CN115465857A - Conductive fluorinated graphene nanoribbon material and preparation method thereof - Google Patents
Conductive fluorinated graphene nanoribbon material and preparation method thereof Download PDFInfo
- Publication number
- CN115465857A CN115465857A CN202211123756.6A CN202211123756A CN115465857A CN 115465857 A CN115465857 A CN 115465857A CN 202211123756 A CN202211123756 A CN 202211123756A CN 115465857 A CN115465857 A CN 115465857A
- Authority
- CN
- China
- Prior art keywords
- fluorinated graphene
- graphene nanoribbon
- conductive
- dimensional
- conductive fluorinated
- 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
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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y30/00—Nanotechnology for materials or surface science, e.g. nanocomposites
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y40/00—Manufacture or treatment of nanostructures
-
- 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
- C01B2204/04—Specific amount of layers or specific thickness
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B2204/00—Structure or properties of graphene
- C01B2204/20—Graphene characterized by its properties
- C01B2204/22—Electronic properties
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B2204/00—Structure or properties of graphene
- C01B2204/20—Graphene characterized by its properties
- C01B2204/32—Size or surface area
-
- 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
Abstract
The scheme discloses a conductive fluorinated graphene nanoribbon material and a preparation method thereof in the field of battery material preparation. Mixing a methanol solution dissolved with metal salt and a non-bridged ligand, adding an organic ligand alcohol solution, reacting to obtain a rod-like coordination polymer, and then carbonizing at high temperature in an inert atmosphere to obtain a carbon nanorod; sequentially carrying out ultrasonic treatment in an alkaline solution and heat treatment activation in an inert atmosphere on the carbon nano rods to obtain a multilayer two-dimensional graphene nano belt; and placing the multilayer two-dimensional graphene nanoribbon in a reaction vessel, introducing inert gas to enable the pressure to reach 0.05-0.3 MPa, maintaining the pressure, continuously filling reaction gas containing a fluorine source into the reaction vessel, and cooling to obtain the conductive fluorinated graphene nanoribbon material. The conductive fluorinated graphene nanoribbon material obviously improves the working voltage platform and the energy output performance under the condition of high-rate discharge.
Description
Technical Field
The invention belongs to the field of battery material preparation, and particularly relates to a conductive fluorinated graphene nanoribbon material and a preparation method thereof.
Background
Due to the unique C-F bond, the carbon fluoride material has high energy density when applied to a lithium carbon fluoride primary battery. However, the electronegativity of fluorine atoms leads to high bond energy of C-F covalent bonds, and the C-F bonds are difficult to break in the electrochemical reaction process, so that the electrochemical reaction kinetic rate of the lithium-carbon fluoride battery is influenced, and particularly in the large-rate discharge process, the phenomena of serious polarization of a discharge curve, low working voltage platform, obvious voltage lag accompanied with loading instant and low energy output performance are shown.
In order to solve the above problems, control of the synthesis type of the C-F bond and the C/F element ratio in the material is achieved in addition to control of the carbon fluoride material synthesis process. By changing the structure and the size of the carbon source, the method is a technical approach for improving the migration rate of ions and electrons by regulating and controlling the transmission path of the ions and the battery. The nanocrystallization of the carbon source is an effective technical measure for changing the performance of the conventional lamellar carbon fluoride material.
The existing nano carbon source comprises a carbon nano tube, two-dimensional graphene, a carbon nano fiber material and the like. Among a plurality of materials, graphene is applied to various fields due to the characteristics of large specific surface area, conductivity, adjustable dielectric property and the like. The graphene nanoribbon not only inherits the two-dimensional structure and excellent physical and chemical properties of graphene; meanwhile, the special structure of the graphene nanoribbon enables the graphene nanoribbon to have unique properties, such as a special edge confinement effect, so that the graphene nanoribbon is more flexible and controllable than graphene.
However, the graphene nanoribbon is prepared by the existing method of longitudinally shearing and peeling the multi-walled carbon nanotube by the chemical oxidation method, the number of graphene layers of the obtained graphene nanoribbon is less than three, and the structural characteristics of the nanoribbon of high length-width ratio are added, so that electrons are limited in transverse movement in the graphene nanoribbon and can only move longitudinally, the band gap of the nanoribbon is wide, and the nanoribbon has the performance of a semiconductor. This means that graphene nanoribbons with semiconductor properties are directly used as a carbon source, which can provide a unique two-dimensional ion and electron transport structure, and rather, the conductivity of the carbon fluoride material and the high-rate discharge performance of the carbon fluoride battery are limited.
Disclosure of Invention
The invention aims to provide a graphene nanoribbon material and a preparation method thereof, and solves the problems of poor conductivity, large-magnification output voltage lag and low working platform of the graphene nanoribbon material in the prior art after fluorination.
According to the conductive fluorinated graphene nanoribbon material, the fluorinated graphene nanoribbon material is composed of multiple layers of two-dimensional fluorinated graphene and metal particles.
The invention has the beneficial effects that: the conductive fluorinated graphene nanoribbon material is composed of multiple layers of two-dimensional fluorinated graphene and metal particles with high specific surface and high conductivity, the band gap of the graphene nanoribbon is effectively reduced by the aid of the multiple layers of two-dimensional fluorinated graphene, the conductive fluorinated graphene nanoribbon material is characterized by being metal or semimetal, and the conductive fluorinated graphene nanoribbon material is different from semiconductor performance in the prior art in that the multiple layers of two-dimensional fluorinated graphene and the metal particles are subjected to high-temperature fluorination together to form the conductive fluorinated graphene nanoribbon material compatible with graphene, the metal particles and the fluorinated graphene nanoribbon, so that the conductivity of the fluorinated graphene nanoribbon material is effectively improved, and a working voltage platform and energy output performance under a large-rate discharge condition are obviously improved.
Further, the number of layers of the multilayer two-dimensional fluorinated graphene is 3-10, the width is 10-20 nm, and the length is 200-500 nm.
According to the preparation method of the conductive fluorinated graphene nanoribbon material, the rodlike organic-metal coordination polymer is subjected to high-temperature carbonization, ultrasonic stripping in an alkaline solution and high-temperature activation in sequence to obtain the multilayer two-dimensional fluorinated graphene nanoribbon, and the multilayer two-dimensional fluorinated graphene nanoribbon is subjected to fluorination reaction to obtain the conductive fluorinated graphene nanoribbon.
Further, the organic-metal coordination polymer is obtained by mixing an alcohol solution dissolved with metal salt and a non-bridged ligand, adding an organic ligand solution, stirring and standing.
More specifically, the preparation method of the conductive fluorinated graphene nanoribbon material comprises the following steps:
s1, polymerization reaction: mixing a methanol solution dissolved with metal salt and a non-bridging ligand, adding a methanol solution containing an organic ligand, fully stirring, and standing for 24-72 h to obtain the rod-like coordination polymer;
s2, high-temperature carbonization: carbonizing the rod-like coordination polymer at 800-1200 ℃ under inert atmosphere to obtain a carbon nanorod;
s3, ultrasonic stripping and high-temperature activation: sequentially carrying out ultrasonic treatment in an alkaline solution and heat treatment activation at 600-1000 ℃ in an inert atmosphere on the carbon nanorods to obtain a multilayer two-dimensional graphene nanoribbon;
s4, fluorination reaction: and placing the multilayer two-dimensional graphene nanoribbon in a reaction vessel at the temperature of 600-800 ℃, introducing nitrogen or argon to enable the internal pressure to reach 0.05-0.3 MPa, keeping the pressure for 12-15 h, continuously filling 4-8 h of reaction gas containing a fluorine source into the reaction vessel, and cooling to obtain the conductive fluorinated graphene nanoribbon material.
Further, the reaction gas in S4 is a mixture of a fluorine source and a diluent gas, wherein the volume fraction of the fluorine source is 6% to 10%, the diluent gas is nitrogen or argon, and the fluorine source is fluorine gas or nitrogen trifluoride.
Further, the flow rate of the reaction gas is 0.08-0.20 ml/min.
Further, the metal salt is one of zinc acetate, nickel chloride, ferric chloride, copper nitrate and cobalt acetate, and the concentration is 10-50 mM.
Further, the non-bridged ligand is one of polydimethyldiallyl ammonium chloride or salicylic acid.
Furthermore, the organic ligand is one of 2,5-dihydroxy terephthalic acid, 1,4-terephthalic acid, isophthalic acid, 1-1-biphenyl-4-carboxylic acid and dimethyl imidazole, and the concentration is 100-200 mM.
The principle and the effect of the method are as follows:
1. the fluorinated graphene nanoribbon material is synthesized by controlling the organic-metal coordination polymer. In the process of synthesizing the organic-metal coordination polymer, introducing a non-bridging ligand which cannot be connected with metal salt, effectively controlling the growth of the coordination polymer in a specific direction to obtain a rodlike coordination polymer with a stable structure, carbonizing at high temperature in an inert atmosphere, reducing metal ions into metal nanoparticles to obtain carbon nanorods with a stable shape, wherein the metal particles contained in the carbon nanorods are used for catalyzing carbon-carbon bond fracture to form a catalyst of nanobelts on one hand, so that graphene superposed on the carbon nanorods is scattered, and the conductive graphene nanobelts formed by multiple layers of two-dimensional graphene are formed; on the other hand, the conductivity of the material can be improved.
2. The number of graphene layers is controlled by ultrasonic stripping of an alkaline solution, the carbon layer on the carbon nanorod is stripped and graphene is formed by performing ultrasonic treatment on the carbon nanorod in the alkaline solution (preferably a potassium hydroxide solution), at the moment, the carbon nanorod is formed by overlapping multiple layers of graphene, then, the carbon nanorod is activated by heat treatment at 600-1000 ℃ in inert gas, so that the metal particles catalyze the carbon-carbon bond on the graphene to break, the graphene overlapped into the carbon nanorod is dispersed, and a graphene nanoribbon consisting of 3-10 layers of graphene is obtained, and the fluorination reaction degree of the multilayer graphene nanoribbon is controlled by the fluorine source gas reaction rate and time in a high-temperature fluorination stage, so that the conductive fluorinated graphene nanoribbon material compatible with the graphene, the metal particles and the fluorinated graphene nanoribbon is formed.
3. The obtained conductive fluorinated graphene nanoribbon material is composed of multilayer two-dimensional fluorinated graphene with high specific surface and high conductivity and metal particles, the band gap of the graphene nanoribbon is effectively reduced by the multilayer fluorinated graphene structure in the fluorinated graphene nanoribbon, the fluorinated graphene nanoribbon is represented as a metal or semi-metal characteristic, and the conductive fluorinated graphene nanoribbon material and the metal particles provide effective guarantee for the conductivity of the fluorinated graphene nanoribbon. In addition, the transmission path of lithium ions and electrons on the electrode is greatly shortened by the high-length-diameter-ratio nanobelt structure, the contact interface of electrolyte and a material can be effectively improved, and the ions can be rapidly embedded and separated in the material and electrolyte interface, so that the conductive fluorinated graphene nanobelt material prepared by the method has high conductivity, and simultaneously optimizes the ion transmission dynamics of the electrode material, thereby effectively solving the problems of poor high-rate discharge output performance, voltage lag and low working voltage platform of a commercial fluorinated carbon material.
Drawings
FIG. 1 is a flow chart of a method for preparing a conductive fluorinated graphene nanoribbon material according to the present invention;
FIG. 2 is a micro-topography of a fluorinated graphene nanoribbon cathode material prepared in accordance with an embodiment;
fig. 3 is a graph comparing discharge data of the fluorinated graphene nanoribbon cathode material prepared by the present invention and the fluorinated graphene material under a 2C magnification condition.
Detailed Description
The following is further detailed by way of specific embodiments:
the specific implementation process is as follows: the preparation process of the conductive fluorinated graphene nanoribbon material in the invention is shown in fig. 1.
The first embodiment is as follows:
polymerization reaction: mixing a methanol solution dissolved with 30mM zinc acetate with salicylic acid, adding a methanol solution of 150mM 2, 5-dihydroxy terephthalic acid, fully stirring, and standing for 48h to obtain a shape coordination polymer;
high-temperature carbonization: carrying out high-temperature carbonization on the rod-shaped coordination polymer at 1000 ℃ in an inert atmosphere to obtain a carbon nano rod with the diameter of 30nm and the length of 300 nm;
ultrasonic stripping and high-temperature activation: sequentially carrying out ultrasonic treatment in an alkaline solution and heat treatment activation at 800 ℃ in an inert atmosphere on the carbon nanorods to obtain 5 layers of two-dimensional graphene nanoribbons formed by graphene with the width of 15 nm;
fluorination reaction: placing a two-dimensional graphene nanoribbon composed of 5 layers of graphene with the width of 15nm in a reaction container with the pressure and the temperature of 700 ℃, introducing nitrogen to enable the internal pressure to be 0.15MPa, maintaining the pressure for 14h, continuously filling a reaction gas containing a fluorine source into the reaction container, wherein the reaction gas is a mixture of fluorine gas and nitrogen, the volume fraction of the fluorine gas is 8%, the gas flow rate is 0.1ml/min, reacting for 6h, and cooling to obtain the conductive fluorinated graphene nanoribbon material.
The second embodiment:
polymerization reaction: mixing a methanol solution dissolved with 10mM nickel chloride with salicylic acid, adding a methanol solution of 100mM dimethyl imidazole, fully stirring, and standing for 24h to obtain a shape coordination polymer;
high-temperature carbonization: carrying out high-temperature carbonization on the rod-shaped coordination polymer at 800 ℃ in an inert atmosphere to obtain a carbon nano rod with the diameter of 20nm and the length of 200 nm;
ultrasonic stripping and high-temperature activation: sequentially carrying out ultrasonic treatment in an alkaline solution and heat treatment activation at 600 ℃ in an inert atmosphere on the carbon nanorods to obtain 3 layers of two-dimensional graphene nanoribbons formed by graphene with the width of 10 nm;
fluorination reaction: placing a two-dimensional graphene nanoribbon composed of 3 layers of graphene with the width of 10nm in a reaction container at the temperature of 600 ℃, introducing argon gas to enable the internal pressure to be 0.05MPa, maintaining the pressure for 12h, then continuously filling reaction gas into the reaction container, wherein the reaction gas is a mixture of fluorine gas and nitrogen gas, the volume fraction of the fluorine gas is 6%, the gas flow rate is 0.08ml/min, reacting for 4h, and cooling to obtain the conductive fluorinated graphene nanoribbon material.
The third embodiment is as follows:
polymerization reaction: mixing a methanol solution dissolved with 10mM of cobalt acetate with salicylic acid, adding a methanol solution of 100mM of isophthalic acid, fully stirring, and standing for 24 hours to obtain a shape coordination polymer;
high-temperature carbonization: carrying out high-temperature carbonization on the rod-shaped coordination polymer at 800 ℃ in an inert atmosphere to obtain a carbon nano rod with the diameter of 20nm and the length of 200 nm;
ultrasonic stripping and high-temperature activation: sequentially carrying out ultrasonic treatment in an alkaline solution and heat treatment activation at 1000 ℃ under an inert atmosphere on the carbon nanorods to obtain a two-dimensional graphene nanoribbon consisting of 3 layers of graphene with the width of 10 nm;
fluorination reaction: placing a two-dimensional graphene nanoribbon composed of 3 layers of graphene with the width of 10nm in a reaction vessel with the temperature of 600 ℃, introducing argon gas to enable the internal pressure to be 0.1MPa, keeping the pressure for 12h, continuously filling reaction gas into the reaction vessel, wherein the reaction gas is a mixture of nitrogen trifluoride and argon gas, the volume fraction of fluorine gas is 6%, the gas flow rate is 0.08ml/min, and cooling after reacting for 4h to obtain the conductive fluorinated graphene nanoribbon material.
The fourth embodiment is as follows:
polymerization reaction: mixing a methanol solution dissolved with 50mM of copper nitrate with poly dimethyl diallyl ammonium chloride, adding a methanol solution of 200mM of pyromellitic acid, fully stirring, and standing for 72 hours to obtain a shape coordination polymer;
high-temperature carbonization: carrying out high-temperature carbonization on the rod-shaped coordination polymer at 1000 ℃ in an inert atmosphere to obtain a carbon nano rod with the diameter of 30nm and the length of 500 nm;
ultrasonic stripping and high-temperature activation: sequentially carrying out ultrasonic treatment in an alkaline solution and heat treatment activation at 1000 ℃ under an inert atmosphere on the carbon nanorods to obtain two-dimensional graphene nanoribbons consisting of 5 layers of graphene with the width of 15 nm;
fluorination reaction: placing a two-dimensional graphene nanoribbon composed of 5 layers of graphene with the width of 15nm in a reaction vessel with the temperature of 800 ℃, introducing argon gas to enable the internal pressure to be 0.1MPa, keeping the pressure for 12h, continuously filling reaction gas into the reaction vessel, wherein the reaction gas is a mixture of nitrogen trifluoride and argon gas, the volume fraction of fluorine gas is 9%, the gas flow rate is 0.1ml/min, reacting for 8h, and cooling to obtain the conductive fluorinated graphene nanoribbon material.
The fifth embodiment:
polymerization reaction: mixing a methanol solution dissolved with 50mM of cobalt acetate with poly dimethyl diallyl ammonium chloride, adding a methanol solution of 200mM of pyromellitic acid, fully stirring, and standing for 72 hours to obtain a shape coordination polymer;
high-temperature carbonization: carrying out high-temperature carbonization on the rod-shaped coordination polymer at 1200 ℃ in an inert atmosphere to obtain a carbon nano rod with the diameter of 40nm and the length of 500 nm;
ultrasonic stripping and high-temperature activation: sequentially carrying out ultrasonic treatment in an alkaline solution and heat treatment activation at 1000 ℃ in an inert atmosphere on the carbon nanorods to obtain 10 layers of two-dimensional graphene nanoribbons formed by 20 nm-wide graphene;
fluorination reaction: placing a two-dimensional graphene nanoribbon composed of 10 layers of graphene with the width of 20nm in a reaction vessel with the temperature of 800 ℃, introducing argon to enable the internal pressure to be 0.3MPa, keeping the pressure for 15h, then continuously filling reaction gas into the reaction vessel, wherein the reaction gas is a mixture of nitrogen trifluoride and argon, the volume fraction of fluorine gas is 10%, the gas flow rate is 0.20ml/min, reacting for 8h, and cooling to obtain the conductive fluorinated graphene nanoribbon material.
The microscopic morphology of the conductive fluorinated graphene nanoribbon material prepared in example 1 is shown in fig. 2, and compared with the existing commercial fluorinated graphene material (hubei Zhuo Xi GCFX), the specific experimental process is as follows: the conductive fluorinated graphene nanoribbon material prepared in the embodiment 1 is used as a positive electrode material, SP and CNTS are conductive agents, CMC + SBR is a binder, and the positive electrode material is prepared by the following steps: conductive agent: the mass ratio of the binder = 80. Then, another set of lithium fluorocarbon batteries was assembled by using a commercial graphene fluoride material as a positive electrode material, and the rest was the same as in example 1. The two groups of lithium fluorocarbon batteries are subjected to discharge test under the conditions of normal temperature of 25 ℃ and 2C multiplying power at the same time, and the comparison of multiplying power performance and low-pressure hysteresis performance is shown in figure 3. In fig. 3, it is clearly observed that the battery made of the commercial fluorinated graphene material has an obvious voltage hysteresis peak under a rate of 2C, the low-wave voltage is as low as 1.91V, the voltage of a discharge platform is 2.34V, the window of the working battery is 3.58V-1.50V, and the gram specific capacity of the material is 653.41mAh/g. As can be seen from fig. 3, the discharge low-wave voltage of the battery manufactured by using the conductive fluorinated graphene nanoribbon material in embodiment 1 is increased to 2.67V, the platform voltage can be increased to 2.41V, and the gram specific capacity of the corresponding material can reach 756.16mAh/g. Therefore, under the same battery preparation condition, the voltage platform of the battery made of the high-voltage carbon fluoride composite positive electrode material is increased from 2.34V to 2.67V under the condition of the same multiplying power of 2C, the specific energy increasing rate reaches 32.04 percent, and the conductive fluorinated graphene nanoribbon material has good conductivity and higher working voltage.
Claims (10)
1. A conductive fluorinated graphene nanoribbon material, characterized in that: the fluorinated graphene nanoribbon material is composed of multiple layers of two-dimensional fluorinated graphene and metal particles.
2. The conductive fluorinated graphene nanoribbon material of claim 1, wherein: the number of layers of the multilayer two-dimensional fluorinated graphene is 3-10, the width is 10-20 nm, and the length is 200-500 nm.
3. The method of preparing a conductive fluorinated graphene nanoribbon material of claim 1, wherein: sequentially carrying out high-temperature carbonization, ultrasonic stripping in an alkaline solution and high-temperature activation on a rodlike organic-metal coordination polymer to obtain a multilayer two-dimensional fluorinated graphene belt, and carrying out fluorination reaction on the multilayer two-dimensional fluorinated graphene to obtain the conductive fluorinated graphene nanobelt.
4. The method for preparing a conductive fluorinated graphene nanoribbon material according to claim 3, wherein the method comprises the following steps: the organic-metal coordination polymer is obtained by mixing an alcoholic solution dissolved with metal salt and a non-bridged ligand, adding an alcoholic solution containing an organic ligand, stirring and standing.
5. The method for preparing a conductive fluorinated graphene nanoribbon material according to claim 4, wherein: the method comprises the following steps:
s1, polymerization reaction: mixing a methanol solution dissolved with metal salt with a non-bridging ligand, adding an organic ligand alcohol solution, fully stirring, and standing for 24-72 hours to obtain the rod-like coordination polymer;
s2, high-temperature carbonization: carbonizing the rod-like coordination polymer at 800-1200 ℃ under inert atmosphere to obtain a carbon nanorod;
s3, ultrasonic stripping and high-temperature activation: sequentially carrying out ultrasonic treatment in an alkaline solution and heat treatment activation at 600-1000 ℃ in an inert atmosphere on the carbon nanorods to obtain a multilayer two-dimensional graphene nanoribbon;
s4, fluorination reaction: and placing the multilayer two-dimensional graphene nanoribbon in a reaction vessel at the temperature of 600-800 ℃, introducing nitrogen or argon to enable the internal pressure to reach 0.05-0.3 MPa, maintaining the pressure for 12-15 h, continuously filling reaction gas containing a fluorine source into the reaction vessel for 4-8 h, and cooling to obtain the conductive fluorinated graphene nanoribbon material.
6. The method for preparing a conductive fluorinated graphene nanoribbon material according to claim 5, wherein: s4, the reaction gas is a mixture of a fluorine source and a diluent gas, wherein the volume fraction of the fluorine source is 6% -10%, the diluent gas is nitrogen or argon, and the fluorine source is fluorine gas or nitrogen trifluoride.
7. The method of claim 6, wherein the method comprises the steps of: the flow rate of the reaction gas is 0.08-0.20 ml/min.
8. The method for preparing a conductive fluorinated graphene nanoribbon material according to any one of claims 5 to 7, wherein: the metal salt is one of zinc acetate, nickel chloride, ferric chloride, copper nitrate and cobalt acetate, and the concentration is 10-50 mM.
9. The method for preparing a conductive fluorinated graphene nanoribbon material according to claim 8, wherein: the non-bridged ligand is one of polydimethyldiallyl ammonium chloride or salicylic acid.
10. The method for preparing a conductive fluorinated graphene nanoribbon material according to claim 9, wherein: the organic ligand is one of 2,5-dihydroxy terephthalic acid, 1,4-terephthalic acid, isophthalic acid, 1-1-biphenyl-4-carboxylic acid and dimethyl imidazole, and the concentration is 100-200 mM.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211123756.6A CN115465857A (en) | 2022-09-15 | 2022-09-15 | Conductive fluorinated graphene nanoribbon material and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211123756.6A CN115465857A (en) | 2022-09-15 | 2022-09-15 | Conductive fluorinated graphene nanoribbon material and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115465857A true CN115465857A (en) | 2022-12-13 |
Family
ID=84332985
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211123756.6A Pending CN115465857A (en) | 2022-09-15 | 2022-09-15 | Conductive fluorinated graphene nanoribbon material and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115465857A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4515709A (en) * | 1982-09-10 | 1985-05-07 | Central Glass Co., Ltd. | Ternary intercalation compound of a graphite with an alkali metal fluoride and fluorine, a process for producing the same, and an electrically conductive material comprising the ternary intercalation compound |
| CN108383110A (en) * | 2018-04-18 | 2018-08-10 | 天津大学 | A kind of preparation method of fluorinated graphene nanobelt |
| CN108946706A (en) * | 2017-05-18 | 2018-12-07 | 天津大学 | A method of fluorinated graphene film is prepared by Fluorine source of fluorine gas |
| CN113422059A (en) * | 2021-06-17 | 2021-09-21 | 贵州梅岭电源有限公司 | High-voltage carbon fluoride composite cathode material and preparation method thereof |
| CN113594404A (en) * | 2021-07-29 | 2021-11-02 | 贵州梅岭电源有限公司 | Preparation method of novel integrated carbon fluoride anode |
-
2022
- 2022-09-15 CN CN202211123756.6A patent/CN115465857A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4515709A (en) * | 1982-09-10 | 1985-05-07 | Central Glass Co., Ltd. | Ternary intercalation compound of a graphite with an alkali metal fluoride and fluorine, a process for producing the same, and an electrically conductive material comprising the ternary intercalation compound |
| CN108946706A (en) * | 2017-05-18 | 2018-12-07 | 天津大学 | A method of fluorinated graphene film is prepared by Fluorine source of fluorine gas |
| CN108383110A (en) * | 2018-04-18 | 2018-08-10 | 天津大学 | A kind of preparation method of fluorinated graphene nanobelt |
| US10343921B1 (en) * | 2018-04-18 | 2019-07-09 | Tianjin University | Method for preparing fluorinated graphene nanoribbons |
| CN113422059A (en) * | 2021-06-17 | 2021-09-21 | 贵州梅岭电源有限公司 | High-voltage carbon fluoride composite cathode material and preparation method thereof |
| CN113594404A (en) * | 2021-07-29 | 2021-11-02 | 贵州梅岭电源有限公司 | Preparation method of novel integrated carbon fluoride anode |
Non-Patent Citations (1)
| Title |
|---|
| PRADIP PACHFULE等: "Fabrication of carbon nanorods and graphene nanoribbons from a metal–organic framework", 《NATURE CHEMISTRY》, vol. 8, pages 718 - 724, XP055725941, DOI: 10.1038/nchem.2515 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Li et al. | Advances in transition-metal (Zn, Mn, Cu)-based MOFs and their derivatives for anode of lithium-ion batteries | |
| Garakani et al. | Cobalt carbonate/and cobalt oxide/graphene aerogel composite anodes for high performance Li-ion batteries | |
| Saroja et al. | Facile synthesis of heteroatom doped and undoped graphene quantum dots as active materials for reversible lithium and sodium ions storage | |
| JP6026283B2 (en) | Conductive graphene polymer binder for electrochemical cell electrodes | |
| KR102276658B1 (en) | Anode material with graphene-mxene-silicon of secondary battery and the method thereof | |
| CN108573763B (en) | Preparation method of wire and cable conductor, graphene-coated metal powder and conductor | |
| Sun et al. | Solvothermal synthesis of ternary Cu2O-CuO-RGO composites as anode materials for high performance lithium-ion batteries | |
| Wu et al. | Synthesis and characterization of Fe@ Fe2O3 core-shell nanoparticles/graphene anode material for lithium-ion batteries | |
| Sun et al. | Controllable synthesis of Fe2O3-carbon fiber composites via a facile sol-gel route as anode materials for lithium ion batteries | |
| Wang et al. | Solvothermal synthesis of MoS2/carbon nanotube composites with improved electrochemical performance for lithium ion batteries | |
| CN108963204B (en) | Preparation method of silicon-based/sulfide negative electrode material with graphene-like sandwich structure | |
| Fu et al. | Surface pore-containing NiCo2O4 nanobelts with preferred (311) plane supported on reduced graphene oxide: A high-performance anode material for lithium-ion batteries | |
| KR101888743B1 (en) | Composite including porous grapheme and carbonaceous material | |
| Ye et al. | One-pot synthesis of Fe2O3/graphene and its lithium-storage performance | |
| KR102405612B1 (en) | Anode material with graphene-agnw-silicon of secondary battery and the method thereof | |
| KR102405622B1 (en) | Anode material with graphene-cnt-silicon coreshell of secondary battery and the method thereof | |
| CN108336310B (en) | Composite material based on self-supporting reduced graphene oxide roll and preparation method | |
| KR102228769B1 (en) | Anode material with graphene-agnw-silicon of secondary battery and the method thereof | |
| CN111969193A (en) | Si @ MXene nano composite material and preparation method thereof | |
| CN110739159B (en) | Preparation method of nanowire-shaped manganese dioxide/graphene aerogel composite material for supercapacitor | |
| Rostami et al. | Unlocking the power of nano-heterostructured engineering: Advancements in Ti3C2Tx MXene-based heterojunctions for rechargeable ion batteries | |
| CN115465857A (en) | Conductive fluorinated graphene nanoribbon material and preparation method thereof | |
| Lin et al. | Fe2O3–SnO2–graphene films as flexible and binder-free anode materials for lithium-ion batteries | |
| Zhao et al. | Nitrogen-doped carbon nanotubes coated with zinc oxide nanoparticles as sulfur encapsulator for high-performance lithium/sulfur batteries | |
| Naskar et al. | Dendrite growth inhibition in a V6O13 nanorods based non-aqueous Zn-ion battery by a scalable polycarbazole@ Carbon nanotubes overlayer |
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 |