CN107902646A - A kind of preparation method of high purity graphite olefinic carbon nanometer composite powder - Google Patents
A kind of preparation method of high purity graphite olefinic carbon nanometer composite powder Download PDFInfo
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- CN107902646A CN107902646A CN201711185790.5A CN201711185790A CN107902646A CN 107902646 A CN107902646 A CN 107902646A CN 201711185790 A CN201711185790 A CN 201711185790A CN 107902646 A CN107902646 A CN 107902646A
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 151
- 229910002804 graphite Inorganic materials 0.000 title claims abstract description 52
- 239000010439 graphite Substances 0.000 title claims abstract description 52
- 239000002131 composite material Substances 0.000 title claims abstract description 33
- 239000000843 powder Substances 0.000 title claims abstract description 26
- 229910052799 carbon Inorganic materials 0.000 title claims abstract description 25
- 238000002360 preparation method Methods 0.000 title claims abstract description 19
- 239000002041 carbon nanotube Substances 0.000 claims abstract description 40
- 229910021393 carbon nanotube Inorganic materials 0.000 claims abstract description 40
- KEQGZUUPPQEDPF-UHFFFAOYSA-N 1,3-dichloro-5,5-dimethylimidazolidine-2,4-dione Chemical compound CC1(C)N(Cl)C(=O)N(Cl)C1=O KEQGZUUPPQEDPF-UHFFFAOYSA-N 0.000 claims abstract description 27
- XTHPWXDJESJLNJ-UHFFFAOYSA-N chlorosulfonic acid Substances OS(Cl)(=O)=O XTHPWXDJESJLNJ-UHFFFAOYSA-N 0.000 claims abstract description 27
- 238000006243 chemical reaction Methods 0.000 claims abstract description 25
- 229910021389 graphene Inorganic materials 0.000 claims abstract description 25
- 239000007789 gas Substances 0.000 claims abstract description 22
- 239000007788 liquid Substances 0.000 claims abstract description 15
- 239000002253 acid Substances 0.000 claims abstract description 14
- 238000002156 mixing Methods 0.000 claims abstract description 7
- 238000003756 stirring Methods 0.000 claims abstract description 6
- 239000000203 mixture Substances 0.000 claims abstract description 5
- 239000007790 solid phase Substances 0.000 claims abstract description 5
- 238000010992 reflux Methods 0.000 claims abstract description 4
- 238000010276 construction Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 description 19
- 239000000463 material Substances 0.000 description 13
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 11
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 10
- 229910052744 lithium Inorganic materials 0.000 description 10
- 229910052751 metal Inorganic materials 0.000 description 8
- 239000002184 metal Substances 0.000 description 8
- 239000008187 granular material Substances 0.000 description 6
- 239000012535 impurity Substances 0.000 description 6
- -1 graphite alkene Chemical class 0.000 description 5
- 239000002956 ash Substances 0.000 description 4
- 239000003054 catalyst Substances 0.000 description 4
- 239000002482 conductive additive Substances 0.000 description 4
- 239000000428 dust Substances 0.000 description 4
- 239000002699 waste material Substances 0.000 description 4
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 3
- 150000001336 alkenes Chemical class 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 238000004880 explosion Methods 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- 229910001416 lithium ion Inorganic materials 0.000 description 3
- 239000003863 metallic catalyst Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000005229 chemical vapour deposition Methods 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 239000002270 dispersing agent Substances 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 238000000227 grinding Methods 0.000 description 2
- 229910044991 metal oxide Inorganic materials 0.000 description 2
- 150000004706 metal oxides Chemical class 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 235000002918 Fraxinus excelsior Nutrition 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000036760 body temperature Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000006258 conductive agent Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012065 filter cake Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000002071 nanotube Substances 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000033116 oxidation-reduction process Effects 0.000 description 1
- 230000020477 pH reduction Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000001603 reducing effect Effects 0.000 description 1
- 235000011149 sulphuric acid Nutrition 0.000 description 1
- 239000003930 superacid Substances 0.000 description 1
- 239000002341 toxic gas Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/62—Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
- H01M4/624—Electric conductive fillers
- H01M4/625—Carbon or graphite
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Carbon And Carbon Compounds (AREA)
Abstract
A kind of preparation method of high purity graphite olefinic carbon nanometer composite powder, includes the following steps：Step 1：Graphite powder and carbon nanotubes are subjected to solid phase mixing, then by graphite：Chlorosulfonic acid 1:25—1:Chlorosulfonic acid liquid is made in 300 mass ratio；Step 2：A certain amount of chlorosulfonic acid liquid is injected into pressure reaction still, reaction kettle stirring is opened, graphite powder and carbon nanotubes is uniformly mixed with chlorosulfonic acid liquid and is fully infiltrated, H is then added dropwise into mixture2O2Solution；Step 3：H2O2Produce a large amount of gases with chlorosulfonic acid moment that reacts graphite layers are inserted into the form of chock, graphite is rapidly peeled off and be prepared into graphene as the increase of gas flow forms blow-up point.Step 4：The gas discharged then discharges rapidly, and the acid gas produced by reflux condenser is delivered back into reaction kettle device again.
Description
Technical field
The present invention relates to a kind of production method of nanostructured, particularly a kind of system of graphene carbon nanometer composite powder
Make method.
Background technology
In the preparation method of graphene, conventional method is mainly the following：Oxidation-reduction method, liquid phase mechanical stripping
Method, chemical vapour deposition technique etc..Separately there is document report to use the i.e. peelable system of super acids chlorosulfonic acid and hydrogen peroxide complex system
Standby graphene, whole reaction are rendered as explosion type, and chlorosulfonic acid meets water and vigorous reaction occurs, and graphite is rapidly peeled off in the gas explosion of generation
Form graphene.But this method produces substantial amounts of highly acid toxic gas while preparing graphene, such as HCl, SO2, generally
Way be by these acid gas by alkaline recovered liquid absorb neutralize, on the one hand consume lye, on the other hand cause acid gas
Waste.
The preparation process of carbon nanotubes decomposes under the high temperature conditions for carbon-source gas, is then dissolved into metal oxide oxidation catalyst
Agent particle（Such as Fe, Co, Ni）In, saturation after certain solubility is reached, finally separates out in catalyst surface, progressively grows into
For carbon nanotubes, i.e., grown by the method for chemical vapor deposition.Since the presence of metal oxide catalyst causes carbon
The purity of nanotube is relatively low, generally can reach more than 96%, remaining is agraphitic carbon and metallic catalyst.As magnetisable material
Metallic catalyst, in lithium battery use when can cause the self-discharge phenomenon of lithium battery so that influence lithium battery security and
Service life.At present, carbon nanotubes is a kind of lithium battery positive and negative anodes conductive additive of good performance, can be in lithium battery positive and negative anodes
Material surface forms good conductive network structure, the electric conductivity of material is effectively lifted, so as to lift the circulation of lithium battery
Performance.But the presence of magnetisable material have impact on the use of carbon nanotubes, the method for magnetisable material in conventional removal carbon nanotubes
It is that acidification is carried out to carbon nanotubes, usually using strong acid, such as HCl, H2SO4, HNO3 and the method for being accompanied by heating.
At present, the graphene of two-dimensional slice structure is with the electrical conductivity of its superelevation（Carrier mobility is up to 200,000cm2/
vs）For can more lift the electric conductivity of material in lithium battery positive and negative pole material.By the carbon nanotubes and two-dimensional structure of one-dimentional structure
Graphene combine and be used for lithium battery positive and negative pole material conductive additive and can form more perfect three-dimensional conductive with positive and negative pole material
Network structure, give full play to graphene and carbon nanotubes respectively as conductive agent advantage, effectively lift the lithium ion in material
Transmission, and then improve the circulation performance of battery, simultaneously because the high thermal conductivity coefficient of graphene, can also carry out battery effective
Heat dissipation, so as to improve battery temperature rise, lifts battery security and service life.
How to take simple and effective way to realize while the preparation of high-quality graphene and remove carbon nanotube dust
Metal impurities be the problem of comparison is real, the present invention has prepared the graphene of high quality by using one-step method, and realizes
Purifying to carbon nanotubes, and graphene and the composite diffusion of carbon nanotubes, solve substep prepare graphene and substep it is pure
Carbon nano tube, then a series of this flow of composite diffusion, while avoid loss caused by acid solution waste and heat losses etc.
Problem.
The content of the invention
To solve the above problems, the present invention provides a kind of preparation method of high purity graphite olefinic carbon nanometer composite powder, can
The graphene carbon nanometer composite powder of high-purity is made.
To achieve the above object, the technical solution adopted by the present invention is：A kind of high purity graphite olefinic carbon nanometer composite powder
Preparation method, include the following steps：
Step 1：Graphite powder and carbon nanotubes are subjected to solid phase mixing, then by graphite：Chlorosulfonic acid 1:25—1:300 mass ratio
Chlorosulfonic acid liquid is made；
Step 2：A certain amount of chlorosulfonic acid liquid is injected into pressure reaction still, reaction kettle stirring is opened, makes graphite powder and carbon nanometer
Pipe is uniformly mixed with chlorosulfonic acid liquid and is fully infiltrated, and H is then added dropwise into mixture2O2Solution；
Step 3：H2O2Produce a large amount of gases with chlorosulfonic acid moment that reacts graphite layers are inserted into the form of chock, with gas
The increase of the scale of construction forms blow-up point and rapidly peels off graphite and be prepared into graphene；
Step 4：The gas discharged then discharges rapidly, and the acid gas produced by reflux condenser is delivered back into reaction again
In kettle device.
As preference, the graphite powder is the mesh crystalline flake graphite of 100 mesh ~ 500.
As preference, the graphite powder is the mesh crystalline flake graphite of 100 mesh ~ 200.
As preference, the crystalline flake graphite purity is 99.5% ~ 99.99%.
As preference, the caliber of the carbon nanotubes is between 5nm ~ 100nm.
As preference, the caliber of the carbon nanotubes is between 8nm ~ 50nm.
As preference, the purity of carbon nanotubes is 96% ~ 97.5%.
As preference, the concentration of the H2O2 solution is 5% ~ 40%.
As preference, the concentration of the H2O2 solution is 20% ~ 25%.
As preference, the mass ratio of the graphite and chlorosulfonic acid is 1:100~1:200.
Using the beneficial effects of the invention are as follows：The high purity graphite olefinic carbon nanometer composite powder made by as above method,
Tested through other specification, ash content<0.5%, ICP resolution method test main metal element Fe, Ni, Co content within 50ppm,
Meet high standards of the lithium battery for metal impurities.Prepared high-purity composite granule is distributed in solvent, aid in
Dispersant, clipped, grinding can form the graphene/carbon nano-tube composite conducting slurry of favorable dispersibility, for lithium-ion electric
Pond positive and negative anodes conductive additive is remarkably improved the electric conductivity of material, lift the circulation service life of battery, and battery makes
Use security.
Brief description of the drawings
Fig. 1 is the compound high purity graphite that the preparation method of high purity graphite olefinic carbon nanometer composite powder of the present invention is prepared into
Alkene/carbon nanotube dust SEM patterns.
Embodiment
The present invention is described in detail below in conjunction with attached drawing.
The present invention proposes a kind of prepares high purity graphite alkene and carbon nanotubes is compound using explosion type reaction method one-step method
The method of powder, i.e. chlorosulfonic acid method prepare high purity graphite alkene/carbon nano-tube composite powder.This method can prepare the graphite of high quality
Alkene removes the metallic catalyst in carbon nanotubes at the same time, has both avoided the waste of acid gas pollution on the environment and lye, together
When it also avoid the waste of heat, realize and reaction solution heated in itself using reaction, so as to prepare purity by one-step method
Up to more than 99.5% high purity graphite alkene/carbon nano-tube composite powder.
Specific method is as follows：Graphite powder and carbon nanotubes are subjected to solid phase mixing first, then by graphite：Chlorosulfonic acid=1:
25~1:300 mass ratio injects a certain amount of chlorosulfonic acid liquid in pressure reaction still, open the stirring of reaction kettle make graphite powder and
Carbon nanotubes is uniformly mixed with chlorosulfonic acid liquid and is fully infiltrated, and a certain concentration then is added dropwise with certain speed into mixture
H2O2 solution, H2O2 and chlorosulfonic acid moment that reacts produced a large amount of gases graphite layers is inserted into the form of chock, with
The increase of gas flow forms blow-up point and rapidly peels off graphite and be prepared into graphene.The gas discharged then discharges rapidly
Going out, the acid gas such as HCl, SO2 produced by reflux condenser is turned again in reaction kettle device, meanwhile, there is reducing property
SO2 and H2O2 decompose the O2 reactions produced and be oxidized to SO3, formed again after then mixing acid gas HCl, SO3 and water reaction
Mixed strong acids.Since whole reaction process produces substantial amounts of heat, the strong acid liquid of formation is heated, then acceleration and carbon nanotubes
In metal impurities react, so that metal impurities be removed, play the purification of carbon nanotubes.
The mesh high-purity crystalline flake graphite of above-described graphite powder preferably 500 mesh ~ 100, special mesh number are the mesh of 100 mesh ~ 200；
Crystalline flake graphite purity is 99.5% ~ 99.99%, preferably 99.95% ~ 99.99%；The preferred caliber of carbon nanotubes between 5nm ~ 100nm,
Special 8nm ~ 50nm；The purity of carbon nanotubes is 96% ~ 97.5%；The concentration preferably 5% ~ 40% of certain density H2O2 solution,
Special 20% ~ 25%.The mass ratio of graphite and chlorosulfonic acid is preferably=1:100~1:200.
Graphene/carbon nano-tube composite granule after purification forms high-purity composite granule by washing, dry, crushing again,
Purity may be up to more than 99.5% after tested.Characterized through SEM, in composite granule below 5 layers of the graphene number of plies, graphene is received with carbon
Mitron is uniformly dispersed, and carbon nanotubes forms natural Physical barriers and is effectively isolated graphene film, it is therefore prevented that graphene sheet layer
Secondary returning fold.Tested through other specification, ash content<0.5%, ICP resolution method test main metal element Fe, Ni, Co content exist
Within 50ppm, meet high standards of the lithium battery for metal impurities.Prepared high-purity composite granule is distributed to solvent
In, aid in dispersant, clipped, grinding can form the graphene/carbon nano-tube composite conducting slurry of favorable dispersibility, be used for
Lithium ion battery plus-negative plate conductive additive is remarkably improved the electric conductivity of material, lifts the circulation service life of battery, and
The safety in utilization of battery.
As shown in Figure 1, compound high purity graphite alkene/carbon nanotube dust SEM patterns.
Technical scheme is described further with reference to embodiment, the embodiment of the present invention high purity graphite
The specification of alkene/carbon nano-tube composite powder is illustrated by purity 99.5%.
It is 97.8% first by the purity for the Fe catalyst systems that the 500 mesh graphite powders that purity is 99.9% are 15nm with caliber
Carbon nanotube dust carry out solid phase mixing, wherein graphite：Carbon nanotube mass ratio is 1:1, common 20kg, is then drifted along or through using V
Conjunction machine is uniformly mixed.Then the powder mixed is put into 500L autoclaves, then by graphite：Chlorosulfonic acid=1:30
Mass ratio load weighted chlorosulfonic acid liquid is injected into autoclave, open the stirring of reaction kettle, mixing time 30min.So
The H2O2 solution of 25% concentration is added dropwise with the speed of 1kg/min in backward reaction kettle mixture and is stirred continuously and healthily, until adding again
H2O2 solution is added to stop addition H2O2 solution untill no longer producing bubble, about 80 DEG C of tank body temperature, continues stirring reaction 1.5h.
Then whole reaction solution is subjected to press filtration by filter press and removes spent acid reaction solution, then filter cake is washed to repeatedly by distilled water
Dispersion liquid is in neutrality, and finally high purity graphite alkene/carbon nano-tube composite powder will be made after press filtration filtration cakes torrefaction, mechanical crushing again.
A small amount of composite granule is taken to carry out ash content test, content of ashes 0.38%；ICP tests metals content impurity, wherein Fe：38ppm, Ni：
17ppm, Co：14ppm.
Table 1 is the material basic performance of embodiment.
Table 1
Above content is only presently preferred embodiments of the present invention, for those of ordinary skill in the art, according to the thought of the present invention,
In specific embodiments and applications can be with many changes may be made, as long as these change the design without departing from the present invention,
Belong to protection scope of the present invention.
Claims (10)
1. a kind of preparation method of high purity graphite olefinic carbon nanometer composite powder, it is characterised in that include the following steps：
Step 1：Graphite powder and carbon nanotubes are subjected to solid phase mixing, then by graphite：Chlorosulfonic acid 1:25—1:300 mass ratio
Chlorosulfonic acid liquid is made；
Step 2：A certain amount of chlorosulfonic acid liquid is injected into pressure reaction still, reaction kettle stirring is opened, makes graphite powder and carbon nanometer
Pipe is uniformly mixed with chlorosulfonic acid liquid and is fully infiltrated, and H is then added dropwise into mixture2O2Solution；
Step 3：H2O2Produce a large amount of gases with chlorosulfonic acid moment that reacts graphite layers are inserted into the form of chock, with gas
The increase of the scale of construction forms blow-up point and rapidly peels off graphite and be prepared into graphene；
Step 4：The gas discharged then discharges rapidly, and the acid gas produced by reflux condenser is delivered back into reaction again
In kettle device.
2. the preparation method of high purity graphite olefinic carbon nanometer composite powder according to claim 1, it is characterised in that：It is described
Graphite powder is the mesh crystalline flake graphite of 100 mesh ~ 500.
3. the preparation method of high purity graphite olefinic carbon nanometer composite powder according to claim 2, it is characterised in that：It is described
Graphite powder is the mesh crystalline flake graphite of 100 mesh ~ 200.
4. the preparation method of high purity graphite olefinic carbon nanometer composite powder according to claim 2, it is characterised in that：It is described
Crystalline flake graphite purity is 99.5% ~ 99.99%.
5. the preparation method of high purity graphite olefinic carbon nanometer composite powder according to claim 2, it is characterised in that：It is described
The caliber of carbon nanotubes is between 5nm ~ 100nm.
6. the preparation method of high purity graphite olefinic carbon nanometer composite powder according to claim 5, it is characterised in that：It is described
The caliber of carbon nanotubes is between 8nm ~ 50nm.
7. the preparation method of high purity graphite olefinic carbon nanometer composite powder according to claim 1, it is characterised in that：Carbon is received
The purity of mitron is 96% ~ 97.5%.
8. the preparation method of high purity graphite olefinic carbon nanometer composite powder according to claim 1, it is characterised in that：It is described
H2O2The concentration of solution is 5% ~ 40%.
9. the preparation method of high purity graphite olefinic carbon nanometer composite powder according to claim 8, it is characterised in that：It is described
H2O2The concentration of solution is 20% ~ 25%.
10. the preparation method of high purity graphite olefinic carbon nanometer composite powder according to claim 1, it is characterised in that：Institute
The mass ratio for stating graphite and chlorosulfonic acid is 1:100~1:200.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPWO2019188540A1 (en) * | 2018-03-29 | 2021-04-08 | 日産化学株式会社 | Composition for undercoat layer formation of energy storage device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010022164A1 (en) * | 2008-08-19 | 2010-02-25 | William Marsh Rice University | Preparation of graphene nanoribbons from carbon nanotubes |
| 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 |
| CN105561912A (en) * | 2015-12-16 | 2016-05-11 | 浙江省海洋水产研究所 | Method for treating heavy metal ion wastewater with modified shell powder |
| CN106861617A (en) * | 2017-01-25 | 2017-06-20 | 河北大学 | A kind of preparation method and applications of Graphene/carbon nanotube composite material |
| CN107119346A (en) * | 2017-06-02 | 2017-09-01 | 东华大学 | A kind of preparation method of carbon nano tube/graphene composite fibre |
-
2017
- 2017-11-23 CN CN201711185790.5A patent/CN107902646A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010022164A1 (en) * | 2008-08-19 | 2010-02-25 | William Marsh Rice University | Preparation of graphene nanoribbons from carbon nanotubes |
| 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 |
| CN105561912A (en) * | 2015-12-16 | 2016-05-11 | 浙江省海洋水产研究所 | Method for treating heavy metal ion wastewater with modified shell powder |
| CN106861617A (en) * | 2017-01-25 | 2017-06-20 | 河北大学 | A kind of preparation method and applications of Graphene/carbon nanotube composite material |
| CN107119346A (en) * | 2017-06-02 | 2017-09-01 | 东华大学 | A kind of preparation method of carbon nano tube/graphene composite fibre |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPWO2019188540A1 (en) * | 2018-03-29 | 2021-04-08 | 日産化学株式会社 | Composition for undercoat layer formation of energy storage device |
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