CN109950050A - A kind of preparation method based on carbonization melamine foamed plastic@Bi2O3 nanometer sheet electrode material for super capacitor - Google Patents
A kind of preparation method based on carbonization melamine foamed plastic@Bi2O3 nanometer sheet electrode material for super capacitor Download PDFInfo
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Abstract
It is disclosed by the invention a kind of based on carbonization melamine foamed plastic@Bi2O3The preparation method of nanometer sheet electrode material for super capacitor, comprising the following steps: (1) water-soluble bismuth salt and carbonization melamine foamed plastic are subjected to hydro-thermal reaction；(2) cleaning agent removes remaining solvent and Bi3+、NO3 ‑, obtain intermediate product；(3) under an inert atmosphere, the intermediate product is made annealing treatment to get carbonization melamine foamed plastic@Bi2O3Nanometer sheet electrode material for super capacitor, the present invention are the growth in situ Bi on carbonization melamine foamed plastic by a kind of simple solvent-thermal method2O3Nanometer sheet, form spatial nuclei sheath structure, the electrode material has good electric conductivity and high specific surface area, the diffusion path of electrolyte ion is shortened in the storage for being conducive to electrolyte, increases the contact area of electrolyte and material, to improve capacitor, and the use of binder and conductivity additive is avoided when constructing capacitor, material obtained can be made flexible electrode, and preparation method is simple, non-hazardous conditions, at low cost.
Description
Technical field
The present invention relates to electrode material technical fields, and in particular to one kind is based on carbonization melamine foamed plastic@Bi2O3Nanometer
The preparation method of piece electrode material for super capacitor.
Background technique
With the fast development of modern science and technology, Highgrade integration, light weight portability, wearable, implantable etc. are new general
Electronic product is read to continue to bring out.The appearance of smart electronics product, there is an urgent need to develop the micro-nano energy storage devices with its highly compatible
Solve dynamical problem.Supercapacitor is as a kind of emerging energy storage device, since it can make up for it battery and traditional capacitor
Between gap and cause the extensive concern of people.In order to meet the great demand of practical application, keep high power density and
While long circulation life, it is imperative to develop a kind of high-energy density, the supercapacitor of high working voltage.Supercapacitor
It is mainly made of collector, electrode, electrolyte and four part of diaphragm, electrode material is typically considered in supercapacitor the most
Crucial part.In numerous electrode materials, porous carbon materials are due to its high-specific surface area, cellular structure is abundant, high conductivity,
The features such as at low cost, physico-chemical property is stablized and be widely used.Melamine foamed plastic (Melamine Foam, MF) has hole
The three-dimensional structure of rule and high nitrogen-containing, by high temperature cabonization, available three-dimensional N doping porous charcoal foamed material.Even if through
Carbonization is crossed, pore structure, which is still able to maintain good mechanical property, can be used as the ideal carrier of synthesis electrode material for super capacitor.
Usually there is relatively low capacitors for carbon material, in the prior art, often adulterate hetero atom to improve capacitor, such as
Patent CN201810212762.6, but its electrochemical stability, redox reversible are low, cyclical stability is poor.
Summary of the invention
To solve the above problems, the present invention provides one kind based on carbonization melamine foamed plastic@Bi2O3Nanometer sheet super capacitor
The preparation method of device electrode material, good conductivity, stable electrochemical property, capacitor are high, and preparation method is simple.
The technical solution that the present invention solves is to provide a kind of based on carbonization melamine foamed plastic@Bi2O3The super electricity of nanometer sheet
The preparation method of container electrode material, which comprises the following steps: (1) finely dispersed bismuth-containing compound is molten
Liquid and carbonization melamine foamed plastic carry out hydro-thermal reaction；(2) cleaning agent removes remaining solvent and Bi3+、NO3-, obtain intermediate production
Object；(3) under an inert atmosphere, annealing intermediate product is to get carbonization melamine foamed plastic@Bi2O3Nanometer sheet super capacitor
Device electrode material.
Preferably, the bismuth-containing compound is five water bismuth nitrates.
Preferably, the carbonization melamine foamed plastic total volume is 13.0 × 2.5 × 2.5 cm3, reaction volume is 1 × 1
×0.2 cm3。
Preferably, the hydrothermal temperature is 140-170 DEG C, and the reaction time is 4-9 h.
Preferably, the annealing condition are as follows: 200-400 DEG C of annealing temperature, annealing time 1-3 h, heating rate 2
℃/min。
Preferably, the inert gas is argon gas.
Preferably, the cleaning agent is one or more of water, nitric acid, acetic acid, glycerol, acetone.
Preferably, the quality of the five water bismuth nitrate is 0.97-2.0 g.
Bi2O3Harmless, small toxicity, band gap are wide, oxide ion conductive is good and suitable negative operation window and are considered as
Important transition metal oxide, its theoretical specific capacity with higher are more than 1300 Fg-1, have high electrochemical stability,
The advantages that high redox reversible and high cyclical stability, therefore the heterozygosis for being chosen for carbonization melamine foamed plastic is former
Son, be carbonized melamine foamed plastic surface vertical-growth Bi2O3Nanometer sheet, and be interconnected with one another, in Bi2O3It is formed in sheaths
Channel, these channels constitute open space, are conducive to store electrolyte, shorten the diffusion path of electrolyte ion, increase electricity
The contact area of Xie Zhiyu material improves capacitor, and reaction mechanism figure such as attached drawing 8, in the process: melamine foamed plastic becomes by carbonization
At the three-dimensional porous carbon foam that N is adulterated, due to the presence of N element, the melamine foamed plastic that is carbonized passes through simple hydro-thermal reaction, will
Bismuth oxide nanometer sheet is uniformly anchored on the three-dimensional framework of carbonization melamine foamed plastic, the three-dimensional of bismuth oxide nanometer sheet and N doping
Carbon foam skeleton cooperatively forms the conductive network structure of three-dimensional interconnection, realizes quick electrons/ions transmission.
The carbonization of supercapacitor made by present invention melamine foamed plastic@Bi2O3Electrode material is shown good
Chemical property, reason are: (1) melamine foamed plastic that is carbonized is good with chemical stability, porous structure is abundant, duct is opened
Put, large specific surface area, good conductivity the advantages that, be highly suitable as the ideal carrier of transition-metal oxide, due to carbonization three
The macroporosity of poly cyanamid foam, three-dimensional porous skeleton have good electron transmission ability.(2) pass through solvent structure
Be carbonized melamine foamed plastic@Bi2O3The spatial nuclei sheath structure of nanometer sheet is conducive to store electrolyte, shortens the expansion of electrolyte ion
Approach is dissipated, increases the contact area of electrolyte and material, to improve capacitor.
The Bi that unreacted in cleaning agent removal solution is complete is utilized in step (2)3+, NO3 -, and the second being attached on product
Pure and mild ethylene glycol solvent avoids the influence to subsequent calcination, after cleaning and dry, obtains intermediate product.
This programme preparation based on carbonization melamine foamed plastic@Bi2O3Nanometer sheet electrode material for super capacitor is electronics
Transmission provides express passway, and porous structure provides good mass transfer channel for reactants and products, and is conducive to active sites
Point comes into full contact with reactant, and material structure abundance is high, large specific surface area, therefore there is good electric conductivity to be conducive to electrolyte
Storage, shorten the diffusion path of electrolyte ion, increase the contact area of electrolyte and material, to improve capacitor.
Compared with prior art, the present invention is the original on carbonization melamine foamed plastic by a kind of simple solvent-thermal method
Position growth Bi2O3Nanometer sheet, forms spatial nuclei sheath structure, which has good electric conductivity and high specific surface area, have
Conducive to the storage of electrolyte, shorten the diffusion path of electrolyte ion, increases the contact area of electrolyte and material, to improve
Capacitor, and the use of binder and conductivity additive is avoided when constructing capacitor, material obtained can be made soft
Property electrode, preparation method is simple, non-hazardous conditions, at low cost.
Detailed description of the invention
Fig. 1 is the SEM figure of the electrode material of CF prepared by embodiment 1；
Fig. 2 is CF@Bi prepared by embodiment 12O3The SEM of electrode material schemes；
Fig. 3 is CF@Bi prepared by embodiment 12O3The TEM of electrode material schemes；
Fig. 4 is CF@Bi prepared by embodiment 12O3The XRD diagram of electrode material；
Fig. 5 is CF@Bi prepared by embodiment 12O3The Raman of electrode material schemes；
Fig. 6 is CF@Bi prepared by embodiment 12O3With the cyclic voltammogram of CF electrode material；
Fig. 7 is CF@Bi prepared by embodiment 12O3With the charging and discharging curve figure of CF electrode material；
Fig. 8 is growth in situ Bi on carbonization melamine foamed plastic2O3The mechanism figure of nanometer sheet.
Specific embodiment
The following is specific embodiments of the present invention, and technical scheme of the present invention will be further described, but the present invention is simultaneously
It is not limited to these embodiments.
Embodiment 1
(1) by melamine foamed plastic sample (13.0 × 2.5 × 2.5 cm3) on quartz boat, and be placed in tube furnace.?
Before pyrolysis, sample is passed through argon gas 10-30 min at room temperature, and argon flow is 1000 standard cubic centimeters per minutes, drains in pipe
Air.Melamine foamed plastic is pyrolyzed 1-2 h at 600-800 DEG C, and heating rate is 5-10 DEG C/min, reaches maximum temperature,
Sample temperature slowly returns and drops to room temperature after pyrolysis.Entire heating and cooling procedure are in 500-1000 standard cubic centimeter/min
Continuous argon gas under carry out.
(2) it weighs 0.97 g, five water bismuth nitrate to be dissolved in ethyl alcohol and ethylene glycol mixture, stirring and dissolving obtains dispersion liquid.
(3) carbonization melamine foamed plastic obtained in step (1) is cut into a fritter and is put into polytetrafluoroethylene (PTFE) hydro-thermal reaction
In kettle, and uniform dispersion obtained in step (2) is poured into wherein, carries out hydro-thermal reaction.Hydrothermal temperature is 160 DEG C,
Reaction time is 5 h.
(4) after the sample in step (3) being cooled to room temperature take out and repeatedly rinsed with deionized water and ethyl alcohol, remove from
Sub- residue, and it is dry.
(5) sample dried in step (4) is put into tube furnace, annealing is obtained with carbon under argon atmosphere
Change melamine foamed plastic is substrate grown Bi2O3The electrode material of nanometer sheet.
Embodiment 2
(1) by melamine foamed plastic sample (13.0 × 2.5 × 2.5 cm3) on quartz boat, and be placed in tube furnace.?
Before pyrolysis, sample is passed through argon gas 10-30 min at room temperature, and argon flow is 1000 standard cubic centimeters per minutes, drains in pipe
Air.Melamine foamed plastic is pyrolyzed 1-2 h at 600-800 DEG C, and heating rate is 5-10 DEG C/min, reaches maximum temperature,
Sample temperature slowly goes back up to 25-40 DEG C after pyrolysis.Entire heating and cooling procedure be 500-1000 standard cubic centimeter/
It is carried out under the continuous argon gas of min.
(2) it weighs 1.455 g, five water bismuth nitrate to be dissolved in ethyl alcohol and ethylene glycol mixture, stirring and dissolving obtains dispersion liquid.
(3) carbonization melamine foamed plastic obtained in step (1) is cut into a fritter and is put into polytetrafluoroethylene (PTFE) hydro-thermal reaction
In kettle, and uniform dispersion obtained in step (2) is poured into wherein, carries out hydro-thermal reaction.Hydrothermal temperature is 160 DEG C,
Reaction time is 5 h.
(4) after the sample in step (3) being cooled to room temperature take out and repeatedly rinsed with deionized water and ethyl alcohol, remove from
Sub- residue, and it is dry.
(5) sample dried in step (4) is put into tube furnace, annealing is obtained with three under argon atmosphere
Poly cyanamid foam is substrate grown Bi2O3The electrode material of nanometer sheet.
Embodiment 3
(1) by melamine foamed plastic sample (13.0 × 2.5 × 2.5 cm3) on quartz boat, and be placed in tube furnace.?
Before pyrolysis, sample is passed through argon gas 10-30 min at room temperature, and argon flow is 1000 standard cubic centimeters per minutes, drains in pipe
Air.Melamine foamed plastic is pyrolyzed 1-2 h at 600-800 DEG C, and heating rate is 5-10 DEG C/min, reaches maximum temperature,
Sample temperature slowly goes back up to 25-40 DEG C after pyrolysis.Entire heating and cooling procedure be 500-1000 standard cubic centimeter/
It is carried out under the continuous argon gas of min.
(2) it weighs 1.94 g, five water bismuth nitrate to be dissolved in ethyl alcohol and ethylene glycol mixture, stirring and dissolving obtains dispersion liquid.
(3) carbonization melamine foamed plastic obtained in step (1) is cut into a fritter and is put into polytetrafluoroethylene (PTFE) hydro-thermal reaction
In kettle, and uniform dispersion obtained in step (2) is poured into wherein, carries out hydro-thermal reaction.Hydrothermal temperature is 160 DEG C,
Reaction time is 5 h.
(4) after the sample in step (3) being cooled to room temperature take out and repeatedly rinsed with deionized water and ethyl alcohol, remove from
Sub- residue, and it is dry.
(5) sample dried in step (4) is put into tube furnace, annealing is obtained with carbon under argon atmosphere
Change melamine foamed plastic is substrate grown Bi2O3The electrode material of nanometer sheet.
Embodiment 4
(1) by melamine foamed plastic sample (13.0 × 2.5 × 2.5 cm3) on quartz boat, and be placed in tube furnace.?
Before pyrolysis, sample is passed through argon gas 10-30 min at room temperature, and argon flow is 1000 standard cubic centimeters per minutes, drains in pipe
Air.Melamine foamed plastic is pyrolyzed 1-2 h at 600-800 DEG C, and heating rate is 5-10 DEG C/min, reaches maximum temperature,
Sample temperature slowly goes back up to 25-40 DEG C after pyrolysis.Entire heating and cooling procedure be 500-1000 standard cubic centimeter/
It is carried out under the continuous argon gas of min.
(2) it weighs 0.97 g, five water bismuth nitrate to be dissolved in ethyl alcohol and ethylene glycol mixture, stirring and dissolving obtains dispersion liquid.
(3) carbonization melamine foamed plastic obtained in step (1) is cut into a fritter and is put into polytetrafluoroethylene (PTFE) hydro-thermal reaction
In kettle, and uniform dispersion obtained in step (2) is poured into wherein, carries out hydro-thermal reaction.Hydrothermal temperature is 160 DEG C,
Reaction time is 7 h.
(4) after the sample in step (3) being cooled to room temperature take out and repeatedly rinsed with deionized water and ethyl alcohol, remove from
Sub- residue, and it is dry.
(5) sample dried in step (4) is put into tube furnace, annealing is obtained with carbon under argon atmosphere
Change melamine foamed plastic is substrate grown Bi2O3The electrode material of nanometer sheet.
Embodiment 5
(1) by melamine foamed plastic sample (13.0 × 2.5 × 2.5 cm3) on quartz boat, and be placed in tube furnace.?
Before pyrolysis, sample is passed through argon gas 10-30 min at room temperature, and argon flow is 1000 standard cubic centimeters per minutes, drains in pipe
Air.Melamine foamed plastic is pyrolyzed 1-2 h at 600-800 DEG C, and heating rate is 5-10 DEG C/min, reaches maximum temperature,
Sample temperature slowly goes back up to 25-40 DEG C after pyrolysis.Entire heating and cooling procedure be 500-1000 standard cubic centimeter/
It is carried out under the continuous argon gas of min.
(2) it weighs 0.97 g, five water bismuth nitrate to be dissolved in ethyl alcohol and ethylene glycol mixture, stirring and dissolving obtains dispersion liquid.
(3) carbonization melamine foamed plastic obtained in step (1) is cut into a fritter and is put into polytetrafluoroethylene (PTFE) hydro-thermal reaction
In kettle, and uniform dispersion obtained in step (2) is poured into wherein, carries out hydro-thermal reaction.Hydrothermal temperature is 160 DEG C,
Reaction time is 9 h.
(4) after the sample in step (3) being cooled to room temperature take out and repeatedly rinsed with deionized water and ethyl alcohol, remove from
Sub- residue, and it is dry.
(5) sample dried in step (4) is put into tube furnace, annealing is obtained with carbon under argon atmosphere
Change melamine foamed plastic is substrate grown Bi2O3The electrode material of nanometer sheet.
Embodiment 6
(1) by melamine foamed plastic sample (13.0 × 2.5 × 2.5 cm3) on quartz boat, and be placed in tube furnace.?
Before pyrolysis, sample is passed through argon gas 10-30 min at room temperature, and argon flow is 1000 standard cubic centimeters per minutes, drains in pipe
Air.Melamine foamed plastic is pyrolyzed 1-2 h at 900 DEG C, and heating rate is 5-10 DEG C/min, reaches maximum temperature, is pyrolyzed
Sample temperature slowly goes back up to 25-40 DEG C afterwards.Entire heating and cooling procedure are in 500-1000 standard cubic centimeter/min
Continuous argon gas under carry out.
(2) it weighs 0.97 g, five water bismuth nitrate to be dissolved in ethyl alcohol and ethylene glycol mixture, stirring and dissolving obtains dispersion liquid.
(3) carbonization melamine foamed plastic obtained in step (1) is cut into a fritter and is put into polytetrafluoroethylene (PTFE) hydro-thermal reaction
In kettle, and uniform dispersion obtained in step (2) is poured into wherein, carries out hydro-thermal reaction.Hydrothermal temperature is 170 DEG C,
Reaction time is 5 h.
(4) after the sample in step (3) being cooled to room temperature take out and repeatedly rinsed with deionized water and ethyl alcohol, remove from
Sub- residue, and it is dry.
(5) sample dried in step (4) is put into tube furnace, annealing is obtained with carbon under argon atmosphere
Change melamine foamed plastic is substrate grown Bi2O3The electrode material of nanometer sheet.
Embodiment 7
(1) by melamine foamed plastic sample (13.0 × 2.5 × 2.5 cm3) on quartz boat, and be placed in tube furnace.?
Before pyrolysis, sample is passed through argon gas 10-30 min at room temperature, and argon flow is 1000 standard cubic centimeters per minutes, drains in pipe
Air.Melamine foamed plastic is pyrolyzed 1-2 h at 900 DEG C, and heating rate is 5-10 DEG C/min, reaches maximum temperature, is pyrolyzed
Sample temperature slowly goes back up to 25-40 DEG C afterwards.Entire heating and cooling procedure are in 500-1000 standard cubic centimeter/min
Continuous argon gas under carry out.
(2) it weighs 0.97 g, five water bismuth nitrate to be dissolved in ethyl alcohol and ethylene glycol mixture, stirring and dissolving obtains dispersion liquid.
(3) carbonization melamine foamed plastic obtained in step (1) is cut into a fritter and is put into polytetrafluoroethylene (PTFE) hydro-thermal reaction
In kettle, and uniform dispersion obtained in step (2) is poured into wherein, carries out hydro-thermal reaction.Hydrothermal temperature is 170 DEG C,
Reaction time is 7 h.
(4) after the sample in step (3) being cooled to room temperature take out and repeatedly rinsed with deionized water and ethyl alcohol, remove from
Sub- residue, and it is dry.
(5) sample dried in step (4) is put into tube furnace, annealing is obtained with carbon under argon atmosphere
Change melamine foamed plastic is substrate grown Bi2O3The electrode material of nanometer sheet.
The electrode material of above-mentioned preparation carries out electrochemical property test and characterization:
Fig. 1 is the microscopic appearance of carbonization melamine foam material prepared by embodiment 1, finds out carbonization melamine foamed plastic in figure
With three-dimensional interconnection network structure, surface smooth planar, this structure interconnected is conducive to the migration of electrolyte, while
Be conducive to Bi2O3Homoepitaxial of the nanometer sheet on carbonization melamine foamed plastic skeleton.
Bismuth nitrate resolves into Bi after simple solvent heat treatment in embodiment 1 as can be seen from Figures 2 and 32O3It receives
Simultaneously homoepitaxial is being carbonized on melamine foamed plastic skeleton rice piece, and assembling forms porous structure, and nothing is apparent to accumulate and be overlapped.
CF@Bi is determined with X-ray diffraction (XRD) method2O3Object phase, result is as shown in Figure 4.In addition to one from CF spreads out
It penetrates outside peak, is diffraction maximum there are four 28 °, 32.4 °, 46.5 °, 55.1 ° places in 2 θ values, corresponding to (111) of CF@Bi2O3,
(200), (220) and (311) crystal face, these values can be very good to be directed toward CF@Bi2O3Cubic phase (JCPDS, No. 27-
0052).
CF@Bi2O3Raman spectrum as shown in figure 5, can be observed other than the peak D and the peak G that are generated by CF by Fig. 4,
305 cm-1There is Bi at place2O3Characteristic peak.Fig. 4 and Fig. 5 can prove the pure Bi in CF2O3Presence.
Electro-chemical test carries out in three-electrode system, and working electrode is carbonization melamine foamed plastic and carbonization melamine
Foam@Bi2O3, it is platinum filament to electrode that reference electrode, which is mercury/mercuric oxide electrode, and electrolyte is the KOH solution of 1 M, passes through circulation
Voltammetry and constant current charge-discharge method test the capacitive property of sample.
As can be seen from Figure 6 the carbonization melamine foamed plastic and carbonization melamine foamed plastic@prepared respectively with embodiment 1
Bi2O3For working electrode, the cyclic voltammetry carried out in 1 M KOH electrolyte as the working electrode of three-electrode system.Figure
A shows carbonization melamine foamed plastic@Bi2O3Cyclic voltammetry curve under different scanning rates.In -0.95 to 0 v electrochemical window
Between mouthful, it observed a series of specific Bi2O3Feature redox peaks, it then follows faraday's reaction equation, it is as follows:
,
With the increase of sweep speed, be carbonized melamine foamed plastic@Bi2O3Electrode shows good capacitance behavior and high magnification
Performance, CV curve keep good.In addition, current-responsive increases with the increase of sweep speed, in the sweep speed of 80 mv/s
Under, also observe that apparent redox peaks, and be displaced smaller, it is shown that preferable stability.Figure B is carbonization melamine
Foam and carbonization melamine foamed plastic@Bi2O3Cyclic voltammetry curve of the electrode on -0.95 to 0 v potential window, sweep speed
For 5 mv/s.The curve has apparent fake capacitance feature, has a pair of specific redox peaks, shows capacitance characteristic by method
Redox reaction is drawn to control, this is very different with the CV curve of carbonization melamine foamed plastic.Show the melamine bubble that is carbonized
Foam@Bi2O3The current density of electrode is much higher than original carbonization melamine foamed plastic, illustrate the capacitor of combination electrode mainly from
In Bi2O3Fake capacitance material.
As can be seen from Figure 7 the carbonization melamine foamed plastic and carbonization melamine foamed plastic@prepared respectively with embodiment 1
Bi2O3For working electrode, the constant current charge-discharge carried out in 1 M KOH electrolyte as the working electrode of three-electrode system is surveyed
Examination.Fig. 5 A shows carbonization melamine foamed plastic@Bi under different current densities2O3The constant current charge-discharge curve of electrode.Charge and discharge
Curve plateau coincide well with the redox peaks in CV curve.When current density is 1 mA/cm2-10 mA/cm2When, face electricity
Hold and is down to 434.7 mF/cm by 951.32.Figure B is carbonization melamine foamed plastic and carbonization melamine foamed plastic@Bi2O3Electrode-
Constant current charge-discharge curve on 0.95 to 0 v potential window, current density are 1 mA/cm2.As can be seen from the figure it is carbonized three
Poly cyanamid foam@Bi2O3The capacitor of electrode is much higher than original carbonization melamine foamed plastic.
The carbonization of supercapacitor made by present invention melamine foamed plastic@Bi2O3Electrode material is shown good
Chemical property, reason are: (1) melamine foamed plastic that is carbonized is good with chemical stability, porous structure is abundant, duct is opened
Put, large specific surface area, good conductivity the advantages that, be highly suitable as the ideal carrier of transition-metal oxide, due to carbonization three
The macroporosity of poly cyanamid foam, three-dimensional porous skeleton have good electron transmission ability.(2) pass through solvent structure
Be carbonized melamine foamed plastic@Bi2O3The spatial nuclei sheath structure of nanometer sheet is conducive to store electrolyte, shortens the expansion of electrolyte ion
Approach is dissipated, increases the contact area of electrolyte and material, to improve capacitor.
It is not directed to place above, is suitable for the prior art.Specific embodiment described herein is only to this hair
Bright spirit gives an example.Those skilled in the art can do described specific embodiment various each
The mode that the modify or supplement or adopt of sample is similar substitutes, and however, it does not deviate from the spirit of the invention or surmounts appended right wants
Seek range defined in book.
Claims (8)
1. one kind is based on carbonization melamine foamed plastic@Bi2O3The preparation method of nanometer sheet electrode material for super capacitor, feature
It is, comprising the following steps: (1) water-soluble bismuth salt and carbonization melamine foamed plastic are subjected to hydro-thermal reaction；(2) cleaning agent removes
Remaining solvent and Bi3+、NO3 -, obtain intermediate product；(3) under an inert atmosphere, the intermediate product is made annealing treatment to get carbonization
Melamine foamed plastic@Bi2O3Nanometer sheet electrode material for super capacitor.
2. according to claim 1 a kind of based on carbonization melamine foamed plastic@Bi2O3Nanometer sheet electrode of super capacitor material
The preparation method of material, which is characterized in that the bismuth-containing compound is five water bismuth nitrates.
3. according to claim 1 a kind of based on carbonization melamine foamed plastic@Bi2O3Nanometer sheet electrode of super capacitor material
The preparation method of material, which is characterized in that the carbonization melamine foamed plastic total volume is 13.0 × 2.5 × 2.5 cm3, reactant
Product is 1 × 1 × 0.2 cm3。
4. according to claim 1 a kind of based on carbonization melamine foamed plastic@Bi2O3Nanometer sheet electrode of super capacitor material
The preparation method of material, which is characterized in that the hydrothermal temperature is 140-170 DEG C, and the reaction time is 4-9 h.
5. according to claim 1 a kind of based on carbonization melamine foamed plastic@Bi2O3Nanometer sheet electrode of super capacitor material
The preparation method of material, which is characterized in that the annealing condition are as follows: 200-400 DEG C of annealing temperature, annealing time 1-3 h,
2 DEG C/min of heating rate.
6. according to claim 1 a kind of based on carbonization melamine foamed plastic@Bi2O3Nanometer sheet electrode of super capacitor material
The preparation method of material, which is characterized in that the inert gas is one of argon gas, neon, nitrogen or at least two kinds.
7. according to claim 1 a kind of based on carbonization melamine foamed plastic@Bi2O3Nanometer sheet electrode of super capacitor material
The preparation method of material, which is characterized in that the cleaning agent is one or more of water, nitric acid, acetic acid, glycerol, acetone.
8. according to claim 1 a kind of based on carbonization melamine foamed plastic@Bi2O3Nanometer sheet electrode of super capacitor material
The preparation method of material, which is characterized in that the quality of the five water bismuth nitrate is 0.97-2.0 g.
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| CN111128561A (en) * | 2019-12-31 | 2020-05-08 | 武汉工程大学 | Flexible asymmetric solid-state supercapacitor with nanostructure and preparation method thereof |
| CN112951612A (en) * | 2021-02-26 | 2021-06-11 | 同济大学 | Aqueous sodium-ion battery capacitor hybrid device with bismuth oxide cathode and preparation method thereof |
| CN113277554A (en) * | 2021-05-21 | 2021-08-20 | 厦门理工学院 | Bismuth oxide/titanium carbide composite material and preparation method thereof |
| CN115818790A (en) * | 2022-11-08 | 2023-03-21 | 中国石油大学(华东) | Three-dimensional porous metal-free electrode, and preparation method and application thereof |
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| CN115818790A (en) * | 2022-11-08 | 2023-03-21 | 中国石油大学(华东) | Three-dimensional porous metal-free electrode, and preparation method and application thereof |
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