CN105405675A - Ag/Co(OH)<2> nano array thin film super capacitor electrode material and preparation method thereof - Google Patents
Ag/Co(OH)<2> nano array thin film super capacitor electrode material and preparation method thereof Download PDFInfo
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- CN105405675A CN105405675A CN201510736501.0A CN201510736501A CN105405675A CN 105405675 A CN105405675 A CN 105405675A CN 201510736501 A CN201510736501 A CN 201510736501A CN 105405675 A CN105405675 A CN 105405675A
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- 239000007772 electrode material Substances 0.000 title claims abstract description 46
- 238000002360 preparation method Methods 0.000 title claims abstract description 45
- 239000003990 capacitor Substances 0.000 title claims abstract description 44
- 239000010409 thin film Substances 0.000 title abstract description 7
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 66
- 239000006260 foam Substances 0.000 claims abstract description 33
- 239000000463 material Substances 0.000 claims abstract description 33
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 33
- 239000002114 nanocomposite Substances 0.000 claims abstract description 27
- 238000013019 agitation Methods 0.000 claims description 30
- 239000000243 solution Substances 0.000 claims description 28
- 239000008367 deionised water Substances 0.000 claims description 20
- 229910021641 deionized water Inorganic materials 0.000 claims description 20
- VKYKSIONXSXAKP-UHFFFAOYSA-N hexamethylenetetramine Chemical compound C1N(C2)CN3CN1CN2C3 VKYKSIONXSXAKP-UHFFFAOYSA-N 0.000 claims description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 20
- SQGYOTSLMSWVJD-UHFFFAOYSA-N silver(1+) nitrate Chemical compound [Ag+].[O-]N(=O)=O SQGYOTSLMSWVJD-UHFFFAOYSA-N 0.000 claims description 16
- 238000010438 heat treatment Methods 0.000 claims description 10
- 235000010299 hexamethylene tetramine Nutrition 0.000 claims description 10
- 239000004312 hexamethylene tetramine Substances 0.000 claims description 10
- 239000011259 mixed solution Substances 0.000 claims description 10
- 229910001961 silver nitrate Inorganic materials 0.000 claims description 8
- 238000001291 vacuum drying Methods 0.000 claims description 6
- 229910017052 cobalt Inorganic materials 0.000 claims description 4
- 239000010941 cobalt Substances 0.000 claims description 4
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 4
- 230000001413 cellular effect Effects 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims description 3
- 238000007598 dipping method Methods 0.000 claims description 2
- 239000002105 nanoparticle Substances 0.000 abstract description 2
- 230000001351 cycling effect Effects 0.000 abstract 1
- 238000002715 modification method Methods 0.000 abstract 1
- 239000010408 film Substances 0.000 description 47
- 230000004087 circulation Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 238000012360 testing method Methods 0.000 description 3
- 238000006424 Flood reaction Methods 0.000 description 2
- 238000002149 energy-dispersive X-ray emission spectroscopy Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000002250 absorbent Substances 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 239000010405 anode material Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000002322 conducting polymer Substances 0.000 description 1
- 229920001940 conductive polymer Polymers 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000005518 electrochemistry Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002389 environmental scanning electron microscopy Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000001387 multinomial test Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 229910000314 transition metal oxide Inorganic materials 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/22—Electrodes
- H01G11/30—Electrodes characterised by their material
-
- 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
-
- 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
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Nanotechnology (AREA)
- Crystallography & Structural Chemistry (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Power Engineering (AREA)
- Materials Engineering (AREA)
- Manufacture Of Metal Powder And Suspensions Thereof (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Composite Materials (AREA)
- Manufacturing & Machinery (AREA)
Abstract
The invention relates to a Ag/Co(OH)<2> nano array thin film super capacitor electrode material and a preparation method thereof. The Ag/Co(OH)<2> nano array thin film super capacitor electrode material is porous, and a Co(OH)<2> nano array directly grows on foam nickel. The preparation method of the Ag/Co(OH)<2> nano array thin film super capacitor electrode material mainly comprises preparation of directly growth of a porous Co(OH)<2> nano array thin film on the foam nickel, and a subsequent modification method of a Ag nano particle. The Ag/Co(OH)<2> nano composite material prepared in the invention has porous structure and excellent cycling stability, and is a high-performance capacitor electrode material.
Description
Technical field
The present invention relates to a kind of super capacitor anode material and preparation method thereof, specifically a kind of Ag/Co (OH)
2nano-array film electrode material for super capacitor and preparation method thereof.
Background technology
At present, the electrode material of ultracapacitor mainly contains absorbent charcoal material, conducting polymer and composite material thereof and transition metal oxide and combination electrode material thereof, but their some shortcomings of self existing.Again because ultracapacitor has the incomparable high energy density of general physical capacitor and power density, its power density also exceeds doubly a lot compared with battery, so ultracapacitor is once the great attention just obtaining people of coming out.So ultracapacitor obtains applying more and more widely in fields such as consumer electronics, communication, medicine equipment, national defence, Aero-Space, and range of application is also in continuous expansion.Therefore, other electrode material that Characteristics of Development and performance improve to some extent is the key of next step research.
Summary of the invention
The object of the invention is to: provide a kind of Ag/Co (OH)
2nano-array film electrode material for super capacitor and preparation method thereof.
To achieve these goals, the present invention adopts following technical scheme:
A kind of Ag/Co (OH)
2nano-array film electrode material for super capacitor, the Ag/Co (OH) of preparation
2become cellular, distribution of particles is even.
Preferably, described Ag/Co (OH)
2the preparation method of nano-array film electrode material for super capacitor, comprises the steps:
(1) porous α-Co (OH)
2the preparation of nano-array film
Taking a certain amount of divalent cobalt joins in deionized water, magnetic agitation 10 ~ 20 minutes; Taking a certain amount of hexamethylenetetramine joins in deionized water, magnetic agitation 10 ~ 20 minutes; After above-mentioned two kinds of solution mixing, magnetic agitation 10 ~ 30 minutes; Above-mentioned mixed solution is joined in reactor, puts the nickel foam of a slice 2*4cm simultaneously into, 90 DEG C of heating 3 ~ 6 hours, when it cools to room temperature, take out sample, be dry under the condition of 60 DEG C in temperature by sample, namely obtain porous α-Co (OH)
2nano-array film;
(2) Ag/Co (OH)
2the preparation of nano composite material
Configure a certain amount of silver nitrate and NaHB solution, by α-Co (OH) in growth
2nickel foam be impregnated in a certain amount of silver nitrate, dipping certain hour; Be impregnated into certain hour in NaHB again, repeat above-mentioned steps 2 ~ 5 times;
(3) Ag/Co (OH)
2the preparation of nano-array film electrode material for super capacitor
Growth there is Ag/Co (OH)
2the nickel foam compressing tablet of nano composite material, vacuumize a few hours, makes electrode material for super capacitor.
Preferably, the divalent cobalt in step (1) is Co (NO
3)
26H
2o.
Preferably, described Ag/Co (OH)
2the preparation method of nano-array film electrode material for super capacitor, comprises the steps:
(1) porous α-Co (OH)
2the preparation of nano-array film
Take 1 ~ 5mmolCo (NO
3)
26H
2o joins in 20 ~ 30ml deionized water, magnetic agitation 10 ~ 20 minutes; Taking 5 ~ 10mmol hexamethylenetetramine joins in 20 ~ 30ml deionized water, magnetic agitation 10 ~ 20 minutes; After above-mentioned two kinds of solution mixing, then magnetic agitation 10 ~ 30 minutes; Above-mentioned mixed solution is joined in reactor, put the nickel foam of a slice 2*4cm into simultaneously, 90 DEG C of heating 3 ~ 6 hours, when it cools to room temperature, take out sample, then dry sample is about the condition of 60 DEG C in temperature under, namely obtain porous α-Co (OH) 2 nano-array film;
(2) Ag/Co (OH)
2the preparation of nano composite material
The configuration liquor argenti nitratis ophthalmicus of 25 ~ 35mL4mmol/L and the NaHB solution of 25 ~ 35mL2mmol/L, by Co in growth (OH)
2nickel foam be impregnated into solution in silver nitrate, dip time is 0.5 ~ 2 minute; To be impregnated in NaHB solution 0.5 ~ 2 minute again; Repeat above-mentioned steps 2 ~ 3 times, namely obtain the porous α-Co (OH) that Ag modifies
2nano-array film, i.e. Ag/Co (OH)
2nano composite material;
(3) Ag/Co (OH)
2the preparation of nano-array film electrode material for super capacitor
Growth there is Ag/Co (OH)
2the nickel foam compressing tablet of nano composite material, contains with culture dish, puts into vacuum drying chamber dry 10 hours, namely obtains electrode material for super capacitor.
Preferably, porous α-Co (OH) in step (1)
2in nano-array film, preparation method is as follows: take 5mmolCo (NO
3)
26H
2o joins in 20ml deionized water, magnetic agitation 20 minutes; Taking 10mmol hexamethylenetetramine joins in 25ml deionized water, magnetic agitation 20 minutes; After above-mentioned two kinds of solution mixing, then magnetic agitation 30 minutes; Above-mentioned mixed solution is joined in reactor, puts the nickel foam of a slice 2*4cm simultaneously into, 90 DEG C of heating 5 hours, when it cools to room temperature, take out sample, be then dry under the condition of 60 DEG C in temperature by sample, namely obtain porous α-Co (OH)
2nano-array film.
Preferably, Ag/Co (OH) in step (2)
2the preparation method of nano composite material is as follows: the configuration liquor argenti nitratis ophthalmicus of 30mL4mmol/L and the NaHB solution of 30mL2mmol/L, by Co in growth (OH)
2nickel foam be impregnated into solution in silver nitrate, dip time is 1 minute; To be impregnated in NaHB solution 1 minute again; Repeat above-mentioned steps 2 ~ 3 times, namely obtain the porous α-Co (OH) that Ag modifies
2nano-array film, i.e. Ag/Co (OH)
2nano composite material.
Beneficial effect of the present invention is:
The Ag/Co (OH) that the present invention is prepared from
2nano-array film electrode material for super capacitor is class electrode material for super capacitor of good performance, and equipment of the present invention is simple simultaneously, and process conditions are easy to control.
The Ag/Co (OH) prepared by method of the present invention
2electrode material for super capacitor has excellent electric property, analyzes to obtain Ag/Co (OH) through relevant electrochemical property test
2the specific capacitance of nano-array thin-film material is up to 930.1F/g, and cycle life is longer.Desirable in low constant current charge-discharge performance, 1A/g current density through 1200 circulations, Ag/Co (OH)
2specific capacity have good maintenance, be first circulation 92.6%, and without Ag modify Co (OH)
2be 83.4%.Therefore, the Ag/Co (OH) for preparing of the method
2nano-array thin-film material has huge using value in electrode material for super capacitor field.
Accompanying drawing explanation
Porous α-the Co (OH) of Fig. 1 prepared by embodiment 1
2the XRD figure of nano-array film;
The growth of Fig. 2 (a) prepared by example 1 has porous α-Co (OH)
2the SEM figure of nano-array film nickel foam; B () growth prepared by example 1 has porous α-Co (OH)
2the SEM figure of nano-array film; C porous α-Co (OH) that () Ag prepared by embodiment 2 modifies
2nano-array film SEM schemes; D porous α-Co (OH) that () Ag prepared by embodiment 1 modifies
2nano-array film SEM schemes;
Porous α-the Co (OH) that the Ag of Fig. 3 prepared by embodiment 1 modifies
2nano-array film SEM high power figure;
Porous α-the Co (OH) that the Ag of Fig. 4 prepared by embodiment 1 modifies
2nano-array film EDAX schemes;
The CV cycle performance resolution chart of electrode of super capacitor under 10mV/s sweep speed of the different materials of Fig. 5 prepared by embodiment 1;
Fig. 6 porous α-Co (OH) that Ag modifies prepared by embodiment 1
2the CV cycle performance resolution chart of nano-array film electrode material for super capacitor under different scanning speed;
Fig. 7 porous α-Co (OH) that Ag modifies prepared by embodiment 1
2the charge-discharge performance resolution chart of nano-array film electrode material for super capacitor;
Fig. 8 porous α-Co (OH) that Ag modifies prepared by embodiment 1
2the stable circulation performance resolution chart of nano-array film electrode material for super capacitor.
Embodiment
Design of the present invention to be further described below in conjunction with accompanying drawing 1-7 and embodiment for the ease of it will be appreciated by those skilled in the art that; Meanwhile, various raw materials involved in specification, all purchased from market.
Embodiment 1
(1) porous α-Co (OH)
2the preparation of nano-array film
Take 5mmolCo (NO
3)
26H
2o joins in 20ml deionized water, magnetic agitation 20 minutes; Taking 10mmol hexamethylenetetramine joins in 25ml deionized water, magnetic agitation 20 minutes; After above-mentioned two kinds of solution mixing, then magnetic agitation 30 minutes; Above-mentioned mixed solution is joined in reactor, puts the nickel foam of a slice 2*4cm simultaneously into, 90 DEG C of heating 5 hours, when it cools to room temperature, take out sample, be then dry under the condition of 60 DEG C in temperature by sample, namely obtain porous α-Co (OH)
2nano-array film.
(2) Ag/Co (OH)
2the preparation of nano composite material
By the porous α-Co (OH) of growth in nickel foam obtained in step (1)
2nano-array film is put into and filled 30mL concentration is in the 50ml beaker of the liquor argenti nitratis ophthalmicus of 4mmol/L, flood 1 minutes, taking-up is put into and filled 30mL concentration immediately is again in the NaHB solution 50ml beaker of 2mmol, repeats above step 3 time, obtains Ag/Co (OH)
2nano composite material.
(3) Ag/Co (OH)
2the preparation of nano-array film electrode material for super capacitor
Growth there is Ag/Co (OH)
2the nickel foam compressing tablet of nano composite material, contains with culture dish, puts into vacuum drying chamber dry 10 hours, namely obtains electrode material for super capacitor.
Embodiment 2
(1) porous α-Co (OH)
2the preparation of nano-array film
Take 5mmolCo (NO
3)
26H
2o joins in 20ml deionized water, magnetic agitation 20 minutes; Taking 10mmol hexamethylenetetramine joins in 25ml deionized water, magnetic agitation 20 minutes; After above-mentioned two kinds of solution mixing, then magnetic agitation 30 minutes; Above-mentioned mixed solution is joined in reactor, puts the nickel foam of a slice 2*4cm simultaneously into, 90 DEG C of heating 5 hours, when it cools to room temperature, take out sample, be then dry under the condition of 60 DEG C in temperature by sample, namely obtain porous α-Co (OH)
2nano-array film.
(2) Ag/Co (OH)
2the preparation of nano composite material
By the porous α-Co (OH) of growth in nickel foam obtained in step (1)
2nano-array film is put into and filled 30mL concentration is in the 50ml beaker of the liquor argenti nitratis ophthalmicus of 4mmol/L, flood a minutes, take out immediately again and put that to fill 30mL concentration be in the NaHB solution 50ml beaker of 2mmol one minute into, repeat above-mentioned steps twice, obtain Ag/Co (OH)
2nano composite material.
(3) Ag/Co (OH)
2growth is had the nickel foam compressing tablet of Ag/Co (OH) 2 nano composite material by the preparation of nano-array film electrode material for super capacitor, contains with culture dish, puts into vacuum drying chamber dry 10 hours, namely obtains electrode material for super capacitor.
Embodiment 3
(1) preparation of porous α-Co (OH) 2 nano-array film
Take 1mmolCo (NO
3)
26H
2o joins in 20ml deionized water, magnetic agitation 20 minutes; Taking 5mmol hexamethylenetetramine joins in 25ml deionized water, magnetic agitation 20 minutes; After above-mentioned two kinds of solution mixing, then magnetic agitation 30 minutes; Above-mentioned mixed solution is joined in reactor, puts the nickel foam of a slice 2*4cm simultaneously into, 90 DEG C of heating 5 hours, when it cools to room temperature, take out sample, be then dry under the condition of 60 DEG C in temperature by sample, namely obtain porous α-Co (OH)
2nano-array film.
(2) Ag/Co (OH)
2the preparation of nano composite material
By the porous α-Co (OH) of growth in nickel foam obtained in step (1)
2nano-array film is put into and filled 30mL concentration is in the 50ml beaker of the liquor argenti nitratis ophthalmicus of 4mmol/L, floods 30 second time, then takes out immediately and put that to fill 30mL concentration be in the NaHB solution 50ml beaker of 2mmol 30 seconds into, obtains Ag/Co (OH)
2nano composite material.
(3) Ag/Co (OH)
2growth is had Ag/Co (OH) by the preparation of nano-array film electrode material for super capacitor
2the nickel foam compressing tablet of nano composite material, contains with culture dish, puts into vacuum drying chamber dry 10 hours, namely obtains electrode material for super capacitor.
Embodiment 4
(1) porous α-Co (OH)
2the preparation of nano-array film
Take 5mmolCo (NO
3)
26H
2o joins in 20ml deionized water, magnetic agitation 20 minutes; Taking 10mmol hexamethylenetetramine joins in 25ml deionized water, magnetic agitation 20 minutes; After above-mentioned two kinds of solution mixing, then magnetic agitation 30 minutes; Above-mentioned mixed solution is joined in reactor, puts the nickel foam of a slice 2*4cm simultaneously into, 90 DEG C of heating 5 hours, when it cools to room temperature, take out sample, be then dry under the condition of 80 DEG C in temperature by sample, namely obtain porous α-Co (OH)
2nano-array film.
(2) Ag/Co (OH)
2the preparation of nano composite material
By step 1. in the porous α-Co (OH) of growth in nickel foam that obtain
2nano-array film is put into and filled 30mL concentration is in the 50ml beaker of the liquor argenti nitratis ophthalmicus of 4mmol/L, floods a minutes, then takes out immediately and put that to fill 30mL concentration be in the NaHB solution 50ml beaker of 2mmol 30 seconds into, obtains Ag/Co (OH)
2nano composite material.
(3) Ag/Co (OH)
2growth is had Ag/Co (OH) by the preparation of nano-array film electrode material for super capacitor
2the nickel foam compressing tablet of nano composite material, contains with culture dish, puts into vacuum drying chamber dry 10 hours, namely obtains electrode material for super capacitor.
The present invention has also carried out multinomial test to embodiment 1, and test result is shown in accompanying drawing 1-8:
XRD figure as can be seen from Fig. 1: the Co (OH) that nickel foam prepared by the present invention grows
2array film material be pure phase mutually.
As can be seen from SEM and the SEM high power electromicroscopic photograph in Fig. 2 and Fig. 3, α-Co (OH)
2becoming Ag/Co (OH) through Ag is nano-particle modified
2after array film, its pattern and size have no significant change, and Ag distribution of particles is even, in cellular.
The Ag/Co (OH) that is grown directly upon in nickel foam can be shown further from the EDAX ESEM energy spectrogram Fig. 4
2array film material is not containing other impurity element.
Ag/Co (OH) under same scan speed can be found out from the CV cyclic curve Fig. 5
2area under the curve be obviously greater than Co (OH)
2, it can also be seen that from figure, Ag/Co (OH)
2the redox current of electrode is apparently higher than Co (OH)
2electrode, illustrates Ag/Co (OH)
2electrode has relatively high ratio capacitance, and Co (OH)
2the ratio capacitance of electrode is little.Image texture Ag/Co (OH)
2capacitive characteristics and the electric double layer capacitance of electrode have obviously different, and the CV curve of electric double layer capacitance is close to desirable rectangle.
Fig. 6 is to Ag/Co (OH)
2electrode material for super capacitor carries out the CV test under different scanning speed, as can be seen from the figure, and Ag/Co (OH)
2array film reveals very strong capacitance characteristic.The reversible process of electro transfer is obviously visible in curve, and the CV curve shape under different scanning speed changes little, and invertibity is better.
As can be seen from Fig. 7 and Fig. 8, electrode material after compound has obvious fake capacitance characteristic, most high specific capacitance can reach 930.1F/g, and still can high ratio capacitance be ensured after the charge and discharge cycles of 1200 times, decay less, have extended cycle life, through 1200 circulations under 1A/g current density, Ag/Co (OH)
2specific capacity have good maintenance, be first circulation 92.6%, and without Ag modify Co (OH)
2be 83.4%, Ag/Co (OH) is described
2the electrochemistry combination property of electrode material is good.
Claims (6)
1. an Ag/Co (OH)
2nano-array film electrode material for super capacitor, is characterized in that, the Ag/Co (OH) of preparation
2become cellular, distribution of particles is even.
2. an Ag/Co according to claim 1 (OH)
2the preparation method of nano-array film electrode material for super capacitor, is characterized in that, comprise the steps:
(1) porous α-Co (OH)
2the preparation of nano-array film
Taking a certain amount of divalent cobalt joins in deionized water, magnetic agitation 10 ~ 20 minutes; Taking a certain amount of hexamethylenetetramine joins in deionized water, magnetic agitation 10 ~ 20 minutes; After above-mentioned two kinds of solution mixing, magnetic agitation 10 ~ 30 minutes; Above-mentioned mixed solution is joined in reactor, puts the nickel foam of a slice 2*4cm simultaneously into, 90 DEG C of heating 3 ~ 6 hours, when it cools to room temperature, take out sample, be dry under the condition of 60 DEG C in temperature by sample, namely obtain porous α-Co (OH)
2nano-array film;
(2) Ag/Co (OH)
2the preparation of nano composite material
Configure a certain amount of silver nitrate and NaHB solution, by α-Co (OH) in growth
2nickel foam be impregnated in a certain amount of silver nitrate, dipping certain hour; Be impregnated into certain hour in NaHB again, repeat above-mentioned steps 2 ~ 5 times;
(3) Ag/Co (OH)
2the preparation of nano-array film electrode material for super capacitor
Growth there is Ag/Co (OH)
2the nickel foam compressing tablet of nano composite material, vacuumize a few hours, makes electrode material for super capacitor.
3. Ag/Co according to claim 2 (OH)
2the preparation method of nano-array film electrode material for super capacitor, is characterized in that, the divalent cobalt in step (1) is Co (NO
3)
26H
2o.
4. Ag/Co according to claim 3 (OH)
2the preparation method of nano-array film electrode material for super capacitor, is characterized in that, comprise the steps:
(1) porous α-Co (OH)
2the preparation of nano-array film
Take 1 ~ 5mmolCo (NO
3)
26H
2o joins in 20 ~ 30ml deionized water, magnetic agitation 10 ~ 20 minutes; Taking 5 ~ 10mmol hexamethylenetetramine joins in 20 ~ 30ml deionized water, magnetic agitation 10 ~ 20 minutes; After above-mentioned two kinds of solution mixing, then magnetic agitation 10 ~ 30 minutes; Above-mentioned mixed solution is joined in reactor, put the nickel foam of a slice 2*4cm into simultaneously, 90 DEG C of heating 3 ~ 6 hours, when it cools to room temperature, take out sample, then dry sample is about the condition of 60 DEG C in temperature under, namely obtain porous α-Co (OH) 2 nano-array film;
(2) Ag/Co (OH)
2the preparation of nano composite material
The configuration liquor argenti nitratis ophthalmicus of 25 ~ 35mL4mmol/L and the NaHB solution of 25 ~ 35mL2mmol/L, by Co in growth (OH)
2nickel foam be impregnated into solution in silver nitrate, dip time is 0.5 ~ 2 minute; To be impregnated in NaHB solution 0.5 ~ 2 minute again; Repeat above-mentioned steps 2 ~ 3 times, namely obtain the porous α-Co (OH) that Ag modifies
2nano-array film, i.e. Ag/Co (OH)
2nano composite material;
(3) Ag/Co (OH)
2the preparation of nano-array film electrode material for super capacitor
Growth there is Ag/Co (OH)
2the nickel foam compressing tablet of nano composite material, contains with culture dish, puts into vacuum drying chamber dry 10 hours, namely obtains electrode material for super capacitor.
5. Ag/Co according to claim 4 (OH)
2the preparation method of nano-array film electrode material for super capacitor, is characterized in that: porous α-Co (OH) in step (1)
2in nano-array film, preparation method is as follows: take 5mmolCo (NO
3)
26H
2o joins in 20ml deionized water, magnetic agitation 20 minutes; Taking 10mmol hexamethylenetetramine joins in 25ml deionized water, magnetic agitation 20 minutes; After above-mentioned two kinds of solution mixing, then magnetic agitation 30 minutes; Above-mentioned mixed solution is joined in reactor, puts the nickel foam of a slice 2*4cm simultaneously into, 90 DEG C of heating 5 hours, when it cools to room temperature, take out sample, be then dry under the condition of 60 DEG C in temperature by sample, namely obtain porous α-Co (OH)
2nano-array film.
6. Ag/Co according to claim 4 (OH)
2the preparation method of nano-array film electrode material for super capacitor, is characterized in that: Ag/Co (OH) in step (2)
2the preparation method of nano composite material is as follows: the configuration liquor argenti nitratis ophthalmicus of 30mL4mmol/L and the NaHB solution of 30mL2mmol/L, by Co in growth (OH)
2nickel foam be impregnated into solution in silver nitrate, dip time is 1 minute; To be impregnated in NaHB solution 1 minute again; Repeat above-mentioned steps 2 ~ 3 times, namely obtain the porous α-Co (OH) that Ag modifies
2nano-array film, i.e. Ag/Co (OH)
2nano composite material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510736501.0A CN105405675B (en) | 2015-11-02 | 2015-11-02 | A kind of Ag/Co (OH)2Nano-array film electrode material for super capacitor and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN105655143A (en) * | 2016-04-11 | 2016-06-08 | 中国工程物理研究院材料研究所 | Metal/amorphous nickel-cobalt hydroxide composite electrode for super capacitor and preparation method thereof |
| CN105957726A (en) * | 2016-06-30 | 2016-09-21 | 安徽大学 | Preparation method of Co(OH)2 material capable of regulating and controlling different phases in magnetic field and application thereof |
| CN108654640A (en) * | 2018-03-15 | 2018-10-16 | 安徽师范大学 | Cobalt hydroxide material of Ag doping and its preparation method and application |
| CN110797205A (en) * | 2019-10-29 | 2020-02-14 | 江苏大学 | α -cobalt hydroxide/cobalt selenide heterostructure electrode material, electrode, all-solid-state planar micro supercapacitor and preparation method |
| CN113134361A (en) * | 2021-03-30 | 2021-07-20 | 江苏大学 | Ag/alpha-Co (OH)2Preparation method of oxygen evolution catalyst |
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| CN104226330A (en) * | 2013-06-07 | 2014-12-24 | 北京化工大学 | Au/Co(OH)2 nano-array structured catalyst |
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| CN104226330A (en) * | 2013-06-07 | 2014-12-24 | 北京化工大学 | Au/Co(OH)2 nano-array structured catalyst |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105655143A (en) * | 2016-04-11 | 2016-06-08 | 中国工程物理研究院材料研究所 | Metal/amorphous nickel-cobalt hydroxide composite electrode for super capacitor and preparation method thereof |
| CN105655143B (en) * | 2016-04-11 | 2018-08-14 | 中国工程物理研究院材料研究所 | A kind of preparation method of ultracapacitor metal/amorphous nickel cobalt hydroxide combination electrode |
| CN105957726A (en) * | 2016-06-30 | 2016-09-21 | 安徽大学 | Preparation method of Co(OH)2 material capable of regulating and controlling different phases in magnetic field and application thereof |
| CN108654640A (en) * | 2018-03-15 | 2018-10-16 | 安徽师范大学 | Cobalt hydroxide material of Ag doping and its preparation method and application |
| CN110797205A (en) * | 2019-10-29 | 2020-02-14 | 江苏大学 | α -cobalt hydroxide/cobalt selenide heterostructure electrode material, electrode, all-solid-state planar micro supercapacitor and preparation method |
| CN113134361A (en) * | 2021-03-30 | 2021-07-20 | 江苏大学 | Ag/alpha-Co (OH)2Preparation method of oxygen evolution catalyst |
| CN113134361B (en) * | 2021-03-30 | 2023-08-25 | 江苏大学 | Ag/alpha-Co (OH) 2 Preparation method of oxygen evolution catalyst |
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| CN105405675B (en) | 2018-03-23 |
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