CN108400022A - A kind of preparation method of manganous silicate/carbon supercapacitor electrode material - Google Patents
A kind of preparation method of manganous silicate/carbon supercapacitor electrode material Download PDFInfo
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 33
- 229910052799 carbon Inorganic materials 0.000 title claims abstract description 27
- 239000007772 electrode material Substances 0.000 title claims abstract description 21
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 title claims abstract description 19
- 238000002360 preparation method Methods 0.000 title claims abstract description 17
- 239000000843 powder Substances 0.000 claims abstract description 19
- 229910021380 Manganese Chloride Inorganic materials 0.000 claims abstract description 14
- 239000011565 manganese chloride Substances 0.000 claims abstract description 14
- 229910052911 sodium silicate Inorganic materials 0.000 claims abstract description 14
- 239000002131 composite material Substances 0.000 claims abstract description 9
- 239000000203 mixture Substances 0.000 claims abstract description 8
- 239000000654 additive Substances 0.000 claims abstract description 7
- 230000000996 additive effect Effects 0.000 claims abstract description 7
- 239000002904 solvent Substances 0.000 claims abstract description 6
- 229910020489 SiO3 Inorganic materials 0.000 claims abstract description 3
- 238000004321 preservation Methods 0.000 claims abstract description 3
- 238000006243 chemical reaction Methods 0.000 claims description 20
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 13
- 239000008367 deionised water Substances 0.000 claims description 13
- 229910021641 deionized water Inorganic materials 0.000 claims description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 13
- DHMQDGOQFOQNFH-UHFFFAOYSA-N Glycine Chemical compound NCC(O)=O DHMQDGOQFOQNFH-UHFFFAOYSA-N 0.000 claims description 12
- 239000000047 product Substances 0.000 claims description 10
- 239000004471 Glycine Substances 0.000 claims description 6
- 150000003233 pyrroles Chemical class 0.000 claims description 6
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims description 5
- 229910052748 manganese Inorganic materials 0.000 claims description 5
- 239000011572 manganese Substances 0.000 claims description 5
- 239000013049 sediment Substances 0.000 claims description 5
- 239000012459 cleaning agent Substances 0.000 claims description 4
- 239000007795 chemical reaction product Substances 0.000 claims description 2
- 229910052710 silicon Inorganic materials 0.000 claims description 2
- 239000010703 silicon Substances 0.000 claims description 2
- 239000003795 chemical substances by application Substances 0.000 claims 1
- 238000004140 cleaning Methods 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 17
- 238000004146 energy storage Methods 0.000 abstract description 7
- 230000007812 deficiency Effects 0.000 abstract description 3
- 238000010923 batch production Methods 0.000 abstract description 2
- 238000003756 stirring Methods 0.000 abstract 1
- 239000003990 capacitor Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 239000000243 solution Substances 0.000 description 5
- 229910001220 stainless steel Inorganic materials 0.000 description 4
- 239000010935 stainless steel Substances 0.000 description 4
- NVJMLVXGMVTTAN-UHFFFAOYSA-N [Mn].[Si](O)(O)(O)O Chemical compound [Mn].[Si](O)(O)(O)O NVJMLVXGMVTTAN-UHFFFAOYSA-N 0.000 description 3
- 239000003792 electrolyte Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000000227 grinding Methods 0.000 description 3
- 229910001416 lithium ion Inorganic materials 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 2
- 239000004809 Teflon Substances 0.000 description 2
- 229920006362 Teflon® Polymers 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- 229940045348 brown mixture Drugs 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- ASTZLJPZXLHCSM-UHFFFAOYSA-N dioxido(oxo)silane;manganese(2+) Chemical compound [Mn+2].[O-][Si]([O-])=O ASTZLJPZXLHCSM-UHFFFAOYSA-N 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000001027 hydrothermal synthesis Methods 0.000 description 2
- 239000006210 lotion Substances 0.000 description 2
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Chemical compound O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 description 2
- 235000012239 silicon dioxide Nutrition 0.000 description 2
- 238000005245 sintering Methods 0.000 description 2
- 238000002791 soaking Methods 0.000 description 2
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 description 1
- GLFNIEUTAYBVOC-UHFFFAOYSA-L Manganese chloride Chemical compound Cl[Mn]Cl GLFNIEUTAYBVOC-UHFFFAOYSA-L 0.000 description 1
- 239000007832 Na2SO4 Substances 0.000 description 1
- 239000004115 Sodium Silicate Substances 0.000 description 1
- 229910003481 amorphous carbon Inorganic materials 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 239000010953 base metal Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002041 carbon nanotube Substances 0.000 description 1
- 229910021393 carbon nanotube Inorganic materials 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 235000019441 ethanol Nutrition 0.000 description 1
- 239000008103 glucose Substances 0.000 description 1
- 229910021389 graphene Inorganic materials 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000036039 immunity Effects 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 229940099607 manganese chloride Drugs 0.000 description 1
- 235000002867 manganese chloride Nutrition 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- SYHGEUNFJIGTRX-UHFFFAOYSA-N methylenedioxypyrovalerone Chemical compound C=1C=C2OCOC2=CC=1C(=O)C(CCC)N1CCCC1 SYHGEUNFJIGTRX-UHFFFAOYSA-N 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
- 239000007773 negative electrode material Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000033116 oxidation-reduction process Effects 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000006479 redox reaction Methods 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 235000019795 sodium metasilicate Nutrition 0.000 description 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
- 229910052938 sodium sulfate Inorganic materials 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- 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
- H01G11/22—Electrodes
- H01G11/30—Electrodes characterised by their material
- H01G11/32—Carbon-based
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Electric Double-Layer Capacitors Or The Like (AREA)
- Silicates, Zeolites, And Molecular Sieves (AREA)
Abstract
The invention belongs to field of new materials more particularly to a kind of preparation methods of manganous silicate/carbon supercapacitor electrode material.The invention is characterized in that：First by MnCl2And Na2SiO3It is dissolved in solvent respectively, then by Na2SiO3Solution is stirred continuously, by MnCl2Na is instilled dropwise2SiO3In solution, mixture is obtained；The mixture prepared stirring is abundant, it is transferred in autoclave, heat preservation was filtered or centrifuged after 5 10 hours, and Red-brown powder is obtained；The Red-brown powder of preparation is put into pyroreaction kettle, carbon source additive is instilled, is taken out after keeping the temperature 35 hours at a temperature of 400 700 DEG C, obtain manganous silicate/carbon composite of black powder.The present invention solves the deficiency of traditional handicraft, easy to operate, at low cost, convenient for batch production；The manganous silicate of preparation/carbon composite energy-storage property is good, resistance to long circulating, has good application prospect.
Description
Technical field
The invention belongs to field of new materials more particularly to a kind of preparation sides of manganous silicate/carbon supercapacitor electrode material
Method.
Background technology
Ultracapacitor service life is long, power density and energy density are high, charge/discharge rates are fast, high temperature performance is good,
Strong interference immunity, volume compact.According to the difference of energy storage principle, it is broadly divided into two classes：One kind is double layer capacitor, another kind of
It is pseudocapacitors.The fake capacitance electrode material that development voltage window is big, electrode specific capacitance is high is to improve ultracapacitor device
The important means of part energy storage.
The physical and chemical performance of silicic acid manganese material is excellent, there is higher specific surface area and big operating voltage range, in its table
There is the active site of a large amount of quickly redox reactions in face.It can use on high-performance super capacitor as fake capacitance electrode material
Expect (Wang H Y, Wang Y Y, Bai X.Manganese silicate drapes as a novel electrode
Material for supercapacitors [J] .Rsc Advances, 2016,6 (107)), it can also be used in lithium ion battery
On (Chinese patent that such as number of patent application is 201710490860.1) and catalyst.But as electrode of super capacitor material
When material, since manganous silicate material conductivity is poor, energy density, high rate performance and the long circulating performance of device entirety are limited.
Silicic acid manganese material is actually a kind of prodigious nano material of application potential, but needs to carry out compound, modification to it or be modified
Its energy-storage property can just be given full play to.In research prepared by super capacitor material design, manganese electrode material and carbon will be contained
Material (such as amorphous carbon, carbon nanotube, graphene) is compound, is optimization pore structure and pore size distribution, reduces ion delivering path,
Improve the common method of electric conductivity.
In terms of being concentrated mainly on base metal oxide to the research application of fake capacitance electrode material at present, by hydro-thermal method,
It is prepared by the means such as sintering process, sol-gal process, oxidation-reduction method.The research and application of these technologies, have fully excavated counterfeit electricity
The ultracapacitor energy storage potentiality of capacity materials, bring significant economic benefit.Application No. is 201710369222.4 China
Patent discloses Co1.29Ni1.71O4Raw powder's production technology obtains Co by one step of hydro-thermal reaction1.29Ni1.71O4Powder, than electricity
Hold and reaches 503F g-1.It is anode that application No. is 200810027780.3 Chinese patents with manganese dioxide, and activated carbon is cathode, two
Valence cation is the Asymmetric Supercapacitor of electrolyte assembling, reaches 26Wh kg than energy-1.Number of patent application is
201610237316.1 Chinese patent has synthesized the amorphous silicic acid of purity 100% with the method for boiling manganese chloride and sodium metasilicate
Manganese (MnSiO3), and after with tube furnace and glucose by 700 DEG C of packet carbon of product, the X ray diffracting spectrum still right and wrong of product
Brilliant manganous silicate.According to paper Wang Y Y, Lun N.Efficient mass-fabrication of amorphous
MnSiO3/C with high stability through a simple water-boiling treatment and its
Li-ion storage performance [J] .New Journal of Chemistry, 2017,41 (11) are this
MnSiO3/ C-material is applied on lithium ion battery negative material, and the electric conductivity of material is improved, and specific capacity can reach 424mAh
g-1.According to paper Wang H Y, Wang Y Y.Manganese silicate drapes as a novel electrode
Material for supercapacitors [J] .Rsc Advances, 2016,6 (107), amorphous silicic acid manganese material are applied
In terms of ultracapacitor, tested with the KOH electrolyte of 1M, material specific capacitance is up to 281F g-1, but 1000 circle retention ratios are only
74.7%, and without carrying out device assembling.The above work, focuses on the pursuit to high specific capacitance, and material comprehensive performance is not good enough, and
Preparation process is complicated, of high cost, is unfavorable for producing in batches.
Invention content
That it is an object of the invention to overcome the deficiencies of the prior art and provide a kind of preparation processes is simple, at low cost, convenient for batch
The preparation method of manganous silicate/carbon supercapacitor electrode material of production is measured, manganous silicate/carbon composite of preparation is for super
Capacitor electrode material, the characteristics such as good, resistance to long circulating with energy-storage property.
The present invention is achieved in the following ways：
A kind of manganous silicate/carbon (MnSiO3/ C) electrode material for super capacitor preparation method, it is characterized in that including following
Implementation steps：
(1) by MnCl2And Na2SiO3It is dissolved in solvent respectively；By Na2SiO3Solution is stirred continuously, by MnCl2It instills dropwise
Na2SiO3In solution, mixture is obtained；MnCl2And Na2SiO3Molar ratio be 2:1-1:2；
(2) mixture prepared in (1) is stirred fully, is transferred in autoclave；Reaction kettle is put into baking oven,
Reaction temperature is 80-200 DEG C；Heat preservation takes out reaction product after 5-10 hours, first uses deionized water, then uses absolute ethyl alcohol as clearly
Lotion is filtered or is centrifuged, and the product in reaction kettle is isolated, and is dried, is ground up, sieved to obtain Red-brown powder；
(3) Red-brown powder prepared by (2) is put into pyroreaction kettle, instills carbon source additive；Reaction kettle is placed
In Muffle furnace, taken out after keeping the temperature 3-5 hours at a temperature of 400-700 DEG C；It first uses deionized water, use absolute ethyl alcohol as clearly again
Lotion is filtered or is centrifuged, and the sediment generated in reaction kettle is isolated, and is dried, is ground up, sieved to obtain black powder
Manganous silicate/carbon composite.
Above-mentioned preparation method, it is characterized in that the solvent in step (1) is at least one of deionized water, absolute ethyl alcohol.
Above-mentioned preparation method, it is characterized in that carbon source additive described in step (3) is pyrroles or glycine, additive amount
For：Product Red-brown powder in 1g steps (2) adds 0.3-1mL pyrroles；Product Red-brown powder in 1g steps (2), adds
Add 0.5-1g glycine.
Beneficial effects of the present invention are：
1. the present invention is on the basis of conventional manganous silicate material conductivity difference, abundant carbon source --- the pyrroles with Nitrogen element
Or glycine carries out co-sintering, the manganous silicate/carbon composite being had excellent performance.
2. the present invention solves the deficiency of traditional handicraft, easy to operate, at low cost, convenient for batch production；The silicic acid of preparation
Manganese/carbon composite energy-storage property is good, resistance to long circulating, has good application prospect.
3. manganous silicate/carbon electrode material of the present invention is used as positive electrode, coordinates activated carbon negative electrode material, use 1M
Na2SO4Aqueous solution does electrolyte, is assembled into asymmetric capacitor device.In 250W kg-1Power density under, energy density is high
Up to 26.2Wh kg-1.Its long circulating is had excellent performance, and still has 85% or more capacitance to retain when 5000 enclose.
Specific implementation mode
Four most preferred embodiments of the present invention are given below：
Embodiment 1：
(1) it is 1 by molar ratio:1 MnCl2And Na2SiO3It is dissolved in deionized water respectively；By Na2SiO3Solution is sufficiently stirred
Dissolving, by MnCl2It instills dropwise, obtains brown mixture.
(2) mixture prepared in (1) is stirred fully, is transferred in the Teflon liner of stainless steel autoclave；
Reaction kettle is tightened, 80 DEG C of baking oven is put into, is taken out after keeping the temperature 3h.First with deionized water is used twice, finally made with absolute ethyl alcohol
It for cleaning agent, is filtered or is centrifuged, isolate the sediment generated in reaction kettle, 12h, grinding, mistake are dried with 105 DEG C of temperature
300 mesh sieve, and obtain Red-brown powder.
(3) the Red-brown powder product 1g obtained in step (2) is put into stainless steel high temperature reaction kettle, instills 0.4mL
Pyrroles tightens reaction kettle lid；Pyroreaction kettle is placed in shaft furnace, is taken out after keeping the temperature 5h at 550 DEG C.It first uses twice
It with deionized water, finally uses absolute ethyl alcohol as cleaning agent, is filtered or centrifuged, isolate the precipitation generated in reaction kettle
Object dries 12h with 105 DEG C of temperature, and grinding crosses 300 mesh sieve, obtains manganous silicate/carbon composite of black powder.
The ultracapacitor device assembled with the electrode material, maximum energy-density reach 16Wh kg-1, maximum power is close
Degree reaches 2000W kg-1, cycle life reaches 8000 times.
Embodiment 2：
It is 1 except solvent is volume ratio in (1):1 deionized water and absolute ethyl alcohol, oven temperature is 160 DEG C in (2), is protected
The warm time is outside 5h, and other steps are same as Example 1.
The ultracapacitor device assembled with the electrode material, maximum energy-density reach 22Wh kg-1, maximum power is close
Degree reaches 5000W kg-1, cycle life reaches 8000 times.
Embodiment 3：
Except oven temperature is 200 DEG C, soaking time 5h in (2), the heating temperature of step (3) is 650 DEG C, soaking time
Outside for 3h, other steps are same as Example 1.
The ultracapacitor device assembled with the electrode material, maximum energy-density reach 26Wh kg-1, maximum power is close
Degree reaches 8000W kg-1, cycle life reaches 8000 times.
Embodiment 4：
(1) it is 1 to take molar ratio:1 MnCl2And Na2SiO3, by MnCl2It is dissolved in absolute ethyl alcohol, Na2SiO3It is dissolved in same body
Long-pending deionized water, by MnCl2Solution instills Na dropwise2SiO3Solution obtains brown mixture.
(2) mixture prepared in (1) is stirred fully, is transferred in the Teflon liner of stainless steel autoclave.
Reaction kettle is tightened, is put into 180 DEG C of baking oven, is taken out after keeping the temperature 3h.First with deionized water is used twice, absolute ethyl alcohol is finally used
It as cleaning agent, is filtered or is centrifuged, isolate the sediment generated in reaction kettle, dried 12h with 105 DEG C of temperature, grind,
300 mesh sieve is crossed, brown powder is obtained.
(3) product in 1g (2) is put into stainless steel high temperature reaction kettle, 1g glycine is added, tightens reaction kettle lid.It will
Reaction kettle is placed in shaft furnace, is taken out after keeping the temperature 5h at 700 DEG C.With deionized water and ethyl alcohol, filters or centrifuge repeatedly, point
The sediment generated in reaction kettle is separated out, dries 12h with 105 DEG C of temperature, grinding crosses 300 mesh sieve, obtains the silicon of black powder
Sour manganese/carbon composite.
The ultracapacitor device assembled with the electrode material, maximum energy-density reach 8Wh kg-1, maximum power density
Reach 2000W kg-1, cycle life reaches 1000 times.
Claims (3)
1. the preparation method of a kind of manganous silicate/carbon supercapacitor electrode material, it is characterized in that including the following steps：
(1) by MnCl2And Na2SiO3It is dissolved in solvent respectively；By Na2SiO3Solution is stirred continuously, by MnCl2Na is instilled dropwise2SiO3
In solution, mixture is obtained；MnCl2And Na2SiO3Molar ratio be 2:1-1:2；
(2) mixture prepared in (1) is stirred fully, is transferred in autoclave；Reaction kettle is put into baking oven, is reacted
Temperature is 80-200 DEG C；Heat preservation takes out reaction product after 5-10 hours, first uses deionized water, uses absolute ethyl alcohol as cleaning again
Agent is filtered or is centrifuged, and the product in reaction kettle is isolated, and is dried, is ground up, sieved to obtain Red-brown powder；
(3) Red-brown powder prepared by (2) is put into pyroreaction kettle, instills carbon source additive；Reaction kettle is placed on horse
Not in stove, taken out after keeping the temperature 3-5 hours at a temperature of 400-700 DEG C；Deionized water is first used, then uses absolute ethyl alcohol as cleaning
Agent is filtered or is centrifuged, and the sediment generated in reaction kettle is isolated, and is dried, is ground up, sieved to obtain the silicon of black powder
Sour manganese/carbon composite.
2. a kind of preparation method of manganous silicate/carbon supercapacitor electrode material according to claim 1, it is characterized in that：
Solvent in step (1) is at least one of deionized water, absolute ethyl alcohol.
3. a kind of preparation method of manganous silicate/carbon supercapacitor electrode material according to claim 1 or 2, feature
It is：Carbon source additive described in step (3) is pyrroles or glycine, and additive amount is：The reddish brown toner of product in 1g steps (2)
0.3-1mL pyrroles is added at end；Product Red-brown powder in 1g steps (2) adds 0.5-1g glycine.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110482560A (en) * | 2019-08-25 | 2019-11-22 | 山东理工大学 | A kind of preparation method of two dimension manganous silicate nanometer sheet |
| CN110683583A (en) * | 2019-10-23 | 2020-01-14 | 山东大学 | Preparation method of manganese copper oxide supercapacitor electrode material |
| CN111849581A (en) * | 2020-08-07 | 2020-10-30 | 辽宁石油化工大学 | Preparation method of low-temperature FCC gasoline dearsenicating agent |
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|---|---|---|---|---|
| CN101901900A (en) * | 2010-07-09 | 2010-12-01 | 南开大学 | Method for preparing carbon-coated phosphate composite material for negative electrode of lithium ion battery |
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| 王月娅: "锂离子电池负极材料硅酸锰的制备及其电化学性能研究", 《中国优秀硕士学位论文全文数据库》 * |
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| CN110482560A (en) * | 2019-08-25 | 2019-11-22 | 山东理工大学 | A kind of preparation method of two dimension manganous silicate nanometer sheet |
| CN110482560B (en) * | 2019-08-25 | 2022-11-08 | 山东理工大学 | Preparation method of two-dimensional manganese silicate nanosheet |
| CN110683583A (en) * | 2019-10-23 | 2020-01-14 | 山东大学 | Preparation method of manganese copper oxide supercapacitor electrode material |
| CN110683583B (en) * | 2019-10-23 | 2020-06-05 | 山东大学 | Preparation method of manganese copper oxide supercapacitor electrode material |
| CN111849581A (en) * | 2020-08-07 | 2020-10-30 | 辽宁石油化工大学 | Preparation method of low-temperature FCC gasoline dearsenicating agent |
| CN111849581B (en) * | 2020-08-07 | 2022-04-22 | 辽宁石油化工大学 | Preparation method of low-temperature FCC gasoline dearsenicating agent |
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Application publication date: 20180814 |