big concern of scientific circles immediately as a kind of new carbon.Graphene has unique two-dimensional nanostructure, and its electron transfer rate is high, conductivity is superior, thermal conductivity is high, is material that known physical strength is the highest and possesses the advantages such as stable chemical performance light transmission is good.Graphene has application prospect widely in fields such as lithium ion battery, ultracapacitor, functional composite material, sensor, biological medicine, transparent conductive film, microelectronic devices.
Up to the present, the preparation method of known Graphene has: 1) micromechanics stripping method.The method can only based on research, cannot accomplish scale production; 2) Graphene epitaxial growth method.The high cost of the method limits its practical application; 3) chemical Vapor deposition process.The method can meet the requirement of large-scale production, but cost is higher, complex process; 4) oxidation reduction process.The method is by becoming graphite oxide by graphite oxidation, and graphite oxide is peeled off and produced graphene oxide, then prepares Graphene by chemistry or thermal reduction.The method has a distinct increment on a preparative scale, but excessive by acid amount in production process, and environmental pollution is serious, reaction process and reaction product controllable degree is low and graphene product exists more defect and impurity, is difficult to obtain the highly purified product of high quality.
Summary of the invention
Technical problem to be solved by this invention is the technology of preparing present situation for current Graphene, and provide a kind of reaction controlled, production efficiency is high, and technological process is simple, environmental protection less energy-consumption and the high preparation method of Graphene quality.Products obtained therefrom single-layer graphene productive rate is high, Two-dimensional electron structural integrity, has excellent chemical physics performance.
For realizing object of the present invention, technical scheme of the present invention is as follows:
Catalyzed oxidation repeatedly intercalation prepares a method for high-quality graphene, and the method comprises the following steps:
(1) pre-treatment step: graphite is placed in by Fe
2+with H
2o
2in the mixing solutions formed, obtain Graphitic pretreatment product by mechanical stirring or supersound process or uviolizing, then filtration washing is carried out to product;
(2) intercalation strip step: the Graphitic pretreatment product obtained by step (1) be placed in intercalant solution and carry out supersound process simultaneously, washing obtains multi-layer graphene after filtration;
(3) by the pre-treatment of above-mentioned multi-layer graphene recirculation step (1) and (2) and intercalation strip step, graphene product is obtained;
(4) undertaken washing by the graphene product of step (3) gained and the filtration of integration and drying;
(5) above-mentioned dried product is placed in reduction protection atmosphere and carries out deoxidation and reduction, namely obtain High-performance graphene.
In the preferred embodiment of the present invention, the Fe in described step (1)
2+with H
2o
2mol ratio be 1:10-1:60, the pH value of mixing solutions is 1-5, and the treatment time is 1-5h.
In the preferred embodiment of the present invention, the mechanical stirring speed in described step (1) is 100-3000rpm, and ultrasonic power is 100-5000W, and ultraviolet wavelength is 190-400nm.
In the preferred embodiment of the present invention, the intercalator in described step (2) is quaternary ammonium salt.
In a more preferred embodiment of the present invention, described quaternary ammonium salt is one or more the mixture in cetyl trimethylammonium bromide, Trimethyllaurylammonium bromide, ten alkyl trimethyl ammonium bromides, Tetrabutyl amonium bromide or tetraethylammonium bromide.
In the preferred embodiment of the present invention, intercalation in described step (2) is peeled off and supersound process is carried out being aided with in churned mechanically ultrasonic oscillating system, and wherein, mechanical stirring speed is 100-3000rpm, ultrasonic power is 100-5000W, and the treatment time is 30-300min.
In the preferred embodiment of the present invention, the circulation pre-treatment of described step (3) and intercalation peel off number of times is 1-10 time.
In the preferred embodiment of the present invention, the filtration of described step (4) is realized by the drying integrated dewatering process of thermal air pressure filtration with dry.
In the preferred embodiment of the present invention, the reduction protection atmosphere of described step (5) is the mixing according to different ratios of hydrogen and argon gas, wherein, the volume ratio of hydrogen and argon gas is 3:97-5:95, the flow that reduction protection atmosphere enters stove is 100-300CC/min, and reduction heat-up rate is 5-40 DEG C/min; High-Temperature Deoxygenation reduction process temperature controls at 400-1000 DEG C, and control constant temperature time is 1-10h, is then cooled to room temperature with furnace temperature.
Compared with prior art, of the present inventionly to have the following advantages:
(1) the present invention adopts controlled catalysed oxidation processes, utilizes H
2o
2graphite layers edge is opened by the reactive hydroxyl radical produced, and reduces the destructiveness to conjugated backbone in graphite linings, the integrity of available protecting Graphene crystalline structure;
(2) adopt large size quaternary ammonium salt to insert graphite layers, effectively increase graphite layers distance, be conducive to the follow-up stripping of graphite;
(3) intercalation of graphite and liquid phase stripping process carry out in integrating device simultaneously, and the two synergy can effectively improve manufacture efficiency;
(4) filtration drying technique is realized on single equipment by thermal air pressure filtration drying dehydration process, and it is remarkable that technological process has energy-saving effect, the high and solid recovery rate advantages of higher of operating efficiency.
Accompanying drawing explanation
Fig. 1 is the atomic force microscope figure of the Graphene that embodiment 1 prepares.
Fig. 2 is the transmission electron microscope picture of the Graphene that embodiment 1 prepares.
Fig. 3 is the scanning electron microscope (SEM) photograph of the Graphene that embodiment 1 prepares.
Fig. 4 is the atomic force microscope figure of the Graphene that embodiment 2 prepares.
Fig. 5 is the atomic force microscope figure of the Graphene that embodiment 3 prepares.
Embodiment
Below in conjunction with example, specific embodiment of the invention is described further, but enforcement of the present invention and protection domain are not limited thereto.
Embodiment 1
(1) pre-treatment step: 5g graphite is placed in 25ml Fe
2+with H
2o
2mixed aqueous solution in, wherein Fe
2+with H
2o
2mol ratio is 1:40, and the pH value of solution is 3, and mechanical stirring speed is 500rpm and is aided with the UV-irradiation 3h that wavelength is 254nm, then carries out filtration washing to Graphitic pretreatment product;
(2) intercalation strip step: the 4.5g Graphitic pretreatment product obtained by step (2) is placed in 20ml cetyl trimethylammonium bromide aqueous solution intercalation and peels off, mechanical stirring speed is 300rpm, ultrasonic power is 1000W, treatment time 60min, and washing obtains multi-layer graphene after filtration;
(3) by the pre-treatment of above-mentioned multi-layer graphene recirculation and intercalation stripping process twice, (volume ratio of hydrogen and argon gas is 3:97 finally the product after washing, filtering and drying to be placed in high temperature reducing atmospheres; The flow that reduction protection atmosphere enters stove is 100CC/min, and reduction heat-up rate is 40 DEG C/min; High-Temperature Deoxygenation reduction process temperature controls at 900 DEG C, and control constant temperature time is 1h) thermal reduction obtains Graphene.
Fig. 1-3 is respectively the atomic force microscope figure of the Graphene that this embodiment obtains, transmission electron microscope picture and scanning electron microscope (SEM) photograph.Can find out, the thickness of Graphene is at below 1nm, and the size of Graphene, at about 5 μm, is chosen electron diffraction and shown that the crystallinity of Graphene is good.The specific conductivity of Graphene can reach 10 after tested
3s/cm.
Embodiment 2
(1) pre-treatment step: 5g graphite is placed in 25ml Fe
2+with H
2o
2mixed aqueous solution in, wherein, Fe
2+with H
2o
2mol ratio is 1:30, and the pH value of solution is 4, and mechanical stirring speed is 400rpm and is aided with the UV-irradiation 2h that wavelength is 254nm, then carries out filtration washing to Graphitic pretreatment product;
(2) intercalation strip step: the 4.3g Graphitic pretreatment product obtained by step (2) is placed in 20ml tetrabutyl phosphonium bromide aqueous ammonium intercalation and peels off, mechanical stirring speed is 400rpm, ultrasonic power is 1200W, treatment time 60min, and washing obtains multi-layer graphene after filtration;
(3) by the pre-treatment of above-mentioned multi-layer graphene recirculation and intercalation stripping process three times, (volume ratio of hydrogen and argon gas is 3:97 finally the product after washing, filtering and drying to be placed in high temperature reducing atmospheres; The flow that reduction protection atmosphere enters stove is 150CC/min, and reduction heat-up rate is 60 DEG C/min; High-Temperature Deoxygenation reduction process temperature controls at 1000 DEG C, and control constant temperature time is 1.5h) thermal reduction obtains Graphene.
Fig. 4 is the atomic force microscope figure of the Graphene that this embodiment obtains.Can find out that the lamellar spacing of Graphene is at 3-7nm.The specific conductivity of Graphene can reach 800S/cm after tested.
Embodiment 3
(1) pre-treatment step: 5g graphite is placed in 25ml Fe
2+with H
2o
2mixed aqueous solution in, wherein, Fe
2+with H
2o
2mol ratio is 1:50, and the pH value of solution is 2, and ultrasonic power is 800W, and the treatment time is 3h.Then filtration washing is carried out to Graphitic pretreatment product;
(2) intercalation strip step: the 4.6g Graphitic pretreatment product obtained by step (2) is placed in 20ml tetraethylammonium bromide aqueous solution intercalation and peels off, mechanical stirring speed is 200rpm, ultrasonic power is 800W, treatment time 120min, and washing obtains multi-layer graphene after filtration;
(3) by the pre-treatment of above-mentioned multi-layer graphene recirculation and intercalation stripping process twice, (volume ratio of hydrogen and argon gas is 4:96 finally the product after washing, filtering and drying to be placed in high temperature reducing atmospheres; The flow that reduction protection atmosphere enters stove is 120CC/min, and reduction heat-up rate is 60 DEG C/min; High-Temperature Deoxygenation reduction process temperature controls at 1000 DEG C, and control constant temperature time is 2h) thermal reduction obtains Graphene.
Fig. 5 is the atomic force microscope figure of the Graphene that this embodiment obtains.Can find out that the lamellar spacing of Graphene is at about 27nm.The specific conductivity of Graphene can reach 650S/cm after tested.Those skilled in the art can make replacement or modification according to content disclosed by the invention and the art technology grasped to content of the present invention; but these are replaced or modification should not be considered as departing from design of the present invention, these replacements or modification are all in the interest field of application claims protection.
Claims (8)
1. catalyzed oxidation repeatedly intercalation prepare a method for Graphene, it is characterized in that, the method comprises the following steps:
(1) pre-treatment step: graphite is placed in by Fe
2+with H
2o
2in the mixing solutions formed, obtain Graphitic pretreatment product by mechanical stirring or supersound process or uviolizing, then filtration washing is carried out to product;
(2) intercalation strip step: the Graphitic pretreatment product obtained by step (1) be placed in intercalant solution and carry out supersound process simultaneously, washing obtains multi-layer graphene after filtration; Intercalator in described step (2) is quaternary ammonium salt;
(3) by the pre-treatment of above-mentioned multi-layer graphene recirculation step (1) and (2) and intercalation strip step, graphene product is obtained;
(4) undertaken washing by the graphene product of step (3) gained and the filtration of integration and drying;
(5) above-mentioned dried product is placed in reduction protection atmosphere and carries out deoxidation and reduction, namely obtain Graphene.
2. preparation method according to claim 1, is characterized in that, the Fe in described step (1)
2+with H
2o
2mol ratio be 1:10-1:60, the pH value of mixing solutions is 1-5, and the treatment time is 1-5h.
3. preparation method according to claim 1, is characterized in that, the mechanical stirring speed in described step (1) is 100-3000rpm, and ultrasonic power is 100-5000W, and ultraviolet wavelength is 190-400nm.
4. preparation method according to claim 1, it is characterized in that, described quaternary ammonium salt is one or more the mixture in cetyl trimethylammonium bromide, Trimethyllaurylammonium bromide, ten alkyl trimethyl ammonium bromides, Tetrabutyl amonium bromide or tetraethylammonium bromide.
5. preparation method according to claim 1, it is characterized in that, intercalation in described step (2) is peeled off and supersound process is carried out being aided with in churned mechanically ultrasonic oscillating system, wherein, mechanical stirring speed is 100-3000rpm, ultrasonic power is 100-5000W, and the treatment time is 30-300min.
6. preparation method according to claim 1, is characterized in that, it is 1-10 time that the circulation pre-treatment of described step (3) and intercalation peel off number of times.
7. preparation method according to claim 1, is characterized in that, the filtration of described step (4) and drying are realized by the drying integrated dewatering process of thermal air pressure filtration.
8. preparation method according to claim 1, it is characterized in that, the reduction protection atmosphere of described step (5) is the mixing according to different ratios of hydrogen and argon gas, wherein, the volume ratio of hydrogen and argon gas is 3:97-5:95, the flow that reduction protection atmosphere enters stove is 100-300CC/min, and reduction heat-up rate is 5-40 DEG C/min; High-Temperature Deoxygenation reduction process temperature controls at 400-1000 DEG C, and control constant temperature time is 1-10h, is then cooled to room temperature with furnace temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310080369.3A CN103112850B (en) | 2013-03-13 | 2013-03-13 | Method for preparing high-quality graphene through catalytic oxidation multiple-intercalation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310080369.3A CN103112850B (en) | 2013-03-13 | 2013-03-13 | Method for preparing high-quality graphene through catalytic oxidation multiple-intercalation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103112850A CN103112850A (en) | 2013-05-22 |
| CN103112850B true CN103112850B (en) | 2015-02-18 |
Family
ID=48411259
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310080369.3A Expired - Fee Related CN103112850B (en) | 2013-03-13 | 2013-03-13 | Method for preparing high-quality graphene through catalytic oxidation multiple-intercalation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103112850B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106672957A (en) * | 2016-07-18 | 2017-05-17 | 中国科学院兰州化学物理研究所 | Method for preparing graphene oxide according to Fenton oxidation method |
| CN106744911B (en) * | 2017-01-23 | 2021-08-17 | 宣城亨旺新材料有限公司 | Production method of graphene oxide |
| CN107285302B (en) * | 2017-08-17 | 2020-05-26 | 中国科学院宁波材料技术与工程研究所 | Preparation method of graphene |
| CN107601489A (en) * | 2017-10-30 | 2018-01-19 | 嘉兴烯成新材料有限公司 | A kind of preparation method of graphene oxide |
| CN107673340B (en) * | 2017-11-22 | 2019-05-24 | 肇庆中特能科技投资有限公司 | The preparation method of graphene |
| CN110642241A (en) * | 2019-06-16 | 2020-01-03 | 嘉兴烯成新材料有限公司 | Preparation method of semiconductor carbon material |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2432733A4 (en) * | 2009-05-22 | 2016-01-20 | Univ Rice William M | Highly oxidized graphene oxide and methods for production thereof |
| AU2011258067B2 (en) * | 2010-05-28 | 2013-10-24 | Graphea, Inc. | Carbocatalysts for chemical transformations |
| CN102452649B (en) * | 2010-10-18 | 2014-04-02 | 中国科学院宁波材料技术与工程研究所 | Preparation method for graphene |
| CN102336404B (en) * | 2011-07-19 | 2013-04-03 | 上海交通大学 | Preparation method of graphene oxide quantum dot based on photocatalytic oxidation |
| CN102431998A (en) * | 2011-09-20 | 2012-05-02 | 深圳市长宜景鑫投资有限公司 | Method for preparing high-quality graphene in large scale by intercalation stripping of graphite by chemical method |
-
2013
- 2013-03-13 CN CN201310080369.3A patent/CN103112850B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN103112850A (en) | 2013-05-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103112850B (en) | Method for preparing high-quality graphene through catalytic oxidation multiple-intercalation | |
| CN103570012B (en) | A kind of preparation method of Graphene | |
| CN102153077A (en) | Method for preparing single-layer graphene with high carbon-oxygen ratio | |
| CN104386678B (en) | A kind of preparation method of Graphene | |
| CN112758950B (en) | Boron alkene nanosheets and preparation method thereof | |
| CN103145117B (en) | Method for preparing graphene | |
| CN105800603A (en) | Method for quickly preparing high-quality graphene | |
| CN103058177B (en) | Preparation method for realizing N-doped grapheme by high-energy microwave vacuum irradiation | |
| CN104071777B (en) | A kind of preparation method of Graphene | |
| CN103121670A (en) | Method for low-temperature growth of graphene by remote plasma reinforced atomic layer deposition | |
| CN104030275A (en) | Preparation method of reduction graphene oxide heat-conducting film | |
| CN103288069A (en) | Method for preparing fluorinated graphene through microwave hydrothermal method | |
| CN104876217A (en) | Graphene preparation method | |
| CN103613093B (en) | A kind of hydrogen reducing prepares the method for Graphene | |
| CN102698666B (en) | Based on the preparation method of the graphene/nanometer particle composite material of infrared irridiation | |
| CN103253661B (en) | Method for preparing graphene powder at large scale | |
| CN102757035B (en) | Preparation method of graphene | |
| CN104973591A (en) | High-quality graphene and preparation method thereof | |
| CN104386676A (en) | Preparation method of graphene | |
| CN105293482A (en) | Solvothermal stripping preparation method of graphene | |
| CN106219525A (en) | A kind of preparation method of expanded graphite paper | |
| CN104773725A (en) | Method for preparing graphene by using low-temperature plasmas | |
| CN102424382B (en) | Method for preparing high-specific-surface-area graphene under conditions of normal pressure and low temperature | |
| CN108622887B (en) | Method for preparing graphene through microwave puffing | |
| CN111017916A (en) | Preparation method of graphene with controllable layer number |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| ASS | Succession or assignment of patent right |
Owner name: SHANGHAI SECOND POLYTECHNIC UNIVERSITY ASSET MANAG Free format text: FORMER OWNER: SHANGHAI NO.2 POLYTECHNIC UNIV. Effective date: 20141209 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 201209 PUDONG NEW AREA, SHANGHAI TO: 200041 JING'AN, SHANGHAI |
|
| TA01 | Transfer of patent application right |
Effective date of registration: 20141209 Address after: 200041 No. 80, Jingan District, Shanghai, North Shaanxi Road Applicant after: SHANGHAI SECOND POLYTECHNIC UNIVERSITY, ASSETS MANAGEMENT CO., LTD. Address before: 201209 Shanghai City, Pudong New Area Jinhai Road No. 2360 Applicant before: Shanghai No.2 Polytechnic Univ. |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170815 Address after: 201209, A252, building 1, building 2588, Golden Sea Road, Shanghai, Pudong New Area Patentee after: Shanghai Yueda New Material Technology Co., Ltd. Address before: 200041 No. 80, Jingan District, Shanghai, North Shaanxi Road Patentee before: SHANGHAI SECOND POLYTECHNIC UNIVERSITY, ASSETS MANAGEMENT CO., LTD. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190125 Address after: 201822 J3330 room 912, Yecheng Road, Jiading Industrial Zone, Jiading District, Shanghai. Patentee after: Shanghai Mstar Technology Ltd Address before: 201209 room 1, building 1, Jinhai Road, Pudong New Area, Shanghai, A252 Patentee before: Shanghai Yueda New Material Technology Co., Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190521 Address after: No. 80 Shaanxi North Road, Jing'an District, Shanghai 200041 Patentee after: SHANGHAI SECOND POLYTECHNIC UNIVERSITY, ASSETS MANAGEMENT CO., LTD. Address before: 201822 J3330 room 912, Yecheng Road, Jiading Industrial Zone, Jiading District, Shanghai. Patentee before: Shanghai Mstar Technology Ltd |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150218 Termination date: 20210313 |