CN110853935A - Molybdenum sulfide supercapacitor electrode and preparation method thereof - Google Patents
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- CWQXQMHSOZUFJS-UHFFFAOYSA-N molybdenum disulfide Chemical compound S=[Mo]=S CWQXQMHSOZUFJS-UHFFFAOYSA-N 0.000 title claims abstract description 25
- 238000002360 preparation method Methods 0.000 title claims abstract description 9
- 238000000034 method Methods 0.000 claims abstract description 31
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 17
- 238000001035 drying Methods 0.000 claims abstract description 16
- 238000003756 stirring Methods 0.000 claims abstract description 15
- 238000002156 mixing Methods 0.000 claims abstract description 12
- 239000002033 PVDF binder Substances 0.000 claims abstract description 11
- 229920002981 polyvinylidene fluoride Polymers 0.000 claims abstract description 11
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 claims abstract description 10
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 10
- 238000009210 therapy by ultrasound Methods 0.000 claims abstract description 10
- 239000006230 acetylene black Substances 0.000 claims abstract description 7
- 239000011268 mixed slurry Substances 0.000 claims abstract description 5
- 238000007639 printing Methods 0.000 claims abstract description 5
- 238000007650 screen-printing Methods 0.000 claims abstract description 5
- 229910052961 molybdenite Inorganic materials 0.000 claims description 24
- 229910052982 molybdenum disulfide Inorganic materials 0.000 claims description 24
- 238000012360 testing method Methods 0.000 claims description 18
- 238000005119 centrifugation Methods 0.000 claims description 10
- 239000000843 powder Substances 0.000 claims description 9
- 239000002002 slurry Substances 0.000 claims description 9
- 239000000203 mixture Substances 0.000 claims description 7
- 239000008367 deionised water Substances 0.000 claims description 6
- 229910021641 deionized water Inorganic materials 0.000 claims description 6
- 238000010008 shearing Methods 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 238000004108 freeze drying Methods 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 230000003213 activating effect Effects 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 238000007710 freezing Methods 0.000 claims description 3
- 230000008014 freezing Effects 0.000 claims description 3
- 230000004927 fusion Effects 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 3
- 239000003990 capacitor Substances 0.000 abstract description 3
- 238000004146 energy storage Methods 0.000 abstract description 3
- 239000000463 material Substances 0.000 description 16
- 238000004458 analytical method Methods 0.000 description 6
- 238000005520 cutting process Methods 0.000 description 5
- 239000007772 electrode material Substances 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 238000002425 crystallisation Methods 0.000 description 2
- 230000008025 crystallization Effects 0.000 description 2
- 238000013211 curve analysis Methods 0.000 description 2
- 238000002484 cyclic voltammetry Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000001027 hydrothermal synthesis Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 239000011358 absorbing material Substances 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012983 electrochemical energy storage Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000012792 lyophilization process Methods 0.000 description 1
- 238000004377 microelectronic Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002086 nanomaterial Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000011232 storage material Substances 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 229910052723 transition metal Inorganic materials 0.000 description 1
- 150000003624 transition metals Chemical class 0.000 description 1
- 238000002604 ultrasonography Methods 0.000 description 1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/22—Electrodes
- H01G11/24—Electrodes characterised by structural features of the materials making up or comprised in the electrodes, e.g. form, surface area or porosity; characterised by the structural features of powders or particles used therefor
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/22—Electrodes
- H01G11/30—Electrodes characterised by their material
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/84—Processes for the manufacture of hybrid or EDL capacitors, or components thereof
- H01G11/86—Processes for the manufacture of hybrid or EDL capacitors, or components thereof specially adapted for electrodes
-
- 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
- Y02E60/13—Energy storage using capacitors
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
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Abstract
The invention discloses a molybdenum sulfide super capacitor electrode and a preparation method thereof, and MoS is prepared by adopting a new method2And MoS prepared by the new method2The method comprises the steps of adding acetylene black and polyvinylidene fluoride into an N-methyl pyrrolidone (NMP) solution for size mixing, then putting the size mixed slurry into an ultrasonic machine for ultrasonic treatment for 20 minutes, stirring the size uniformly after the ultrasonic treatment is finished, printing the size uniformly on carbon paper through screen printing, putting the carbon paper into a dryer for drying, and making an electrode after the drying is finished. According to the molybdenum sulfide supercapacitor electrode and the preparation method thereof, the MoS prepared by the novel method is adopted2The structure between layers is broken, so that the specific surface area of the internal structure is increased, the discharge time of the internal structure is increased, the charge time of the internal structure is shortened, and the improvement is achievedMoS2The energy storage efficiency is improved, and the performance of the molybdenum sulfide super capacitor electrode is improved obviously.
Description
Technical Field
The invention belongs to the technical field of microelectronic device materials, in particular to the technical field of electrode materials of super capacitors.
Background
Very serious problems facing the human society in the twenty-first century are energy problems and environmental problems. The focus of global attention has been the development and utilization of clean energy and the development and utilization of renewable energy. From the perspective of more reasonable and full utilization of electric energy, electric energy development and electric energy storage have the same important significance, so that research on various electrochemical energy storage properties is concerned to a great extent. With the drilling in of graphene-headed two-dimensional layered nanomaterials, graphene-like materials, e.g. MoS2The study of sulfide of transition metals has been also gradually noticed. MoS since the 90 s of the 20 th century2Due to the special layered structure and anisotropy, the application of the material in industrial production is gradually enlarged and the dosage is continuously increased, and the material is mainly applied to various fields of friction lubrication, catalytic refining super wave-absorbing material electronic probes, oxygen storage materials, electrode materials, photoelectrochemistry oxygen generation catalysts and the like.
By using MoS2Materials are receiving more and more attention to the production of supercapacitor electrodes. Conventional MoS2The materials can be produced by hydrothermal method, solution method, surfactant-assisted method, etc., and MoS produced by these methods2The material has the defects of higher reaction pressure, poorer crystallization, more impurities and the like, and is not beneficial to the production of the supercapacitor electrode.
Disclosure of Invention
(1) Solves the technical problem
The invention aims to provide a molybdenum sulfide supercapacitor electrode and a preparation method thereof, and aims to solve the problem of the existing MoS provided in the background technology2The material has the technical problems of high reaction pressure, poor crystallization, excessive impurities and the like, and is not beneficial to the production of the supercapacitor electrode.
(2) Technical scheme
In order to realize the purpose, the invention provides a preparation method of a molybdenum sulfide supercapacitor electrode, which comprises the following steps:
s1: mixing MoS2Adding an activating agent and deionized water into a vessel for fusion, and then fully stirring;
s2: after uniformly stirring, putting the vessel into an ultrasonic machine for fixing and slicing;
s3: taking out six clean small test tubes after the slicing treatment is finished, pouring the solution into the clean small test tubes, and carrying out four times of centrifugal operation on the solution;
s4: after the centrifugation in S3 is completed, the top layer of clear liquid is poured out, and a test tube is covered by a plurality of small holes, so that MoS remained on the wall of the test tube2Putting the mixture into a refrigerator for freeze-drying treatment;
s5: for the lyophilized MoS2Vacuumizing to obtain powdered MoS2And mixing the powdered MoS2Putting the mixture into a refrigerator, and obtaining the final MoS after the freezing is finished2Powder;
s6: mixing slurry;
s7: putting the mixed slurry into an ultrasonic machine for ultrasonic treatment for 20 minutes, and stirring the slurry uniformly after the ultrasonic treatment is finished;
s8: and (3) uniformly printing the slurry in the S7 on carbon paper by screen printing, putting the carbon paper into a dryer for drying, and preparing the electrode after drying.
As a preferable technical solution of the present invention, in the step S2, the ultrasonic power is 60W, the temperature is set to 20 degrees celsius, and the rotation speed of the high speed shearing machine is set to 7000 revolutions.
As a preferred embodiment of the present invention, the specific steps of performing four centrifugation operations on the solution in step S3 are as follows: when the centrifuge is put into the centrifuge for the first time, the rotating speed is set to 3000 revolutions, and the time is set to 30 minutes; after the completion, taking out six test tubes filled with the solution, pouring out the upper layer solution, and leaving solid substances on the walls of the test tubes; adding new deionized water, and performing second-time to fourth-time centrifugation, wherein the operation speed is set to 10000 revolutions and the time is set to 10 minutes in the second-time to fourth-time centrifugation.
In a preferred embodiment of the present invention, the time for the lyophilization process in step S4 is set to twenty-four hours.
As a preferred technical solution of the present invention, the slurry mixing process in step S6 is to mix MoS2Adding the powder, acetylene black and polyvinylidene fluoride (PVDF) into an N-methylpyrrolidone (NMP) solution; and wherein MoS2The mass ratio of the powder to the acetylene black to the polyvinylidene fluoride (PVDF) is 7-10:1-3: 1-3.
In a preferred embodiment of the present invention, in the step S7, the stirring method is to stir the mixture on the stirrer at a low speed for half an hour and at a high speed for one and half an hour.
As a preferable technical solution of the present invention, the temperature set when the dryer dries in step S8 is 90-120 ℃.
As a preferred embodiment of the present invention, the drying time of the dryer in the step S8 is two hours.
The invention also provides a molybdenum sulfide supercapacitor electrode, and the electrode manufactured by adopting any one of the preparation methods of the molybdenum sulfide supercapacitor electrode.
(3) Advantageous effects
Compared with the prior art, the invention has the beneficial effects that: the preparation method provided by the invention is used for treating powdery MoS by utilizing ultrasonic waves2Cutting to break the structure between layers, thereby increasing the specific surface area of the internal structure, further increasing the discharge time and shortening the charge time, compared with the MoS manufactured by the traditional methods such as a hydrothermal method, a solution method and the like2Remarkably improves MoS2The energy storage efficiency is improved, and the defects of low specific surface area, poor charge and discharge performance and poor cycle performance of the existing molybdenum sulfide are overcome; compared with the MoS manufactured by the traditional method2The electrode produced by the material solves the problem of the prior molybdenum sulfide super capacitorThe electrode has the problems of poor polar cyclicity and poor charge-discharge performance, and can effectively improve the cyclicity, high rate performance, specific capacity and the like of the conventional molybdenum sulfide supercapacitor electrode.
Drawings
FIG. 1 shows an example of an ultrasonically sheared MoS2Material is shown schematically in a Scanning Electron Microscope (SEM).
FIG. 2 shows MoS in comparative example2Material is shown schematically in a Scanning Electron Microscope (SEM).
FIG. 3 shows an example of an ultrasonically sheared MoS2Cyclic Voltammetry (CV) curve analysis of the material.
FIG. 4 shows MoS in comparative example2Cyclic Voltammetry (CV) curve analysis of the material.
FIG. 5 shows an example of an ultrasonically sheared MoS2Analysis graph of constant current charge and discharge (GCD) curve of material.
FIG. 6 shows MoS in comparative example2Analysis graph of constant current charge and discharge (GCD) curve of material.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Examples
12 g of MoS2Adding 1ml of activating agent and 1200ml of deionized water into a vessel for fusion, and then fully stirring; after uniformly stirring, putting the vessel into an ultrasonic machine for fixing and slicing treatment, wherein the ultrasonic power is 60W, the temperature is set to be 20 ℃, and the rotating speed of a high-speed shearing machine is set to be 7000 revolutions; taking out six clean small test tubes after the slicing treatment is finished, pouring the solution into the clean small test tubes, and centrifuging the solution for four times, wherein specifically, the rotating speed is set to 3000 revolutions when the solution is placed into a centrifuge for the first time, and the time is set to 30 minutes; after completion, six test tubes filled with the solution were taken out, and the tube was taken outPouring out the upper layer solution to leave solid substances on the wall of the test tube; adding new deionized water, and centrifuging for the second time to the fourth time, wherein the running speed is set to 10000 revolutions and the time is set to 10 minutes during the second time to the fourth time of centrifugation; after the centrifugation is finished, pouring the topmost layer of clear liquid, and pricking a plurality of small holes on the test tube cover to retain the MoS on the wall of the test tube2Putting the mixture into a refrigerator for freeze-drying treatment, wherein the freeze-drying treatment time is set to be twenty-four hours; for the lyophilized MoS2Vacuumizing to obtain powdered MoS2And mixing the powdered MoS2Putting the mixture into a refrigerator, and obtaining the final MoS after the freezing is finished2Powder; taking the MoS2Adding 3 g of powder, 0.375 g of acetylene black and 0.375 g of polyvinylidene fluoride into 11.565 g of N-methyl pyrrolidone (NMP) solution for size mixing, putting the size mixed slurry into an ultrasonic machine for ultrasonic treatment for 20 minutes, and stirring the size uniformly after the ultrasonic treatment; and uniformly printing the slurry on carbon paper by screen printing, putting the carbon paper into a dryer for drying, wherein the drying set temperature is 100 ℃, the drying time is two hours, and the electrode can be prepared after the drying is finished.
Comparative example
Taking MoS manufactured by traditional method2Adding 3 g of powder, 0.375 g of acetylene black and 0.375 g of polyvinylidene fluoride into 11.565 g of N-methyl pyrrolidone (NMP) solution for size mixing, putting the size mixed slurry into an ultrasonic machine for ultrasonic treatment for 20 minutes, and stirring the size uniformly after the ultrasonic treatment; and uniformly printing the slurry on carbon paper by screen printing, putting the carbon paper into a dryer for drying, wherein the drying set temperature is 100 ℃, the drying time is two hours, and the electrode can be prepared after the drying is finished.
The invention can be seen from the analysis of fig. 1 and 2 that MoS is cut by ultrasonic wave2And MoS before ultrasonic cutting2Compared with the mutually separated laminated structure, the laminated parts are mutually stacked and the surface is loose. This shows that the ultrasonic-assisted mechanical shearing can effectively realize the separation of the layer-by-layer structure. It can be seen that the structure between the layers is broken.
The analysis of FIG. 3 and FIG. 4 shows thatThree-electrode MoS after ultrasonic cutting2The CV curve of (a) is relatively smooth. At 1mVs-1It can be seen that the graph appears as a rectangle, illustrating the MoS at low scan rates2The electrode exhibits good reversibility and capacitance characteristics. As the scan rate increases, the rectangle gradually deviates.
By the analysis of FIGS. 5 and 6, three-electrode MoS after cutting with ultrasound2GCD curve of (1), at 0.1mA cm-2The charging and discharging time is longest and can reach about 620s, and is delayed by 100s compared with that before cutting.
In summary, the ultrasonically sheared MoS in the examples2The electrode, as analyzed from fig. 3, showed a rectangular image at low speed scanning, indicating good reversibility. At high speed, the image deviates from a rectangle, which shows that the performance is poor, so the image is not suitable for being used as an electrode material under large current and is suitable for being used as an electrode material under small current, and the analysis of figure 5 shows that the voltage and the time are linear characteristics, the charging curve and the discharging curve are basically symmetrical, the image shows good reversibility, and the image is basically in triangular distribution. The discharge time can be prolonged after ultrasonic shearing, and the modification is obvious.
Therefore, the molybdenum sulfide two-dimensional material is subjected to ultrasonic shearing to manufacture an electrode material with more excellent performance, so that the defects of low surface area, poor charge and discharge performance and poor cycle performance of the existing molybdenum sulfide are overcome, and the performance of the molybdenum sulfide supercapacitor electrode is further remarkably improved.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (9)
1. A preparation method of a molybdenum sulfide supercapacitor electrode is characterized by comprising the following steps: the method comprises the following steps:
s1: mixing MoS2Adding an activating agent and deionized water into a vessel for fusion, and then fully stirring;
s2: after uniformly stirring, putting the vessel into an ultrasonic machine for fixing and slicing;
s3: taking out six clean small test tubes after the slicing treatment is finished, pouring the solution into the clean small test tubes, and carrying out four times of centrifugal operation on the solution;
s4: after the centrifugation in S3 is completed, the top layer of clear liquid is poured out, and a test tube is covered by a plurality of small holes, so that MoS remained on the wall of the test tube2Putting the mixture into a refrigerator for freeze-drying treatment;
s5: for the lyophilized MoS2Vacuumizing to obtain powdered MoS2And mixing the powdered MoS2Putting the mixture into a refrigerator, and obtaining the final MoS after the freezing is finished2Powder;
s6: mixing slurry;
s7: putting the mixed slurry into an ultrasonic machine for ultrasonic treatment for 20 minutes, and stirring the slurry uniformly after the ultrasonic treatment is finished;
s8: and (3) uniformly printing the slurry in the S7 on carbon paper by screen printing, putting the carbon paper into a dryer for drying, and preparing the electrode after drying.
2. The method for preparing the molybdenum sulfide supercapacitor electrode according to claim 1, wherein the method comprises the following steps: in step S2, the ultrasonic power is 60W, the temperature is set to 20 degrees celsius, and the rotation speed of the high-speed shearing machine is set to 7000 revolutions.
3. The method for preparing the molybdenum sulfide supercapacitor electrode according to claim 2, wherein the method comprises the following steps: the specific steps of performing four centrifugation operations on the solution in step S3 are as follows: when the centrifuge is put into the centrifuge for the first time, the rotating speed is set to 3000 revolutions, and the time is set to 30 minutes; after the completion, taking out six test tubes filled with the solution, pouring out the upper layer solution, and leaving solid substances on the walls of the test tubes; adding new deionized water, and performing second-time to fourth-time centrifugation, wherein the operation speed is set to 10000 revolutions and the time is set to 10 minutes in the second-time to fourth-time centrifugation.
4. The method for preparing the molybdenum sulfide supercapacitor electrode according to claim 3, wherein the method comprises the following steps: the time for the freeze-drying process in said step S4 was set to twenty-four hours.
5. The method for preparing the molybdenum sulfide supercapacitor electrode according to claim 1, wherein the method comprises the following steps: the size mixing process in the step S6 is to mix MoS2Adding the powder, acetylene black and polyvinylidene fluoride (PVDF) into an N-methylpyrrolidone (NMP) solution; and wherein MoS2The mass ratio of the powder to the acetylene black to the polyvinylidene fluoride (PVDF) is 7-10:1-3: 1-3.
6. The method for preparing the molybdenum sulfide supercapacitor electrode according to claim 5, wherein the method comprises the following steps: in the step S7, the stirring method is to stir on the stirrer for half an hour at a low speed and for one and a half hours at a high speed.
7. The method for preparing the molybdenum sulfide supercapacitor electrode according to claim 6, wherein the method comprises the following steps: the temperature set when the dryer dries in the step S8 is 90-120 ℃.
8. The method for preparing the molybdenum sulfide supercapacitor electrode according to claim 7, wherein the method comprises the following steps: the drying time of the dryer in the step S8 is two hours.
9. A molybdenum sulfide supercapacitor electrode is characterized in that: an electrode made by the method of making a molybdenum sulfide supercapacitor electrode according to any one of claims 1 to 8.
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Cited By (2)
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| CN113415831A (en) * | 2021-05-08 | 2021-09-21 | 湖南大学 | A kind of Ni (OH)2Preparation method of/graphene composite material and preparation method of supercapacitor |
| CN116216780A (en) * | 2023-03-01 | 2023-06-06 | 淮北师范大学 | Broken shell-shaped MoS 2 Nanosphere material and preparation method and application thereof |
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| 张向华: ""超薄MS2(M=Mo,W)纳米片的制备与性能研究"", 《中国博士学位论文全文数据库 工程科技I辑》 * |
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| CN113415831B (en) * | 2021-05-08 | 2023-02-28 | 湖南大学 | Ni (OH) 2 Preparation method of/graphene composite material and preparation method of supercapacitor |
| CN116216780A (en) * | 2023-03-01 | 2023-06-06 | 淮北师范大学 | Broken shell-shaped MoS 2 Nanosphere material and preparation method and application thereof |
| CN116216780B (en) * | 2023-03-01 | 2024-04-26 | 淮北师范大学 | Broken shell-shaped MoS2Nanosphere material and preparation method and application thereof |
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