CN110060875A - Co-based nanosheet array electrode for supercapacitor and preparation method thereof - Google Patents
Co-based nanosheet array electrode for supercapacitor and preparation method thereof Download PDFInfo
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- CN110060875A CN110060875A CN201910356369.9A CN201910356369A CN110060875A CN 110060875 A CN110060875 A CN 110060875A CN 201910356369 A CN201910356369 A CN 201910356369A CN 110060875 A CN110060875 A CN 110060875A
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- 238000002360 preparation method Methods 0.000 title claims abstract description 25
- 239000002135 nanosheet Substances 0.000 title abstract 4
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 claims abstract description 18
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 claims abstract description 18
- 238000006243 chemical reaction Methods 0.000 claims abstract description 12
- 238000001027 hydrothermal synthesis Methods 0.000 claims abstract description 10
- 238000003491 array Methods 0.000 claims description 55
- 229910052799 carbon Inorganic materials 0.000 claims description 21
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 20
- 239000004744 fabric Substances 0.000 claims description 20
- 239000000463 material Substances 0.000 claims description 15
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 12
- 239000011259 mixed solution Substances 0.000 claims description 10
- 238000003756 stirring Methods 0.000 claims description 9
- 238000001035 drying Methods 0.000 claims description 8
- 238000002156 mixing Methods 0.000 claims description 7
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 6
- 235000019441 ethanol Nutrition 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 239000008367 deionised water Substances 0.000 claims description 3
- 229910021641 deionized water Inorganic materials 0.000 claims description 3
- 239000000243 solution Substances 0.000 claims description 3
- 239000002070 nanowire Substances 0.000 claims description 2
- 238000004140 cleaning Methods 0.000 claims 1
- 239000003990 capacitor Substances 0.000 abstract description 9
- 239000002994 raw material Substances 0.000 abstract description 6
- 230000002441 reversible effect Effects 0.000 abstract description 4
- ABMFBCRYHDZLRD-UHFFFAOYSA-N naphthalene-1,4-dicarboxylic acid Chemical compound C1=CC=C2C(C(=O)O)=CC=C(C(O)=O)C2=C1 ABMFBCRYHDZLRD-UHFFFAOYSA-N 0.000 abstract 1
- 239000002904 solvent Substances 0.000 abstract 1
- 239000004094 surface-active agent Substances 0.000 abstract 1
- 238000012360 testing method Methods 0.000 description 11
- 238000001514 detection method Methods 0.000 description 6
- 238000009826 distribution Methods 0.000 description 6
- 239000007772 electrode material Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 230000005611 electricity Effects 0.000 description 5
- 238000004146 energy storage Methods 0.000 description 5
- 238000002484 cyclic voltammetry Methods 0.000 description 4
- 238000000862 absorption spectrum Methods 0.000 description 3
- 238000005452 bending Methods 0.000 description 3
- 239000006258 conductive agent Substances 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000011056 performance test Methods 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 239000011149 active material Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 238000013112 stability test Methods 0.000 description 2
- 238000004506 ultrasonic cleaning Methods 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 229910021607 Silver chloride Inorganic materials 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 239000007767 bonding agent Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000001351 cycling effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 239000008151 electrolyte solution Substances 0.000 description 1
- 239000012776 electronic material Substances 0.000 description 1
- 244000144992 flock Species 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000003446 ligand Substances 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000002905 metal composite material Substances 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- HKZLPVFGJNLROG-UHFFFAOYSA-M silver monochloride Chemical compound [Cl-].[Ag+] HKZLPVFGJNLROG-UHFFFAOYSA-M 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 229910052723 transition metal Inorganic materials 0.000 description 1
- 150000003624 transition metals Chemical class 0.000 description 1
- 238000004832 voltammetry Methods 0.000 description 1
- 238000005303 weighing Methods 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
- H01G11/24—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, 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
-
- 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
- H01G11/84—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
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Electric Double-Layer Capacitors Or The Like (AREA)
Abstract
The invention discloses a Co-based nanosheet array electrode for a supercapacitor and a preparation method thereof, and is characterized in that Co (NO) is used3)2·6H2The Co-based nanosheet array electrode for the supercapacitor is prepared by a one-step hydrothermal method by taking O and 1, 4-naphthalenedicarboxylic acid as reaction raw materials, N, N-dimethylformamide as a solvent and triethylamine as a surfactant. The Co-based nanosheet array electrode for the supercapacitor and the preparation method thereof have the following advantages: the raw material source is wide, and the preparation cost is low; simple preparation process, low cost and high efficiencyHigh; the product has excellent capacitance performance and stability; the product has an ordered layered structure, has higher reversible specific capacitance, excellent rate capability and stable cyclicity when used as a super capacitor electrode, and has huge commercial application prospect.
Description
Technical field
The invention belongs to electrochemical energy storing device technical fields, and in particular to a kind of Co base nanometer for supercapacitor
Chip arrays electrode and preparation method thereof.
Background technique
Energy problem is the problem that the mankind are faced always for a long time, develops various energy conversions and storage facilities is
Solve the important means of energy problem.
Supercapacitor relies primarily on redox fake capacitance and double electricity as a kind of novel energy storage conversion equipment
Layer storage capacitors, capacitance are up to farads up to ten thousand, are able to achieve fast charging and discharging and high current power generation, have higher than lithium battery
Power density and longer service life cycle.Become the energy storage device of researcher extensive concern.In recent years, with
Electronic material device develops towards flexible, portable direction, and flexible super capacitor has become new material research and development
One important directions.It has significant advantage in terms of power density and energy density, has compared with existing energy storage device
It is flexible, light weight and cost is low, the characteristics such as environmental-friendly.
For carbon cloth due to big specific surface area, many advantages, such as stable chemical property, becomes ideal flexible electrode base
Bottom material.Transition metal composite theoretical specific capacitance with higher and good chemical property, are used as supercapacitor
The active material of electrode material is loaded on a flexible substrate, so that the flexible super capacitor of preparation takes into account excellent electrification
The application that cyclical stability and biggish capacitance are it on portable and wearable flexible electronic device provides can
Energy.The preparation of traditional flexible electrode be with coating method prepare, detailed process be first by active material, conductive agent and glue
Agent mixing is connect, is then coated on a current collector.However, the addition of conductive agent and bonding agent can reduce the specific capacity of electrode, increase
The complexity of process, and traditional flexible electrode is not amenable to pressure deformation and Bending Deformation repeatedly, poorly conductive etc.,
It is difficult to realize the requirement of the high specific capacitance to electrode material, excellent cycling stability.
Summary of the invention
In view of the deficiencies of the prior art, the present invention provides a kind of Co base nano-chip arrays electrodes for supercapacitor
And preparation method thereof, the pattern of electrode material is optimized, the chemical property of electrode material is improved, and simplifies production stream
Journey improves preparation efficiency.
A kind of preparation method of the Co base nano-chip arrays electrode for supercapacitor, comprising the following steps:
(1) carbon cloth is cut into the rectangle carbon cloth block of 1cm × 2cm, uses water: ethyl alcohol: acetone=1:1:1 mixing later
Liquid ultrasonic cleaning, later drying overnight, weigh;
(2) triethylamine is dissolved in n,N-Dimethylformamide, stirs to get uniformly mixed mixed solution A, and stirring
It is put into during mixing through step (1) treated aforementioned carbon cloth block;
(3) Co (NO is weighed3)2·6H2O and Isosorbide-5-Nitrae-naphthalenedicarboxylic acid are molten, are put into aforementioned mixed solution A, continue to stir to get
Mixed solution B;
(4) aforementioned mixed solution B is transferred in the hydrothermal reaction kettle of 20mL together with the aforementioned carbon cloth block of the inside, it
Aforementioned hydrothermal reaction kettle is placed in baking oven afterwards, slow temperature reaction;
(5) after reaction, aforementioned carbon cloth block is rinsed with deionized water and ethyl alcohol, then dried;
(6) aforementioned carbon cloth block is weighed using preceding, to determine having for the Co base nano-chip arrays electrode for supercapacitor
Imitate quality.
As a preferred solution, the usage ratio of triethylamine described in step (2) and n,N-Dimethylformamide is
1mg:1mL, when stirring a length of 1h.
It is further preferred that Co (NO3) 26H2O described in step (3) and Isosorbide-5-Nitrae-naphthalenedicarboxylic acid dosage mass ratio are
4:3.
It is further preferred that hydrothermal reaction kettle described in step (4) is placed in baking oven slow temperature reaction process control
Condition are as follows: aforementioned oven temperature gradually rises to 120 DEG C from room temperature in 30min, 3d is kept under the conditions of 120 DEG C, later with 4
℃·h-1Speed be cooled to room temperature.
It is further preferred that the condition of drying described in step (5) is 80 DEG C of sufficiently drying overnight.
A kind of Co base nano-chip arrays electrode for supercapacitor, is used for using one kind described in aforementioned any one
The preparation method of the Co base nano-chip arrays electrode of supercapacitor is prepared.
As a preferred solution, the material surface for being previously used for the Co base nano-chip arrays electrode of supercapacitor is
Hexagon two-dimensional layer vertical nanowires structure.
It is further preferred that can be used as supercapacitor soft for the Co base nano-chip arrays electrode for being previously used for supercapacitor
Property electrode, and specific capacitance is up to 844Fg-1。
The invention has the beneficial effects that:
1. raw material sources are wide, preparation cost is low: the present invention is very rich in earth storage capacity using the metal salt of Co as raw material
Richness, and it is cheap;
2. preparation process is simple, at low cost, high-efficient: the present invention uses hydrothermal reaction at low temperature, and condition requirement is more relaxed, instead
Answer that cost is relatively low, and reproducible;And existing electrode material is overcome without adding conductive agent and binder in preparation process
The disadvantages of material can not restore after being easy to fall off, bending in the process of bending;On the whole, preparation method of the invention it is at low cost,
Operating process is easy to control, production efficiency with higher;
3. product capacitive property is superior: the present invention is with Co (NO3)2·6H2O and Isosorbide-5-Nitrae-naphthalenedicarboxylic acid are Co made from raw material
The capacitor of base nano-chip arrays electrode is high, can be used as the use of high-efficiency energy-storage device materials, has huge application potential;
4. product stability can be superior: the present invention is with Co (NO3)2·6H2O and Isosorbide-5-Nitrae-naphthalenedicarboxylic acid are Co made from raw material
The capacitor stability of base nano-chip arrays electrode is high, can recycle for a long time, decays small, can be used as sustainable and high-efficiency energy-storage device
Materials'use has huge application potential;
5. product has orderly layer structure: a kind of Co base nano-chip arrays electricity for supercapacitor of the invention
Great to have two-dimensional layered structure, nanometer sheet interval is reasonable, be conducive to electrolyte solution and electrode material come into full contact with and electricity
Extremely conductive continuity, this orderly layer structure are conducive to the quick transmission of electrolyte ion;
6. product has Commercial Prospect: a kind of Co base nano-chip arrays electrode for supercapacitor of the present invention is used as
Electrode of super capacitor reversible specific capacitance with higher, excellent high rate performance and stable cyclicity, can fast implement
Commercial applications.
Detailed description of the invention
Fig. 1 is a kind of 15000 times of SEM figure of Co base nano-chip arrays electrode for supercapacitor of the invention;
Fig. 2 is a kind of 100000 times of SEM figure of Co base nano-chip arrays electrode for supercapacitor of the invention;
Fig. 3 is a kind of 1 μm of the material surface O element of Co base nano-chip arrays electrode for supercapacitor of the invention
Distribution map;
Fig. 4 is a kind of 1 μ of material surface Co element of Co base nano-chip arrays electrode for supercapacitor of the invention
M distribution map;
Fig. 5 is 1 μm of material surface N element of a kind of Co base nano-chip arrays electrode for supercapacitor of the invention
Distribution map;
Fig. 6 is 1 μm of material surface C element of a kind of Co base nano-chip arrays electrode for supercapacitor of the invention
Distribution map;
Fig. 7 be a kind of Co base nano-chip arrays electrode for supercapacitor of the invention sweep speed be 1~
100mV s-1Cyclic voltammetry (CV) curve graph;
Fig. 8 be a kind of Co base nano-chip arrays electrode for supercapacitor of the invention current density be 3~
20Ag-1Under charging and discharging curve figure;
It is 10Ag that Fig. 9, which is a kind of Co base nano-chip arrays electrode for supercapacitor of the invention in current density,-1
Capacity stability after lower 15000 circle of circulation can be schemed;
Figure 10 is a kind of infrared absorption spectra of Co base nano-chip arrays electrode for supercapacitor of the invention;
Figure 11 is a kind of high rate performance curve graph of Co base nano-chip arrays electrode for supercapacitor of the invention.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
Every other embodiment obtained without creative efforts, shall fall within the protection scope of the present invention.
Embodiment 1
A kind of preparation method of the Co base nano-chip arrays electrode for supercapacitor, comprising the following steps:
(1) carbon cloth is cut into the rectangle carbon cloth block of 1cm × 2cm, uses water: ethyl alcohol: acetone=1:1:1 mixing later
Liquid ultrasonic cleaning, later drying overnight, weigh;
(2) 15mg triethylamine is dissolved in the n,N-Dimethylformamide of 15mL, it is molten stirs to get uniformly mixed mixing
Liquid A, should during be put into through step (1) treated two panels carbon cloth block, mixing time 1h;
(3) Co (NO of 200mg is weighed3)2·6H2Isosorbide-5-Nitrae-naphthalenedicarboxylic acid of O and 150mg, is put into mixed solution A, continues to stir
1h is mixed, mixed solution B is obtained;
(4) mixed solution B is transferred in the hydrothermal reaction kettle of 20mL together with the carbon cloth block of the inside, later by hydro-thermal
Reaction kettle is placed in slow temperature reaction in baking oven, controls reaction process condition are as follows: oven temperature is in 30min gradually from room temperature
120 DEG C are risen to, keeps 3d under the conditions of 120 DEG C, later with 4 DEG C of h-1Speed be cooled to room temperature;
(5) after reaction, it is rinsed carbon cloth block 3 times with deionized water and ethyl alcohol, it is abundant overnight then under the conditions of 80 DEG C
Drying;
(6) preceding weighing carbon cloth block is being used, to determine the effective of the Co base nano-chip arrays electrode for supercapacitor
Quality is 0.5mg.
Co base nano-chip arrays electrode for supercapacitor is detected, detection project includes capacitive property, shape
Looks feature, material surface Elemental redistribution, cyclic voltammetry, constant current charge-discharge test, cyclical stability test, infrared absorption
Spectrogram test, high rate performance test.
Capacitive property detection: electricity of the measurement for the Co base nano-chip arrays electrode of supercapacitor under three-electrode system
Capacitive energy, using platinum plate electrode to Ag/AgCl electrode as reference electrode, test loop voltammetry and constant current charge-discharge curve,
Potential window is -0.5~0.5V, current density 3Ag-1When, the Co base nano-chip arrays electrode for supercapacitor is than electricity
Capacitance is up to 844Fg-1;It is 10Ag in current density-1Capacity retention is 95% after lower circulation 15000 times.
Shape characteristic detection: powerful SEM pattern is carried out to the Co base nano-chip arrays electrode for supercapacitor
Figure detection, the result is shown in Figure 1-2.From figure 1 it appears that the structure of the Co base nano-chip arrays electrode for supercapacitor is
The flower-like structure being made of vertical two-dimensional layer nanometer sheet;Fig. 2 can clearly show that nanometer sheet is one regular in Fig. 1
Hexagonal structure, the nanometer sheet of this structure flocks together, and spacing is reasonable, reduces ion transmission to a certain extent
Resistance, and structure is hardly damaged and collapses, and ensure that the high circulation stability of capacitor.
Material surface Elemental redistribution: member is carried out to the material surface of the Co base nano-chip arrays electrode for supercapacitor
Plain distribution map detection, is as a result shown in Fig. 3-6.It can be seen that essential element C, O, Co, N are evenly distributed in carbon from above-mentioned 4 figures
On cloth, it is demonstrated by the superiority of the preparation method, this surface-element distribution facilitates the Co base nanometer for supercapacitor
The excellent electrochemical performance of chip arrays electrode.
Cyclic voltammetry: to the Co base nano-chip arrays electrode progress for supercapacitor under different scanning rates
Cyclic voltammetry (cv), test result is shown in Fig. 7.As can be seen from Figure 7 the Co base nano-chip arrays of supercapacitor are used for
When the potential window of electrode is -0.5~0.5V, it is shown that wider potential window;And every CV curve presentation is almost symmetrical
Rectangular shape, shows apparent Electric double-layer capacitor, and the good symmetry of curve has sufficiently reacted the high reversible of process;With
Sweep speed from 1mVs-1Increase to 100mVs-1, CV curve still maintains similar shape, illustrates for supercapacitor
Co base nano-chip arrays electrode has good high rate performance.
Constant current charge-discharge test: to the Co base nano-chip arrays electrode for supercapacitor under different current densities
Constant current charge-discharge tested, test result is shown in Fig. 8.As can be seen from Figure 8 charging curve and discharge curve all have
Symmetry illustrates that the Co base nano-chip arrays electrode for supercapacitor has good stability and high reversible,
Potential window -0.5~0.5V, current density 3Ag-1When, specific capacitance value is up to 844Fg-1。
Cyclical stability test: under same voltage window, current density 10Ag-1When to the Co for supercapacitor
Base nano-chip arrays electrode carries out the Detection of Stability of 15000 circle of circulation, and test result is shown in Fig. 9.As can be seen from Figure 9 it is used for
The Co base nano-chip arrays electrode of supercapacitor under biggish current density have excellent cyclical stability, it is potential at
For novel business material.
Infrared absorption spectra test: infrared absorption spectra is carried out to the Co base nano-chip arrays electrode for supercapacitor
Test, test result are shown in Figure 10.As can be seen from Figure 10 the ligand reacted is still present in sample, so Co base nanometer sheet
It can determine that as complex structure.
High rate performance test: high rate performance test is carried out to the Co base nano-chip arrays electrode for supercapacitor, is surveyed
Test result is shown in Figure 11.As can be seen from Figure 11 when current density is from 3Ag-1Increase to 20Ag-1When, capacitance fade amplitude is little,
Showing the Co base nano-chip arrays electrode for supercapacitor has good high rate performance.
It should be appreciated that described above, the specific embodiments are only for explaining the present invention, is not intended to limit the present invention.By
The obvious changes or variations that spirit of the invention is extended out are still in the protection scope of this invention.
Claims (8)
1. a kind of preparation method of the Co base nano-chip arrays electrode for supercapacitor, which is characterized in that including following step
It is rapid:
(1) carbon cloth is cut into the rectangle carbon cloth block of 1cm × 2cm, use water: ethyl alcohol later: acetone=1:1:1 mixed liquor is super
Sound cleaning, later drying overnight, weigh;
(2) triethylamine is dissolved in n,N-Dimethylformamide, stirs to get uniformly mixed mixed solution A, and stirred
It is put into journey through step (1) treated the carbon cloth block;
(3) Co (NO is weighed3)2·6H2O and Isosorbide-5-Nitrae-naphthalenedicarboxylic acid are molten, are put into the mixed solution A, continue to stir to get mixing
Solution B;
(4) the mixed solution B is transferred in the hydrothermal reaction kettle of 20mL together with the carbon cloth block of the inside, later will
The hydrothermal reaction kettle is placed in baking oven, slow temperature reaction;
(5) after reaction, the carbon cloth block is rinsed with deionized water and ethyl alcohol, then dried;
(6) the carbon cloth block is weighed using preceding, to determine effective matter of the Co base nano-chip arrays electrode for supercapacitor
Amount.
2. a kind of preparation method of Co base nano-chip arrays electrode for supercapacitor according to claim 1,
It is characterized in that, the usage ratio of triethylamine described in step (2) and n,N-Dimethylformamide is 1mg:1mL, and when stirring is a length of
1h。
3. a kind of preparation method of Co base nano-chip arrays electrode for supercapacitor according to claim 1,
It is characterized in that, Co (NO3) 26H2O described in step (3) and Isosorbide-5-Nitrae-naphthalenedicarboxylic acid dosage mass ratio are 4:3.
4. a kind of preparation method of Co base nano-chip arrays electrode for supercapacitor according to claim 1,
It is characterized in that, hydrothermal reaction kettle described in step (4) is placed in the condition of slow temperature reaction process control in baking oven are as follows: described
Oven temperature gradually rises to 120 DEG C from room temperature in 30min, keeps 3d under the conditions of 120 DEG C, later with 4 DEG C of h-1Speed
It is cooled to room temperature.
5. a kind of preparation method of Co base nano-chip arrays electrode for supercapacitor according to claim 1,
It is characterized in that, the condition of drying described in step (5) is 80 DEG C of sufficiently drying overnight.
6. a kind of Co base nano-chip arrays electrode for supercapacitor, which is characterized in that described for supercapacitor
Co base nano-chip arrays electrode is using a kind of Co base nanometer sheet for supercapacitor described in claim 1-5 any one
The preparation method of array electrode is prepared.
7. a kind of Co base nano-chip arrays electrode for supercapacitor according to claim 6, which is characterized in that institute
The material surface for stating the Co base nano-chip arrays electrode for supercapacitor is hexagon two-dimensional layer vertical nanowires structure.
8. a kind of Co base nano-chip arrays electrode for supercapacitor according to claim 7, which is characterized in that institute
It states and can be used as supercapacitor flexible electrode for the Co base nano-chip arrays electrode of supercapacitor, and specific capacitance is reachable
844Fg-1。
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CN108172418A (en) * | 2018-01-14 | 2018-06-15 | 常州大学 | Aromatic carboxylic acids class transition metal organic framework and its preparation method and application |
CN108346522A (en) * | 2018-03-28 | 2018-07-31 | 安徽师范大学 | A kind of cobaltosic oxide hierarchical structure nano-array material, preparation method and applications |
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