CN106298272A - A kind of electrochemical capacitance metal ion mixing flower-shaped MnO2 nanometer sheet and preparation method thereof - Google Patents
A kind of electrochemical capacitance metal ion mixing flower-shaped MnO2 nanometer sheet and preparation method thereof Download PDFInfo
- Publication number
- CN106298272A CN106298272A CN201610966685.4A CN201610966685A CN106298272A CN 106298272 A CN106298272 A CN 106298272A CN 201610966685 A CN201610966685 A CN 201610966685A CN 106298272 A CN106298272 A CN 106298272A
- Authority
- CN
- China
- Prior art keywords
- flower
- nanometer sheet
- preparation
- mno
- metal ion
- 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.)
- Pending
Links
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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y30/00—Nanotechnology for materials or surface science, e.g. nanocomposites
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y40/00—Manufacture or treatment of nanostructures
-
- 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 flower-shaped MnO of electrochemical capacitance metal ion mixing2Nanometer sheet and preparation method thereof, is used the method for chemical precipitation to be guided by doped metal ion and prepares the MnO that nanometer sheet self assembly is flower-shaped2, its lamellar spacing is 3～5nm；Preparation process is: concentration be placed in ultrasonic constant temp water bath than manganese sulfate and the Ammonium persulfate. mixed aqueous solution for 1:1, at the uniform velocity drips the metal salt solution that concentration is 0.001～0.2mol/L in mixed solution simultaneously, continues thereafter with reaction 0.5～3h.The method preparation flow is simple, with low cost, it is thus achieved that the floriform appearance of nanoscale twins self assembly significantly increase electrode material specific surface area, the most beneficially electrolyte ion electrode material body mutually in diffusion so that it is have excellence chemical property.During sweep speed 50mV/s, recording than capacitance up to 303.6F/g, impedance is 4.2 Ω.
Description
Technical field
The present invention relates to the preparation field of electrochemical capacitance electrode material, be specifically related to a kind of electrochemical capacitance metal ion mixing flower
Shape MnO2Nanometer sheet and preparation method thereof.
Background technology
As transition metal oxide, there is variable oxidation state in manganese dioxide, have cheap, environmental friendliness,
The advantages such as wide material sources, the theory of its excellence compares capacitance characteristic simultaneously so that it is have the biggest as electrode material for super capacitor
Development potentiality.But, manganese dioxide, as electric conductivity poor during electrode material and electrode stability, causes it actual than electricity
Capacitance is far below its theoretical value.Improve electric conductivity and electrode stability has become problem demanding prompt solution.Along with nano material and
The development of doping techniques, has special nanostructured or blended metal oxide because having high-specific surface area, multiple oxidation valency
The feature such as state and high-specific capacitance super has become domestic and international study hotspot.[the Journal of Materials such as Feng X M
Chemistry A, 2013,1,12818-12825] manganese dioxide/Graphene of morphology controllable is achieved by one step hydro thermal method
The preparation of composite, the ratio capacitance of prepared petal-shaped manganese dioxide nano-plates/graphene composite material is up to 516.8F/
G, and there is good cyclical stability.Dai Yuming etc. [Chemistry Letters, 2014,43 (1): 122-124.]
In the case of magnetic agitation, MnO prepared by hydro-thermal method2Nano wire joins HAuCl4In solution (40mL, 1mmol/L), logical
Cross addition 0.06mmol ascorbic acid, prepare Au and wrap up MnO2The combination electrode material of nano wire, its than capacitance up to 400F/
g.But both approaches preparation flow is complicated, preparation process is difficult to effectively control, and Some Drugs is expensive, it is difficult to carry out work
Industry is promoted.
The patent documentation of Publication No. CN 104310486 A discloses a kind of one-step synthesis monolayer manganese dioxide nano-plates
Method, the method pass through permanganate single step reaction in acidic alkyl sulfate surfactant aqueous solution, utilize alkane
The hydrolysis of base sulfate surfactant generates corresponding alcohol in-situ reducing permanganate and generates manganese dioxide, but prepared by the method
Journey is simple, it is possible to obtains ultrathin nanometer chip architecture and has good redox characteristic, but the alkyl table that the method uses
Face activating agent has toxicity, and the acid solution used is strong acid, and more serious to environmental disruption, the method is unfavorable for that business pushes away
Extensively.
The patent documentation of Publication No. CN 103641174 A discloses a kind of nano-sheet MnO2-graphene composite material
Preparation method, the method is: manganese nitrate solution carries out redox reaction in hydrogen peroxide and alkali mixed solution and prepares powder body；
Described powder body is scattered in ammonium persulfate solution process, is subsequently dispersed in organic solvent, obtains nano-sheet MnO2Solution；Will
Described nano-sheet MnO2After solution dilution, mixing with the dispersion liquid of graphene powder, supersound process prepares nano-sheet
MnO2-graphene composite material, it is than capacitance up to 578F/g, but the method preparation flow is complicated, and MnO2With Graphene it is
Physical bond is unfavorable for the lifting of electrode stability.
Summary of the invention
It is an object of the invention to provide a kind of flower-shaped MnO of electrochemical capacitance metal ion mixing2Nanometer sheet and preparation method thereof,
The method preparation flow is short, low cost, pollution-free and electrochemical properties is excellent.
For reaching above-mentioned purpose, present invention provide the technical scheme that
A kind of flower-shaped MnO of electrochemical capacitance metal ion mixing2The preparation method of nanometer sheet, comprises the steps:
S1, compound concentration, than for the manganese sulfate of 1:1 and Ammonium persulfate. mixed aqueous solution, are placed on ultrasonic constant temp water-bath ring
In border, metal salt solution is at the uniform velocity added drop-wise in mixed solution simultaneously, continues thereafter with reaction a period of time；
S2, put in evaporating dish by after product centrifuge washing, after drying, put in humidistat and retain.
In step S1, preparation temperature is 30～60 DEG C, and the response time is 0.5～3h.
In step S1, the slaine dripped is the one in the sulfate liquor of nickel, aluminum, zinc or stannum, and time for adding is 2
～5min.
In step S1, dripped metal salt solution concentration is 0.005～0.1mol/L.
In step S2, drying condition is 30～50 DEG C and is dried 2～5h, or-30 DEG C～-50 DEG C of lyophilizations 5～10h.
The MnO that the present invention prepares2Nanometer sheet is self-assembled into flower-shaped.
Preferably, in step S1, the concentration of manganese sulfate and Ammonium persulfate. is 1mol/L, and the nickel sulfate solution concentration of dropping is
0.005mol/L；
Preferably, the metal salt solution dripped in step S1 is nickel, aluminum, zinc and the one of tin metal sulfate, dropping
Time is 3min, and temperature of reaction system is 40 DEG C, is 1h；
Preferably, the drying mode of step S2 is-30 DEG C of lyophilization 5h.
Preparing initial period, MnO2Nanometer sheet forming core is grown up, and along with the addition of dopant ion, the building-up effect of ion makes
Obtain MnO2Nanometer sheet regional area produces undulating composition and fluctuation of energy thus causes new forming core point to be formed, and gives birth on this basis
A length of nanometer sheet, by this growth pattern so that MnO2Present petal-like pattern.This flourishing flower sheet-like morphology effectively presses down
Make MnO2The overlap of nanometer sheet and gathering so that it is there is stable three dimensional structure and bigger specific surface area.It is as electrode
Can have bigger active area during material work, electrolyte and electrode material are fully contacted beneficially ion at electrode simultaneously
System exchanges transmission quickly and efficiently.Therefore, the electrode material for super capacitor that the method prepares has the electrochemistry of excellence
Characteristic.
The invention discloses the flower-shaped MnO of electrochemical capacitance metal ion mixing2Nanometer sheet and preparation method thereof, uses chemistry heavy
The method formed sediment is guided by doped metal ion prepares the MnO that nanometer sheet self assembly is flower-shaped2, its lamellar spacing is 3～5nm.
Preparation flow of the present invention is short, efficiency is high and low cost, environmental pollution are little, the flower-shaped MnO prepared2Electrode material has
Excellent electrochemical properties；This reaction system is simple, and is easily controlled reaction process, the flower-shaped MnO of preparation2There is 3 D stereo
Structure thus its electrode active area are relatively big, beneficially electrolyte ion electrode body mutually in quickly transmit, hence it is evident that promote electrification
Learning performance, recording it than capacitance is 303.6F/g (sweep speed 50mV/s), and impedance is 4.2 Ω.
Accompanying drawing explanation
The flower-shaped MnO that Fig. 1: the embodiment of the present invention 1 prepares2Nanometer sheet stereoscan photograph.
The flower-shaped MnO that Fig. 2: the embodiment of the present invention 1 prepares2Nanometer sheet Raman collection of illustrative plates.
The flower-shaped MnO that Fig. 3: the embodiment of the present invention 1 prepares2The cyclic voltammetry curve of nanometer sheet.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention made concrete introduction.
Embodiment 1
The present embodiment prepares MnO2The method of nanometer sheet electrode material, step is as follows:
S1, manganese sulfate mixed dissolution in beaker of the Ammonium persulfate. of 0.1mol/L Yu 0.1mol/L is obtained the water of 40mL
Solution.
S2, being placed on by beaker in ultrasonic constant temp water-bath, temperature is 40 DEG C, is the sulphuric acid of 0.005mol/L by 10mL concentration
Nickel solution, at the uniform velocity drops in above-mentioned mixed solution, and time for adding is 3min.Close beaker with preservative film, react 1h.
S3, by-30 DEG C of lyophilization 5h after product centrifuge washing.
Embodiment 2
Preparation process is same as in Example 1, is in ultrasonic constant temp water-bath in place of difference, and temperature is 30 DEG C, nickel sulfate
Concentration is 0.05mol/L.
Embodiment 3
Preparation process is same as in Example 1, is in ultrasonic constant temp water-bath in place of difference, and temperature is 60 DEG C, nickel sulfate
Concentration is 0.1mol/L, and the response time is 0.5h, and centrifuge washing product 50 DEG C is dried 2h.
Embodiment 4
Preparation process is same as in Example 3, is in ultrasonic constant temp water-bath in place of difference, and temperature is 45 DEG C, nickel sulfate
Concentration is 0.05mol/L, and the response time is 2h.
Embodiment 5
Preparation process is same as in Example 3, is in ultrasonic constant temp water-bath in place of difference, and temperature is 45 DEG C, nickel sulfate
Concentration is 0.005mol/L, and the response time is 3h.
Performance test
The electrode material that embodiment 1-5 prepares is mixed (anhydrous with white carbon black, politef (binding agent) by a certain percentage
Ethanol makees solvent), mix homogeneously after grinding in mortar, make the flake of 1cm × 1cm size.Nickel foam is cut into 1cm ×
The rectangular slat of 5cm size, is pressed in the product thin slice prepared one end of nickel foam, makes test electrode.Use three electrodes
System tests its ratio capacitance, and the electrode of preparation, as positive pole, is 2cm × 2cm platinized platinum to electrode, and reference electrode is Ag/AgCl
Electrodes, electrolyte solution is the Na of 0.5mol/L2SO4Solution, sweep speed is 50mV/s, and voltage window is 0～0.5V,
The MnO that embodiment 1 prepares2The cyclic voltammetry curve of electrode such as Fig. 2, embodiment 1-5 is than capacitance such as table 1.
Table 1 embodiment 1-5 prepares the ratio capacitance of sample
| Sample | Than capacitance (F/g) |
| Embodiment 1 | 303.6 |
| Embodiment 2 | 289.5 |
| Embodiment 3 | 274.6 |
| Embodiment 4 | 266.9 |
| Embodiment 5 | 257.6 |
As shown in Figure 1, the present invention prepares the MnO of embodiment 12Nanometer sheet electrode material has flower-shaped, the knot of 3 D stereo
Structure not only increases the specific surface area of material, also makes electrode active material be fully contacted with electrolyte, beneficially electrolyte from
Son electrode body mutually in diffusion, be obviously improved its chemical property；Fig. 2 is that embodiment 1 prepares MnO2The Raman figure of nanometer sheet
Spectrum, 642.9cm in figure-1There is Raman signal peak in place, correspond to the symmetrical stretching vibration of Mn-O key in manganese oxygen octahedra herein,
This peak corresponds to α-MnO2Eigen vibration peak, illustrate that the crystal structure of now Mn oxide is α-MnO2, this collection of illustrative plates does not shows simultaneously
Other peak positions are shown, show that dopant ion primarily serves guiding MnO2The effect of growth, has neither part nor lot in reaction and then guarantees MnO2
There is good crystal structure；It is as it is shown on figure 3, do not observe obvious oxidoreduction peak and bent that it circulates curve of bending over the desk
Line, close to rectangle, illustrates that this material is rendered as electric double layer effect in charge and discharge process, and bigger specific surface area is able to ensure that
It has the chemical property of excellence, and the most symmetrical cyclic curve shows that electrode charge and discharge reversibility is excellent, electrode activity material
Material utilization rate is higher, and result of calculation shows, it is up to 303.6F/g than capacitance.
In sum, the present invention prepares the flower-shaped MnO of electrochemical capacitance metal ion mixing2The method of nanometer sheet electrode material,
Preparation flow is short, efficiency is high and low cost, environmental pollution are little, the MnO prepared2Electrode material has the chemical property of excellence,
And the method reaction system is simply easily controlled, have a good application prospect.
The ultimate principle of the present invention, principal character and advantage have more than been shown and described.The technical staff of the industry should
Understanding, above-described embodiment limits the present invention the most in any form, and the mode of all employing equivalents or equivalent transformation is obtained
Technical scheme, all falls within protection scope of the present invention.
Claims (7)
1. the flower-shaped MnO of electrochemical capacitance metal ion mixing2The preparation method of nanometer sheet, it is characterised in that: include walking as follows
Rapid:
S1, compound concentration, than for the manganese sulfate of 1:1 and Ammonium persulfate. mixed aqueous solution, are placed on ultrasonic constant temp water bath
In, metal salt solution is at the uniform velocity added drop-wise in mixed solution simultaneously, continues thereafter with reaction a period of time；
S2, put in evaporating dish by after product centrifuge washing, after drying, put in humidistat and retain.
2. the flower-shaped MnO of electrochemical capacitance metal ion mixing as claimed in claim 12The preparation method of nanometer sheet, its feature exists
In: in step S1, preparation temperature is 30～60 DEG C, and the response time is 0.5～3h.
3. the flower-shaped MnO of electrochemical capacitance metal ion mixing as claimed in claim 12The preparation method of nanometer sheet, its feature exists
In: in step S1, the slaine dripped is the one in the sulfate liquor of nickel, aluminum, zinc or stannum, time for adding be 2～
5min。
4. the flower-shaped MnO of electrochemical capacitance metal ion mixing as claimed in claim 12The preparation method of nanometer sheet, its feature exists
In: in step S1, dripped metal salt solution concentration is 0.005～0.1mol/L.
5. the flower-shaped MnO of electrochemical capacitance metal ion mixing as claimed in claim 12The preparation method of nanometer sheet, its feature exists
In: in step S2, drying condition is 30～50 DEG C and is dried 2～5h, or-30 DEG C～-50 DEG C of lyophilizations 5～10h.
6. the flower-shaped MnO of electrochemical capacitance metal ion mixing as claimed in claim 12The preparation method of nanometer sheet, its feature exists
In: the MnO prepared2Nanometer sheet is self-assembled into flower-shaped.
7. the flower-shaped MnO of metal ion mixing that method described in claim 1 prepares2Nanometer sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610966685.4A CN106298272A (en) | 2016-10-28 | 2016-10-28 | A kind of electrochemical capacitance metal ion mixing flower-shaped MnO2 nanometer sheet and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610966685.4A CN106298272A (en) | 2016-10-28 | 2016-10-28 | A kind of electrochemical capacitance metal ion mixing flower-shaped MnO2 nanometer sheet and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106298272A true CN106298272A (en) | 2017-01-04 |
Family
ID=57721320
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610966685.4A Pending CN106298272A (en) | 2016-10-28 | 2016-10-28 | A kind of electrochemical capacitance metal ion mixing flower-shaped MnO2 nanometer sheet and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106298272A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107946587A (en) * | 2017-10-26 | 2018-04-20 | 陕西科技大学 | A kind of anode material of lithium-ion battery MnOxPreparation method |
| CN109065870A (en) * | 2018-08-10 | 2018-12-21 | 陕西科技大学 | It is a kind of to prepare Mo6+Adulterate δ-MnO2The method of bouquet particle |
| CN111268735A (en) * | 2020-02-12 | 2020-06-12 | 广东工业大学 | Flaky manganese dioxide and preparation method and application thereof |
| CN111653793A (en) * | 2020-04-30 | 2020-09-11 | 山东大学 | Sea urchin-shaped Ag-doped α -MnO2Catalyst material, preparation method thereof and lithium-air battery |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102730763A (en) * | 2012-06-29 | 2012-10-17 | 中国第一汽车股份有限公司 | Flower-like manganese dioxide electrode material for super-capacitor and preparation method thereof |
| CN102910680A (en) * | 2012-10-22 | 2013-02-06 | 天津大学 | Preparation method for preparing manganese dioxides in various crystal forms |
| CN103077835A (en) * | 2013-01-15 | 2013-05-01 | 上海大学 | Graphene load flower manganese dioxide (MnO2) composite material and ultrasonic synthetic method thereof |
| CN103384003A (en) * | 2013-07-23 | 2013-11-06 | 广东精进能源有限公司 | Preparation method and application of high-capacity high-temperature-resistant lithium manganate |
| CN104176782A (en) * | 2013-05-25 | 2014-12-03 | 无锡华臻新能源科技有限公司 | High-electrochemical-activity hollow flower-shaped manganese dioxide and preparation method thereof |
| CN104261479A (en) * | 2014-09-28 | 2015-01-07 | 上海第二工业大学 | Metal-doped nano manganese dioxide electrode material and preparation method thereof |
| US9133040B2 (en) * | 2011-10-28 | 2015-09-15 | Dongguk University Industry-Academic Cooperation Foundation | Method for MN3O4 nanoparticles by solid-state decomposition of exfoliated MNO2 nanosheet |
| CN105118692A (en) * | 2015-09-14 | 2015-12-02 | 南京大学 | Method for preparing SnO2-MnO2-Fe3O4 ternary composite capacitive material |
| CN105428084A (en) * | 2015-12-25 | 2016-03-23 | 南京工程学院 | Nano flocculent cobalt-manganese composite oxide electrode material and preparation method thereof |
| CN105895387A (en) * | 2014-10-10 | 2016-08-24 | 南京大学 | Spherical porous Fe3O4/MnO2 supercapacitor material and preparation method thereof |
-
2016
- 2016-10-28 CN CN201610966685.4A patent/CN106298272A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9133040B2 (en) * | 2011-10-28 | 2015-09-15 | Dongguk University Industry-Academic Cooperation Foundation | Method for MN3O4 nanoparticles by solid-state decomposition of exfoliated MNO2 nanosheet |
| CN102730763A (en) * | 2012-06-29 | 2012-10-17 | 中国第一汽车股份有限公司 | Flower-like manganese dioxide electrode material for super-capacitor and preparation method thereof |
| CN102910680A (en) * | 2012-10-22 | 2013-02-06 | 天津大学 | Preparation method for preparing manganese dioxides in various crystal forms |
| CN103077835A (en) * | 2013-01-15 | 2013-05-01 | 上海大学 | Graphene load flower manganese dioxide (MnO2) composite material and ultrasonic synthetic method thereof |
| CN104176782A (en) * | 2013-05-25 | 2014-12-03 | 无锡华臻新能源科技有限公司 | High-electrochemical-activity hollow flower-shaped manganese dioxide and preparation method thereof |
| CN103384003A (en) * | 2013-07-23 | 2013-11-06 | 广东精进能源有限公司 | Preparation method and application of high-capacity high-temperature-resistant lithium manganate |
| CN104261479A (en) * | 2014-09-28 | 2015-01-07 | 上海第二工业大学 | Metal-doped nano manganese dioxide electrode material and preparation method thereof |
| CN105895387A (en) * | 2014-10-10 | 2016-08-24 | 南京大学 | Spherical porous Fe3O4/MnO2 supercapacitor material and preparation method thereof |
| CN105118692A (en) * | 2015-09-14 | 2015-12-02 | 南京大学 | Method for preparing SnO2-MnO2-Fe3O4 ternary composite capacitive material |
| CN105428084A (en) * | 2015-12-25 | 2016-03-23 | 南京工程学院 | Nano flocculent cobalt-manganese composite oxide electrode material and preparation method thereof |
Non-Patent Citations (3)
| Title |
|---|
| BORIS I. KHARISOV: "A Review for Synthesis of Nanoflowers", 《RECENT PATENTS ON NANOTECHNOLOGY》 * |
| 田凤琴: "用于非对称超级电容器正极的锡掺杂二氧化锰的研究", 《中国优秀硕士学位论文全文数据库 工程科技Ⅱ辑》 * |
| 马琳: "用于非对称超级电容器正极的铝掺杂二氧化锰的研究", 《中国优秀硕士学位论文全文数据库 工程科技Ⅱ辑》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107946587A (en) * | 2017-10-26 | 2018-04-20 | 陕西科技大学 | A kind of anode material of lithium-ion battery MnOxPreparation method |
| CN107946587B (en) * | 2017-10-26 | 2020-05-12 | 陕西科技大学 | Sodium ion battery negative electrode material MnOxPreparation method of (1) |
| CN109065870A (en) * | 2018-08-10 | 2018-12-21 | 陕西科技大学 | It is a kind of to prepare Mo6+Adulterate δ-MnO2The method of bouquet particle |
| CN111268735A (en) * | 2020-02-12 | 2020-06-12 | 广东工业大学 | Flaky manganese dioxide and preparation method and application thereof |
| CN111653793A (en) * | 2020-04-30 | 2020-09-11 | 山东大学 | Sea urchin-shaped Ag-doped α -MnO2Catalyst material, preparation method thereof and lithium-air battery |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Gao et al. | Hierarchically porous CoFe2O4 nanosheets supported on Ni foam with excellent electrochemical properties for asymmetric supercapacitors | |
| CN101923960B (en) | Preparation method of composite electrode material using flap-like manganese dioxide nanocrystal to coat carbon nanotubes | |
| CN106876153B (en) | A kind of electrode of self supporting structure and its preparation and application | |
| CN106298272A (en) | A kind of electrochemical capacitance metal ion mixing flower-shaped MnO2 nanometer sheet and preparation method thereof | |
| CN103771524B (en) | MnO 2nano composite material and preparation method thereof | |
| CN105869916B (en) | A kind of preparation method of hydroxy cobalt oxide nanotube electrode | |
| CN103441246B (en) | The preparation method of the graphene-based tin dioxide composite material of three-dimensional N doping and application thereof | |
| CN103579638B (en) | Air electrode catalyst of lithium-air battery and preparation method thereof | |
| CN105047419B (en) | Manganese dioxide/carbon combination electrode material and preparation method thereof and ultracapacitor | |
| Zhuang et al. | Polyaniline-mediated coupling of Mn3O4 nanoparticles on activated carbon for high-performance asymmetric supercapacitors | |
| CN103545123A (en) | Hybrid energy storage device with zinc ion battery and supercapacitor | |
| CN109148903A (en) | The preparation method of the spherical carbon-based nickel cobalt bimetallic oxide composite material of 3D sea urchin | |
| CN104979105B (en) | A kind of nitrogen-doped porous carbon material, preparation method and applications | |
| CN105719850A (en) | Grapheme@polypyrrole/layer double hydroxide nanowire ternary composite and preparation method and application thereof | |
| CN105218992B (en) | sulfonated graphene metal salt solid polymer electrolyte and its preparation method and application | |
| CN107527752A (en) | A kind of preparation method of composite electrode material for super capacitor | |
| CN105702483A (en) | Paper-base polypyrrole composite film and preparation method thereof | |
| CN102030371B (en) | Preparation method of manganese dioxide nanowire with high aspect ratio | |
| CN105513829A (en) | Carbon nanotube/carbon fiber composite material and carbon-base/manganese oxide composite electrode material | |
| CN103482704B (en) | MnO2 nanosheet self-assembled nanotube and preparation method thereof | |
| CN106252091A (en) | A kind of Fe3o4/ graphene composite material and preparation method thereof | |
| CN110246705A (en) | A kind of water-keeping gel electrolyte and preparation method thereof and a kind of aqueous super capacitor and its preparation method and application | |
| Wang et al. | Robust structural stability of flower-like δ-MnO2 as cathode for aqueous zinc ion battery | |
| CN109767924A (en) | A kind of LDH based super capacitor combination electrode material and preparation method and purposes | |
| CN107513745A (en) | A kind of preparation method of the three-dimensional porous composite of graphene metal oxide |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170104 |