CN107045948A - NaxMnO2Positive electrode, preparation method and applications - Google Patents
NaxMnO2Positive electrode, preparation method and applications Download PDFInfo
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- CN107045948A CN107045948A CN201710230470.0A CN201710230470A CN107045948A CN 107045948 A CN107045948 A CN 107045948A CN 201710230470 A CN201710230470 A CN 201710230470A CN 107045948 A CN107045948 A CN 107045948A
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- 238000002360 preparation method Methods 0.000 title claims abstract description 9
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Inorganic materials O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 claims abstract description 38
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 18
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 18
- 239000004744 fabric Substances 0.000 claims abstract description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 14
- 229910019898 NaxMnO2 Inorganic materials 0.000 claims abstract description 7
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 26
- AMWRITDGCCNYAT-UHFFFAOYSA-L manganese oxide Inorganic materials [Mn].O[Mn]=O.O[Mn]=O AMWRITDGCCNYAT-UHFFFAOYSA-L 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 12
- 238000004070 electrodeposition Methods 0.000 claims description 9
- 238000001027 hydrothermal synthesis Methods 0.000 claims description 6
- 238000002203 pretreatment Methods 0.000 claims description 3
- SZVJSHCCFOBDDC-UHFFFAOYSA-N ferrosoferric oxide Chemical compound O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 abstract description 14
- 229910021607 Silver chloride Inorganic materials 0.000 abstract description 5
- HKZLPVFGJNLROG-UHFFFAOYSA-M silver monochloride Chemical compound [Cl-].[Ag+] HKZLPVFGJNLROG-UHFFFAOYSA-M 0.000 abstract description 5
- 239000011248 coating agent Substances 0.000 abstract 1
- 238000000576 coating method Methods 0.000 abstract 1
- 239000002105 nanoparticle Substances 0.000 abstract 1
- 239000011734 sodium Substances 0.000 description 28
- 239000003990 capacitor Substances 0.000 description 7
- 239000011572 manganese Substances 0.000 description 7
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 6
- 239000003792 electrolyte Substances 0.000 description 6
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 6
- 229910052938 sodium sulfate Inorganic materials 0.000 description 6
- 238000007599 discharging Methods 0.000 description 4
- 239000007772 electrode material Substances 0.000 description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 3
- 239000007832 Na2SO4 Substances 0.000 description 3
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 3
- 238000010306 acid treatment Methods 0.000 description 3
- 239000004411 aluminium Substances 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 229920002301 cellulose acetate Polymers 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 238000002955 isolation Methods 0.000 description 3
- UOGMEBQRZBEZQT-UHFFFAOYSA-L manganese(2+);diacetate Chemical class [Mn+2].CC([O-])=O.CC([O-])=O UOGMEBQRZBEZQT-UHFFFAOYSA-L 0.000 description 3
- 230000008384 membrane barrier Effects 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229910017604 nitric acid Inorganic materials 0.000 description 3
- 239000002985 plastic film Substances 0.000 description 3
- 229920006255 plastic film Polymers 0.000 description 3
- 229910052697 platinum Inorganic materials 0.000 description 3
- 235000011152 sodium sulphate Nutrition 0.000 description 3
- 150000001768 cations Chemical class 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- -1 (Na+And K+) Chemical class 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 230000009194 climbing Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000006258 conductive agent Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000012983 electrochemical energy storage Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-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
- H01G11/46—Metal oxides
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-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 OR LIGHT-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
Abstract
The invention discloses a kind of NaxMnO2Positive electrode, preparation method and applications, its step is：（1）Pass through the Mn to being grown on carbon cloth3O4Nano-particles self assemble into nm wall array carry out hydro-thermal, so as to form the Na of high Na contents0.55MnO2The nm wall array that nanometer sheet is self-assembled into.Na0.55MnO2Nm wall array operating potential window can expand to 0~1.3V（vs. Ag/AgCl）, specific capacitance can reach 366F g‑1；With Na0.55MnO2For positive electrode, the Fe of carbon coating is utilized3O4Nanometer stick array is prepared for the Na of 2.6 V ultra-wide operating potential windows as negative pole0.55MnO2//Fe3O4@C water system Asymmetric Supercapacitors.The ultracapacitor not only has the general character of ultracapacitor：High power density, overlength cycle life, and the operating potential window (2.6V) with ultra-wide, the energy density of superelevation（87 Wh kg‑1）.
Description
Technical field
Patent of the present invention is related to the Na of high Na contentsxMnO2Positive electrode, preparation method and this positive electrode structure of utilization
The method for building the water system Asymmetric Supercapacitor of 2.6V ultra-wide potential windows, belongs to electrochemical energy storage technical field.
Background technology
Ultracapacitor is a kind of new and effective secondary power supply between battery and traditional capacitance, with the circulation longevity
Order length, power density height, safety, advantages of environment protection.Its power density ratio battery will be higher by 10 to 100 times, can release moment
Ultrahigh current is put, therefore is highly suitable for electric vehicle.Such as ultracapacitor can with lithium secondary battery high energy electricity
Pond is used cooperatively as electric vehicle, and super capacitor is used under the operating mode of the high-power outputs such as startup, climbing, acceleration
Device, can be greatly enhanced the performance of electric vehicle.In addition, ultracapacitor is alternatively arranged as stand-by power supply, independent current source
In the field extensive use such as communication, industry.Therefore, ultracapacitor is always the focus of people's research.
The topmost of aqueous super capacitor has the disadvantage that energy density is low, seriously limits ultracapacitor further wide
General application, so current top priority is exactly to improve the energy density of ultracapacitor.According to density energy formula E=1/
2CV2, its energy density (E) is relevant with its operating potential window (V) and its capacity (C), wherein can be seen that energy is close from formula
There is exponential relationship in degree and operating potential window, therefore raising operating potential window is particularly important.
Due to MnO2With larger specific capacitance and higher oxygen evolution potential (1V), therefore it is especially suitable for doing high potential and surpasses
The electrode material of level capacitor.But report at present with MnO2For the ultracapacitor such as ACS Nano of base, 6 (5), 4020-
40282012nd, Advanced Functional Material, 21,2366-2375,2011 grade operating potential windows 1.6V~
Between 2.0V, energy density is in 20~50Wh kg-1, energy density and potential window are all than relatively limited.Recently, there are several problems
Group includes this seminar and found to MnO2Carry out pre- embedding cation such as (Na+And K+), MnO can be effectively improved2Electrochemical scholarship and moral conduct
For in MnO2In embedded a large amount of cations it is still extremely difficult.
The content of the invention
In order to overcome the current present situation that aqueous super capacitor potential window is narrow, energy density is low, the purpose of the present invention is
A kind of Na of high Na contents is providedxMnO2Positive electrode, preparation method and this positive electrode of utilization build 2.6V ultra-wide current potentials
The method of the water system Asymmetric Supercapacitor of window, there is high power characteristic, excellent cycle life, 2.6V to surpass simultaneously for it
The features such as wide operating potential window, high energy density and inexpensive and good security performance.
For achieving the above object, the technical scheme taken of the present invention is：A kind of NaxMnO2Positive electrode, it is described
NaxMnO2X=0.55 in positive electrode.
Above-mentioned NaxMnO2The preparation process of positive electrode is as follows：
1) using preparing Mn on cathodic electrodeposition method carbon cloth after the pre-treatment3O4Nm wall array；
2) by Mn3O4Nm wall array is immersed in NaOH solution, then in hydro-thermal reaction 12 at 120 DEG C~180 DEG C~
25h, obtains Na0.55MnO2Nm wall array.
Further, step 2) in, the molar concentration of NaOH solution is 0.5~1.5M.
Above-mentioned NaxMnO2Positive electrode builds the application in 2.6V water system Asymmetric Supercapacitors as positive electrode.
Compared with prior art, it is an advantage of the invention that：
(1)Na0.55MnO2Na contents with superelevation, the MnO of high Na contents2With excellent chemical property, including it is super
Wide 0~1.3V of potential window (vs.Ag/AgCl), high specific capacitance 366F g-1, and excellent high rate performance and circulation
It is stable.
(2)Na0.55MnO2//Fe3O4@C water system Asymmetric Supercapacitors have ultra-wide operating potential window 2.6V, superelevation
Energy density 87Wh kg-1, wherein 2.6V potential window is higher than current all aqueous super capacitors reported.This
Invention is for promoting the further development of aqueous super capacitor to have great importance.
(3) present invention is that electrode material is prepared on carbon cloth, and binder free, the use of conductive agent, preparation flow are short, just
In large-scale production.And the ultracapacitor being assembled into has good flexible folded form, is especially suitable for flexible wearable
Electronic equipment.
Brief description of the drawings
Fig. 1 is the Na in embodiment 10.55MnO2Scanning electron microscope (SEM) photograph.
Fig. 2 is the Na in embodiment 10.55MnO2The charging and discharging curve of electrode material.
Fig. 3 is the Na in embodiment 10.55MnO2//Fe3O4The charging and discharging curve of@C water system Asymmetric Supercapacitors.
Fig. 4 is the Na in embodiment 10.55MnO2//Fe3O4The cycle life figure of@C water system Asymmetric Supercapacitors.
Embodiment
The present invention is described in further detail with reference to the accompanying drawings and detailed description：
Embodiment 1
The first step：The pretreatment of carbon cloth：Using 90 DEG C of nitric acid treatment carbon cloth, 6h, remove in surface impurity, absolute ethyl alcohol and protect
Deposit standby.
Second step：Mn is prepared on carbon cloth using cathodic electrodeposition method3O4Nm wall array.Cathodic electrodeposition method is
Based on three-electrode system, wherein using carbon cloth as working electrode, platinized platinum is that Ag/AgCl is reference electrode, and three electrodes are put to electrode
Progress -1.8V constant voltages are deposited in the sodium sulphate electrolyte by 0.1M manganese acetates and 0.1M, are kept 20min, are obtained Mn (OH)2
Nm wall array, is then placed within air and ultimately forms Mn3O4Nm wall array.
3rd step：In Mn3O4On the basis of nm wall array, Na is prepared using hydrothermal method0.55MnO2Nm wall array.
Specifically include：By Mn3O4Nm wall array is immersed in 40mL 1M NaOH solutions, is then transferred into water heating kettle and is carried out hydro-thermal,
Hydrothermal temperature is 160 DEG C, and the time is 20h, finally gives Na0.55MnO2Nm wall array.Fig. 1 is what the present embodiment was obtained
Na0.55MnO2The scanning electron microscope (SEM) photograph of nm wall, detects that the present embodiment can obtain what is be assembled into by nanometer sheet completely by test
Na0.55MnO2Nm wall positive electrode.Fig. 2 is Na0.55MnO2The charging and discharging curve of electrode material, detects Na0.55MnO2Material
Potential window can reach 0~1.3V.
4th step：Finally with 1M Na2SO4For electrolyte, Na of the same area is utilized0.55MnO2Positive pole and Fe3O4@C are born
Pole, is assembled into water system Asymmetric Supercapacitor, wherein utilizing aluminium under the isolation of cellulose acetate membrane barrier film using metal collector
Plastic film is used as encapsulating film.Fig. 3 is Na in the present embodiment0.55MnO2//Fe3O4The charging and discharging curve of@C ultracapacitors, can from figure
To find out that this super capacitor has 2.6V steady operation potential window, and with high coulombic efficiency.Fig. 4 is this implementation
Na in example0.55MnO2//Fe3O4Still there are 97% capability retention, table after the cycle life figure of@C ultracapacitors, 7000 circles
Reveal extremely stable electrochemical stability.
Embodiment 2
The first step：The pretreatment of carbon cloth：Using 90 DEG C of nitric acid treatment carbon cloth, 6h, remove in surface impurity, absolute ethyl alcohol and protect
Deposit standby.
Second step：Mn is prepared on carbon cloth using cathodic electrodeposition method3O4Nm wall array.Cathodic electrodeposition method is
Based on three-electrode system, wherein using carbon cloth as working electrode, platinized platinum is that Ag/AgCl is reference electrode, and three electrodes are put to electrode
Progress -1.8V constant voltages are deposited in the sodium sulphate electrolyte by 0.1M manganese acetates and 0.1M, are kept 20min, are obtained Mn (OH)2
Nm wall array, is then placed within air and ultimately forms Mn3O4Nm wall array.
3rd step：In Mn3O4On the basis of nm wall array, Na is prepared using hydrothermal method0.55MnO2Nm wall array.
Specifically include：By Mn3O4Nm wall array is immersed in 40mL 1M NaOH solutions, is then transferred into water heating kettle and is carried out hydro-thermal,
Hydrothermal temperature is 160 DEG C, and the time is 12h, finally gives Na0.55MnO2Nm wall array.
4th step：Finally with 1M Na2SO4For electrolyte, Na of the same area is utilized0.55MnO2Positive pole and Fe3O4@C are born
Pole, is assembled into water system Asymmetric Supercapacitor, wherein utilizing aluminium under the isolation of cellulose acetate membrane barrier film using metal collector
Plastic film is used as encapsulating film.
Embodiment 3
The first step：The pretreatment of carbon cloth：Using 90 DEG C of nitric acid treatment carbon cloth, 6h, remove in surface impurity, absolute ethyl alcohol and protect
Deposit standby.
Second step：Mn is prepared on carbon cloth using cathodic electrodeposition method3O4Nm wall array.Cathodic electrodeposition method is
Based on three-electrode system, wherein using carbon cloth as working electrode, platinized platinum is that Ag/AgCl is reference electrode, and three electrodes are put to electrode
Progress -1.8V constant voltages are deposited in the sodium sulphate electrolyte by 0.1M manganese acetates and 0.1M, are kept 20min, are obtained Mn (OH)2
Nm wall array, is then placed within air and ultimately forms Mn3O4Nm wall array.
3rd step：In Mn3O4On the basis of nm wall array, Na is prepared using hydrothermal method0.55MnO2Nm wall array.
Specifically include：By Mn3O4Nm wall array is immersed in 40mL 1M-NaOH solution, is then transferred into water heating kettle and is carried out hydro-thermal,
Hydrothermal temperature is 180 DEG C, and the time is 12h, finally gives Na0.55MnO2Nm wall array.
4th step：Finally with 1M Na2SO4For electrolyte, Na of the same area is utilized0.55MnO2Positive pole and Fe3O4@C are born
Pole, is assembled into water system Asymmetric Supercapacitor, wherein utilizing aluminium under the isolation of cellulose acetate membrane barrier film using metal collector
Plastic film is used as encapsulating film.
Claims (6)
1. a kind of NaxMnO2Positive electrode, it is characterised in that described NaxMnO2X=0.55 in positive electrode.
2. Na as claimed in claim 1xMnO2Positive electrode, it is characterised in that preparation process is as follows：
1) using preparing Mn on cathodic electrodeposition method carbon cloth after the pre-treatment3O4Nm wall array；
2) by Mn3O4Nm wall array is immersed in NaOH solution, then in 12~25h of hydro-thermal reaction at 120 DEG C~180 DEG C, is obtained
To Na0.55MnO2Nm wall array.
3. Na as claimed in claim 2xMnO2Positive electrode, it is characterised in that step 2) in, the molar concentration of NaOH solution
For 0.5~1.5M.
4. Na as claimed in claim 1xMnO2The preparation method of positive electrode, it is characterised in that comprise the following steps：
1) using preparing Mn on cathodic electrodeposition method carbon cloth after the pre-treatment3O4Nm wall array；
2) by Mn3O4Nm wall array is immersed in NaOH solution, then in 12~25h of hydro-thermal reaction at 120 DEG C~180 DEG C, is obtained
To Na0.55MnO2Nm wall array.
5. method as claimed in claim 4, it is characterised in that step 2) in, the molar concentration of NaOH solution for 0.5~
1.5M。
6. Na as claimed in claim 1xMnO2Application of the positive electrode in 2.6V water system Asymmetric Supercapacitors are built.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710230470.0A CN107045948B (en) | 2017-04-11 | 2017-04-11 | NaxMnO2Positive electrode, preparation method and applications |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710230470.0A CN107045948B (en) | 2017-04-11 | 2017-04-11 | NaxMnO2Positive electrode, preparation method and applications |
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| Publication Number | Publication Date |
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| CN107045948A true CN107045948A (en) | 2017-08-15 |
| CN107045948B CN107045948B (en) | 2018-10-12 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107946564A (en) * | 2017-11-16 | 2018-04-20 | 武汉理工大学 | Rich sodium manganese base Na4Mn2O5/Na0.7MnO2Composite material and its preparation method and application |
| CN108346517A (en) * | 2018-02-06 | 2018-07-31 | 陕西师范大学 | Nanometer Nb2O5The preparation method of/carbon cloth combination electrode material |
| CN109935474A (en) * | 2019-03-16 | 2019-06-25 | 南昌大学 | A kind of magnanimity preparation NaxMnO2The method of electrode material |
| CN111430156A (en) * | 2020-03-20 | 2020-07-17 | 西北工业大学 | L i4Mn5O12Preparation method and use method of nanosheet material |
| AU2020294319B1 (en) * | 2020-11-11 | 2021-03-25 | Hubei University | Transition metal ions doped trimanganese tetraoxide nanosheet arrays grown based on carbon cloth, and preparation method and application thereof |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107946564A (en) * | 2017-11-16 | 2018-04-20 | 武汉理工大学 | Rich sodium manganese base Na4Mn2O5/Na0.7MnO2Composite material and its preparation method and application |
| CN108346517A (en) * | 2018-02-06 | 2018-07-31 | 陕西师范大学 | Nanometer Nb2O5The preparation method of/carbon cloth combination electrode material |
| CN108346517B (en) * | 2018-02-06 | 2019-08-20 | 陕西师范大学 | Nanometer Nb2O5The preparation method of/carbon cloth combination electrode material |
| CN109935474A (en) * | 2019-03-16 | 2019-06-25 | 南昌大学 | A kind of magnanimity preparation NaxMnO2The method of electrode material |
| CN111430156A (en) * | 2020-03-20 | 2020-07-17 | 西北工业大学 | L i4Mn5O12Preparation method and use method of nanosheet material |
| CN111430156B (en) * | 2020-03-20 | 2021-09-07 | 西北工业大学 | Li4Mn5O12Preparation method and use method of nanosheet material |
| AU2020294319B1 (en) * | 2020-11-11 | 2021-03-25 | Hubei University | Transition metal ions doped trimanganese tetraoxide nanosheet arrays grown based on carbon cloth, and preparation method and application thereof |
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