CN105271136B - A kind of ultrathin nanometer hollow ball MoSe2Preparation method - Google Patents
A kind of ultrathin nanometer hollow ball MoSe2Preparation method Download PDFInfo
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- CN105271136B CN105271136B CN201510714145.2A CN201510714145A CN105271136B CN 105271136 B CN105271136 B CN 105271136B CN 201510714145 A CN201510714145 A CN 201510714145A CN 105271136 B CN105271136 B CN 105271136B
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- 238000000034 method Methods 0.000 title abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 18
- BUGBHKTXTAQXES-UHFFFAOYSA-N Selenium Chemical compound [Se] BUGBHKTXTAQXES-UHFFFAOYSA-N 0.000 claims abstract description 14
- 235000018660 ammonium molybdate Nutrition 0.000 claims abstract description 13
- APUPEJJSWDHEBO-UHFFFAOYSA-P ammonium molybdate Chemical compound [NH4+].[NH4+].[O-][Mo]([O-])(=O)=O APUPEJJSWDHEBO-UHFFFAOYSA-P 0.000 claims abstract description 12
- 238000002360 preparation method Methods 0.000 claims abstract description 12
- 239000008367 deionised water Substances 0.000 claims abstract description 11
- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 11
- IKDUDTNKRLTJSI-UHFFFAOYSA-N hydrazine monohydrate Substances O.NN IKDUDTNKRLTJSI-UHFFFAOYSA-N 0.000 claims abstract description 11
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 9
- 238000001027 hydrothermal synthesis Methods 0.000 claims abstract description 7
- 229910001868 water Inorganic materials 0.000 claims abstract description 7
- NWZSZGALRFJKBT-KNIFDHDWSA-N (2s)-2,6-diaminohexanoic acid;(2s)-2-hydroxybutanedioic acid Chemical compound OC(=O)[C@@H](O)CC(O)=O.NCCCC[C@H](N)C(O)=O NWZSZGALRFJKBT-KNIFDHDWSA-N 0.000 claims abstract description 6
- 239000011609 ammonium molybdate Substances 0.000 claims abstract description 6
- 229940010552 ammonium molybdate Drugs 0.000 claims abstract description 6
- 238000013019 agitation Methods 0.000 claims description 16
- 229910016001 MoSe Inorganic materials 0.000 claims description 10
- -1 polytetrafluoroethylene Polymers 0.000 claims description 7
- 238000003756 stirring Methods 0.000 claims description 7
- 239000003643 water by type Substances 0.000 claims description 7
- 239000003638 chemical reducing agent Substances 0.000 claims description 6
- 238000001035 drying Methods 0.000 claims description 6
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 6
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 6
- 239000010687 lubricating oil Substances 0.000 claims description 5
- 239000000654 additive Substances 0.000 claims description 4
- 230000000996 additive effect Effects 0.000 claims description 4
- MEFBJEMVZONFCJ-UHFFFAOYSA-N molybdate Chemical compound [O-][Mo]([O-])(=O)=O MEFBJEMVZONFCJ-UHFFFAOYSA-N 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 2
- 238000011534 incubation Methods 0.000 claims description 2
- 230000035484 reaction time Effects 0.000 claims description 2
- 239000000463 material Substances 0.000 abstract description 6
- 239000000843 powder Substances 0.000 abstract description 5
- 238000006243 chemical reaction Methods 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 abstract description 3
- 239000002994 raw material Substances 0.000 abstract description 3
- 238000001291 vacuum drying Methods 0.000 abstract description 2
- 239000000047 product Substances 0.000 description 20
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 18
- XLYOFNOQVPJJNP-ZSJDYOACSA-N heavy water Substances [2H]O[2H] XLYOFNOQVPJJNP-ZSJDYOACSA-N 0.000 description 8
- 229910001220 stainless steel Inorganic materials 0.000 description 7
- 239000010935 stainless steel Substances 0.000 description 7
- 229910019934 (NH4)2MoO4 Inorganic materials 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 6
- 230000004044 response Effects 0.000 description 6
- 239000002199 base oil Substances 0.000 description 5
- 229910052711 selenium Inorganic materials 0.000 description 5
- 239000011669 selenium Substances 0.000 description 5
- 150000003346 selenoethers Chemical class 0.000 description 4
- 229910003424 Na2SeO3 Inorganic materials 0.000 description 3
- 241000209094 Oryza Species 0.000 description 3
- 235000007164 Oryza sativa Nutrition 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000002077 nanosphere Substances 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- 235000009566 rice Nutrition 0.000 description 3
- 239000011781 sodium selenite Substances 0.000 description 3
- 238000002441 X-ray diffraction Methods 0.000 description 2
- 238000005229 chemical vapour deposition Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000000314 lubricant Substances 0.000 description 2
- 239000011684 sodium molybdate Substances 0.000 description 2
- TVXXNOYZHKPKGW-UHFFFAOYSA-N sodium molybdate (anhydrous) Chemical compound [Na+].[Na+].[O-][Mo]([O-])(=O)=O TVXXNOYZHKPKGW-UHFFFAOYSA-N 0.000 description 2
- 229910052723 transition metal Inorganic materials 0.000 description 2
- LZZYPRNAOMGNLH-UHFFFAOYSA-M Cetrimonium bromide Chemical class [Br-].CCCCCCCCCCCCCCCC[N+](C)(C)C LZZYPRNAOMGNLH-UHFFFAOYSA-M 0.000 description 1
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 229910015667 MoO4 Inorganic materials 0.000 description 1
- 229910004619 Na2MoO4 Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005669 field effect Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000002086 nanomaterial Substances 0.000 description 1
- 229910052758 niobium Inorganic materials 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 238000007146 photocatalysis Methods 0.000 description 1
- 230000001699 photocatalysis Effects 0.000 description 1
- 230000005622 photoelectricity Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 230000001603 reducing effect Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 235000015393 sodium molybdate Nutrition 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000003746 solid phase reaction Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 210000001258 synovial membrane Anatomy 0.000 description 1
- 229910052715 tantalum Inorganic materials 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical compound FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
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- Lubricants (AREA)
- Manufacturing Of Micro-Capsules (AREA)
Abstract
The invention belongs to field of nanometer material technology, and in particular to a kind of ultrathin nanometer hollow ball MoSe2The preparation method of material.(1) ammonium molybdate, selenium powder, hydrazine hydrate are added to the water obtained solution, regulation pH is alkalescence, and solution is well mixed, standby；(2) solution is moved into reactor, sealed, after 180 DEG C~210 DEG C hydro-thermal reaction 24h~48h, room temperature is cooled to, deionized water wash products are used, then cleaned repeatedly with absolute ethyl alcohol, black powder is obtained after vacuum drying, structure is the 40nm of diameter 30 hollow ball, and thickness is 3 5nm.The raw material of the inventive method is easy to get, and preparation is simple, and reaction condition is gentle.Obtained MoSe2Size uniformity, it is evenly distributed, and crystallinity is good.
Description
Technical field
The invention belongs to field of nanometer material technology, and in particular to a kind of ultrathin nanometer hollow ball MoSe2The preparation method of material.
Background technology
Magnesium-yttrium-transition metal sulphur, selenides MX2(M=Mo, W, Nb, Ta；X=S, Se etc.), due to its unique physical chemistry
Property and novel structure, get more and more people's extensive concerning and further investigate, and be used as solid because of its excellent frictional behaviour
Lubricant enjoys the concern of people always, in recent years, and the research to such nano material is gradually risen, however, with to nanometer
Development and go deep into that selenides is studied, it is found that nanometer selenides and its composite have more preferable frictional behaviour, and this kind of material
Material have physical property with a greater variety, such as metallicity, superconductivity, magnetic, semiconductor property, the discovery of these excellent properties with
Research causes nanometer selenides to be provided with wider purposes, such as can be used for photoelectricity, catalysis, superconduction field.
MoSe2It is a kind of typical transition metal selenides, in recent years, due to its unique performance, is widely used in urging
Change, photo-luminescent devices, lithium ion battery, lubricant, therefore the field such as field-effect transistor, prepares pattern, size and structure
Controllable nanometer MoSe2Just seem especially important, its preparation method mainly has hydro-thermal or solvent-thermal method, chemical vapor deposition
(CVD), solid phase reaction, mechanical stripping, liquid phase stripping etc..
Hollow nano-sphere is due to its unique and charming structure, in battery electrode, photocatalysis, super capacitor, bio-sensing, gas
The research in the fields such as quick sensing is noticeable.However, on ultra-thin MoSe2The preparation of nano-hollow ball and its add as lubricating oil
Plus the rare report of application of agent, therefore, development one kind simply and effectively prepare MoSe2The method of ultrathin nanometer hollow ball is very
It is important.
The content of the invention
It is an object of the invention to provide a kind of ultrathin nanometer hollow ball MoSe2Preparation method, pass through the step of hydro-thermal method one
Synthesize pattern good, size uniformity, the ultrathin nanometer hollow ball MoSe being evenly distributed2。
Above-mentioned purpose is achieved by the following technical solution：Using ammonium molybdate, selenium powder and hydrazine hydrate as raw material, pass through hydro-thermal
Ultrathin nanometer hollow ball MoSe is directly made in method2, comprise the following steps that：
(1) molybdate is dissolved in deionized water, it is alkalescence that pH is adjusted under magnetic agitation, selenium powder is added, after stirring
Hydrazine hydrate is added as reducing agent, magnetic agitation to being uniformly dispersed,
Wherein, molybdate is ammonium molybdate, and the mol ratio of ammonium molybdate and selenium powder is 1.1~1.2:2, the hydrazine hydrate of addition is 8
~15mL；
(2) mixed system obtained in step (1) is transferred in the hydrothermal reaction kettle of inner liner polytetrafluoroethylene, incubation water heating
Reaction, hydrothermal temperature is 180 DEG C~210 DEG C, and the hydro-thermal reaction time is 24h~48h；
(3) question response temperature in the kettle is naturally cooled to after room temperature, collects black product, and with deionized water and absolute ethyl alcohol
Product is washed, 70 DEG C in a vacuum furnace, 12 hours drying after produce MoSe2Ultrathin nanometer hollow ball.
Present invention also offers a kind of ultrathin nanometer hollow ball MoSe by above-mentioned preparation2It is used as answering for lube oil additive
With：Stratiform ultrathin nanometer hollow ball MoSe2It is added in lubricating oil, the base oil of a part can be adsorbed inside initial stage, with
Oil can be oozed out with racking for ball afterwards, and Relative sliding effect can be produced between rupture stratiform spherical shell, and antifriction profit is formed on surface
Synovial membrane, its mechanism is the synergistic results of multiple action.
The raw material of the inventive method is easy to get, and preparation is simple, and reaction condition is gentle, obtained MoSe2Size
It is homogeneous, be evenly distributed, and crystallinity is good, a diameter of 30-40nm of hollow ball product, and wall thickness size is 3-5nm.
Brief description of the drawings
Fig. 1 is X-ray diffraction (XRD) figure of the product of embodiment 1；
Fig. 2 is transmission electron microscope (TEM) picture of the product of embodiment 1.
Fig. 3 is transmission electron microscope (TEM) picture of the product of comparative example 1.
Fig. 4 is transmission electron microscope (TEM) picture of the product of comparative example 2.
Embodiment
Embodiment 1
Weigh 0.587g ammonium molybdates (NH4)2MoO4·2H2O is added in 60mL deionized waters, and magnetic agitation extremely dissolves, after
It is added dropwise to 5mL concentration and is 0.5M NaOH solution, then weigh 0.361g selenium powders and adds in above-mentioned solution, magnetic agitation to selenium powder point
Dissipate uniform rear addition 8mL hydrazine hydrates (N2H4·H2O) as reducing agent, after stirring, the mixed liquor is transferred to 100mL liners
In polytetrafluoroethylene (PTFE) stainless steel cauldron, in hydro-thermal 48h at 200 DEG C, question response temperature in the kettle is naturally cooled to after room temperature, is collected
Product, and product is washed with deionized water and absolute ethyl alcohol, 70 DEG C in a vacuum furnace, produced after drying in 12 hours ultra-thin
Nano-hollow ball MoSe2。
Accompanying drawing 1 is X-ray diffraction (XRD) figure of the present embodiment product after 200 DEG C of hydro-thermal process 48h, is produced as seen from the figure
Thing is the preferable MoSe of crystallinity2, and in the absence of other impurities phase.
Accompanying drawing 2 is transmission electron microscope (TEM) picture of product in the present embodiment step (1), as seen from the figure prepared MoSe2
In hollow ball, and hollow ball shell only has 3~5 layers.
Embodiment 2
Weigh 1.275g ammonium molybdates (NH4)2MoO4·2H2O is added in 60mL deionized waters, and magnetic agitation extremely dissolves, after
It is added dropwise to 5mL concentration and is 0.5M NaOH solution, then weigh 0.789g selenium powders and add above-mentioned solution, magnetic agitation is scattered to selenium powder
10mL hydrazine hydrates (N is added after uniform2H4·H2O) as reducing agent, after stirring, the mixed liquor is transferred to 100mL liners and gathered
In tetrafluoroethene stainless steel cauldron, in hydro-thermal 48h at 180 DEG C, question response temperature in the kettle is naturally cooled to after room temperature, collects production
Thing, and product is washed with deionized water and absolute ethyl alcohol, 70 DEG C in a vacuum furnace, produce ultra-thin receive after drying in 12 hours
Rice hollow ball MoSe2。
Embodiment 3
Weigh 1.923g ammonium molybdates (NH4)2MoO4·2H2O is added in 60mL deionized waters, and magnetic agitation extremely dissolves, after
5mL concentration is added dropwise and is 0.5M NaOH solution, then weighs 1.183g selenium powders and adds above-mentioned solution, magnetic agitation is scattered equal to selenium powder
10mL hydrazine hydrates (N is added after even2H4·H2O) as reducing agent, after stirring, the mixed liquor is transferred to 100mL liners poly- four
In PVF stainless steel cauldron, in hydro-thermal 36h at 200 DEG C, question response temperature in the kettle is naturally cooled to after room temperature, collects production
Thing, and product is washed with deionized water and absolute ethyl alcohol, 70 DEG C in a vacuum furnace, produce ultra-thin receive after drying in 12 hours
Rice hollow ball MoSe2。
Embodiment 4
Weigh 2.499g ammonium molybdates (NH4)2MoO4·2H2O is added in 60mL deionized waters, and magnetic agitation extremely dissolves, after
5mL concentration is added dropwise and is 0.5M NaOH solution, then weighs 1.538g selenium powders and adds above-mentioned solution, magnetic agitation is scattered equal to selenium powder
12mL hydrazine hydrates (N is added after even2H4·H2O) as reducing agent, after stirring, the mixed liquor is transferred to 100mL liners poly- four
In PVF stainless steel cauldron, in hydro-thermal 24h at 210 DEG C, question response temperature in the kettle is naturally cooled to after room temperature, collects production
Thing, and product is washed with deionized water and absolute ethyl alcohol, 70 DEG C in a vacuum furnace, produce ultra-thin receive after drying in 12 hours
Rice hollow ball MoSe2。
Embodiment 5
By the 0.587g ammonium molybdates (NH in embodiment 14)2MoO4·2H2O replaces with 0.610g sodium molybdate Na2MoO4·
2H2O, remaining step is same as Example 1, and final product is nano flower-like MoSe2。
By the MoSe prepared by the two methods in embodiment 1 and embodiment 52It is added in base oil 100SN, wherein
MoSe2Addition be 1wt.%, after ultrasonic disperse is uniform, using UMT-2 frictional testing machines, institute is investigated with ball-disk pattern
The MoSe of addition2Influence to base oil frictional behaviour；Disk used is 45# steel, a diameter of 30mm in experiment；Ball is that 440C is stainless
Steel, a diameter of 10mm, hardness 62HRC；Load 20N, rotating speed is 300r/min, and the time is 30min.
Table 1 is shown adds MoSe prepared by 1wt.% distinct methods in base oil2It is used as the polishing scratch after additive
The comparison of width (WSW), friction factor (μ)：
Table 1
As seen from Table 1, as the ultrathin nanometer hollow ball MoSe prepared with hydro-thermal method2During as additive, in this implementation
Under the experiment condition of example, base oil shows more preferable frictional behaviour, i.e., it has obvious friction reducing effect, improves lubricating oil
Abrasion-resistance.
Comparative example 1
Weigh 0.587g ammonium molybdates (NH4)2MoO4·2H2O is added in 60mL deionized waters, and magnetic agitation extremely dissolves, after
It is added dropwise to 5mL concentration and is 0.5M NaOH solution, then weighs 0.79g Na2SeO3Add in above-mentioned solution, magnetic agitation is extremely divided
After dissipating uniformly, the mixed liquor is transferred in 100mL inner liner polytetrafluoroethylene stainless steel cauldrons, in hydro-thermal 48h at 200 DEG C, treated
Reactor temperature is naturally cooled to after room temperature, collects product, and product is washed with deionized water and absolute ethyl alcohol,
70 DEG C in vacuum drying oven, dry within 12 hours.Accompanying drawing 3 is transmission electron microscope (TEM) picture of product in this comparative example 1, as seen from the figure institute
The MoSe of preparation2In medicine ball, hollow nano-sphere is not formed.
Comparative example 2
Weigh 0.587g ammonium molybdates (NH4)2MoO4·2H2O is added in 60mL deionized waters, and magnetic agitation extremely dissolves, after
It is added dropwise to 5mL concentration and is 0.5M NaOH solution, then weighs 0.79g Na2SeO3Add in above-mentioned solution, magnetic agitation is extremely
Na2SeO30.4g cetyl trimethylammonium bromides (CTAB) are added after being uniformly dispersed, after stirring, the mixed liquor is transferred to
In 100mL inner liner polytetrafluoroethylene stainless steel cauldrons, in hydro-thermal 48h at 200 DEG C, question response temperature in the kettle naturally cools to room
Wen Hou, collects product, and product is washed with deionized water and absolute ethyl alcohol, 70 DEG C in a vacuum furnace, dries within 12 hours.
Accompanying drawing 4 is transmission electron microscope (TEM) picture of product in this comparative example 2, as seen from the figure prepared MoSe2In flower-shaped, without shape
Into hollow nano-sphere.
Claims (2)
1. a kind of ultrathin nanometer hollow ball MoSe2Preparation method, it is characterised in that：The preparation method is concretely comprised the following steps,
（1）Molybdate is dissolved in deionized water, it is alkalescence that pH is adjusted under magnetic agitation, adds selenium powder, is stirring evenly and then adding into
Hydrazine hydrate as reducing agent, magnetic agitation to being uniformly dispersed,
Described molybdate is ammonium molybdate,
Wherein, the mol ratio of ammonium molybdate and selenium powder is 1.1~1.2:2,
The addition of described hydrazine hydrate is that 8~15mL hydrazine hydrates are added in 60mL deionized waters；
（2）By step（1）In obtained mixed system be transferred in the hydrothermal reaction kettle of inner liner polytetrafluoroethylene, incubation water heating is anti-
Should,
Hydrothermal temperature is 180 DEG C~210 DEG C, and the reaction time is 24h~48h；
（3）Treat step（2）Described reactor temperature is naturally cooled to after room temperature, collects black product, and use deionized water
Product is washed with absolute ethyl alcohol, 70 DEG C in a vacuum furnace, 12 hours drying after produce MoSe2Ultrathin nanometer hollow ball.
2. ultrathin nanometer hollow ball MoSe made from a kind of preparation method as claimed in claim 12Application, it is characterised in that：
Described application is, ultrathin nanometer hollow ball MoSe2It is used as lube oil additive.
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| CN107376948B (en) * | 2017-08-17 | 2019-06-11 | 哈尔滨工业大学 | A kind of preparation method of two dimension selenizing molybdenum functional material water electrolysis hydrogen production catalyst |
| CN107539964B (en) * | 2017-09-30 | 2019-11-26 | 江苏理工学院 | A kind of two selenizing molybdenum powder body material of hexagonal flake and preparation method thereof |
| CN108373141B (en) * | 2018-05-29 | 2021-05-18 | 中国海洋大学 | Preparation method of hollow molybdenum selenide sulfide nanospheres |
| CN109411721B (en) * | 2018-10-10 | 2021-07-30 | 陕西科技大学 | Preparation method of flaky molybdenum diselenide/carbon fiber cloth composite material |
| CN109402662B (en) * | 2018-12-14 | 2020-07-07 | 哈尔滨工业大学 | Preparation method of molybdenum selenide two-dimensional layered titanium carbide composite material |
| CN109970034A (en) * | 2019-04-29 | 2019-07-05 | 四川大学锦城学院 | A kind of ultrathin nanometer hollow sphere MoSe2The preparation method of material |
| CN111718774B (en) * | 2020-05-22 | 2022-08-12 | 武汉市时代金鸡石油制品有限公司 | Biodegradable stable lubricating oil and preparation method thereof |
| CN112663076A (en) * | 2020-12-24 | 2021-04-16 | 华南理工大学 | Iron-doped molybdenum diselenide nano material with hollow structure, preparation method thereof and application of iron-doped molybdenum diselenide nano material in electrocatalytic nitrogen reduction |
| CN114105107B (en) * | 2021-12-31 | 2023-11-07 | 西安工业大学 | Highly monodisperse MoSe with different morphologies 2 Method for preparing nano material |
| CN114291797B (en) * | 2021-12-31 | 2023-05-26 | 杭州电子科技大学 | Ultrathin three-dimensional MoSe 2 Nanosphere and preparation and application thereof |
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