CN108447703A - A kind of ferronickel double-metal hydroxide@ceria heterogeneous structural nanos sheet material, preparation method and applications - Google Patents
A kind of ferronickel double-metal hydroxide@ceria heterogeneous structural nanos sheet material, preparation method and applications Download PDFInfo
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- CN108447703A CN108447703A CN201810219505.5A CN201810219505A CN108447703A CN 108447703 A CN108447703 A CN 108447703A CN 201810219505 A CN201810219505 A CN 201810219505A CN 108447703 A CN108447703 A CN 108447703A
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- 229910000000 metal hydroxide Inorganic materials 0.000 title claims abstract description 64
- 229910000863 Ferronickel Inorganic materials 0.000 title claims abstract description 61
- 239000000463 material Substances 0.000 title claims abstract description 55
- 229910000422 cerium(IV) oxide Inorganic materials 0.000 title claims abstract description 40
- 238000002360 preparation method Methods 0.000 title claims abstract description 19
- 241000549556 Nanos Species 0.000 title description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 51
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 38
- 239000002135 nanosheet Substances 0.000 claims abstract description 34
- 238000006243 chemical reaction Methods 0.000 claims abstract description 31
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 26
- 239000006260 foam Substances 0.000 claims abstract description 22
- 150000004692 metal hydroxides Chemical class 0.000 claims abstract description 21
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims abstract description 17
- 239000004202 carbamide Substances 0.000 claims abstract description 17
- 238000005868 electrolysis reaction Methods 0.000 claims abstract description 11
- 238000010438 heat treatment Methods 0.000 claims abstract description 11
- 239000011259 mixed solution Substances 0.000 claims abstract description 10
- QQZMWMKOWKGPQY-UHFFFAOYSA-N cerium(3+);trinitrate;hexahydrate Chemical compound O.O.O.O.O.O.[Ce+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O QQZMWMKOWKGPQY-UHFFFAOYSA-N 0.000 claims abstract description 9
- 150000002823 nitrates Chemical class 0.000 claims abstract description 9
- SPIFDSWFDKNERT-UHFFFAOYSA-N nickel;hydrate Chemical compound O.[Ni] SPIFDSWFDKNERT-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000010405 anode material Substances 0.000 claims abstract description 6
- 238000004140 cleaning Methods 0.000 claims description 6
- 238000001035 drying Methods 0.000 claims description 6
- 239000003990 capacitor Substances 0.000 claims description 3
- 239000007772 electrode material Substances 0.000 claims description 2
- 238000003756 stirring Methods 0.000 claims description 2
- 229910002651 NO3 Inorganic materials 0.000 claims 1
- 210000002700 urine Anatomy 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 10
- 230000003197 catalytic effect Effects 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 239000006185 dispersion Substances 0.000 abstract description 2
- 230000002349 favourable effect Effects 0.000 abstract description 2
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 12
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 8
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 5
- 238000000157 electrochemical-induced impedance spectroscopy Methods 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 5
- 238000004502 linear sweep voltammetry Methods 0.000 description 5
- 239000001301 oxygen Substances 0.000 description 5
- 229910052760 oxygen Inorganic materials 0.000 description 5
- 239000008151 electrolyte solution Substances 0.000 description 4
- 235000019441 ethanol Nutrition 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 3
- 238000002441 X-ray diffraction Methods 0.000 description 3
- 239000003054 catalyst Substances 0.000 description 3
- 239000001257 hydrogen Substances 0.000 description 3
- 229910052739 hydrogen Inorganic materials 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- 238000010408 sweeping Methods 0.000 description 3
- 229910052684 Cerium Inorganic materials 0.000 description 2
- 229910021607 Silver chloride Inorganic materials 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- CETPSERCERDGAM-UHFFFAOYSA-N ceric oxide Chemical compound O=[Ce]=O CETPSERCERDGAM-UHFFFAOYSA-N 0.000 description 2
- GWXLDORMOJMVQZ-UHFFFAOYSA-N cerium Chemical compound [Ce] GWXLDORMOJMVQZ-UHFFFAOYSA-N 0.000 description 2
- 229910000420 cerium oxide Inorganic materials 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000002105 nanoparticle Substances 0.000 description 2
- BMMGVYCKOGBVEV-UHFFFAOYSA-N oxo(oxoceriooxy)cerium Chemical compound [Ce]=O.O=[Ce]=O BMMGVYCKOGBVEV-UHFFFAOYSA-N 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- HKZLPVFGJNLROG-UHFFFAOYSA-M silver monochloride Chemical compound [Cl-].[Ag+] HKZLPVFGJNLROG-UHFFFAOYSA-M 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N titanium dioxide Inorganic materials O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 238000004832 voltammetry Methods 0.000 description 2
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 238000003491 array Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000002484 cyclic voltammetry Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- 238000000635 electron micrograph Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002803 fossil fuel Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 1
- 238000001453 impedance spectrum Methods 0.000 description 1
- UGKDIUIOSMUOAW-UHFFFAOYSA-N iron nickel Chemical compound [Fe].[Ni] UGKDIUIOSMUOAW-UHFFFAOYSA-N 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000001000 micrograph Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000002086 nanomaterial Substances 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 238000010025 steaming Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 239000003643 water by type Substances 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
- H01G11/84—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
Landscapes
- Engineering & Computer Science (AREA)
- Catalysts (AREA)
- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Compounds Of Iron (AREA)
Abstract
The present invention provides a kind of ferronickel double-metal hydroxide@ceria heterogeneous structural nano sheet materials, preparation method and applications, it is prepared using kind of two-step method, in closed high-temperature high-pressure reaction kettle, using redistilled water as reaction dissolvent, six water nickel nitrates are added, nine water ferric nitrates, urea is uniformly mixed, heating, it generates a hyperbaric environment and prepares ferronickel duplex metal hydroxide nanometer piece material, then, using redistilled water as reaction dissolvent, cerium nitrate hexahydrate is added, urea, by containing ferronickel duplex metal hydroxide nanometer piece material nickel foam immerse mixed solution, heating generates hyperbaric environment and is prepared.Preparation method product purity height, good dispersion, good crystalline and controllable, production cost is low, favorable reproducibility.Can not only there is big specific surface area, provide the active area of bigger directly as the anode material of catalytic electrolysis water, to realize rapidly and efficiently electrolysis water, and realizes long stability.
Description
Technical field
The invention belongs to technical field of nano material, are related to a kind of ferronickel double-metal hydroxide@ceria hetero-junctions
Structure nanometer sheet material, preparation method and applications.
Background technology
With a large amount of consumption of fossil fuel, the problem of energy shortages, is more prominent, find alternative clean energy resource at
For one of the hot subject of scientists study.Wherein, Hydrogen Energy is because its raw hydrogen source is wide, cleanliness without any pollution and energy density
The advantages that high and be concerned, current electrolysis water is a kind of most effective method of hydrogen manufacturing.
The anodic oxidation reactions (OER) of water are most one of basic reactions of water decomposition, but due to by O2Overpotential,
The influence of bath resistance and other factors, actual bath voltage are far above theoretical voltage.Currently, finding superior performance
Anode OER catalyst with reduce as much as possible Oxygen anodic evolution reaction overpotential, be electrolysed wate research hot spot be also that difficult point is asked
Topic.
The study found that Fe, Co, Ni mixed metal hydroxides show good OER activity in alkaline medium so that
LDH materials cheap and easy to get cause concern in OER reactions.
Invention content
In order to solve the above technical problems, the present invention provides a kind of ferronickel double-metal hydroxide@ceria hetero-junctions
Structure nanometer sheet material and preparation method thereof, two-step method controlledly synthesis ferronickel double-metal hydroxide ceria heterojunction structure are received
Rice sheet material
The present invention also provides a kind of ferronickel double-metal hydroxide@ceria heterogeneous structural nano sheet materials in OER
The application of aspect.
A kind of preparation side of ferronickel double-metal hydroxide@ceria heterogeneous structural nano sheet materials provided by the invention
Method includes the following steps：
A, nickel foam is cleaned by ultrasonic clean；
B, six water nickel nitrates, nine water ferric nitrates and urea are uniformly mixed, are mixed by being mixed in redistilled water
Liquid is placed in reaction kettle, and the nickel foam for cleaning rear surface cleaning is immersed in mixed liquor, and reaction kettle is closed, heating reaction, so
Afterwards, it is cooled to room temperature, cleans, drying at room temperature obtains the nickel foam for growing ferronickel duplex metal hydroxide nanometer piece；
C, cerium nitrate hexahydrate and urea are placed in redistilled water, stir, uniform mixed solution is formed, by step b
The nickel foam for growing ferronickel duplex metal hydroxide nanometer piece of preparation immerses in mixed solution, is put into reaction kettle, will be anti-
It answers kettle closed, after heating reaction, is cooled to room temperature, cleans, drying at room temperature obtains ferronickel double-metal hydroxide@titanium dioxides
Cerium heterogeneous structural nano sheet material.
Specific cleaning method is in step a：There is the nickel foam of impurity to be sequentially placed into dilute hydrochloric acid, ethyl alcohol and secondary steaming on surface
It is cleaned by ultrasonic respectively in distilled water, it is respectively 10-20min to be cleaned by ultrasonic the time.
The molar ratio of six water nickel nitrates, nine water ferric nitrates and urea used in step b is 1:1:4.
Six water nickel nitrates used concentration >=0.006mol L in mixed liquor in step b-1, nine water ferric nitrates are in mixed liquor
Concentration >=0.006mol L-1, urea concentration >=0.02mol L in mixed liquor-1, volume >=30mL of redistilled water used.
Heating reaction described in step b refers to reacting 7-8h at 80-90 DEG C；
Cerium nitrate hexahydrate and the molar ratio of urea are 1 in step c:4.
Cerium nitrate hexahydrate a concentration of 0.0067mol L in mixed solution in step c-1, urea is dense in mixed solution
Degree >=0.02mol L-1。
Heating reaction described in step c refers to reacting 23-24h at 80-90 DEG C.
The ferronickel double-metal hydroxide@ceria heterogeneous structural nano sheet materials prepared using the above method, with nickel
Iron double metal hydroxide nano piece is skeleton, cladding cerium oxide nanoparticles material outside it, the structure homoepitaxial,
Close-packed arrays have well-regulated 3-D heterojunction structure.
The present invention also provides a kind of answering for ferronickel double-metal hydroxide@ceria heterogeneous structural nano sheet materials
With.The application of the specific anode material as catalytic electrolysis water.
Prepared ferronickel double-metal hydroxide@ceria heterogeneous structural nano sheet materials are grown in nickel foam,
Can not only there is big specific surface area, provide the active area of bigger directly as the anode material of catalytic electrolysis water, to
It realizes rapidly and efficiently electrolysis water, and realizes long stability.
A kind of two-step method provided by the invention prepares ferronickel double-metal hydroxide@ceria heterogeneous structural nano sheet materials
The method of material is, using redistilled water as reaction dissolvent, six water nitric acid to be added in closed high-temperature high-pressure reaction kettle
Nickel, nine water ferric nitrates, urea are uniformly mixed, and by heating reaction system, are generated a hyperbaric environment and are prepared ferronickel bimetallic
Then using redistilled water as reaction dissolvent, cerium nitrate hexahydrate, urea mixing is added in hydroxide nano sheet material
It is even, by containing ferronickel duplex metal hydroxide nanometer piece material nickel foam immerse mixed solution, pass through heat reaction system
The one kind for generating hyperbaric environment and preparing ferronickel double-metal hydroxide ceria heterogeneous structural nano sheet material has efficacious prescriptions
Method.
Compared with prior art, preparation method product purity height of the present invention, good dispersion, good crystalline and controllable, production
It is at low cost, favorable reproducibility.Prepared ferronickel double-metal hydroxide@ceria heterogeneous structural nano pieces are grown in foam
On nickel, long cyclical stability, big specific surface area, higher surface can be realized directly as the anode material of electrolysis water
Activity has potential application in terms of catalytic electrolysis water.
Description of the drawings
Fig. 1 is the electron scanning micrograph (SEM) of ferronickel duplex metal hydroxide nanometer piece prepared by embodiment 1；
Fig. 2 is the scanning of ferronickel double-metal hydroxide@ceria heterogeneous structural nano sheet materials prepared by embodiment 1
Electron micrograph (SEM)；
Fig. 3 is the transmission electron microscope photo (TEM) of ferronickel duplex metal hydroxide nanometer piece material prepared by embodiment 1；
Fig. 4 is the transmission of ferronickel double-metal hydroxide@ceria heterogeneous structural nano sheet materials prepared by embodiment 1
Electromicroscopic photograph (TEM)；
Fig. 5 is the X-ray diffraction photo (XRD) of ferronickel duplex metal hydroxide nanometer piece prepared by embodiment 1；
Fig. 6 is that the X of ferronickel double-metal hydroxide@ceria heterogeneous structural nano sheet materials prepared by embodiment 1 is penetrated
Line diffraction images (XRD)；
Fig. 7 is the electrochemical impedance spectroscopy (EIS) of the pure nickel foam of embodiment 1；
Fig. 8 is the electrochemical impedance spectroscopy (EIS) of ferronickel duplex metal hydroxide nanometer piece prepared by embodiment 1；
Fig. 9 is the electrification of ferronickel double-metal hydroxide@ceria heterogeneous structural nano sheet materials prepared by embodiment 1
Learn impedance spectrum (EIS)；
Figure 10 is that the oxygen evolution of the pure nickel foam of embodiment 1 reacts the comparison song of (OER) linear sweep voltammetry test
Line (LSV)；
Figure 11 is that the oxygen evolution of ferronickel duplex metal hydroxide nanometer piece material prepared by embodiment 1 reacts (OER) line
Property scanning voltammetry test correlation curve (LSV)；
Figure 12 is the oxygen of ferronickel double-metal hydroxide@ceria heterogeneous structural nano sheet materials prepared by embodiment 1
The correlation curve (LSV) of gas evolution reaction (OER) linear sweep voltammetry test.
Figure 13 is following for ferronickel double-metal hydroxide@ceria heterogeneous structural nano sheet materials prepared by embodiment 1
Ring volt-ampere curve (CV).
Figure 14 is the perseverance of ferronickel double-metal hydroxide@ceria heterogeneous structural nano sheet materials prepared by embodiment 1
Current charging and discharging curve.
Specific implementation mode
Embodiment 1
A kind of preparation method of ferronickel double-metal hydroxide@ceria heterogeneous structural nano sheet materials, including it is following
Step：
A, there is the nickel foam of impurity to be sequentially placed into hydrochloric acid, ethyl alcohol, redistilled water on surface to be cleaned by ultrasonic, every time
Clean 20min, you can；
B, six water nickel nitrates of 0.2mmol, nine water ferric nitrates of 0.2mmol and 0.8mmol urea are placed in 30mL second distillations
It mixes, is uniformly placed in 60mL reaction kettles in water, the nickel foam after step a cleanings is immersed in mixed liquor, reaction kettle is poured into
In, kettle cover is tightened, 8h is reacted at 90 DEG C, takes out reaction kettle cooled to room temperature, ethyl alcohol, redistilled water is used to rinse successively
Totally, drying at room temperature obtains the nickel foam for growing ferronickel duplex metal hydroxide nanometer piece material.
C, by 0.2mmol cerium nitrate hexahydrates, the dissolving of 0.8mmol urea and in 30mL redistilled waters, magnetic agitation
20min forms uniform mixed solution, the bubble for growing ferronickel duplex metal hydroxide nanometer piece material prepared by step b
Foam nickel immerses mixed solution, is placed in reaction kettle, and reaction kettle is closed, reacts for 24 hours, is cooled to room temperature at 90 DEG C, ethyl alcohol is clear
It washes, drying at room temperature, obtains ferronickel double-metal hydroxide@ceria heterogeneous structural nano sheet materials.
Ferronickel double-metal hydroxide@ceria heterogeneous structural nano sheet materials prepared by the above method, it is double with ferronickel
Metal hydroxides nanometer sheet is skeleton, coats cerium oxide nanoparticles material outside it, the structure homoepitaxial, close
Arrangement, has well-regulated 3-D heterojunction structure.
Embodiment 2
A kind of application of ferronickel double-metal hydroxide@ceria heterogeneous structural nano sheet materials.It is specific to be used as catalysis
The application of the anode material of electrolysis water.
A kind of anode of electrolytic water electrode, the ferronickel double-metal hydroxide@cerias prepared using above-described embodiment 1 are different
It is prepared by matter structure nano sheet material.
Ferronickel double-metal hydroxide@ceria heterogeneous structural nano sheet materials prepared by embodiment 1 are in electrolysis water side
The application in face：
Impedance value is tested：10mL 1mol/L NaOH solutions are taken to be put into electrolytic cell as electrolyte solution, it respectively will be pure
Nickel foam, embodiment 1 prepare ferronickel double-metal hydroxide and ferronickel double-metal hydroxide@ceria heterojunction structures
Nanometer sheet material is working electrode, is to electrode with Pt electrodes, Ag/AgCl electrodes are reference electrode, obtain impedance diagram, are such as schemed
7, shown in Fig. 8, Fig. 9, from impedance diagram comparison it can be seen that ferronickel double-metal hydroxide@ceria heterogeneous structural nano pieces are multiple
Condensation material has smaller impedance value.
OER catalytic activity is tested：After taking 10mL 1mol/L NaOH solutions to be passed through oxygen 30 minutes, as electrolyte solution
It is put into electrolytic cell, is prepared by ferronickel duplex metal hydroxide nanometer piece material, the step c of the step b preparations in embodiment 1
Ferronickel double-metal hydroxide@ceria heterogeneous structural nano sheet materials and nickel foam are respectively as working electrode, with Pt
Silk electrode is to electrode, and Ag/AgCl electrodes are reference electrode, is 5mV s sweeping speed-1, voltage range be 0-1.0V when it is linear
Voltammetry curve is scanned, as shown in Figure 10, Figure 11 and Figure 12, it can be seen from the figure that being compared to pure nickel foam and single
Ferronickel duplex metal hydroxide nanometer piece, ferronickel double-metal hydroxide@ceria heterogeneous structural nano piece composite materials
When as OER catalyst, smaller overpotential is needed, illustrates ferronickel double-metal hydroxide@ceria heterogeneous structural nanos
Piece composite material is a kind of efficient OER catalyst.
Embodiment 3
A kind of application of ferronickel double-metal hydroxide@ceria heterogeneous structural nano sheet materials.It is specifically used as super
The application of capacitor electrode material.
A kind of ultracapacitor working electrode, the ferronickel double-metal hydroxide@titanium dioxides prepared using above-described embodiment 1
It is prepared by cerium heterogeneous structural nano sheet material.
Ferronickel double-metal hydroxide@ceria heterogeneous structural nano sheet materials prepared by embodiment 1 are in super capacitor
Application in terms of device：
10mL 1mol/L NaOH solutions are taken to be put into electrolytic cell as electrolyte solution, the nickel that will be prepared in embodiment 1
Iron double metal hydroxide@ceria heterogeneous structural nano sheet materials are followed successively by 5mV s as working electrode, sweeping speed-1、
10mV s-1、20mV s-1、30mV s-1、50mV s-1、70mV s-1、100mV s-1When the cyclic voltammetry curve that measures, such as scheme
13.Schemed from CV as can be seen that with the increase voltage linear relationship for sweeping speed.
10mL 1mol/L NaOH solutions are taken to be put into electrolytic cell as electrolyte solution, the nickel that will be prepared in embodiment 1
Iron double metal hydroxide@ceria heterogeneous structural nano sheet materials obtain 1A g as working electrode, test-1、2A g-1、
3A g-1、5A g-1、7A g-1、10Ag-1When constant current charge-discharge curve, such as Figure 14.Ferronickel can be obtained from charging and discharging curve
Double-metal hydroxide@ceria heterogeneous structural nano sheet materials are very big compared to other materials capacity as electrode, pass through meter
It calculates in 1A g-1When, maximum capacitance is up to 1306.9F g-1。
Claims (10)
1. a kind of preparation method of ferronickel double-metal hydroxide@ceria heterogeneous structural nano sheet materials, which is characterized in that
The preparation method comprises the following steps：
A, nickel foam is cleaned by ultrasonic clean；
B, six water nickel nitrates, nine water ferric nitrates and urea are uniformly mixed by being mixed in redistilled water, obtain mixed liquor,
It is placed in reaction kettle, the nickel foam for cleaning rear surface cleaning is immersed in mixed liquor, reaction kettle is closed, heating reaction, then, cold
But it to room temperature, cleans, drying at room temperature obtains the nickel foam for growing ferronickel duplex metal hydroxide nanometer piece；
C, cerium nitrate hexahydrate and urea are placed in redistilled water, stir, forms uniform mixed solution, is prepared by step b
Grow ferronickel duplex metal hydroxide nanometer piece nickel foam immerse mixed solution in, be put into reaction kettle, by reaction kettle
It is closed, it after heating reaction, is cooled to room temperature, cleans, it is different to obtain ferronickel double-metal hydroxide@cerias for drying at room temperature
Matter structure nano sheet material.
2. preparation method according to claim 1, which is characterized in that six water nickel nitrates are in mixed liquor used in step b
Concentration >=0.006mol L-1, nine water ferric nitrates concentration >=0.006mol L in mixed liquor-1, urea in mixed liquor concentration >=
0.02mol L-1, volume >=30mL of redistilled water used.
3. preparation method according to claim 1 or 2, which is characterized in that six water nickel nitrate used, nine water ferric nitrates, urine
The molar ratio of element is 1:1:4.
4. preparation method according to claim 1 or 2, which is characterized in that heating reaction described in step b refers in 80-
7-8h is reacted at 90 DEG C.
5. according to claim 1-4 any one of them preparation methods, which is characterized in that cerium nitrate hexahydrate used exists in step c
A concentration of 0.006mol L in mixed solution-1, concentration >=0.02mol L of the urea in mixed solution-1。
6. according to claim 1-5 any one of them preparation methods, which is characterized in that cerium nitrate hexahydrate in step c, urea
Molar ratio is 1:4.
7. according to claim 1-6 any one of them preparation methods, which is characterized in that heating described in step c, which is reacted, refers to
23-24h is reacted at 80-90 DEG C.
8. the ferronickel double-metal hydroxide@ceria heterogeneous structural nano pieces prepared by a kind of any one of claim 1-7
Material.
It is urged 9. a kind of ferronickel double-metal hydroxide@ceria heterogeneous structural nano sheet materials according to any one of claims 8 are used as
Change the application of the anode material of electrolysis water.
10. the ferronickel double-metal hydroxide@ceria heterogeneous structural nano sheet materials described in a kind of claim 6 are as super
The application of the electrode material of grade capacitor.
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109234755A (en) * | 2018-10-30 | 2019-01-18 | 江苏大学 | A kind of layered double hydroxide composite construction elctro-catalyst and preparation method |
| CN110354862A (en) * | 2019-08-14 | 2019-10-22 | 福州大学 | The method that nickel foam stromal surface cerium ion assisted in situ modifies three-dimensional nickel-ferric spinel electro-catalysis analysis oxygen electrode |
| CN111871426A (en) * | 2020-06-11 | 2020-11-03 | 安徽师范大学 | Pd nanoparticle-loaded nickel-iron double hydroxide nanosheet array structure material, preparation method and application thereof |
| CN112481640A (en) * | 2020-12-01 | 2021-03-12 | 北京师范大学 | NiFe-LDH@CoSx/NF composite material and preparation method and application thereof |
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| CN114487052A (en) * | 2022-01-07 | 2022-05-13 | 武汉轻工大学 | Preparation method and application of high-salt food heavy metal detection electrode |
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| CN109234755A (en) * | 2018-10-30 | 2019-01-18 | 江苏大学 | A kind of layered double hydroxide composite construction elctro-catalyst and preparation method |
| CN110354862A (en) * | 2019-08-14 | 2019-10-22 | 福州大学 | The method that nickel foam stromal surface cerium ion assisted in situ modifies three-dimensional nickel-ferric spinel electro-catalysis analysis oxygen electrode |
| CN110354862B (en) * | 2019-08-14 | 2021-08-31 | 福州大学 | Method for in-situ modification of three-dimensional nickel-iron hydrotalcite electrocatalytic oxygen evolution electrode by aid of cerium ions on surface of foamed nickel substrate |
| CN111871426A (en) * | 2020-06-11 | 2020-11-03 | 安徽师范大学 | Pd nanoparticle-loaded nickel-iron double hydroxide nanosheet array structure material, preparation method and application thereof |
| CN111871426B (en) * | 2020-06-11 | 2023-08-29 | 安徽师范大学 | Pd nanoparticle-supported nickel-iron double hydroxide nanosheet array structure material, preparation method and application thereof |
| KR20230028784A (en) | 2020-07-30 | 2023-03-02 | 고쿠리츠 다이가쿠 호진 교토 다이가쿠 | Anode for alkaline water electrolysis and manufacturing method thereof |
| WO2022025208A1 (en) | 2020-07-30 | 2022-02-03 | 国立大学法人京都大学 | Anode for alkaline water electrolysis and method for producing same |
| CN112481640B (en) * | 2020-12-01 | 2022-02-15 | 北京师范大学 | NiFe-LDH@CoSx/NF composite material and preparation method and application thereof |
| CN112481640A (en) * | 2020-12-01 | 2021-03-12 | 北京师范大学 | NiFe-LDH@CoSx/NF composite material and preparation method and application thereof |
| CN114487052A (en) * | 2022-01-07 | 2022-05-13 | 武汉轻工大学 | Preparation method and application of high-salt food heavy metal detection electrode |
| CN114487052B (en) * | 2022-01-07 | 2023-05-12 | 武汉轻工大学 | Preparation method and application of high-salt food heavy metal detection electrode |
| CN114318365A (en) * | 2022-02-11 | 2022-04-12 | 江西省科学院能源研究所 | Cobalt-vanadium-iron ternary metal water electrolysis catalyst and preparation method and application thereof |
| CN114477317A (en) * | 2022-03-07 | 2022-05-13 | 东北石油大学 | Needle-shaped nano iron-based double hydroxide and application thereof |
| CN114477317B (en) * | 2022-03-07 | 2022-08-26 | 东北石油大学 | Needle-shaped nano iron-based double hydroxide and application thereof in regulating and controlling selectivity of oil shale pyrolysis product at low temperature |
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