CN109637834A - A kind of cobalt molybdenum sulphide/graphene composite material of the morphology controllable for supercapacitor and preparation method thereof - Google Patents
A kind of cobalt molybdenum sulphide/graphene composite material of the morphology controllable for supercapacitor and preparation method thereof Download PDFInfo
- Publication number
- CN109637834A CN109637834A CN201811292190.3A CN201811292190A CN109637834A CN 109637834 A CN109637834 A CN 109637834A CN 201811292190 A CN201811292190 A CN 201811292190A CN 109637834 A CN109637834 A CN 109637834A
- Authority
- CN
- China
- Prior art keywords
- rgo
- graphene
- supercapacitor
- composite material
- ratio
- 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.)
- Withdrawn
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
-
- 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
- H01G11/24—Electrodes characterised by structural features of the materials making up or comprised in the electrodes, e.g. form, surface area or porosity; characterised by the structural features of powders or particles used therefor
-
- 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
- H01G11/36—Nanostructures, e.g. nanofibres, nanotubes or fullerenes
-
- 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
A kind of cobalt molybdenum sulphide/graphene composite material of the morphology controllable for supercapacitor and preparation method thereof, belong to energy storage material technical field, existing homogenous material can be solved as electrode material and be applied to the problems in supercapacitor, the chemical general formula of composite material is CoMoS-x@RGO/NF, is put into configured Na for the nickel foam for wrapping up redox graphene as collector2MoO4·2H2O and Co (NO3)2·6H2Hydro-thermal reaction obtains composite material CoMoO in O solution4@rGO/NF is carried out hydro-thermal and vulcanizes to obtain cobalt molybdenum sulphide/graphene composite material.Preparation method of the invention is simple, easily controllable, low in cost, prepared electrode material specific capacitance with higher, good high rate performance and cyclical stability, when device is made, high power density and energy density are shown, can be used as excellent electrode material for super capacitor.
Description
Technical field
The invention belongs to energy storage material technical fields, and in particular to a kind of cobalt molybdenum of the morphology controllable for supercapacitor
Sulfide/graphene composite material and preparation method thereof.
Background technique
Energy and environmental problem is the two big outstanding problems that current human society faces, continuous aggravating circumstances and fossil
The exhaustive exploitation of fuel promotes scientists to develop energy conversion apparatus, with efficiently using new, clean, reproducible and
Sustainable energy resources.Traditional lead storage battery have energy density is low, service life is short, production when may have Lead pollution environment
Etc. inevitable problem；The limitation that secondary lithium battery also has its intrinsic, although it is with ideal energy density,
High power density cannot be provided；And traditional capacitor has ideal applicable high power density, but energy density very little.
Supercapacitor (also known as electrochemical capacitor) is used as a kind of novel energy storage apparatus, due to its power density height, fills
Many advantages, such as discharge rate is fast, no pollution to the environment and good cyclical stability, occupies importantly in new energy resources system
Position.The performance of supercapacitor depends primarily on electrode material.The electrode material for super capacitor studied at present specifically includes that double
Electric layer carbon-based material and fake capacitance material (transistion metal compound and conducting polymer).Carbon material is due to its preferable stability
And it is widely used as super capacitor material, however lower specific energy becomes the crucial effect of limitation carbon material development.It crosses
Metal sulfide is crossed because its theoretical specific capacitance is high, and is widely used in the research of supercapacitor fake capacitance material.However
Since the structure of metal sulfide electrode material under normal circumstances is crystal, it is unfavorable for diffusion, the infiltration of electrolyte ion, so that
Electrode material cannot be contacted effectively with electrolyte ion, and which results in the electric conductivity of metal sulfide electrode material ratios
It is poor, thus the chemical property of material especially high rate performance and cycle performance are not special ideal.
Summary of the invention
The present invention is applied to the problems in supercapacitor as electrode material for existing homogenous material, provides a kind of use
In cobalt molybdenum sulphide/graphene composite material of morphology controllable and preparation method thereof of supercapacitor.
The present invention adopts the following technical scheme:
A kind of cobalt molybdenum sulphide/graphene composite material of the morphology controllable for supercapacitor, chemical general formula CoMoS-
X@RGO/NF, wherein x indicates vulcanization reaction time, value 1-7.
A kind of cobalt molybdenum sulphide/graphene composite material preparation method of the morphology controllable for supercapacitor, packet
Include following steps:
The first step, chemical deposition grow redox graphene in foam nickel base: according to the matter of graphene oxide and water
The ratio that volume ratio is 1mg:2mL to be measured, is added graphene oxide into deionized water, ultrasonic disperse obtains the dispersion liquid of brown,
The ratio for being 1:5 according to the mass ratio of graphene oxide and reducing agent, reducing agent is added into dispersion liquid, after mixing evenly, obtains
To mixed solution A, will be immersed into mixed solution A with the foam nickel base of acetone, hydrochloric acid, washes of absolute alcohol, 90 DEG C of conditions
Under, after hydro-thermal bath reduction 6h, foam nickel base is taken out, residue is rinsed, is placed in baking oven, under the conditions of 70 DEG C, dry 12h is obtained
There is the foam nickel base of redox graphene to growth, is denoted as rGO/NF；
Second step grows molybdenum cobalt/cobalt oxide using hydro-thermal method in the foam nickel base that growth has redox graphene: will
Na2MoO4·2H2O and Co (NO3)2·6H2The ratio that O is 1:1 according to molar ratio, is dissolved in deionized water, after mixing evenly,
Mixed solution B is obtained, mixed solution B is transferred in reaction kettle, the compactedness of reaction kettle is 60%, and rGO/NF is put into reaction
Kettle after keeping 5h under the conditions of 160 DEG C, takes out cleaning, obtains composite material CoMoO4@rGO/NF；
Third step, hydro-thermal method vulcanize CoMoO4@rGO/NF: according to Na2S·9H2The molal volume of O and deionized water ratio is
The ratio of 1mmol:30mL, by Na2S·9H2O is dissolved in deionized water, after stirring and dissolving, is transferred in reaction kettle, reaction kettle
Compactedness be 60%, by CoMoO4@rGO/NF is put into reaction kettle, and 1-7h is kept under the conditions of 120 DEG C, is taken out and is cleaned and dried
Afterwards, cobalt molybdenum sulphide/graphene composite material that chemical general formula is CoMoS-x@RGO/NF is obtained, CMS-x@RGO/NF is denoted as.
Reducing agent described in the first step is ascorbic acid.
Beneficial effects of the present invention are as follows:
Graphene is as a kind of novel carbon material, the theoretical surface with superelevation, applies high in advanced composite material (ACM), building
In terms of performance electrochemistry new energy devices, in conjunction with the characteristic of both cobalt molybdenum sulphide and graphene, the composite material conduct of preparation
The electrode material of supercapacitor can not only realize the reasonable utilization of material property and cost, and have homogenous material institute
The excellent performance not having, application prospect are very extensive.
Vulcanization time has apparent influence to the microscopic appearance of composite material and supercapacitor specific capacitance in the present invention.Sulphur
When changing reaction 3h, prepared cobalt molybdenum sulphide has good microcosmic flower-like structure, the positive electrode as supercapacitor
When have maximum 2530 F g of specific capacitance-1；In addition, using cobalt molybdenum sulphide/redox graphene as device anode material
The energy density for the ultracapacitor device expect, being assembled into using active carbon as negative electrode material is up to 59Whkg-1, excellent
Performance can be used as electrode material applied to the fields such as supercapacitor and lithium ion battery.
Detailed description of the invention
Fig. 1 is the CoMoO that the embodiment of the present invention 1 is obtained to embodiment 54Prepared by@rGO/NF and different vulcanization times
The XRD curve of CMS-x@RGO/NF composite material.
Fig. 2 is the CoMoO that the embodiment of the present invention 1 is obtained to embodiment 54Prepared by@rGO/NF and different vulcanization times
The field emission scanning electron microscope figure of CMS-x@RGO/NF composite material, wherein a CoMoO4@rGO/NF；B is CMS-1@RGO/NF；
C is CMS-3@RGO/NF；D is CMS-5@RGO/NF；E is CMS-7@RGO/NF.
Fig. 3 is volt-ampere of the electrode material in the KOH solution of 2mol/L prepared by the embodiment of the present invention 1 to embodiment 5
Cyclic curve figure.
Fig. 4 is constant current of the electrode material in the KOH solution of 2mol/L prepared by the embodiment of the present invention 1 to embodiment 5
Charging and discharging curve figure.
Fig. 5 is energy density-saturation effect corresponding to the ultracapacitor device of the preparation of the embodiment of the present invention 6
Figure.
Specific embodiment
Detection, analysis and characterization can be carried out to the microstructure electrochemistry of the composite material of preparation:
Microscopic examination is carried out with MIRA3 type scanning electron microscope；
Electrochemical property test is carried out with CHI660E electrochemical workstation.
Embodiment 1
By 10mg graphene oxide ultrasonic decomposition in 20mL distilled water, after uniform brown solution to be formed, it is anti-that 50mg is added
Bad hematic acid will be placed in dispersion liquid after ultrasonic agitation is uniform with the clean nickel foam of acetone, hydrochloric acid, washes of absolute alcohol, and
It is deposited 6 hours under the conditions of 90 DEG C of water-bath, with deionized water lavage specimens product surface, dry 12 h are obtained under the conditions of being placed in 70 DEG C
To rGO/NF.
By 2mmolNa2MoO4·2H2O and 2 mmol Co (NO3)2·6H2O mixed dissolution stirs in 60mL deionized water
It is transferred in reaction kettle after mixing uniformly, and rGO/NF is put into wherein, 5 hours are kept under the conditions of 160 DEG C, use deionized water
Sample surfaces are rinsed, 60 DEG C of 12 h of drying are placed in.
By prepared CoMoO4@rGO/NF composite material is denoted as positive electrode of the CMO@RGO/NF as supercapacitor
Electrochemical property test is carried out in three-electrode system (KOH that electrolyte is 2 mol/L), specific capacitance is 959 F g-1。
Embodiment 2
By 2mmoL Na2S·9H2O is dissolved in 60 mL deionized waters, is transferred in reaction kettle after stirring and dissolving, and by embodiment
Obtained CoMoO in 14@rGO/NF is put into wherein, 1 hour is kept under the conditions of 120 DEG C, with deionized water lavage specimens product
Surface, be placed in 60 DEG C it is drying over night.
Prepared compound is named as CMS-1@RGO/NF, and the positive electrode as supercapacitor is in three electrodes
Electrochemical property test is carried out in system (KOH that electrolyte is 2 mol/L), specific capacitance is 2376 F g-1。
Embodiment 3
By 2mmoL Na2S·9H2O is dissolved in 60 mL deionized waters, is transferred in reaction kettle after stirring and dissolving, and by embodiment
Obtained CoMoO in 14@rGO/NF is put into wherein, 3 hours is kept under the conditions of 120 DEG C, with deionized water lavage specimens product
Surface, be placed in 60 DEG C it is drying over night.
Prepared compound is named as CMS-3@RGO/NF, and the positive electrode as supercapacitor is in three electrodes
Electrochemical property test is carried out in system (KOH that electrolyte is 2 mol/L), specific capacitance is 2530 F g-1。
Embodiment 4
By 2mmoL Na2S·9H2O is dissolved in 60 mL deionized waters, is transferred in reaction kettle after stirring and dissolving, and by embodiment
Obtained CoMoO in 14@rGO/NF is put into wherein, 5 hours is kept under the conditions of 120 DEG C, with deionized water lavage specimens product
Surface, be placed in 60 DEG C it is drying over night.
Prepared compound is named as CMS-5@RGO/NF, and the positive electrode as supercapacitor is in three electrodes
Electrochemical property test is carried out in system (KOH that electrolyte is 2 mol/L), specific capacitance is 1889 F g-1。
Embodiment 5
By 2mmoL Na2S·9H2O is dissolved in 60 mL deionized waters, is transferred in reaction kettle after stirring and dissolving, and by embodiment
Obtained CoMoO in 14@rGO/NF is put into wherein, 7 hours is kept under the conditions of 120 DEG C, with deionized water lavage specimens product
Surface, be placed in 60 DEG C it is drying over night.
Prepared compound is named as CMS-7@RGO/NF, and the positive electrode as supercapacitor is in three electrodes
Electrochemical property test is carried out in system (KOH that electrolyte is 2 mol/L), specific capacitance is 1419 F g-1。
Embodiment 6
The ratio that acetylene black, active carbon, Kynoar are 8:1:1 in mass ratio is mixed, is applied to foam after grinding uniformly
On nickel, it is used as negative electrode material after 60 DEG C of 12 h of drying, is assembled into using cobalt molybdenum sulphide/graphene composite material as positive electrode
Asymmetric Supercapacitor device, and electrochemical property test is carried out to it；
Prepared supercapacitor symmetrical device is 640 W kg in power density-1When show up to 59Wh kg-1's
Energy density.
Claims (3)
1. a kind of cobalt molybdenum sulphide/graphene composite material of morphology controllable for supercapacitor, it is characterised in that: this is multiple
The chemical general formula of condensation material is CoMoS-x@RGO/NF, and wherein x indicates vulcanization reaction time, value 1-7.
2. a kind of a kind of cobalt molybdenum sulphide/graphene of the morphology controllable for supercapacitor as described in claim 1 is multiple
The preparation method of condensation material, characterized by the following steps:
The first step, chemical deposition grow redox graphene in foam nickel base: according to the matter of graphene oxide and water
The ratio that volume ratio is 1mg:2mL to be measured, is added graphene oxide into deionized water, ultrasonic disperse obtains the dispersion liquid of brown,
The ratio for being 1:5 according to the mass ratio of graphene oxide and reducing agent, reducing agent is added into dispersion liquid, after mixing evenly, obtains
To mixed solution A, will be immersed into mixed solution A with the foam nickel base of acetone, hydrochloric acid, washes of absolute alcohol, 90 DEG C of conditions
Under, after hydro-thermal bath reduction 6h, foam nickel base is taken out, residue is rinsed, is placed in baking oven, under the conditions of 70 DEG C, dry 12h is obtained
There is the foam nickel base of redox graphene to growth, is denoted as rGO/NF；
Second step grows molybdenum cobalt/cobalt oxide using hydro-thermal method in the foam nickel base that growth has redox graphene: will
Na2MoO4·2H2O and Co (NO3)2·6H2The ratio that O is 1:1 according to molar ratio, is dissolved in deionized water, after mixing evenly,
Mixed solution B is obtained, mixed solution B is transferred in reaction kettle, the compactedness of reaction kettle is 60%, and rGO/NF is put into reaction
Kettle after keeping 5h under the conditions of 160 DEG C, takes out cleaning, obtains composite material CoMoO4@rGO/NF；
Third step, hydro-thermal method vulcanize CoMoO4@rGO/NF: according to Na2S·9H2The molal volume of O and deionized water ratio is
The ratio of 1mmol:30mL, by Na2S·9H2O is dissolved in deionized water, after stirring and dissolving, is transferred in reaction kettle, reaction kettle
Compactedness be 60%, by CoMoO4@rGO/NF is put into reaction kettle, and 1-7h is kept under the conditions of 120 DEG C, is taken out and is cleaned and dried
Afterwards, cobalt molybdenum sulphide/graphene composite material that chemical general formula is CoMoS-x@RGO/NF is obtained, CMS-x@RGO/NF is denoted as.
3. a kind of cobalt molybdenum sulphide/graphene of morphology controllable for supercapacitor according to claim 1 is compound
The preparation method of material, it is characterised in that: reducing agent described in the first step is ascorbic acid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811292190.3A CN109637834A (en) | 2018-11-01 | 2018-11-01 | A kind of cobalt molybdenum sulphide/graphene composite material of the morphology controllable for supercapacitor and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811292190.3A CN109637834A (en) | 2018-11-01 | 2018-11-01 | A kind of cobalt molybdenum sulphide/graphene composite material of the morphology controllable for supercapacitor and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109637834A true CN109637834A (en) | 2019-04-16 |
Family
ID=66067154
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811292190.3A Withdrawn CN109637834A (en) | 2018-11-01 | 2018-11-01 | A kind of cobalt molybdenum sulphide/graphene composite material of the morphology controllable for supercapacitor and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109637834A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110148527A (en) * | 2019-04-30 | 2019-08-20 | 河北科技大学 | Preparation method of cobalt molybdenum sulfide electrode material for super capacitor |
| CN110853931A (en) * | 2019-11-01 | 2020-02-28 | 河北科技大学 | Synthesis method of cobalt-molybdenum bimetallic sulfide for supercapacitor electrode material |
| CN111048325A (en) * | 2019-12-03 | 2020-04-21 | 太原理工大学 | Morphology-controllable nickel manganese sulfide/graphene composite material used as supercapacitor and preparation method thereof |
| CN111146008A (en) * | 2019-12-03 | 2020-05-12 | 太原理工大学 | Manganese molybdenum sulfide/graphene composite electrode material used as supercapacitor and preparation method thereof |
| CN111437840A (en) * | 2020-05-22 | 2020-07-24 | 辽宁大学 | 3D hierarchical flower-like MoS2@CoMoS4Z-type heterostructure photoelectric catalyst and preparation method and application thereof |
| CN111899981A (en) * | 2020-06-30 | 2020-11-06 | 太原理工大学 | Cobalt molybdate nanosheet array electrode material taking three-dimensional graphene foam as substrate, and preparation method and application thereof |
| CN112981431A (en) * | 2021-02-04 | 2021-06-18 | 哈尔滨工业大学 | Preparation method and application of integrated anode for hydrogen production by water electrolysis |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106504907A (en) * | 2016-12-02 | 2017-03-15 | 东华大学 | A kind of molybdenum sulfide/cobaltosic oxide composite material and its preparation method and application |
| CN107904620A (en) * | 2017-10-23 | 2018-04-13 | 温州大学 | A kind of three-dimensional grapheme/carbon nanotubes base molybdenum disulfide/vulcanization cobalt composite material elctro-catalyst and its preparation method and application |
-
2018
- 2018-11-01 CN CN201811292190.3A patent/CN109637834A/en not_active Withdrawn
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106504907A (en) * | 2016-12-02 | 2017-03-15 | 东华大学 | A kind of molybdenum sulfide/cobaltosic oxide composite material and its preparation method and application |
| CN107904620A (en) * | 2017-10-23 | 2018-04-13 | 温州大学 | A kind of three-dimensional grapheme/carbon nanotubes base molybdenum disulfide/vulcanization cobalt composite material elctro-catalyst and its preparation method and application |
Non-Patent Citations (1)
| Title |
|---|
| JING YANG,ET AL.: ""Formation of a Flower-Like Co-Mo-S on Reduced Graphene Oxide Composite on Nickel Foam with Enhanced Electrochemical Capacitive Properties"", 《CHEMELECTROCHEM》 * |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110148527A (en) * | 2019-04-30 | 2019-08-20 | 河北科技大学 | Preparation method of cobalt molybdenum sulfide electrode material for super capacitor |
| CN110853931A (en) * | 2019-11-01 | 2020-02-28 | 河北科技大学 | Synthesis method of cobalt-molybdenum bimetallic sulfide for supercapacitor electrode material |
| CN111048325A (en) * | 2019-12-03 | 2020-04-21 | 太原理工大学 | Morphology-controllable nickel manganese sulfide/graphene composite material used as supercapacitor and preparation method thereof |
| CN111146008A (en) * | 2019-12-03 | 2020-05-12 | 太原理工大学 | Manganese molybdenum sulfide/graphene composite electrode material used as supercapacitor and preparation method thereof |
| CN111437840A (en) * | 2020-05-22 | 2020-07-24 | 辽宁大学 | 3D hierarchical flower-like MoS2@CoMoS4Z-type heterostructure photoelectric catalyst and preparation method and application thereof |
| CN111437840B (en) * | 2020-05-22 | 2021-10-22 | 辽宁大学 | 3D hierarchical flower-like MoS2@CoMoS4Z-type heterostructure photoelectric catalyst and preparation method and application thereof |
| CN111899981A (en) * | 2020-06-30 | 2020-11-06 | 太原理工大学 | Cobalt molybdate nanosheet array electrode material taking three-dimensional graphene foam as substrate, and preparation method and application thereof |
| CN112981431A (en) * | 2021-02-04 | 2021-06-18 | 哈尔滨工业大学 | Preparation method and application of integrated anode for hydrogen production by water electrolysis |
| CN112981431B (en) * | 2021-02-04 | 2022-05-06 | 哈尔滨工业大学 | Preparation method and application of integrated anode for hydrogen production by water electrolysis |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109637834A (en) | A kind of cobalt molybdenum sulphide/graphene composite material of the morphology controllable for supercapacitor and preparation method thereof | |
| CN103440998B (en) | A kind of cobalt acid zinc nanometer sheet array/nickel foam combination electrode, preparation method and application thereof | |
| Wu et al. | PbO2-modified graphite felt as the positive electrode for an all-vanadium redox flow battery | |
| Luo et al. | High capacitive performance of nanostructured Mn–Ni–Co oxide composites for supercapacitor | |
| CN105023768B (en) | Ni-based nickel oxide electrode material of foam and preparation method thereof | |
| CN104576082B (en) | Two pole rooms add the potassium ferricyanide and potassium ferrocyanide Asymmetric Supercapacitor and preparation method thereof respectively | |
| CN104835963B (en) | Lithium ion battery composite anode material and preparation method thereof | |
| CN103426649A (en) | Preparation method for different carbon fibers / cobalt hydroxide electrode and solid-liquid composite electrode system | |
| CN106571248B (en) | It is a kind of to adulterate ZnO-SnO by the Se of substrate of nickel foam2The preparation method of electrode material for super capacitor | |
| Wen et al. | Three-dimensional hierarchical NiCo hydroxide@ Ni3S2 nanorod hybrid structure as high performance positive material for asymmetric supercapacitor | |
| CN113130214B (en) | NF @ molybdenum oxide @ nickel cobalt-LDH composite material and preparation method and application thereof | |
| CN108400023A (en) | A kind of three-dimensional nitrogen-doped carbon foam combination electrode material and preparation method thereof | |
| CN111048325A (en) | Morphology-controllable nickel manganese sulfide/graphene composite material used as supercapacitor and preparation method thereof | |
| Tian et al. | Defects engineering of Fe2O3@ Sn2O3 nanosheet arrays for high-performance hybrid supercapacitor | |
| CN109390162A (en) | A kind of manganese cobalt sulfide/redox graphene composite material and preparation method with excellent electrochemical performance | |
| CN111146016A (en) | Flaky nickel sulfide/nickel-vanadium double hydroxide/graphene composite material for super capacitor and preparation method thereof | |
| CN113314350A (en) | Ternary nickel-cobalt-iron double hydroxide electrode material, preparation method and supercapacitor | |
| CN111268745A (en) | NiMoO4@Co3O4Core-shell nano composite material, preparation method and application | |
| CN108281292B (en) | Preparation method and application of Ni-Co-S nanoneedle array | |
| CN110380047A (en) | A kind of symmetric form water system sodium-ion battery | |
| CN111816453B (en) | Three-dimensional silicon structure/nickel-cobalt hydroxide based composite electrode material and preparation method thereof | |
| CN109216042A (en) | A kind of cobalt aluminium double-hydroxide/redox graphene composite material and preparation method of morphology controllable | |
| CN103107307A (en) | Water-solution lithium ion battery negative pole material and preparation method thereof | |
| CN111146008A (en) | Manganese molybdenum sulfide/graphene composite electrode material used as supercapacitor and preparation method thereof | |
| CN111986929A (en) | Preparation method of cobalt manganate/nickel sulfide core-shell array structure electrode material |
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 | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20190416 |