CN110203931A - A method of high pressure water system electrode material for super capacitor is prepared using pomelo peel - Google Patents
A method of high pressure water system electrode material for super capacitor is prepared using pomelo peel Download PDFInfo
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- CN110203931A CN110203931A CN201910583847.XA CN201910583847A CN110203931A CN 110203931 A CN110203931 A CN 110203931A CN 201910583847 A CN201910583847 A CN 201910583847A CN 110203931 A CN110203931 A CN 110203931A
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- pomelo peel
- high pressure
- electrode material
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
- C01B32/30—Active carbon
- C01B32/312—Preparation
- C01B32/318—Preparation characterised by the starting materials
- C01B32/324—Preparation characterised by the starting materials from waste materials, e.g. tyres or spent sulfite pulp liquor
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
- C01B32/30—Active carbon
- C01B32/312—Preparation
- C01B32/342—Preparation characterised by non-gaseous activating agents
- C01B32/348—Metallic compounds
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/22—Electrodes
- H01G11/24—Electrodes characterised by structural features of the materials making up or comprised in the electrodes, e.g. form, surface area or porosity; characterised by the structural features of powders or particles used therefor
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/22—Electrodes
- H01G11/30—Electrodes characterised by their material
- H01G11/32—Carbon-based
- H01G11/34—Carbon-based characterised by carbonisation or activation of carbon
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/22—Electrodes
- H01G11/30—Electrodes characterised by their material
- H01G11/32—Carbon-based
- H01G11/44—Raw materials therefor, e.g. resins or coal
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/13—Energy storage using capacitors
Abstract
The invention discloses a kind of methods using pomelo peel preparation high pressure water system electrode material for super capacitor, more particularly to new energy field of material technology, include the following steps: feeding, pelleting, mixing clamp dog, charing process and carbonizing production processing, it is wherein then using domestic waste pomelo peel as raw material in feeding, using potassium hydroxide as activator, potassium resource is provided for Carbon Materials simultaneously, wherein using distilled water as solvent.The method of the present invention preparation process is simple, reliable, environmentally protective, and obtained multiporous biological matter Carbon Materials have excellent double layer capacitor feature and chemical property, and have the characteristics that service life cycle is long, it is a kind of ideal electrode material, there is vast application prospect on supercapacitor field, is especially suitable for industrialized production.
Description
Technical field
The present invention relates to new energy field of material technology, it is more particularly related to which a kind of utilize shaddock leather
The method of standby high pressure water system electrode material for super capacitor.
Background technique
The continuous consumption of fossil energy, not only causes energy crisis, also brings a series of environmental problems.Therefore, too
The clean energy resource of the sustainable developments such as positive energy, wind energy is gradually developed and utilized.Along with the exploitation of these clean energy resourcies, efficiently
Energy storage device be gradually developed and upgrade, supercapacitor is widely used in hybrid power as new green energy equipment
Electric vehicle and portable electronic product field.Chief component of the electrode material as energy storage device, to energy storage device
Chemical property plays decisive role.Carbon based material due at low cost, excellent conductivity, stability is good the features such as used extensively
The electrode material for making novel energy storage apparatus becomes the hot spot in current electrochemical research field.Therefore, utilization is from a wealth of sources, price
Cheap, the reproducible biological material of green prepares the heat that high-performance biomass Carbon Materials are recent domestic focus of attention
Point.Pomelo peel is the byproduct in shaddock process, and yield accounts for about the 30%-40% of shaddock quality.China's shaddock resource
Abundant, annual output is more than 2,000,000 tons, but most pomelo peels are directly abandoned or burned during processing (or edible), no
It only results in waste of resources, but also environmental pollution can be brought.Pomelo peel contain a large amount of cellulose, hemicellulose, lignin and
Polysaccharide etc., quality is loose, has spongy porous structure, is a kind of quality raw materials for preparing activated carbon from activated sludge.Currently, with
Pomelo peel is raw material, and the research that activated carbon from activated sludge is prepared by a series of physical or chemical method has been reported that.
Therefore the present invention is using using domestic refuse pomelo peel as raw material, using KOH as activator, using simple biomass
Pyrolysis charring technology prepares porous carbon material and is used as high pressure water system electrode material for super capacitor for it in electrochemical energy storage
The application in field is of great significance.
Summary of the invention
In order to overcome the drawbacks described above of the prior art, the embodiment of the present invention, which provides, a kind of prepares high pressure water using pomelo peel
It is the method for electrode material for super capacitor, passes through.
To achieve the above object, the invention provides the following technical scheme: a kind of prepare high pressure aqueous super using pomelo peel
The method of capacitor electrode material, includes the following steps:
A, it feeding: using domestic waste pomelo peel as raw material, using potassium hydroxide as activator, while being provided for Carbon Materials
Potassium resource, wherein using distilled water as solvent；
B, it makes pellet: pomelo peel being subjected to high pressure washing after repetition flushes three times pomelo peel using clear water and uses hot wind
Machine carries out pomelo peel air-dried, and then, the pomelo peel after air-drying is placed on the inside of pulverizer and is stirred crushing, is made
It is granular；
C, it mixes clamp dog: at a certain temperature, potassium hydroxide being put into agitator with pomelo peel particle and is sufficiently mixed,
Suitable distilled water is added as solvent then to inside, potassium hydroxide, pomelo peel particle and water is stirred, by it
It is placed in low temperature environment, after freeze-drying, obtains blocky yellow solid；
D, charing process: by the yellow solid after drying, high temperature carbonization processing is carried out under argon atmosphere, is naturally cooled to
Room temperature obtains the carbonizing production of black, and the heating rate in carbonization process is 5 DEG C/min, and constant temperature activation time is 1h；
E, carbonizing production is handled: the carbonizing production of the black dilute hydrochloric acid of 5mol/L being impregnated for 24 hours, then is distilled with a large amount of
Water cleaning repeatedly, removes the ingredients such as remaining hydrochloric acid and potassium hydroxide, is dried under high temperature environment, products therefrom
As with the biomass carbon material of porous structure.
In a preferred embodiment, the mass ratio of the potassium hydroxide in the reclaiming process and pomelo peel is 1:1.
In a preferred embodiment, the temperature during the charing process is 600-900 DEG C.
In a preferred embodiment, the motor speed of pulverizer is 1000n/min during the pelleting.
In a preferred embodiment, the distillation water content as solvent in the mixing clamp dog is 200ml.
In a preferred embodiment, it is dried during the pelleting using air dry oven, air-dries temperature
Degree is maintained between 70-80 DEG C, and air-dry time is maintained at for 24 hours.
In a preferred embodiment, crushed material is filtered using 200 mesh filter screens during the pelleting,
Internal powder is rejected with this.
In a preferred embodiment, the hot environment in feeding mixed process is 110-120 DEG C, and drying time is
5-10min。
Technical effect and advantage of the invention:
The method of the present invention preparation process is simple, reliable, environmentally protective, and obtained multiporous biological matter Carbon Materials are with excellent
Double layer capacitor feature and chemical property, and have the characteristics that service life cycle is long, be a kind of ideal electrode material,
There is vast application prospect on supercapacitor field, is especially suitable for industrialized production.
Detailed description of the invention
Fig. 1 is the charge and discharge electrograph for three electrode test of biological carbon materials that present invention preparation is formed.
Fig. 2 is two electrode cycle voltammograms of the biological carbon materials that present invention preparation is formed.
Fig. 3 is two electrode charge and discharge figures of the biological carbon materials that present invention preparation is formed.
Fig. 4 is two electrode AC impedance figures of the biological carbon materials that present invention preparation is formed.
Fig. 5 is that the progress of two electrodes charge and discharge 10000 times cycle life of the biological carbon materials that present invention preparation is formed is surveyed
Test result figure.
Specific embodiment
Below in conjunction with the embodiment in the present invention, and the attached drawing 1-5 in the embodiment of the present invention is combined, to of the invention real
The technical solution applied in example is clearly and completely described, it is clear that described embodiment is only that present invention a part is implemented
Example, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creativeness
Every other embodiment obtained, shall fall within the protection scope of the present invention under the premise of labour.
Embodiment 1:
The present invention provides a kind of methods using pomelo peel preparation high pressure water system electrode material for super capacitor, including such as
Lower step:
A, it feeding: using domestic waste pomelo peel as raw material, using potassium hydroxide as activator, while being provided for Carbon Materials
Potassium resource, wherein using distilled water as solvent；
B, it makes pellet: pomelo peel being subjected to high pressure washing after repetition flushes three times pomelo peel using clear water and uses hot wind
Machine carries out pomelo peel air-dried, is dried using air dry oven, and air-dried temperature is maintained between 70 DEG C, and air-dry time is kept
For 24 hours, then, the inside that the pomelo peel after air-drying is placed on pulverizer is stirred crushing, the motor speed of pulverizer is
Pomelo peel is made graininess, and is filtered using 200 mesh filter screens to crushed material by 1000n/min, and internal powder is rejected with this
End；
C, it mixes clamp dog: at a certain temperature, potassium hydroxide being put into pomelo peel particle according to the mass ratio of 1:1 and is stirred
It mixes in bucket and is sufficiently mixed, then to the internal distilled water for adding 200ml content as solvent, by potassium hydroxide, pomelo peel
Particle is stirred with water, is placed it in low temperature environment, after freeze-drying, obtains blocky yellow solid；
D, charing process: by the yellow solid after drying, high temperature carbonization processing is carried out under argon atmosphere, is naturally cooled to
Room temperature obtains the carbonizing production of black, and the heating rate in carbonization process is 5 DEG C/min, and constant temperature activation time is 1h；
E, carbonizing production is handled: the carbonizing production of the black dilute hydrochloric acid of 5mol/L being impregnated for 24 hours, then is distilled with a large amount of
Water cleaning repeatedly, removes the ingredients such as remaining hydrochloric acid and potassium hydroxide, is dried under high temperature environment, high temperature
Environment is 110 DEG C, drying time 5min, and products therefrom is the biomass carbon material with porous structure.
Further, the temperature during the charing process is 600 DEG C.
Embodiment 2:
The present invention provides a kind of methods using pomelo peel preparation high pressure water system electrode material for super capacitor, including such as
Lower step:
A, it feeding: using domestic waste pomelo peel as raw material, using potassium hydroxide as activator, while being provided for Carbon Materials
Potassium resource, wherein using distilled water as solvent；
B, it makes pellet: pomelo peel being subjected to high pressure washing after repetition flushes three times pomelo peel using clear water and uses hot wind
Machine carries out pomelo peel air-dried, is dried using air dry oven, and air-dried temperature is maintained between 70 DEG C, and air-dry time is kept
For 24 hours, then, the inside that the pomelo peel after air-drying is placed on pulverizer is stirred crushing, the motor speed of pulverizer is
Pomelo peel is made graininess, and is filtered using 200 mesh filter screens to crushed material by 1000n/min, and internal powder is rejected with this
End；
C, it mixes clamp dog: at a certain temperature, potassium hydroxide being put into pomelo peel particle according to the mass ratio of 1:1 and is stirred
It mixes in bucket and is sufficiently mixed, then to the internal distilled water for adding 200ml content as solvent, by potassium hydroxide, pomelo peel
Particle is stirred with water, is placed it in low temperature environment, after freeze-drying, obtains blocky yellow solid；
D, charing process: by the yellow solid after drying, high temperature carbonization processing is carried out under argon atmosphere, is naturally cooled to
Room temperature obtains the carbonizing production of black, and the heating rate in carbonization process is 5 DEG C/min, and constant temperature activation time is 1h；
E, carbonizing production is handled: the carbonizing production of the black dilute hydrochloric acid of 5mol/L being impregnated for 24 hours, then is distilled with a large amount of
Water cleaning repeatedly, removes the ingredients such as remaining hydrochloric acid and potassium hydroxide, is dried under high temperature environment, high temperature
Environment is 110 DEG C, drying time 5min, and products therefrom is the biomass carbon material with porous structure.
Further, the temperature during the charing process is 650 DEG C.
Embodiment 3:
The present invention provides a kind of methods using pomelo peel preparation high pressure water system electrode material for super capacitor, including such as
Lower step:
A, it feeding: using domestic waste pomelo peel as raw material, using potassium hydroxide as activator, while being provided for Carbon Materials
Potassium resource, wherein using distilled water as solvent；
B, it makes pellet: pomelo peel being subjected to high pressure washing after repetition flushes three times pomelo peel using clear water and uses hot wind
Machine carries out pomelo peel air-dried, is dried using air dry oven, and air-dried temperature is maintained between 80 DEG C, and air-dry time is kept
For 24 hours, then, the inside that the pomelo peel after air-drying is placed on pulverizer is stirred crushing, the motor speed of pulverizer is
Pomelo peel is made graininess, and is filtered using 200 mesh filter screens to crushed material by 1000n/min, and internal powder is rejected with this
End；
C, it mixes clamp dog: at a certain temperature, potassium hydroxide being put into pomelo peel particle according to the mass ratio of 1:1 and is stirred
It mixes in bucket and is sufficiently mixed, then to the internal distilled water for adding 200ml content as solvent, by potassium hydroxide, pomelo peel
Particle is stirred with water, is placed it in low temperature environment, after freeze-drying, obtains blocky yellow solid；
D, charing process: by the yellow solid after drying, high temperature carbonization processing is carried out under argon atmosphere, is naturally cooled to
Room temperature obtains the carbonizing production of black, and the heating rate in carbonization process is 5 DEG C/min, and constant temperature activation time is 1h；
E, carbonizing production is handled: the carbonizing production of the black dilute hydrochloric acid of 5mol/L being impregnated for 24 hours, then is distilled with a large amount of
Water cleaning repeatedly, removes the ingredients such as remaining hydrochloric acid and potassium hydroxide, is dried under high temperature environment, high temperature
Environment is 120 DEG C, drying time 10min, and products therefrom is the biomass carbon material with porous structure.
Further, the temperature during the charing process is 700 DEG C.
Embodiment 4:
The present invention provides a kind of methods using pomelo peel preparation high pressure water system electrode material for super capacitor, including such as
Lower step:
A, it feeding: using domestic waste pomelo peel as raw material, using potassium hydroxide as activator, while being provided for Carbon Materials
Potassium resource, wherein using distilled water as solvent；
B, it makes pellet: pomelo peel being subjected to high pressure washing after repetition flushes three times pomelo peel using clear water and uses hot wind
Machine carries out pomelo peel air-dried, is dried using air dry oven, and air-dried temperature is maintained between 75 DEG C, and air-dry time is kept
For 24 hours, then, the inside that the pomelo peel after air-drying is placed on pulverizer is stirred crushing, the motor speed of pulverizer is
Pomelo peel is made graininess, and is filtered using 200 mesh filter screens to crushed material by 1000n/min, and internal powder is rejected with this
End；
C, it mixes clamp dog: at a certain temperature, potassium hydroxide being put into pomelo peel particle according to the mass ratio of 1:1 and is stirred
It mixes in bucket and is sufficiently mixed, then to the internal distilled water for adding 200ml content as solvent, by potassium hydroxide, pomelo peel
Particle is stirred with water, is placed it in low temperature environment, after freeze-drying, obtains blocky yellow solid；
D, charing process: by the yellow solid after drying, high temperature carbonization processing is carried out under argon atmosphere, is naturally cooled to
Room temperature obtains the carbonizing production of black, and the heating rate in carbonization process is 5 DEG C/min, and constant temperature activation time is 1h；
E, carbonizing production is handled: the carbonizing production of the black dilute hydrochloric acid of 5mol/L being impregnated for 24 hours, then is distilled with a large amount of
Water cleaning repeatedly, removes the ingredients such as remaining hydrochloric acid and potassium hydroxide, is dried under high temperature environment, high temperature
Environment is 115 DEG C, drying time 5min, and products therefrom is the biomass carbon material with porous structure.
Further, the temperature during the charing process is 750 DEG C.
Embodiment 5:
The present invention provides a kind of methods using pomelo peel preparation high pressure water system electrode material for super capacitor, including such as
Lower step:
A, it feeding: using domestic waste pomelo peel as raw material, using potassium hydroxide as activator, while being provided for Carbon Materials
Potassium resource, wherein using distilled water as solvent；
B, it makes pellet: pomelo peel being subjected to high pressure washing after repetition flushes three times pomelo peel using clear water and uses hot wind
Machine carries out pomelo peel air-dried, is dried using air dry oven, and air-dried temperature is maintained between 80 DEG C, and air-dry time is kept
For 24 hours, then, the inside that the pomelo peel after air-drying is placed on pulverizer is stirred crushing, the motor speed of pulverizer is
Pomelo peel is made graininess, and is filtered using 200 mesh filter screens to crushed material by 1000n/min, and internal powder is rejected with this
End；
C, it mixes clamp dog: at a certain temperature, potassium hydroxide being put into pomelo peel particle according to the mass ratio of 1:1 and is stirred
It mixes in bucket and is sufficiently mixed, then to the internal distilled water for adding 200ml content as solvent, by potassium hydroxide, pomelo peel
Particle is stirred with water, is placed it in low temperature environment, after freeze-drying, obtains blocky yellow solid；
D, charing process: by the yellow solid after drying, high temperature carbonization processing is carried out under argon atmosphere, is naturally cooled to
Room temperature obtains the carbonizing production of black, and the heating rate in carbonization process is 5 DEG C/min, and constant temperature activation time is 1h；
E, carbonizing production is handled: the carbonizing production of the black dilute hydrochloric acid of 5mol/L being impregnated for 24 hours, then is distilled with a large amount of
Water cleaning repeatedly, removes the ingredients such as remaining hydrochloric acid and potassium hydroxide, is dried under high temperature environment, high temperature
Environment is 110 DEG C, drying time 5min, and products therefrom is the biomass carbon material with porous structure.
Further, the temperature during the charing process is 800 DEG C.
Embodiment 6:
The present invention provides a kind of methods using pomelo peel preparation high pressure water system electrode material for super capacitor, including such as
Lower step:
A, it feeding: using domestic waste pomelo peel as raw material, using potassium hydroxide as activator, while being provided for Carbon Materials
Potassium resource, wherein using distilled water as solvent；
B, it makes pellet: pomelo peel being subjected to high pressure washing after repetition flushes three times pomelo peel using clear water and uses hot wind
Machine carries out pomelo peel air-dried, is dried using air dry oven, and air-dried temperature is maintained between 80 DEG C, and air-dry time is kept
For 24 hours, then, the inside that the pomelo peel after air-drying is placed on pulverizer is stirred crushing, the motor speed of pulverizer is
Pomelo peel is made graininess, and is filtered using 200 mesh filter screens to crushed material by 1000n/min, and internal powder is rejected with this
End；
C, it mixes clamp dog: at a certain temperature, potassium hydroxide being put into pomelo peel particle according to the mass ratio of 1:1 and is stirred
It mixes in bucket and is sufficiently mixed, then to the internal distilled water for adding 200ml content as solvent, by potassium hydroxide, pomelo peel
Particle is stirred with water, is placed it in low temperature environment, after freeze-drying, obtains blocky yellow solid；
D, charing process: by the yellow solid after drying, high temperature carbonization processing is carried out under argon atmosphere, is naturally cooled to
Room temperature obtains the carbonizing production of black, and the heating rate in carbonization process is 5 DEG C/min, and constant temperature activation time is 1h；
E, carbonizing production is handled: the carbonizing production of the black dilute hydrochloric acid of 5mol/L being impregnated for 24 hours, then is distilled with a large amount of
Water cleaning repeatedly, removes the ingredients such as remaining hydrochloric acid and potassium hydroxide, is dried under high temperature environment, high temperature
Environment is 115 DEG C, drying time 5min, and products therefrom is the biomass carbon material with porous structure.
Further, the temperature during the charing process is 850 DEG C.
Embodiment 7:
The present invention provides a kind of methods using pomelo peel preparation high pressure water system electrode material for super capacitor, including such as
Lower step:
A, it feeding: using domestic waste pomelo peel as raw material, using potassium hydroxide as activator, while being provided for Carbon Materials
Potassium resource, wherein using distilled water as solvent；
B, it makes pellet: pomelo peel being subjected to high pressure washing after repetition flushes three times pomelo peel using clear water and uses hot wind
Machine carries out pomelo peel air-dried, is dried using air dry oven, and air-dried temperature is maintained between 80 DEG C, and air-dry time is kept
For 24 hours, then, the inside that the pomelo peel after air-drying is placed on pulverizer is stirred crushing, the motor speed of pulverizer is
Pomelo peel is made graininess, and is filtered using 200 mesh filter screens to crushed material by 1000n/min, and internal powder is rejected with this
End；
C, it mixes clamp dog: at a certain temperature, potassium hydroxide being put into pomelo peel particle according to the mass ratio of 1:1 and is stirred
It mixes in bucket and is sufficiently mixed, then to the internal distilled water for adding 200ml content as solvent, by potassium hydroxide, pomelo peel
Particle is stirred with water, is placed it in low temperature environment, after freeze-drying, obtains blocky yellow solid；
D, charing process: by the yellow solid after drying, high temperature carbonization processing is carried out under argon atmosphere, is naturally cooled to
Room temperature obtains the carbonizing production of black, and the heating rate in carbonization process is 5 DEG C/min, and constant temperature activation time is 1h；
E, carbonizing production is handled: the carbonizing production of the black dilute hydrochloric acid of 5mol/L being impregnated for 24 hours, then is distilled with a large amount of
Water cleaning repeatedly, removes the ingredients such as remaining hydrochloric acid and potassium hydroxide, is dried under high temperature environment, high temperature
Environment is 120 DEG C, drying time 5min, and products therefrom is the biomass carbon material with porous structure.
Further, the temperature during the charing process is 900 DEG C.
Biomass carbon material obtained by above-described embodiment 1-7 is taken respectively, takes seven groups altogether, and every group uses 20 biomass carbons
Material carries out the test of time used below and electric conductivity, after 3 months, wherein the service life of existing battery is then
Being is 12 hours, and electric conductivity is compared by the internal resistance of battery, and the internal resistance of general battery is 50 milliohms, with existing electricity
Pond parameter compares to obtain following data:
As seen from the above table, the temperature in embodiment 4 during charing process is 750 DEG C, the biomass carbon material being fabricated to
Service life is obviously improved, and electric conductivity is more superior.
In addition the biological carbon materials of the preparation are tested for the property, with three electrodes, two electrodes method to electrode material
It is tested, wherein three electrode and electrolyte liquors are 1M sulfuric acid, two electrode and electrolyte liquors are 1M sulfuric acid, and reference electrode is double salt bridge electrodes,
The positive and negative anodes for assembling symmetric form supercapacitor are the equal electrode material of active material quality, are 1M in two electrode and electrolyte liquors
Reach 1.4V in sulphur sodium, such as Fig. 2-3, when two electrode tests, assigns 91.74F/g in 0.2A/g current density, Fig. 1 is three electrodes
When test, 400.529F/g is assigned in 0.1A/g current density, Fig. 5 carries out charge and discharge 10000 in the case where current density is 2.5A/g
Secondary the cyclic lifetime test results embody preferable cyclical stability, specific capacity conservation rate and coulombic efficiency close to 100%, and
Three mixing, dehydration, charing simple methods are used only in experimental procedure, can be completed by simple experimental facilities.
Last: the foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, all in the present invention
Spirit and principle within, any modification, equivalent replacement, improvement and so on, should be included in protection scope of the present invention it
It is interior.
Claims (8)
1. a kind of method using pomelo peel preparation high pressure water system electrode material for super capacitor, it is characterised in that: including as follows
Step:
A, feeding: using domestic waste pomelo peel as raw material, using potassium hydroxide as activator, while potassium is provided for Carbon Materials
Source, wherein using distilled water as solvent；
B, it makes pellet: pomelo peel being subjected to high pressure washing after repetition flushes three times pomelo peel using clear water and uses air-heater pair
Pomelo peel carries out air-dried, and then, the pomelo peel after air-drying is placed on the inside of pulverizer and is stirred crushing, and particle is made
Shape；
C, it mixes clamp dog: at a certain temperature, potassium hydroxide being put into agitator with pomelo peel particle and is sufficiently mixed, then
Suitable distilled water is internally added as solvent, potassium hydroxide, pomelo peel particle and water are stirred, placed
In low temperature environment, after freeze-drying, blocky yellow solid is obtained；
D, charing process: by the yellow solid after drying, high temperature carbonization processing is carried out under argon atmosphere, naturally cools to room
Temperature obtains the carbonizing production of black, and the heating rate in carbonization process is 5 DEG C/min, and constant temperature activation time is 1h；
E, carbonizing production is handled: the carbonizing production of the black dilute hydrochloric acid of 5mol/L being impregnated for 24 hours, then clear with a large amount of distilled water
It washes and repeatedly removes the ingredients such as remaining hydrochloric acid and potassium hydroxide, be dried under high temperature environment, products therefrom is
Biomass carbon material with porous structure.
2. a kind of method using pomelo peel preparation high pressure water system electrode material for super capacitor according to claim 1,
It is characterized by: the mass ratio of potassium hydroxide and pomelo peel in the reclaiming process is 1:1.
3. a kind of method using pomelo peel preparation high pressure water system electrode material for super capacitor according to claim 1,
It is characterized by: the temperature during the charing process is 600-900 DEG C.
4. a kind of method using pomelo peel preparation high pressure water system electrode material for super capacitor according to claim 1,
It is characterized by: the motor speed of pulverizer is 1000n/min during the pelleting.
5. a kind of method using pomelo peel preparation high pressure water system electrode material for super capacitor according to claim 1,
It is characterized by: the distillation water content as solvent in the mixing clamp dog is 200ml.
6. a kind of method using pomelo peel preparation high pressure water system electrode material for super capacitor according to claim 1,
It is characterized by: being dried during the pelleting using air dry oven, air-dried temperature is maintained between 70-80 DEG C,
Air-dry time is maintained at for 24 hours.
7. a kind of method using pomelo peel preparation high pressure water system electrode material for super capacitor according to claim 1,
It is characterized by: being filtered using 200 mesh filter screens to crushed material during the pelleting, internal powder is rejected with this.
8. a kind of method using pomelo peel preparation high pressure water system electrode material for super capacitor according to claim 1,
It is characterized by: the hot environment in feeding mixed process is 110-120 DEG C, drying time 5-10min.
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| CN201910583847.XA CN110203931A (en) | 2019-07-01 | 2019-07-01 | A method of high pressure water system electrode material for super capacitor is prepared using pomelo peel |
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| CN201910583847.XA CN110203931A (en) | 2019-07-01 | 2019-07-01 | A method of high pressure water system electrode material for super capacitor is prepared using pomelo peel |
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| CN114105137A (en) * | 2021-11-04 | 2022-03-01 | 中欣环保科技有限公司 | Preparation method of composite super-capacitor carbon |
| CN115504829A (en) * | 2022-09-21 | 2022-12-23 | 南丹县畜牧管理和水产技术推广站 | Preparation method and preparation device of sugarcane tail leaf ecological organic fertilizer |
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Application publication date: 20190906 |