CN110577242A - Regular-hexagon nano-sheet tungsten disulfide electrode material and preparation method and application thereof - Google Patents
Regular-hexagon nano-sheet tungsten disulfide electrode material and preparation method and application thereof Download PDFInfo
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Abstract
The invention provides a regular hexagon nano-sheet tungsten disulfide electrode material, a preparation method and application thereof, wherein the preparation method comprises the following steps: adding tungsten hexachloride into an ethylene glycol solution, and stirring until the tungsten hexachloride is completely dissolved to obtain a solution A; adding thioacetamide and oleic acid into the solution A, and stirring to obtain a mixed solution B; carrying out solvothermal reaction on the mixed solution B, and cooling after the reaction is finished; washing and drying the solvothermal reaction product to obtain black powder; and fifthly, calcining the black powder for 2-6 hours at 900-1200 ℃ under the protection of argon atmosphere to obtain the regular-hexagon nano flaky tungsten disulfide. The prepared regular hexagonal nano flaky tungsten disulfide is used as a sodium ion battery cathode material, and the regular nano flaky shape can effectively shorten the migration path of ions in the charge and discharge process, so that the electrochemical performance of the sodium ion battery is improved.
Description
Technical Field
The invention relates to preparation of a tungsten disulfide nano material, in particular to a regular hexagon nano flaky tungsten disulfide electrode material and a preparation method and application thereof.
Background
The two-dimensional layered nano-material mainly comprises graphene, a two-dimensional transition metal sulfur compound and the like. The two-dimensional transition metal sulfide is mainly connected between layers through Van der Waals force, and the acting force is relatively weak, so that the layers are easy to peel off to form a nano lamellar structure. The two-dimensional transition metal sulfide is of a layered structure and exists in a form of X-M-X, and chalcogen atoms are separated by transition metal atoms to form a sandwich structure. By virtue of the special structure, a large amount of transition metal sulfides appear in the fields of energy, environmental protection, mechanical friction, biomedicine and the like. The transition metal tungsten sulfide nano material is currently held by researchers, and particularly is mainly a nano sheet of molybdenum disulfide and tungsten disulfide. Molybdenum disulfide and tungsten disulfide were first widely used as lubricants with their extremely high stability and strong tribological properties, and are often found in large mechanical devices. And through the preparation and research of the tungsten disulfide and molybdenum disulfide nanosheets, the final research conclusion shows that the addition of the tungsten disulfide and molybdenum disulfide nanosheets can greatly improve the abrasion resistance and other tribological properties. Meanwhile, the photoelectric composite material is also commonly found in electronic devices and optical equipment due to the special photoelectric property of the photoelectric composite material. Furthermore, tungsten disulfide also relies on an excellent crystalline structure, making it useful in the catalytic industry in large quantities.
WS reported at present2The preparation method of the nano material mainly comprises a liquid phase stripping method, a hydrothermal reaction method, a vapor deposition method, a solid phase reaction method and the like. Among the methods, the liquid phase stripping method is the simplest to operate, the preparation process is environment-friendly, and meanwhile, the WS with uniform appearance can be prepared in large batch2Nano material for laboratory achievementThe production in the market provides feasibility. However, WS synthesized by researchers at present2The shape of the nano-sheet is mostly irregular nano-sheet, which is not beneficial to the improvement of the electrochemical performance.
Disclosure of Invention
aiming at the problems in the prior art, the invention provides a regular hexagon nano flaky tungsten disulfide electrode material, a preparation method and application thereof, and the electrochemical performance of the tungsten disulfide electrode material is improved.
The invention is realized by the following technical scheme:
A preparation method of a regular hexagon nano-sheet tungsten disulfide electrode material comprises the following steps:
Adding tungsten hexachloride into an ethylene glycol solution, and stirring until the tungsten hexachloride is completely dissolved to obtain a solution A;
Adding thioacetamide and oleic acid into the solution A, and stirring to obtain a mixed solution B;
Carrying out solvothermal reaction on the mixed solution B, and cooling after the reaction is finished;
Washing and drying the solvothermal reaction product to obtain black powder;
And fifthly, calcining the black powder for 2-6 hours at 900-1200 ℃ under the protection of argon atmosphere to obtain the regular-hexagon nano flaky tungsten disulfide.
Preferably, in the first step, the concentration of the tungsten hexachloride is 0.01-0.1 mol/L.
Preferably, in the first step, the stirring speed is 500-1000 r/min, and the stirring time is 5-15 min.
Preferably, in the second step, the molar ratio of the tungsten hexachloride to the thioacetamide is (10-7) to (1-3).
Preferably, in the second step, the volume ratio of the ethylene glycol to the oleic acid is 10: 1.
Preferably, in the third step, the temperature of the solvothermal reaction is 200-240 ℃, and the reaction time is 4-48 h.
preferably, in the fourth step, the drying is carried out for 8-12 h by freeze drying under the conditions that the temperature is-40 to-70 ℃ and the vacuum degree is 10-60 Pa.
Preferably, in the fifth step, the heating rate is 10-30 ℃/min.
According to the regular hexagon nano flaky tungsten disulfide electrode material obtained by the preparation method, tungsten disulfide is in a regular hexagon nano flaky structure.
The regular hexagon nano-flake tungsten disulfide electrode material is applied to a battery as a negative electrode material.
Compared with the prior art, the invention has the following beneficial technical effects:
The invention provides a method for preparing a regular hexagon nano flaky tungsten disulfide electrode material. The method is characterized in that tungsten hexachloride is used as a tungsten source and a thioacetamide sulfur source, a solvothermal synthesis process is utilized, the shape and size are controlled by a surfactant, and a high-temperature calcination heat treatment process is combined to successfully prepare the regular-hexagon nano flaky tungsten disulfide. The nano-sheet is used as a cathode material of a sodium ion battery, and the regular nano-sheet shape can effectively shorten the migration path of ions in the charging and discharging process, so that the electrochemical performance of the nano-sheet is improved. The preparation method is simple to operate and easy to control, and can be used for quickly preparing the high-purity regular hexagonal nano flaky tungsten disulfide electrode material in a short time.
When the regular hexagonal nano flaky tungsten disulfide prepared by the invention is used as a sodium ion battery cathode material, the regular nano flaky morphology can effectively shorten the migration path of ions in the charging and discharging process and improve the electrochemical performance.
Drawings
FIG. 1 is an X-ray diffraction (XRD) pattern of the regular hexagonal nano-flake tungsten disulfide nano-material prepared in example 3;
Fig. 2 is a Scanning Electron Microscope (SEM) photograph of the regular hexagonal nanosheets of tungsten disulfide nanomaterial (c) and (d) and the irregular tungsten disulfide nanosheets (a) and (b) prepared in example 3.
Fig. 3 is a cycle performance diagram of the regular hexagonal nanosheet-shaped tungsten disulfide nanomaterial and the irregular tungsten disulfide nanosheet in example 3.
Detailed Description
the present invention will now be described in further detail with reference to specific examples, which are intended to be illustrative, but not limiting, of the invention.
A method for preparing a regular hexagon nano sheet tungsten disulfide electrode material comprises the following steps:
Step one, adding tungsten hexachloride into 30-60 mL of glycol solution, and magnetically stirring until the tungsten hexachloride is completely dissolved to form a yellow clear solution A, wherein the stirring speed is 500-1000 r/min, and the stirring time is 5-15 min. The concentration of the solution is controlled to be 0.01-0.1 mol/L.
Step two, adding thioacetamide into the clear solution A, and controlling n (WCl)6):n(CH3CSNH2) Adding 3-6 mL of oleic acid into (10-7) - (1-3), controlling the volume ratio of ethylene glycol to oleic acid to be 10:1, and stirring for 0.5-3 h to form a uniform mixed solution.
And step three, transferring the solution to a 100mL polytetrafluoroethylene reaction kettle for homogeneous reaction, wherein the reaction temperature is 200-240 ℃, the reaction time is 4-48 h, and naturally cooling to room temperature after the reaction is finished.
Opening the reaction kettle, taking out a product, washing the product by using absolute ethyl alcohol and deionized water in sequence, performing centrifugal separation, repeatedly washing for 4-6 times, and drying the product for 8-12 hours in a freeze dryer with the temperature of-40 to-70 ℃ and the vacuum degree of 10-60 Pa to obtain black powder.
And fifthly, putting the black powder into a magnetic boat, calcining at 900-1200 ℃ under the protection of argon atmosphere in a high-temperature tube furnace, heating at a rate of 10-30 ℃/min, and preserving heat for 2-6 hours to obtain the regular-hexagon nano-sheet tungsten disulfide.
Example 1
The method comprises the following steps: adding tungsten hexachloride into 60mL of glycol solution, and magnetically stirring until the tungsten hexachloride is completely dissolved to form a yellow clear solution A, wherein the stirring speed is 500r/min, and the stirring time is 15 min. The concentration of the solution is controlled to be 0.01 mol/L.
Step two: thioacetamide was added to solution A, and n (WCl) was controlled6):n(CH3CSNH2) 6mL of oleic acid was added thereto, and the volume ratio of ethylene glycol to oleic acid was controlled at 10:1, and the mixture was stirred for 1.5 hours to form a uniform mixed solution.
Step three: and transferring the solution to a 100mL polytetrafluoroethylene reaction kettle for homogeneous reaction, wherein the reaction temperature is 200 ℃, the reaction time is 48 hours, and naturally cooling to room temperature after the reaction is finished.
Step four: and opening the reaction kettle, taking out a product, sequentially washing by using absolute ethyl alcohol and deionized water, carrying out centrifugal separation, repeatedly washing for 6 times, and drying in a freeze dryer at the temperature of-70 ℃ and the vacuum degree of 10Pa for 8 hours to obtain black powder.
step five: and (3) putting the black powder into a magnetic boat, calcining at 900 ℃ under the protection of argon atmosphere in a high-temperature tube furnace, heating at a rate of 15 ℃/min, and preserving heat for 6 hours to obtain the regular-hexagon nano flaky tungsten disulfide.
Example 2
The method comprises the following steps: adding tungsten hexachloride into 45mL of glycol solution, and magnetically stirring until the tungsten hexachloride is completely dissolved to form a yellow clear solution A, wherein the stirring speed is 700r/min, and the stirring time is 15 min. The concentration of the solution is controlled to be 0.05 mol/L.
step two: thioacetamide was added to solution A, and n (WCl) was controlled6):n(CH3CSNH2) 4.5mL of oleic acid was added thereto at a volume ratio of ethylene glycol to oleic acid of 10:1, and the mixture was stirred for 2 hours to form a uniform mixed solution.
Step three: and transferring the solution to a 100mL polytetrafluoroethylene reaction kettle for homogeneous reaction, wherein the reaction temperature is 220 ℃, the reaction time is 4 hours, and naturally cooling to room temperature after the reaction is finished.
Step four: and opening the reaction kettle, taking out a product, sequentially washing by using absolute ethyl alcohol and deionized water, carrying out centrifugal separation, repeatedly washing for 5 times, and drying in a freeze dryer at the temperature of-50 ℃ and the vacuum degree of 25Pa for 10 hours to obtain black powder.
Step five: and (3) putting the black powder into a magnetic boat, calcining at 1050 ℃ under the protection of argon atmosphere in a high-temperature tube furnace, heating at the rate of 30 ℃/min, and preserving heat for 3 hours to obtain the regular-hexagon nano flaky tungsten disulfide.
Example 3
The method comprises the following steps: adding tungsten hexachloride into 60mL of glycol solution, and magnetically stirring until the tungsten hexachloride is completely dissolved to form a yellow clear solution A, wherein the stirring speed is 700r/min, and the stirring time is 10 min. The concentration of the solution is controlled to be 0.1 mol/L.
step two: thioacetamide was added to solution A, and n (WCl) was controlled6):n(CH3CSNH2) 6mL of oleic acid was added thereto at a volume ratio of ethylene glycol to oleic acid of 10:1, and the mixture was stirred for 1.5 hours to form a uniform mixed solution.
step three: and transferring the solution to a 100mL polytetrafluoroethylene reaction kettle for homogeneous reaction, wherein the reaction temperature is 200 ℃, the reaction time is 24 hours, and naturally cooling to room temperature after the reaction is finished.
Step four: and opening the reaction kettle, taking out a product, sequentially washing by using absolute ethyl alcohol and deionized water, carrying out centrifugal separation, repeatedly washing for 6 times, and drying in a freeze dryer at the temperature of-50 ℃ and the vacuum degree of 40Pa for 12 hours to obtain black powder.
Step five: and (3) putting the black powder into a magnetic boat, calcining at 1100 ℃ under the protection of argon atmosphere in a high-temperature tube furnace, heating at a rate of 10 ℃/min, and preserving heat for 2h to obtain the regular-hexagon nano flaky tungsten disulfide.
Example 4
The method comprises the following steps: adding tungsten hexachloride into 50mL of glycol solution, and magnetically stirring until the tungsten hexachloride is completely dissolved to form a yellow clear solution A, wherein the stirring speed is 1000r/min, and the stirring time is 5 min. The concentration of the solution is controlled to be 0.075 mol/L.
Step two: thioacetamide was added to solution A, and n (WCl) was controlled6):n(CH3CSNH2) Then 5mL of oleic acid was added thereto at a volume ratio of ethylene glycol to oleic acid of 10:1, and the mixture was stirred for 3 hours to form a homogeneous mixed solution.
Step three: and transferring the solution to a 100mL polytetrafluoroethylene reaction kettle for homogeneous reaction, wherein the reaction temperature is 240 ℃, the reaction time is 10 hours, and naturally cooling to room temperature after the reaction is finished.
Step four: and opening the reaction kettle, taking out a product, sequentially washing by using absolute ethyl alcohol and deionized water, carrying out centrifugal separation, repeatedly washing for 5 times, and drying in a freeze dryer at the temperature of-40 ℃ and the vacuum degree of 60Pa for 12 hours to obtain black powder.
step five: and (3) putting the black powder into a magnetic boat, calcining at 1200 ℃ under the protection of argon atmosphere in a high-temperature tube furnace, heating at the rate of 20 ℃/min, and preserving heat for 3h to obtain the regular-hexagon nano flaky tungsten disulfide.
Example 5
The method comprises the following steps: adding tungsten hexachloride into 55mL of glycol solution, and magnetically stirring until the tungsten hexachloride is completely dissolved to form a yellow clear solution A, wherein the stirring speed is 900r/min, and the stirring time is 10 min. The concentration of the solution is controlled to be 0.08 mol/L.
Step two: thioacetamide was added to solution A, and n (WCl) was controlled6):n(CH3CSNH2) Then 5.5mL of oleic acid was added thereto at a volume ratio of ethylene glycol to oleic acid of 10:1, and the mixture was stirred for 2 hours to form a uniform mixed solution.
Step three: and transferring the solution to a 100mL polytetrafluoroethylene reaction kettle for homogeneous reaction, wherein the reaction temperature is 210 ℃, the reaction time is 36h, and naturally cooling to room temperature after the reaction is finished.
Step four: and opening the reaction kettle, taking out a product, sequentially washing by using absolute ethyl alcohol and deionized water, carrying out centrifugal separation, repeatedly washing for 6 times, and drying in a freeze dryer at the temperature of-40 ℃ and the vacuum degree of 25Pa for 9 hours to obtain black powder.
Step five: and (3) putting the black powder into a magnetic boat, calcining at 900 ℃ under the protection of argon atmosphere in a high-temperature tube furnace, heating at a rate of 15 ℃/min, and preserving heat for 6 hours to obtain the regular-hexagon nano flaky tungsten disulfide.
the sample was analyzed by a Japanese science D/max2000 PCX-ray diffractometer, and FIG. 1 is an X-ray diffraction (XRD) pattern of the sample prepared in example 3, and it was found that the sample was associated with WS of hexagonal system having JCPDS numbers 08-02372The structures are consistent, which indicates that the product prepared by the method is pure phase. The sample is observed by a Field Emission Scanning Electron Microscope (FESEM), and fig. 2 shows Scanning Electron Microscope (SEM) photographs of the irregular tungsten disulfide nanosheet and the sample prepared in example 3, so that the product prepared in example 3 has good dispersibility, uniform size distribution and regular hexagon nanosheet shape. FIG. 3 is a chart of the cycle performance of irregular nanosheets and regular hexagonal tungsten disulfide nanosheets, and it can be seen that the cycle performance is regular hexagonalThe edge-shaped nanosheet has better cycling stability and better electrochemical performance.
The invention successfully synthesizes the regular hexagon nano-sheet tungsten disulfide by using a hydrothermal method and a high-temperature calcination method for the first time. The nano-sheet is used as a cathode material of a sodium ion battery, and the more regular nano-sheet shape can effectively shorten the migration path of ions in the charging and discharging process, so that the electrochemical performance of the nano-sheet is improved.
In a word, the invention provides a method for preparing a regular hexagon nano flaky tungsten disulfide electrode material. The method is characterized in that tungsten hexachloride is used as a tungsten source and a thioacetamide sulfur source, a solvothermal synthesis process is utilized, the shape and size are controlled by a surfactant, and a high-temperature calcination heat treatment process is combined, so that the regular hexagonal nano flaky tungsten disulfide is successfully prepared, has better circulation stability compared with the existing irregular tungsten disulfide, and has better electrochemical performance. The preparation method is simple to operate, easy to control process parameters and high in repeatability. The reaction does not need large expensive equipment, the energy consumption and the production cost are greatly saved, the product dispersibility is good, and the high-purity regular hexagon nano flaky tungsten disulfide electrode material can be quickly prepared in a short time.
Claims (10)
1. A preparation method of a regular hexagon nano-sheet tungsten disulfide electrode material is characterized by comprising the following steps:
Adding tungsten hexachloride into an ethylene glycol solution, and stirring until the tungsten hexachloride is completely dissolved to obtain a solution A;
adding thioacetamide and oleic acid into the solution A, and stirring to obtain a mixed solution B;
Carrying out solvothermal reaction on the mixed solution B, and cooling after the reaction is finished;
Washing and drying the solvothermal reaction product to obtain black powder;
and fifthly, calcining the black powder for 2-6 hours at 900-1200 ℃ under the protection of argon atmosphere to obtain the regular-hexagon nano flaky tungsten disulfide.
2. the preparation method of the regular-hexagon nano-sheet tungsten disulfide electrode material as claimed in claim 1, wherein in the first step, the concentration of tungsten hexachloride is 0.01-0.1 mol/L.
3. The preparation method of the regular-hexagon nano-sheet tungsten disulfide electrode material as claimed in claim 1, wherein in the first step, the stirring speed is 500-1000 r/min, and the stirring time is 5-15 min.
4. The method for preparing the orthohexagonal nanosheet-shaped tungsten disulfide electrode material as claimed in claim 1, wherein in the second step, the molar ratio of tungsten hexachloride to thioacetamide is (10-7): 1-3.
5. The method for preparing the regular-hexagon nano-flake tungsten disulfide electrode material as claimed in claim 1, wherein in the second step, the volume ratio of ethylene glycol to oleic acid is 10: 1.
6. The preparation method of the regular-hexagon nano-sheet tungsten disulfide electrode material as claimed in claim 1, wherein in the third step, the temperature of the solvothermal reaction is 200-240 ℃, and the reaction time is 4-48 h.
7. The preparation method of the regular hexagon nano-sheet tungsten disulfide electrode material as claimed in claim 1, wherein in the fourth step, the drying is carried out for 8-12 h under the conditions that the temperature is-40 to-70 ℃ and the vacuum degree is 10-60 Pa.
8. the preparation method of the regular-hexagon nano-sheet tungsten disulfide electrode material as claimed in claim 1, wherein in the fifth step, the temperature rise rate is 10-30 ℃/min.
9. The regular-hexagon nano-flake tungsten disulfide electrode material obtained by the preparation method of any one of claims 1 to 8, wherein tungsten disulfide is in a regular-hexagon nano-flake structure.
10. The use of the hexagonal nano-platelet tungsten disulfide electrode material of claim 9 as a negative electrode material in a battery.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112919523A (en) * | 2021-03-16 | 2021-06-08 | 厦门稀土材料研究所 | Preparation method of hexagonal flaky rare earth cerium oxide |
| CN113044883A (en) * | 2021-03-15 | 2021-06-29 | 陕西科技大学 | Preparation method of three-dimensional embroidered spherical tungsten disulfide electrode material |
-
2019
- 2019-10-22 CN CN201911007698.9A patent/CN110577242A/en active Pending
Non-Patent Citations (3)
| Title |
|---|
| MANI GOVINDASAMY ET AL.: ""A screen-printed electrode modified with tungsten disulfide nanosheets for nanomolar detection of the arsenic drug roxarsone"", 《MICROCHIM ACTA》 * |
| S.V. PRABHAKAR VATTIKUTI ET AL.: ""Selective hydrothermally synthesis of hexagonal WS2 platelets and their photocatalytic performance under visible light irradiation"", 《SUPERLATTICES AND MICROSTRUCTURES》 * |
| 曹丽云等: "《钨酸盐纳米材料的湿化学合成及光催化性能》", 31 December 2017, 西北工业大学出版社 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113044883A (en) * | 2021-03-15 | 2021-06-29 | 陕西科技大学 | Preparation method of three-dimensional embroidered spherical tungsten disulfide electrode material |
| CN113044883B (en) * | 2021-03-15 | 2022-10-14 | 陕西科技大学 | Preparation method of three-dimensional embroidered spherical tungsten disulfide electrode material |
| CN112919523A (en) * | 2021-03-16 | 2021-06-08 | 厦门稀土材料研究所 | Preparation method of hexagonal flaky rare earth cerium oxide |
| CN112919523B (en) * | 2021-03-16 | 2022-01-28 | 厦门稀土材料研究所 | Preparation method of hexagonal flaky rare earth cerium oxide |
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