CN109830384A - A kind of Na2Mn8O16/Mn2O3The preparation of composite material and its test method of chemical property - Google Patents
A kind of Na2Mn8O16/Mn2O3The preparation of composite material and its test method of chemical property Download PDFInfo
- Publication number
- CN109830384A CN109830384A CN201910090432.9A CN201910090432A CN109830384A CN 109830384 A CN109830384 A CN 109830384A CN 201910090432 A CN201910090432 A CN 201910090432A CN 109830384 A CN109830384 A CN 109830384A
- Authority
- CN
- China
- Prior art keywords
- composite material
- solution
- preparation
- test
- chemical property
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- 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
- Y02E60/10—Energy storage using batteries
Landscapes
- Battery Electrode And Active Subsutance (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
Abstract
The invention belongs to technical field of composite preparation, disclose a kind of Na2Mn8O16/Mn2O3The preparation of composite material and its test method of chemical property, by KOH and NaOH deionized water dissolving, wiring solution-forming A；By the CH of 0.5mol/L3COONa solution pours into the Mn (CH of 1.0mol/L3COO)2Wiring solution-forming B in solution；Solution B is added dropwise in solution A；After being added dropwise to complete, mixed solution is transferred in autoclave, reacts for 24 hours under the conditions of 180 DEG C, is centrifugated product after cooled to room temperature；Substance after separation is put into tube furnace and is dried, the lower 500 DEG C of calcinings 5h of air atmosphere, natural cooling.The present invention is characterized by structure to material and pattern, and carries out electrochemical property test to material, it is known that the composite material forthright again and cycle performance with good stability and outstanding.
Description
Technical field
The invention belongs to technical field of composite preparation more particularly to a kind of Na2Mn8O16/Mn2O3The system of composite material
Standby and its chemical property test method.
Background technique
Currently, the prior art commonly used in the trade is such that
Transition metal oxide is frequently used to the electrode active as supercapacitor due to its unique chemical property
Property substance.Wherein Mn oxide (the Mn in transition metal oxidexOy) there is low cost, oxidation state can be changed, excellent circulation
Performance and higher capacitance and widely studied.The oxide form of Mn has very much, such as: MnO2, Mn2O3, Mn3O4Deng,
Wherein MnO2Application at most.MnO can be prepared using the method for co-precipitation2Nanoparticle can be prepared using hydro-thermal method
Mn2O3Nanoparticle, there are also some studies have shown that in Mn2O3Carbon material is adulterated in material can be improved the capacitor of composite material
Amount.
Mn oxide is in sodium-ion battery in application, general all can the (NaMnO in the form of sodium manganate material2).Mangaic acid
The common preparation method of sodium generally has solid phase method, hydro-thermal method, sol-gal process etc..And another novel Na2Mn8O16Material
Also there is electro-chemical activity, can be used as the electrode material of capacitor and sodium-ion battery, height can be passed through in existing technology
Warm calcination method prepares Na2Mn8O16, sodium carbonate and manganese dioxide were dissolved in distilled water according to molar ratio 1:8 before this in document,
12h is stirred under room temperature, is then evaporated solution at a temperature of 70 DEG C, then in 750 DEG C of temperature lower calcination 36h, is finally produced
Object.Such method is comparatively laborious, and the time cycle is longer, while MnO2It is not soluble in water, so the solution dispersion prepared is not
It is good.
In conclusion problem of the existing technology is:
(1) Na in the prior art2Mn8O16The synthesis temperature of material is relatively high, and the time cycle reacted is also too long, wave
A large amount of electric energy and time are taken.
(2) Na in the prior art2Mn8O16The synthesis step of material is comparatively laborious, and pretreatment process takes a long time, and
And the method used is to be evaporated solution at a temperature of 70 DEG C, this method wastes time and the energy, is unable to large-scale production.
(3) Na in the prior art2Mn8O16The synthesis of material uses MnO2As raw material, because of MnO2It is not soluble in water, institute
It is bad with the solution dispersion of preparation, ion cannot be uniformly dispersed on an atomic scale, to subsequent Na2Mn8O16Material
Synthesis causes very big influence.
(4) prior art Na2Mn8O16The synthesis products obtained therefrom ingredient of material is single, simultaneously as be high-temperature calcination, institute
The particle for obtaining material is coarseer, and specific capacitance is not high.
Solve the difficulty and meaning of above-mentioned technical problem: in conclusion to solve Na in the prior art2Mn8O16Material
The shortcomings that synthesis, needs replacing raw material, invents new synthetic method, can herein by the method for hydro-thermal method and subsequent heat treatment
To prepare Na2Mn8O16/Mn2O3Composite material.It solves the disadvantage that in the prior art, and during the preparation process due to two kinds of sides
Method synergistic effect, can prepare the composite material with height ratio capacity, the counterfeit electricity generated with bimetallic redox reaction
The characteristics of appearance.Compared with prior art, the method can shorten the time cycle of preparation, and the temperature calcined is lower, simultaneously
The manganese acetate of use can be dissolved in distilled water and form aqueous solution, the reaction between solution can make the dispersion of material as raw material
Property and homogeneity are more preferable.
Summary of the invention
In view of the problems of the existing technology, the present invention provides a kind of Na2Mn8O16/Mn2O3The preparation of composite material and
The test method of its chemical property.
The invention is realized in this way a kind of Na with outstanding high rate performance2Mn8O16/Mn2O3The preparation of composite material
Method are as follows:
Step 1: by 3.00gKOH and 1.50gNaOH 20mL deionized water dissolving, wiring solution-forming A；
Step 2: by the CH of 5mL0.5mol/L3COONa solution pours into the Mn (CH of 5mL1.0mol/L3COO)2Match in solution
At solution B；
Step 3: under agitation, solution B is added dropwise in solution A；
Step 4: after being added dropwise to complete, mixed solution being transferred in autoclave, is reacted for 24 hours under the conditions of 180 DEG C,
Product is centrifugated after cooled to room temperature；
Step 5: the substance after separation being put into tube furnace and is dried, the lower 500 DEG C of calcinings 5h of air atmosphere, natural cooling
?.
Further, the Na2Mn8O16/Mn2O3The structure and pattern of composite material are characterized using XRD and SEM, XRD
Test uses Empyrean x-ray diffractometer, and pipe presses 40kV, Guan Liu 40mA, Cu target K alpha ray λ=0.15406nm；SEM is surveyed
Use JSM-6360LV scanning electron microscope, acceleration voltage 25kV.
Another object of the present invention is to provide Na2Mn8O16/Mn2O3The test method of the chemical property of composite material,
This method are as follows:
Step 1: with the Na of preparation2Mn8O16/Mn2O3As a positive electrode active material, acetylene black is as conductive for composite material
Agent, PTFE are uniformly mixed according to the ratio of mass ratio 8:1:1 as binder, anode electrode piece are made；
Step 2: using capacitor active carbon as negative electrode active material, acetylene black as conductive agent, PTFE as binder,
It is uniformly mixed also according to the ratio of mass ratio 8:1:1, negative electricity pole piece is made, be saturated KNO3Solution is as electrolyte, assembling
At button simulated battery；
Step 3: using the prepared button cell of LANHE battery test system measurement, electrochemical workstation measurement circulation
The AC impedance of volt-ampere curve and material before and after charge and discharge.
In conclusion advantages of the present invention and good effect are as follows:
Na can be prepared by high-temperature calcination in existing technology2Mn8O16, before this according to molar ratio 1:8 by sodium carbonate
It is dissolved in distilled water with manganese dioxide, 12h is stirred under room temperature, be then evaporated solution at a temperature of 70 DEG C, then at 750 DEG C
Temperature lower calcination 36h, obtains final product.Such method is comparatively laborious, and the time cycle is longer, while MnO2It does not dissolve in
Water, so the solution dispersion prepared is bad.The present invention uses manganese acetate, as raw material, by hydro-thermal and to forge instead of manganese dioxide
The period that the method combined shortens reaction is burnt, and the temperature calcined is lower.
The present invention is regulated and controled using potassium hydroxide and sodium hydroxide as raw material using Sodium acetate trihydrate and four water acetic acid manganese as raw material
Alkaline environment is successively prepared for Na by hydrothermal synthesis and the method for high-temperature calcination2Mn8O16/Mn2O3Composite material, by material
The structure and pattern of material are characterized, and carry out electrochemical property test to material, it is known that the composite material has good steady
Qualitative and outstanding forthright again and cycle performance.0.1A/g, 0.2A/g, 0.4A/g, 0.8A/g, 1.0A/g, 2.0A/g,
Specific discharge capacity under 4.0A/g current density be respectively 126.5F/g, 110.3F/g, 95.2F/g, 86.6F/g, 83.6F/g,
74.1F/g、61.8F/g。
Detailed description of the invention
Fig. 1 is Na provided in an embodiment of the present invention2Mn8O16/Mn2O3The preparation method flow chart of composite material；
Fig. 2 is Na provided in an embodiment of the present invention2Mn8O16/Mn2O3The test method stream of the chemical property of composite material
Cheng Tu；
Fig. 3 is Na provided in an embodiment of the present invention2Mn8O16/Mn2O3The XRD diagram of composite material；
Fig. 4 is Na provided in an embodiment of the present invention2Mn8O16/Mn2O3The SEM of composite material schemes；
Fig. 5 is Na provided in an embodiment of the present invention2Mn8O16/Mn2O3Circulation volt of the composite material under different scanning rates
Pacify curve；
Fig. 6 is the specific capacity schematic diagram of CV curve under different scanning rates provided in an embodiment of the present invention；
Fig. 7 is Na provided in an embodiment of the present invention2Mn8O16/Mn2O3Composite material is under different charging and discharging currents density
First charge-discharge curve graph；
Fig. 8 is Na provided in an embodiment of the present invention2Mn8O16/Mn2O3Electric discharge ratio of the composite material under different current densities
Capacity Plan；
Fig. 9 is Na provided in an embodiment of the present invention2Mn8O16/Mn2O3Charge and discharge of the composite material under different current densities
Circulation figure；
Figure 10 (a) is Na provided in an embodiment of the present invention2Mn8O16/Mn2O3Composite material follows under 0.2A/g current density
The specific capacity and efficiency chart that ring is 900 times；
Figure 10 (b) is Na provided in an embodiment of the present invention2Mn8O16/Mn2O3Composite material follows under 0.8A/g current density
The specific capacity and efficiency chart that ring is 800 times；
Figure 11 is Na provided in an embodiment of the present invention2Mn8O16/Mn2O3AC impedance of the composite material before and after charge and discharge.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to embodiments, to the present invention
It is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not used to
Limit the present invention.
Application principle of the invention is described in detail with reference to the accompanying drawing.
As shown in Figure 1, Na provided in an embodiment of the present invention2Mn8O16/Mn2O3Composite material the preparation method comprises the following steps:
S101: by KOH and NaOH deionized water dissolving, wiring solution-forming A；
S102: by the CH of 0.5mol/L3COONa solution pours into the Mn (CH of 1.0mol/L3COO)2Wiring solution-forming B in solution；
S103: under agitation, solution B is added dropwise in solution A；
S104: after being added dropwise to complete, mixed solution being transferred in autoclave, is reacted for 24 hours under the conditions of 180 DEG C, from
Product is centrifugated after being so cooled to room temperature；
S105: the substance after separation being put into tube furnace and is dried, the lower 500 DEG C of calcinings 5h of air atmosphere, and natural cooling is
It can.
By 3.00gKOH and 1.50gNaOH 20mL deionized water dissolving, wiring solution-forming A in step S101.
By the CH of 5mL0.5mol/L in step S1023COONa solution pours into the Mn (CH of 5mL1.0mol/L3COO)2Solution
Middle wiring solution-forming B.
Na provided in an embodiment of the present invention2Mn8O16/Mn2O3The structure and pattern of composite material carry out table using XRD and SEM
Sign, XRD test use Empyrean x-ray diffractometer, and pipe presses 40kV, Guan Liu 40mA, Cu target K alpha ray λ=0.15406nm；
SEM test uses JSM-6360LV scanning electron microscope, acceleration voltage 25kV.
As shown in Fig. 2, Na provided in an embodiment of the present invention2Mn8O16/Mn2O3The test side of the chemical property of composite material
Method are as follows:
S201: with the Na of preparation2Mn8O16/Mn2O3Composite material as a positive electrode active material, acetylene black as conductive agent,
PTFE is uniformly mixed according to the ratio of mass ratio 8:1:1 as binder, anode electrode piece is made；
S202: using capacitor active carbon as negative electrode active material, acetylene black is as conductive agent, and PTFE is as binder, together
Sample is uniformly mixed according to the ratio of mass ratio 8:1:1, and negative electricity pole piece is made, and is saturated KNO3Solution is assembled into as electrolyte
Button simulated battery；
S203: using the prepared button cell of LANHE battery test system measurement, electrochemical workstation measurement circulation volt
Pacify the AC impedance of curve and material before and after charge and discharge.
The present invention is described further combined with specific embodiments below.
XRD analysis
The material is Na as can be seen from Figure 32Mn8O16/Mn2O3Composite material, 110,200,310,521 institutes are right in XRD diagram
The peak answered matches with standard card PDF#00-029-1244, is Na2Mn8O16Diffraction maximum；Other peaks are Mn2O3Diffraction
Peak matches with standard card PDF#00-024-0508.The peak shape at each peak is sharp in figure, and no other miscellaneous peaks, material
Structure is the Na by tetragonal crystal system2Mn8O16With the Mn of rhombic system2O3Interaction rearranges.
Sem analysis
As can be seen from Figure 4 prepared Na2Mn8O16/Mn2O3Composite material is that have the size of regular hexagonal not
One disk-like structure, and there are many little particles to be attached to its surface.The thickness of the material is about 3.64 μm, hexagon disk it is straight
Diameter it is small have 2.27 μm, big has 6.82 μm.Presoma is synthesized by hydro-thermal method before this in the preparation process of material, and logical
It crosses high-temperature calcination and has obtained final product.Due to there is hot stage during the preparation process, so with hexagon block structure
Material may be to be formed together by the little particle agglomeration on surface.
Electrochemical property test
Fig. 5 is Na2Mn8O16/Mn2O3The CV curve that composite material measures under different scanning rates.Fig. 6 is different scanning
The specific capacity of CV curve under rate, can calculate according to the following formula 1mV/s, 3mV/s, 5mV/s, 10mV/s, 30mV/s,
Specific capacity under 50mV/s, 100mV/s sweep speed is respectively 124.1F/g, 88.2F/g, 74.5F/g, 66.2F/g, 60.7F/
g、57.9F/g、56.3F/g。
Wherein C is specific capacity；Q is discharge electricity amount, i.e. the ratio between CV curve integral area half and sweep speed；M is activity
The quality of substance；Δ V is potential region.
Fig. 7 is Na2Mn8O16/Mn2O3First charge-discharge curve graph of the composite material under different charging and discharging currents density；Figure
8 be Na2Mn8O16/Mn2O3Specific discharge capacity figure of the composite material under different current densities.As can be seen from Figure 8, exist
Specific discharge capacity under 0.1A/g, 0.2A/g, 0.4A/g, 0.8A/g, 1.0A/g, 2.0A/g, 4.0A/g current density is respectively
126.5F/g,110.3F/g,95.2F/g,86.6F/g,83.6F/g,74.1F/g,61.8F/g.The number that charge-discharge test measures
According to compared with the data that CV curve is calculated, it can be found that the size of specific capacity very close to.
Fig. 9 is Na2Mn8O16/Mn2O3Charge and discharge cycles figure of the composite material under different current densities.It can from figure
Out with the increase of current density, the specific capacity of material is sequentially reduced.And specific capacity and Fig. 7, Fig. 8 survey under each multiplying power
The data obtained are consistent.As can be seen from the figure the material has good high rate performance.
Figure 10 is Na2Mn8O16/Mn2O3The cycle performance figure of composite material.It can find out from Figure 10 (a) 0.2A/g's
Under current density after charge and discharge cycles 900 times, Na2Mn8O16/Mn2O3The specific discharge capacity of composite material is from 111.02F/g
It is reduced to 93.42F/g.The capacity retention ratio of material is initial 84% after 900 charge and discharge cycles.It can be from figure
After finding out under the current density of 0.8A/g charge and discharge cycles 800 times in 10 (b), Na2Mn8O16/Mn2O3Composite material
Specific discharge capacity is reduced to 68.42F/g from 86.02F/g.The capacity retention ratio of material after 800 charge and discharge cycles
It is initial 80%.
Figure 11 is Na2Mn8O16/Mn2O3AC impedance curve of the composite material before and after charge and discharge compares EIS figure medium-high frequency
The semicircle diameter in area and the straight slope of low frequency range, it can be seen that after it have passed through charge and discharge cycles, Na2Mn8O16/
Mn2O3Although the impedance of composite material increased, but be consistent substantially or with the impedance before circulation.So this can also
To find out Na2Mn8O16/Mn2O3Composite material has fine stability.
In conclusion the present invention is with potassium hydroxide and sodium hydroxide using Sodium acetate trihydrate and four water acetic acid manganese as raw material
Raw material regulates and controls alkaline environment, is successively prepared for Na by hydrothermal synthesis and the method for high-temperature calcination2Mn8O16/Mn2O3Composite wood
Material.Due to there is hot stage during the preparation process, so material is reunited together by many little particles, the size of formation is not
One, the plate-like material with regular hexagonal.Maximum specific discharge capacity of material under the conditions of 0.1A/g has reached 126.5F/
g；Under the current density of 0.2A/g after charge and discharge cycles 900 times, Na2Mn8O16/Mn2O3The specific discharge capacity of composite material
93.42F/g is reduced to from 111.02F/g.The capacity retention ratio of material is initial after 900 charge and discharge cycles
84%；Under the current density of 0.8A/g after charge and discharge cycles 800 times, Na2Mn8O16/Mn2O3The electric discharge ratio of composite material
Capacity is reduced to 68.42F/g from 86.02F/g.The capacity retention ratio of material is initial after 800 charge and discharge cycles
80%.It can be seen that the impedance of the material does not change significantly by the impedance curve of material before and after comparison charge and discharge, institute
Even if the material can also keep good stability with after it have passed through charge and discharge cycles.It can be seen by electro-chemical test
The material has outstanding high rate performance and cycle performance out.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (4)
1. a kind of Na2Mn8O16/Mn2O3The preparation method of composite material, which is characterized in that the Na2Mn8O16/Mn2O3Composite wood
Material the preparation method comprises the following steps:
Step 1: by 3.00gKOH and 1.50gNaOH 20mL deionized water dissolving, wiring solution-forming A；
Step 2: by the CH of 5mL0.5mol/L3COONa solution pours into the Mn (CH of 5mL1.0mol/L3COO)2It is made into solution molten
Liquid B；
Step 3: under agitation, solution B is added dropwise in solution A；
Step 4: after being added dropwise to complete, mixed solution being transferred in autoclave, is reacted for 24 hours under the conditions of 180 DEG C, natural
Product is centrifugated after being cooled to room temperature；
Step 5: the substance after separation being put into tube furnace and is dried, the lower 500 DEG C of calcinings 5h of air atmosphere, natural cooling.
2. Na as described in claim 12Mn8O16/Mn2O3The preparation method of composite material, which is characterized in that the Na2Mn8O16/
Mn2O3The structure and pattern of composite material are characterized using XRD and SEM, and XRD test uses Empyrean X-ray diffraction
Instrument, pipe press 40kV, Guan Liu 40mA, Cu target K alpha ray λ=0.15406nm；SEM test uses JSM-6360LV scanning electron microscopy
Mirror, acceleration voltage 25kV.
3. one kind Na as described in claim 1~2 any one2Mn8O16/Mn2O3The preparation method preparation of composite material
Na2Mn8O16/Mn2O3Composite material.
4. a kind of Na as claimed in claim 32Mn8O16/Mn2O3The test method of the chemical property of composite material, feature exist
In the Na2Mn8O16/Mn2O3The test method of the chemical property of composite material are as follows:
Step 1: with the Na of preparation2Mn8O16/Mn2O3Composite material as a positive electrode active material, acetylene black as conductive agent,
PTFE is uniformly mixed according to the ratio of mass ratio 8:1:1 as binder, anode electrode piece is made；
Step 2: using capacitor active carbon as negative electrode active material, acetylene black is as conductive agent, and PTFE is as binder, equally
It is uniformly mixed according to the ratio of mass ratio 8:1:1, negative electricity pole piece is made, be saturated KNO3Solution is assembled into button as electrolyte
Formula simulated battery；
Step 3: using the prepared button cell of LANHE battery test system measurement, electrochemical workstation measures cyclic voltammetric
The AC impedance of curve and material before and after charge and discharge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910090432.9A CN109830384B (en) | 2019-01-30 | 2019-01-30 | Na2Mn8O16/Mn2O3Preparation of composite material and method for testing electrochemical performance of composite material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910090432.9A CN109830384B (en) | 2019-01-30 | 2019-01-30 | Na2Mn8O16/Mn2O3Preparation of composite material and method for testing electrochemical performance of composite material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109830384A true CN109830384A (en) | 2019-05-31 |
| CN109830384B CN109830384B (en) | 2021-02-26 |
Family
ID=66863014
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910090432.9A Active CN109830384B (en) | 2019-01-30 | 2019-01-30 | Na2Mn8O16/Mn2O3Preparation of composite material and method for testing electrochemical performance of composite material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109830384B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103896339A (en) * | 2012-12-27 | 2014-07-02 | 北京汉能创昱科技有限公司 | Preparation method of sodium manganese oxide |
| CN106207167A (en) * | 2016-07-29 | 2016-12-07 | 昆明理工大学 | A kind of preparation method of anode material for lithium-ion batteries |
| CN107601569A (en) * | 2017-09-27 | 2018-01-19 | 江苏科技大学 | A kind of banding sodium manganese oxide and preparation method and application |
| CN107720829A (en) * | 2017-09-25 | 2018-02-23 | 南京理工大学 | The preparation method of lithium ion battery negative material zinc manganate |
-
2019
- 2019-01-30 CN CN201910090432.9A patent/CN109830384B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103896339A (en) * | 2012-12-27 | 2014-07-02 | 北京汉能创昱科技有限公司 | Preparation method of sodium manganese oxide |
| CN106207167A (en) * | 2016-07-29 | 2016-12-07 | 昆明理工大学 | A kind of preparation method of anode material for lithium-ion batteries |
| CN107720829A (en) * | 2017-09-25 | 2018-02-23 | 南京理工大学 | The preparation method of lithium ion battery negative material zinc manganate |
| CN107601569A (en) * | 2017-09-27 | 2018-01-19 | 江苏科技大学 | A kind of banding sodium manganese oxide and preparation method and application |
Non-Patent Citations (2)
| Title |
|---|
| 周晨亮: "层状铜锰复合氧化物控制合成", 《中国优秀硕士学位论文全文数据库 工程科技Ⅰ辑》 * |
| 王高军等: "锂离子电池正极材料Li1.2V3O8的合成及性能研究", 《电池工业》 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109830384B (en) | 2021-02-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106972155B (en) | A kind of bimetallic oxide and preparation method and application based on MOFs | |
| CN101840792B (en) | Hybrid super capacitor and manufacture method thereof | |
| CN109887761A (en) | A kind of preparation of Al doping Mn-O compoiste material and the test method of chemical property | |
| CN109686592B (en) | White beech mushroom-shaped nickel diselenide nano array electrode material and preparation method thereof | |
| CN107601579B (en) | The preparation method and its resulting materials of a kind of high-performance porous C o-Mn-O nanometer sheet material and application | |
| CN112670093A (en) | Porous Co3O4@ Ni-MOF core-shell structure nanosheet array material and preparation method and application thereof | |
| CN102107909A (en) | Method for preparing mesoporous nano manganese dioxide | |
| CN112830523B (en) | Molybdenum-doped cobaltosic oxide for super capacitor and preparation method thereof | |
| CN109133199A (en) | A kind of preparation method of the spherical nanometer molybdic acid nickel electrode material of high circulation performance | |
| CN111933899B (en) | Composite oxide electrode material and preparation method thereof | |
| CN110335760B (en) | Preparation method of nickel-doped banded nano basic cobalt carbonate electrode material | |
| CN111268745A (en) | NiMoO4@Co3O4Core-shell nano composite material, preparation method and application | |
| CN102583562B (en) | Preparation method of supercapacitor electrode material manganese dioxide | |
| CN107316749B (en) | Co3O4@CoWO4The preparation method and applications of nano-wire array Core-shell structure material | |
| CN108962617A (en) | A kind of preparation method and applications of self assembly cobaltosic oxide classification microballoon | |
| CN109712821A (en) | A kind of CuMn2O4/MnxOyThe preparation of composite material and its test method of chemical property | |
| CN106450262B (en) | A kind of hollow sphere pattern lithium titanate anode material and preparation method and application | |
| CN108666144A (en) | A kind of three-dimensional flower-shaped cobalt hydroxide-graphene composite material and preparation method thereof | |
| CN112467077A (en) | Universal electrochemical modification preparation method for effectively enhancing electricity storage performance of multiple transition metal oxides | |
| CN109817905A (en) | A kind of ZnMn2O4/Mn2O3The preparation of composite material and its test method of chemical property | |
| CN108963220B (en) | Preparation and application of multicomponent oxide of natural vegetable oil modified MOF structure | |
| CN109830384A (en) | A kind of Na2Mn8O16/Mn2O3The preparation of composite material and its test method of chemical property | |
| CN109860541A (en) | The preparation of tubulose lithium titanate/composite titania material and product and application with rule defect | |
| Li et al. | MnO2 nanosilks self-assembled micropowders: facile one-step hydrothermal synthesis and their application as supercapacitor electrodes | |
| CN109904436A (en) | A kind of cobalt titanate titanium dioxide compound nano wire and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |