CN109741965A - A kind of preparation method of molybdenum disulfide/biomass carbon combination electrode material - Google Patents
A kind of preparation method of molybdenum disulfide/biomass carbon combination electrode material Download PDFInfo
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- CN109741965A CN109741965A CN201910127032.0A CN201910127032A CN109741965A CN 109741965 A CN109741965 A CN 109741965A CN 201910127032 A CN201910127032 A CN 201910127032A CN 109741965 A CN109741965 A CN 109741965A
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Abstract
The present invention provides a kind of molybdenum disulfide/biomass carbon combination electrode material preparation methods, it is the carbon source using corncob as biomass carbon material, it by washing, dries, be ground into a powder and be placed in tube furnace, high temperature cabonization obtains biomass carbon material under nitrogen atmosphere；Presoma is made by hydro-thermal method ammonium molybdate and thiocarbamide and biomass carbon again, is then activated with potassium hydroxide, molybdenum disulfide/biomass carbon combination electrode material is made.Electro-chemical test shows that molybdenum disulfide/biomass carbon combination electrode material has high specific capacitance, excellent high rate performance and excellent electrochemical stability, has a good application prospect as electrode material for super capacitor.
Description
Technical field
The present invention relates to a kind of preparation of super capacitor material more particularly to a kind of molybdenum disulfide/biomass carbon are compound
The preparation of electrode material belongs to technical field of composite materials and supercapacitor technologies field.
Background technique
With the continuous exploitation of the non-renewable energy such as coal, petroleum, global energy crisis is got worse, exploitation wind energy, geothermal energy,
The new energies such as solar energy have become a hot topic of research.Supercapacitor as a kind of novel energy storage device, with other batteries and
Fuel cell, can compared to that can provide higher power density and have higher energy density than traditional electrostatic condenser
Fast charging and discharging has the operating temperature of extremely long cycle life and wider range, and environmentally protective, therefore, developing low-cost and
The research hotspot that powerful supercapacitor becomes.Electrode material is the research emphasis of supercapacitor.Generally, super capacitor
Device can be divided into double layer capacitor and fake capacitance capacitor according to its energy storage mechnism.Wherein double layer capacitor is by material
Absorption and desorption to charge store charge, such as active carbon, electrically conductive composite.Fake capacitance capacitor is then by quickly may be used
Inverse faraday's reaction stores charge, such as metal, metal oxide etc..
People increasingly pay close attention to transition metal dichalcogenide, molybdenum disulfide (MoS2) it is two-dimentional two sulfur family chemical combination of transition metal
The line-up of delegates of object, because of MoS2Crystal is by being clipped between two sulphur layers and being stacked by weak Van der Waals interaction
Mo layers of metal composition, its structure is similar to graphite.MoS2It is very big that special structure and chemical property causes researcher
Interest and be widely used in many fields, including solid lubricant, catalysis, dye-sensitized solar cells, lithium-ion electric
Pond, etc..
The carbon material of biomass is environmentally protective because drawing materials extensively, low cost, is the electrode material reason as supercapacitor
Want to select.With MoS2Similar, the energy storage mechnism of carbon material also belongs to electric double layer capacitance.Similar energy storage mechnism keeps two kinds of materials multiple
Performance significantly improves after conjunction.With pure MoS2It compares, the cyclical stability of material can be enhanced in the addition of carbon material.With pure carbon phase
Than the addition of sulfide increases its electric conductivity.
Summary of the invention
It is an object of the invention to provide a kind of preparation methods of molybdenum disulfide/carbon composite；The present invention is simultaneously to above-mentioned system
Standby molybdenum disulfide/carbon composite is studied as the concrete application performance of electrode material for super capacitor.
(1) molybdenum disulfide/carbon composite electrode material preparation
The preparation method of molybdenum sulfide/carbon composite electrode material of the present invention, comprises the following steps that:
(1) preparation of biomass carbon material: corncob being washed with deionized water, is dried, is ground into a powder and is placed in tube furnace,
Under nitrogen atmosphere, 600 ~ 800 DEG C are warming up to, 2 ~ 4h of isothermal holding；It is cooled to room temperature, obtains biomass carbon material.The heating speed
Degree is 5 ~ 6 DEG C of min-1；The cooling is first with 5 ~ 6 DEG C of min-1Speed be cooled to 200 ~ 300 DEG C, then cooled to room temperature.
(2) ammonium molybdate, thiocarbamide and biomass carbon are well-dispersed in deionized water, ultrasonic mixing is uniform；It again will mixing
Solution is transferred in reaction under high pressure axe, the hydro-thermal reaction 10 ~ for 24 hours at 180 ~ 200 DEG C；Cooled to room temperature；Obtained black
Precipitating is first washed 2 ~ 3 times with distillation, then with ethanol washing 2 ~ 3 times, and dry 10 ~ 12h, is made molybdenum disulfide/carbon at 50 ~ 70 DEG C
Presoma.Wherein the mass ratio of ammonium molybdate and thiocarbamide is 1:6 ~ 1:7；Ammonium molybdate and the mass ratio of biomass are 6:1 ~ 15:1.
(3) deionized water is dispersed by molybdenum disulfide/carbon matrix precursor, potassium hydroxide, magnetic agitation mixing 10 ~ for 24 hours；It uses again
Mixture is washed till neutrality by deionized water, at 50 ~ 70 DEG C dry 10 ~ 12h to get molybdenum disulfide/biomass carbon composite material,
Labeled as MoS2@C.Wherein molybdenum disulfide/carbon matrix precursor, potassium hydroxide, deionized water mass ratio be 1:3:20 ~ 1:5:20.
Fig. 1 is molybdenum disulfide/biomass carbon composite material scanning electron microscope (SEM) photograph (SEM).From figure 1 it appears that two sulphur
The nano flower for changing molybdenum is uniformly grown on carbon plate surface, is increased its surface area, is provided more adsorption sites for electronics, thus
Improve specific capacitance.
Fig. 2 is molybdenum disulfide/biomass carbon composite material projection electron microscope (TEM).From fig. 2 it can be seen that two sulphur
The flower-like structure for changing molybdenum it is transparent as it can be seen that and it is uniform in size, can see the formation of carbon plate from the edge of petal, this and scanning electron microscope
The result of test is consistent, and further illustrates the composite material that molybdenum disulfide and carbon are successfully made.
(2) molybdenum disulfide/biomass carbon composite material performance
Fig. 3 is obtained pure two under molybdenum disulfide/biomass carbon composite material for synthesizing of the present invention and pure carbon and the same terms
Molybdenum sulfide is in 5mV s-1Sweep speed under cyclic voltammetry curve (CV).It can be seen from figure 3, in voltage -0.4V ~ 0.5V
When MoS2@C, pure MoS2CV curve with carbon is typical double layer capacitor all close to rectangle.It is obvious that MoS2@C's is compound
The rectangle closed area of material is significantly greater than pure MoS2With the closed area of carbon, this illustrates that the capacitor of composite material is apparently higher than two
Kind pure material.
Fig. 4 be molybdenum disulfide/biomass carbon composite material for synthesizing of the present invention with it is obtained pure under pure carbon and the same terms
Molybdenum disulfide current density be 1Ag-1When constant current charge-discharge curve (GCD).Figure 4, it is seen that composite material
Discharge time it is longer than two kinds of pure materials, calculated specific capacitance is 333.5F g respectively-1, 82F g-1, 2F g-1, calculate number
MoS is demonstrated according to more exact2With the compound supercapacitor capacitor that can be obviously improved material of carbon material, this is surveyed with CV
The result of examination is consistent.
Fig. 5 be molybdenum disulfide/biomass carbon composite material for synthesizing of the present invention with it is obtained pure under pure carbon and the same terms
Molybdenum disulfide voltage be 0.1V when AC impedance figure (EIS).It can be seen from the figure that in the resistance of high frequency region composite material
Anti- figure slope is greater than the slope of pure carbon and pure molybdenum disulfide, this illustrates that composite material has smaller charge transfer resistance；?
Low frequency range, the arc radius of compound is small with two kinds of pure materials, illustrates that compound has smaller diffusion resistance, this two o'clock more has
Power is shown, and molybdenum disulfide and the compound electrode material of carbon have better electric conductivity.
Fig. 6 is after symmetrical two electrode is made in molybdenum disulfide/biomass carbon composite material that the present invention synthesizes, in voltage model
GCD when enclosing for 0 ~ 1.6V, under different current densities.As can be seen from Figure 6 in being continuously increased with current density, charge and discharge
The shape of electric curve is held essentially constant, and illustrates that composite material has preferable electrochemical stability, is in maximum current density
20Ag-1When, specific capacity still can reach 17Fg-1。
In conclusion the present invention uses corncob as the carbon source of biomass carbon material, pass through the hydro-thermal method of simple low cost
Presoma is made with ammonium molybdate and thiocarbamide and biomass carbon, then is activated with potassium hydroxide, the electricity of supercapacitor is made
Pole material.Electro-chemical test shows MoS2The composite material of@C has high specific capacitance, excellent high rate performance and excellent electrification
Learn stability.
Detailed description of the invention
Fig. 1 is MoS2The scanning electron microscope (SEM) photograph (SEM) of@C combination electrode material microwave method.
Fig. 2 is MoS2The projection electron microscope (TEM) of@C combination electrode material.
Fig. 3 is MoS2@C electrode material and pure carbon and pure MoS2Cyclic voltammetry curve (CV).
Fig. 4 is MoS2@C electrode material and pure carbon and pure MoS2Charging and discharging curve (GCD).
Fig. 5 is MoS2@C electrode material and pure carbon and pure MoS2AC impedance figure (EIS).
Fig. 6 is MoS2The charging and discharging curve of difference current density when two electrode system of@C combination electrode material.
Specific embodiment
Below by specific embodiment to MoS of the present invention2The preparation of@C combination electrode material and performance are described further.
Embodiment 1
(1) it after taking out corncob removing, is washed with deionized water, dries, then be ground into a powder and be placed in tube furnace, lead to nitrogen
30min；With 5 DEG C of min-1Speed be warming up to 750 DEG C, keep the temperature 3h；200 DEG C are cooled in 120min again, then is naturally cooled to
Room temperature is to get carbon material；
(2) the ratio column that ammonium molybdate, thiocarbamide, deionized water and biomass carbon are 10:64:100:1 in mass ratio are mixed, ultrasound
20min is uniformly mixed；Mixed solution is transferred in reaction under high pressure axe again, hydro-thermal reaction 16h, naturally cools at 200 DEG C
Room temperature；Obtained black precipitate is poured out, and is washed 3 times with distillation, then is washed 2 times with ethyl alcohol, and 12h is finally dried in 60 DEG C of baking ovens,
Molybdenum disulfide/carbon matrix precursor is made；
(3) presoma is mixed with potassium hydroxide, deionized water by the mass ratio of 1:4:20；By mixed solution in magnetic stirring apparatus
Upper stirring 12h, then mixture is washed till neutrality with deionized water, it is subsequently placed in 60 DEG C of baking ovens and dries to get molybdenum disulfide/life
Substance carbon hybrid supercapacitor electrode material.
Through detecting, specific capacitance of the molybdenum disulfide/carbon hybrid supercapacitor electrode material under 1 A/g current density
Reach 333 Fg-1。
Embodiment 2
(1) it after taking out corncob removing, is washed with deionized water, dries, then be ground into a powder and be placed in tube furnace, lead to nitrogen
30min；With 5 DEG C of min-1Speed be warming up to 600 DEG C, keep the temperature 3h；200 DEG C are cooled in 100min again, then is naturally cooled to
Room temperature is to get carbon material；
(2) the ratio column that ammonium molybdate, thiocarbamide, deionized water and biomass carbon are 6:38.4:60:1 in mass ratio are mixed, ultrasound
20min is uniformly mixed；Mixed solution is transferred in reaction under high pressure axe again, hydro-thermal reaction 16h, naturally cools at 200 DEG C
Room temperature；Obtained black precipitate is poured out, and is washed 3 times with distillation, then is washed 2 times with ethyl alcohol, and 12h is finally dried in 60 DEG C of baking ovens,
Molybdenum disulfide/carbon matrix precursor is made；
(3) presoma is mixed with potassium hydroxide, deionized water by the mass ratio of 1:4:20；By mixed solution in magnetic stirring apparatus
Upper stirring 12h, then mixture is washed till neutrality with deionized water, it is subsequently placed in 60 DEG C of baking ovens and dries to get molybdenum disulfide/life
Substance carbon hybrid supercapacitor electrode material.
Through detecting, specific capacitance of the molybdenum disulfide/carbon hybrid supercapacitor electrode material under 1 A/g current density
Reach 120 Fg-1。
Claims (7)
1. a kind of molybdenum disulfide/biomass carbon combination electrode material preparation method, comprises the following steps that:
(1) preparation of biomass carbon material: corncob being washed with deionized water, is dried, is ground into a powder and is placed in tube furnace,
Under nitrogen atmosphere, 600 ~ 800 DEG C are warming up to, 2 ~ 4h of isothermal holding；It is cooled to room temperature, obtains biomass carbon material；
(2) ammonium molybdate, thiocarbamide and biomass carbon are well-dispersed in deionized water, ultrasonic mixing is uniform；Again by mixed solution
It is transferred in reaction under high pressure axe, the hydro-thermal reaction 10 ~ for 24 hours at 180 ~ 200 DEG C；Cooled to room temperature；Obtained black precipitate
It is washed, it is dry, molybdenum disulfide/carbon matrix precursor is made；
(3) deionized water is dispersed by molybdenum disulfide/carbon matrix precursor, potassium hydroxide, magnetic agitation mixing 10 ~ for 24 hours；Spend again from
Mixture is washed till neutrality by sub- water, is dried to get molybdenum disulfide/biomass carbon composite material.
2. molybdenum disulfide as described in claim 1/biomass carbon combination electrode material preparation method, it is characterised in that: step
(1) in, the heating rate is 5 ~ 6 DEG C of min-1。
3. molybdenum disulfide as described in claim 1/biomass carbon combination electrode material preparation method, it is characterised in that: step
(1) in, the cooling is first with 5 ~ 6 DEG C of min-1Speed be cooled to 200 ~ 300 DEG C, then cooled to room temperature.
4. molybdenum disulfide as described in claim 1/biomass carbon combination electrode material preparation method, it is characterised in that: step
(2) in, the mass ratio of ammonium molybdate and thiocarbamide is 1:6 ~ 1:7；The mass ratio of ammonium molybdate and biomass carbon is 6:1 ~ 15:1.
5. molybdenum disulfide as described in claim 1/biomass carbon combination electrode material preparation method, it is characterised in that: step
(2) in, washing is first use distillation washing 2 ~ 3 times, then with ethanol washing 2 ~ 3 times.
6. molybdenum disulfide as described in claim 1/biomass carbon combination electrode material preparation method, it is characterised in that: step
(3) in, molybdenum disulfide/carbon matrix precursor, potassium hydroxide, deionized water mass ratio be 1:3:20 ~ 1:5:20.
7. molybdenum disulfide as described in claim 1/biomass carbon combination electrode material preparation method, it is characterised in that: each step
In rapid, drying is dry 10 ~ 12h at 50 ~ 80 DEG C.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110284146A (en) * | 2019-06-21 | 2019-09-27 | 青岛科技大学 | Load selenium in situ adulterates molybdenum disulfide/transition metal boride nano material preparation and application |
| CN110416527A (en) * | 2019-08-16 | 2019-11-05 | 济南大学 | A kind of method that plant Zea mays stalk prepares combination electrode material as template growth |
| CN110875150A (en) * | 2019-11-27 | 2020-03-10 | 长安大学 | Si/MoS2Preparation method of electrode material |
| CN111646494A (en) * | 2020-05-21 | 2020-09-11 | 江苏理工学院 | Nitrogen and sulfur element doped lanthanum oxide/amaranth-based carbon nanocomposite and preparation method and application thereof |
| CN113096970A (en) * | 2021-03-03 | 2021-07-09 | 广东第二师范学院 | Preparation method of molybdenum diselenide/shaddock peel carbon composite material |
| CN114743807A (en) * | 2022-05-19 | 2022-07-12 | 江苏大学 | Inside and outside raw MoO2Preparation method of/three-dimensional carbon composite material |
| CN115340090A (en) * | 2022-09-06 | 2022-11-15 | 上海劲孚实业有限公司 | Oily wastewater treatment material and preparation method thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106910884A (en) * | 2017-05-12 | 2017-06-30 | 中国科学院过程工程研究所 | A kind of molybdenum sulfide/carbon composite and its preparation method and application |
| US20170218407A1 (en) * | 2008-11-06 | 2017-08-03 | Kiverdi, Inc. | Biological and Chemical Process Utilizing Chemoautotrophic Microorganisms for the Chemosynthetic Fixation of Carbon Dioxide and/or Other Inorganic Carbon Sources into Organic Compounds and the Generation of Additional Useful Products |
| CN107298442A (en) * | 2017-07-15 | 2017-10-27 | 中国海洋大学 | A kind of biomass carbon/molybdenum disulfide nano-composite material and preparation method thereof |
| CN108091837A (en) * | 2017-11-24 | 2018-05-29 | 北京欧美中科学技术研究院 | A kind of molybdenum disulfide/carbon composite and its preparation method and application |
| CN109133049A (en) * | 2018-08-03 | 2019-01-04 | 太原工业学院 | A kind of preparation method and application with multi-pore channel, the biomass-based active carbon of level pore structure |
| CN109273679A (en) * | 2018-08-29 | 2019-01-25 | 东莞理工学院 | A kind of carbon coating molybdenum sulfide/water hyacinth biomass carbon composite material and preparation method and purposes |
| CN109309225A (en) * | 2018-11-07 | 2019-02-05 | 河南工业大学 | A kind of strain charcoal is the MoS of carbon source2The preparation method of@C combination electrode material |
-
2019
- 2019-02-20 CN CN201910127032.0A patent/CN109741965A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20170218407A1 (en) * | 2008-11-06 | 2017-08-03 | Kiverdi, Inc. | Biological and Chemical Process Utilizing Chemoautotrophic Microorganisms for the Chemosynthetic Fixation of Carbon Dioxide and/or Other Inorganic Carbon Sources into Organic Compounds and the Generation of Additional Useful Products |
| CN106910884A (en) * | 2017-05-12 | 2017-06-30 | 中国科学院过程工程研究所 | A kind of molybdenum sulfide/carbon composite and its preparation method and application |
| CN107298442A (en) * | 2017-07-15 | 2017-10-27 | 中国海洋大学 | A kind of biomass carbon/molybdenum disulfide nano-composite material and preparation method thereof |
| CN108091837A (en) * | 2017-11-24 | 2018-05-29 | 北京欧美中科学技术研究院 | A kind of molybdenum disulfide/carbon composite and its preparation method and application |
| CN109133049A (en) * | 2018-08-03 | 2019-01-04 | 太原工业学院 | A kind of preparation method and application with multi-pore channel, the biomass-based active carbon of level pore structure |
| CN109273679A (en) * | 2018-08-29 | 2019-01-25 | 东莞理工学院 | A kind of carbon coating molybdenum sulfide/water hyacinth biomass carbon composite material and preparation method and purposes |
| CN109309225A (en) * | 2018-11-07 | 2019-02-05 | 河南工业大学 | A kind of strain charcoal is the MoS of carbon source2The preparation method of@C combination electrode material |
Non-Patent Citations (2)
| Title |
|---|
| JINZHU WU ETC: "Carbon dot-assisted hydrothermal synthesis of flower-like MoS2 nanospheres constructed by few-layered multiphase MoS2 nanosheets for supercapacitors", 《RSC ADV.》 * |
| SHYAMAL K. DAS ETC: "Self-assembled MoS2–carbon nanostructures: influence of nanostructuring and carbon on lithium battery performance", 《J. MATER. CHEM》 * |
Cited By (9)
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| CN110284146A (en) * | 2019-06-21 | 2019-09-27 | 青岛科技大学 | Load selenium in situ adulterates molybdenum disulfide/transition metal boride nano material preparation and application |
| CN110416527A (en) * | 2019-08-16 | 2019-11-05 | 济南大学 | A kind of method that plant Zea mays stalk prepares combination electrode material as template growth |
| CN110875150A (en) * | 2019-11-27 | 2020-03-10 | 长安大学 | Si/MoS2Preparation method of electrode material |
| CN111646494A (en) * | 2020-05-21 | 2020-09-11 | 江苏理工学院 | Nitrogen and sulfur element doped lanthanum oxide/amaranth-based carbon nanocomposite and preparation method and application thereof |
| CN111646494B (en) * | 2020-05-21 | 2023-07-11 | 江苏理工学院 | Nitrogen and sulfur element doped lanthanum oxide/amaranth-based carbon nanocomposite and preparation method and application thereof |
| CN113096970A (en) * | 2021-03-03 | 2021-07-09 | 广东第二师范学院 | Preparation method of molybdenum diselenide/shaddock peel carbon composite material |
| CN114743807A (en) * | 2022-05-19 | 2022-07-12 | 江苏大学 | Inside and outside raw MoO2Preparation method of/three-dimensional carbon composite material |
| CN114743807B (en) * | 2022-05-19 | 2024-03-19 | 江苏大学 | Internally and externally generated MoO 2 Preparation method of three-dimensional carbon composite material |
| CN115340090A (en) * | 2022-09-06 | 2022-11-15 | 上海劲孚实业有限公司 | Oily wastewater treatment material and preparation method thereof |
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