CN107010622A - Medium barrier plasma is modified microwave activation lignin-base carbon resistance rod preparation method - Google Patents
Medium barrier plasma is modified microwave activation lignin-base carbon resistance rod preparation method Download PDFInfo
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- CN107010622A CN107010622A CN201710259334.4A CN201710259334A CN107010622A CN 107010622 A CN107010622 A CN 107010622A CN 201710259334 A CN201710259334 A CN 201710259334A CN 107010622 A CN107010622 A CN 107010622A
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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
- H01G11/84—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
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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
- H01G11/30—Electrodes characterised by their material
- H01G11/32—Carbon-based
- H01G11/34—Carbon-based characterised by carbonisation or activation of carbon
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- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/40—Electric properties
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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 present invention is that medium barrier plasma is modified microwave activation lignin-base carbon resistance rod preparation method, belongs to biological material field.Its technique is that industrial lignin is purified using alkaline aqueous solution extraction, again Lignin-Based Activated Carbon is obtained after microwave radiation technology activation, mix, roll with ptfe emulsion and acetylene black after it is modified with medium barrier plasma, drying, being compressed in nickel foam and carbon resistance rod is made.After being handled through medium barrier plasma, the specific surface area of Lignin-Based Activated Carbon was set to improve 5~30% in 1~5 minute, micropore ratio increases to more than 80%, and oxygen element, nitrogen element content improve 2~5 times, and the carbon resistance rod specific capacitance prepared with it is compared with improve 15~45% before corona treatment.
Description
Technical field
The system that microwave radiation technology activates lignin-base carbon resistance rod is quickly modified the present invention relates to a kind of medium barrier plasma
Preparation Method, belongs to biological material field.
Background technology
Lignin is the unformed shape polymer that plant kingdom's content is only second to cellulose, is primarily present in plant cell wall
In.Lignin is distributed widely in higher plant, is chemical composition specific to gymnosperm and angiosperm.It is estimated that every
Year whole world is by the lignin reserves of plant growth up to 150,000,000,000 tons, and wherein industrial lignin yield is up to 1.5~1.8 hundred million
Ton.Industrial lignin is only utilized effectively as the main component of pulping and paper-making industry waste liquid less than 2%, and major part is all
Rivers or burn-up are discharged into, severe contamination, and waste of resource are not only caused to environment, making full use of industrial lignin, this is huge
Large resource turns into one of focus of Recent study.Because lignin not only has higher charcoal yield, cheap, source
It is abundant, and its porous activated carbon specific surface area prepared is high, and pore-size distribution is suitable, it is considered to be before the ideal for preparing activated carbon
Body is driven, is widely used in capacitor electrode material.But, traditional charing and activating process need by complicated heating,
Insulation, cooling step, cause the production cycle long (3~5 hours), low production efficiency, its Industry Promotion is greatly limited
System.However, microwave radiation technology activation (10~30 minutes) can prepare the activated carbon of high-specific surface area within a short period of time, compare
In traditional heating activating process, microwave radiation technology activating process greatly shortens soak time.
At present, activated carbon is one kind that is earliest in the ultracapacitor for making electrode with carbon-based material and being most employed extensively
Material.The aperture structure and chemically active surface functional group content of activated carbon are the carbon resistance rod chemical properties for influenceing it to prepare
Key factor.It is typically to carry out 2~4 hours in the aqueous solution for be placed on target compound that the chemical property of activated carbon, which is modified,
Heat treatment (250~450 DEG C), modification will be by complicated heating, and the process of insulation and cooling, power consumption is big, and time-consuming, leads
Cause production cost high, the production cycle is long, and low production efficiency, its Industry Promotion is extremely limited.However, plasma is
It is a kind of by a large amount of electronics, the ion of either polarity, with the high energy gaseous atom and molecule of ground state or any excitation state form and
The molecular gaseous state complex of light quantity, the energy of its particle is about from several electron volts to several kiloelectron-volts, with these high energy activity
Particle acts on activated carbon surface, is broken in several minutes its original chemical bond, introduces the chemical official of specific objective
It can roll into a ball, while using the corrasion of plasma, forming a large amount of nanoscale holes on its surface, improve raw material of wood-charcoal blanking aperture knot
Structure, increases substantially specific surface area.
Plasma can pass through glow discharge, corona discharge, dielectric barrier discharge, radio frequency discharge and microwave discharge etc.
Mode is produced.Dielectric barrier discharge is a kind of nonequilibrium state gas discharge for having dielectric to insert discharge space.Put at two
Certain working gas is full of between electrode, and wherein one or two electrode is covered with dielectric, can also be by medium
Be hung directly from discharge space or using granular Filled Dielectrics wherein, when applying sufficiently high alternating voltage between two electrodes
When, interelectrode gas can be breakdown and generation is discharged, that is, generates dielectric barrier discharge plasma.Dielectric impedance plasma
Body can carry out the quick modification in surface under low pressure even normal pressure to material, and modified cost is low, and treatment effeciency is high.
The present invention uses medium barrier plasma modification technology, quickly and efficiently strengthens microwave radiation technology activation lignin-base
The chemical property of carbon resistance rod, makes lignin turn waste into wealth, and increases substantially Lignin-Based Activated Carbon in carbon resistance rod preparation field
The market competitiveness, for promoting the industrial applications of China Lignin-Based Activated Carbon to have important practical significance.
The content of the invention
The purpose of the present invention be using medium barrier plasma (i.e. by electronics, the ion of either polarity, with ground state or times
The high energy gaseous atom and molecule and the molecular gaseous state complex of light quantity of what excitation state form) physics and chemical action,
A large amount of nanoscale holes are formed on microwave radiation technology activation Lignin-Based Activated Carbon surface (in several minutes) in very short time, significantly
Degree increases its specific surface area, and introduces target chemical functional group on surface, significantly improves its specific capacitance, obtains chemical property excellent
Different lignin-base carbon resistance rod.
The technical solution of the present invention：Medium barrier plasma is modified microwave activation lignin-base carbon resistance rod preparation side
Method is completed according to the following steps：
First, Lignin pufification：
Industrial lignin is purified using alkaline aqueous solution extraction, the removal of impurity is gone, to reduce to subsequent activation mistake
The influence of journey.
Lignin pufification described in step one is concretely comprised the following steps：Lignin is mixed with concentration for 3% NaOH solution, wood
Quality and NaOH ratio are 1: 10, after being stirred 1 hour at 65 DEG C, be incubated 30min, hot mixing liquid is filtered by vacuum,
The dilution heat of sulfuric acid that concentration is 2% is slowly added in filtrate, lasting stirring adjusts pH to 3,30 points of aggegation is incubated at 70 DEG C
Clock, until observing that graininess lignin floats, stirring makes lignin sink, and staticly settles 12 hours, pours out in beaker
Layer clear liquid, the graininess lignin of precipitation and remaining supernatant liquor are centrifuged, clean what is obtained with deionized water
Sediment is until pH then dries to constant weight at 60 DEG C in neutrality, obtains lignin after purification.
2nd, microwave radiation technology activation prepares Lignin-Based Activated Carbon；
Using KOH solution as activator, it is directly placed into microwave reactor after mixing with KOH mass ratioes 1: 3 by lignin
Row activation process, obtains Lignin-Based Activated Carbon.
Microwave radiation technology activation described in step 2 prepares Lignin-Based Activated Carbon and concretely comprised the following steps：It will purify in proportion wooden
Element adds concentration in 53% KOH solution, mechanical agitation 30min is then directly placed into microwave reactor and carried out at activation
Reason, microwave frequency is 2450 ± 50MHz, and processing power is 700W, is kept for 15 minutes, protective gas is nitrogen, and flow is 40mL/
Min, after the completion of activation, takes out after sample is cooled to room temperature under nitrogen atmosphere, adds in 1mol/L hydrochloric acid solutions, question response
Finish, filter, be washed with distilled water to neutrality, be subsequently placed into drying box and dried 4 hours at 103 DEG C, obtain microwave radiation technology
Activate Lignin-Based Activated Carbon.
3rd, medium barrier plasma modified lignin resin matrix activated carbon；
Microwave radiation technology activation Lignin-Based Activated Carbon is quickly modified using medium barrier plasma processing equipment
Processing, is lived by the high energy active particle such as the electronics in plasma, ion, atom, molecule and photon to lignin-base
Property charcoal physical etchings effect, destroy the macropore of Lignin-Based Activated Carbon, and form a large amount of nanoscale holes, adjustment activated carbon
Aperture structure, increases micropore ratio, meanwhile, trigger chemical action using the free radical of plasma, in Lignin-Based Activated Carbon
Surface introduces targeted activity chemical functional group, and such as oxygen-containing functional group, nitrogen-containing functional group significantly improve the ratio of Lignin-Based Activated Carbon
Electric capacity, this dual synergistic effect that medium barrier plasma is modified, Lignin-Based Activated Carbon can be made in a short time
Specific surface area is compared with improving 5~30% before corona treatment, micropore ratio is compared with increasing to more than 80% before corona treatment, oxygen is first
Element, nitrogen element content are compared with improving 2~5 times before corona treatment, the carbon resistance rod specific capacitance prepared with it is compared with corona treatment
It is preceding to improve 15~45%.
Medium barrier plasma modified lignin resin matrix activated carbon described in step 3 is concretely comprised the following steps：It will be obtained in step 2
To microwave radiation technology activation Lignin-Based Activated Carbon be put into the reaction chamber of medium barrier plasma processing equipment, pass through water-bath
Heating water system reagent treatment obtains processing gas to 70~100 DEG C, and water system reagent treatment is one kind in water, ammoniacal liquor, is recycled
Vavuum pump will be evacuated to 20~30kPa pressure in reaction chamber, water vapour or ammonia and water vapor mixture body are automatically introduced into instead
Answer in chamber, then start medium barrier plasma excitation power source, regulation processing power makes processing in reaction chamber to 30~60W
Gas discharge, produces a large amount of oxygen or nitrogen plasma, processing is modified to Lignin-Based Activated Carbon surface, processing time is 1
~5 minutes.
4th, medium barrier plasma is quickly modified microwave activation lignin-base carbon resistance rod and prepared；
It is 60% that 5~10% concentration are added in the Lignin-Based Activated Carbon after medium barrier plasma modification
Ptfe emulsion and 5~10% acetylene black, are rolled into thickness thin for 0.4mm on double roller tablet press machine after being well mixed
Piece, is put into drying box, is dried 4 hours at 103 DEG C, is compressed in nickel foam and carbon resistance rod is made.
Advantages of the present invention：(1) the modification time is short：The modification time is only 1~5 minute, compared at present most
Conventional heat treating process (processing time is 2~4 hours), processing time is greatly lowered so that lignin-base carbon resistance rod it is whole
The individual production cycle greatly shortens, and significantly improves production efficiency；(2) a kind of multiple synergistic effect of processing significantly improves lignin-base
The chemical property of carbon resistance rod：The high energy active particles pair such as electronics, ion, atom, molecule and photon in plasma
The bombardment effect of Lignin-Based Activated Carbon, makes Lignin-Based Activated Carbon macropore fall damage, while the corrasion of plasma makes
Its surface produces substantial amounts of nanometer level microporous, the aperture structure of further improvement activated carbon, increases micropore ratio, meanwhile, utilize
The free radical of plasma triggers chemical action, and introduced on Lignin-Based Activated Carbon surface has humidification to chemical property
Targeted activity chemical functional group, such as oxygen-containing functional group and nitrogen-containing functional group are made by the physics of plasma and chemical synergistic
With in a short time so that the specific capacitance of modified lignin-base carbon resistance rod improves 15~45% compared with before processing；(3) work is handled
Skill is simple, and controllability is strong, and pollution is few, consumes energy low：Only needed in processing procedure adjust reaction cavity vacuum, processing power and
Action time, operating process is simply controllable, without heating, low, environmental protection of consuming energy, and can significantly reduce the work of modified lignin resin base
The production cost of property charcoal, enhances one's market competitiveness.
Brief description of the drawings
Fig. 1 is the electrochemical property test collection of illustrative plates of carbon resistance rod made from embodiment 1,2,3 and comparative example 1.
Embodiment
Embodiment 1
(1) purify：Industrial lignin is mixed with concentration for 3% NaOH solution, lignin and NaOH ratio are 1:
10, after being stirred 1 hour at 65 DEG C, 30min is incubated, hot mixing liquid is filtered by vacuum, concentration is slowly added in filtrate
For 2% dilution heat of sulfuric acid, lasting stirring adjusts pH to 3, aggegation 30 minutes is incubated at 70 DEG C, until observing graininess
Lignin floats, and stirring makes lignin sink, and staticly settles 12 hours, pours out beaker clear liquid at the middle and upper levels, by the particle of precipitation
Shape lignin is centrifuged with remaining supernatant liquor, and obtained sediment is cleaned with deionized water until pH is in neutrality,
Then dried at 60 DEG C to constant weight, obtain lignin after purification.
(2) activate：Lignin will be purified and add concentration in 53% KOH solution, lignin and KOH mass ratio are 1:
3, mechanical agitation 30 minutes is then directly placed into microwave reactor and carries out activation process, and microwave frequency is 2450 ± 50MHz,
Processing power is 700W, is kept for 15 minutes, protective gas is nitrogen, and flow is 40mL/min, after the completion of activation, treats sample in nitrogen
Atmosphere is cooled to after room temperature under enclosing and taken out, and adds in 1mol hydrochloric acid solutions, question response is finished, filtering, in being washed with distilled water to
Property, it is subsequently placed into drying box and is dried 4 hours at 103 DEG C, obtains microwave radiation technology activation Lignin-Based Activated Carbon.
(3) medium barrier plasma is modified：Lignin-Based Activated Carbon is put into medium barrier plasma processing equipment
Reaction chamber in, water vapour and ammonia gas mixture body are obtained to 70 DEG C by heating water bath ammoniacal liquor, recycle vavuum pump to react
30kPa pressure is evacuated in chamber, water vapour and ammonia gas mixture body are automatically introduced into reaction chamber, subsequent start-up dielectric impedance etc.
Gas ions excitation power source, regulation processing power makes gas discharge in sample room to 60W, produces a large amount of oxygen-containing and nitrogenous plasmas
Body, processing is modified to Lignin-Based Activated Carbon surface, and processing time is 5 minutes.
(4) prepared by carbon resistance rod：By after medium barrier plasma modification Lignin-Based Activated Carbon add 5~
10% concentration is 60% ptfe emulsion and 5~10% acetylene black, is rolled into after being well mixed on double roller tablet press machine
Thickness is 0.4mm thin slices, is put into drying box, is dried 4 hours at 103 DEG C, is compressed in nickel foam and carbon resistance rod is made.Lignin
Specific surface area, oxygen element and the nitrogen element content of matrix activated carbon and the carbon resistance rod specific capacitance prepared with it and discharge and recharge 2000 times
Capacitance conservation rate afterwards is shown in Table 1.
Embodiment 2
Industrial lignin is purified according to the identical step of embodiment 1 (1), obtains purifying lignin.
Microwave radiation technology activation process is carried out to purifying lignin according to the identical step of embodiment 1 (2), lignin-base is obtained
Activated carbon.
In the reaction chamber that Lignin-Based Activated Carbon is put into medium barrier plasma processing equipment, pass through heating water bath water
Water vapour is obtained to 100 DEG C, recycles vavuum pump to be evacuated to 30kPa pressure in reaction chamber, water vapour is automatically introduced into reaction
In chamber, subsequent start-up medium barrier plasma excitation power source, regulation processing power makes gas discharge in sample room to 60W, produces
Life is a large amount of oxygen-containing and containing nitrogen plasma, and processing is modified to Lignin-Based Activated Carbon surface, and processing time is 5 minutes.
Modified Lignin-Based Activated Carbon is prepared into carbon resistance rod according to the identical step of embodiment 1 (4).
Specific surface area, oxygen element and the nitrogen element content of Lignin-Based Activated Carbon and the carbon resistance rod specific capacitance prepared with it
It is shown in Table 1 with the capacitance conservation rate after discharge and recharge 2000 times.
Embodiment 3
Industrial lignin is purified according to the identical step of embodiment 1 (1), obtains purifying lignin.
Microwave radiation technology activation process is carried out to purifying lignin according to the identical step of embodiment 1 (2), lignin-base is obtained
Activated carbon.
In the reaction chamber that Lignin-Based Activated Carbon is put into medium barrier plasma processing equipment, pass through heating water bath water
Water vapour is obtained to 100 DEG C, recycles vavuum pump to be evacuated to 20kPa pressure in reaction chamber, water vapour is automatically introduced into reaction
In chamber, subsequent start-up medium barrier plasma excitation power source, regulation processing power makes gas discharge in sample room to 30W, produces
Life is a large amount of oxygen-containing and containing nitrogen plasma, and processing is modified to Lignin-Based Activated Carbon surface, and processing time is 1 minute.
Modified Lignin-Based Activated Carbon is prepared into carbon resistance rod according to the identical step of embodiment 1 (4).
Specific surface area, oxygen element and the nitrogen element content of Lignin-Based Activated Carbon and the carbon resistance rod specific capacitance prepared with it
It is shown in Table 1 with the capacitance conservation rate after discharge and recharge 2000 times.
Comparative example：
Industrial lignin is purified according to the identical step of embodiment 1 (1), obtains purifying lignin.
Microwave radiation technology activation process is carried out to purifying lignin according to the identical step of embodiment 1 (2), lignin-base is obtained
Activated carbon.
Modified Lignin-Based Activated Carbon is prepared into carbon resistance rod according to the identical step of embodiment 1 (4).
Specific surface area, oxygen element and the nitrogen element content of Lignin-Based Activated Carbon and the carbon resistance rod specific capacitance prepared with it
It is shown in Table 1 with the capacitance conservation rate after discharge and recharge 2000 times.
The medium barrier plasma modified lignin resin matrix activated carbon of table 1 and the carbon resistance rod properties with its preparation
Note：
1. specific surface area result is drawn by full-automatic specific surface area and pore analysis instrument (ASAP2020) test；
2. surface oxygen element, the content of nitrogen are drawn by x-ray photoelectron power spectrum (AXIS Ultra DLD) test；
3. specific capacitance test result is drawn by the cyclic voltammetry method of electrochemical workstation (CHI660D), all tests
Sweep speed be 5mV/s, scanning voltage be -1.1V arrive -0.1V.
4. capacitance conservation rate refers to after discharge and recharge 2000 times, the conservation rate of condenser capacity.
Claims (5)
1. medium barrier plasma is modified microwave activation lignin-base carbon resistance rod preparation method, it is characterised in that：Described Jie
Matter barrier plasma is modified microwave activation lignin-base carbon resistance rod and prepared according to the following steps：
Step one：Lignin pufification：Industrial lignin is purified using alkaline aqueous solution extraction, the removal of impurity is gone, to subtract
Few influence to subsequent activation process；
Step 2：Microwave radiation technology activation prepares Lignin-Based Activated Carbon；Using KOH solution as activator, by lignin and KOH mass
Activation process is carried out than being directly placed into after 1: 3 mixing in microwave reactor, Lignin-Based Activated Carbon is obtained；
Step 3：Medium barrier plasma modified lignin resin matrix activated carbon；Using medium barrier plasma processing equipment pair
Microwave radiation technology activation Lignin-Based Activated Carbon carries out quick modification, by the electronics in plasma, ion, atom, point
The high energy active particle such as son and photon is acted on the physical etchings of Lignin-Based Activated Carbon, destruction Lignin-Based Activated Carbon
Macropore, and a large amount of nanoscale holes are formed, the aperture structure of activated carbon is adjusted, increases micropore ratio, meanwhile, utilize plasma
Free radical trigger chemical action, Lignin-Based Activated Carbon surface introduce targeted activity chemical functional group, such as oxygen-containing functional group,
Nitrogen-containing functional group, significantly improves the specific capacitance of Lignin-Based Activated Carbon, this dual synergistic that medium barrier plasma is modified
Effect, the specific surface area of Lignin-Based Activated Carbon can be made in a short time compared with raising 5~30%, micropore before corona treatment
Ratio compared with increasing to more than 80% before corona treatment, oxygen element, nitrogen element content compared with improving 2~5 times before corona treatment,
The carbon resistance rod specific capacitance prepared with it is compared with improve 15~45% before corona treatment；
Step 4：Medium barrier plasma is modified microwave activation lignin-base carbon resistance rod and prepared；Through dielectric impedance plasma
It is 60% ptfe emulsion and 5~10% that 5~10% concentration are added in Lignin-Based Activated Carbon after modifies processing
Acetylene black, is rolled into thickness for 0.4mm thin slices on double roller tablet press machine, is put into drying box, dried at 103 DEG C after being well mixed
4 hours, it is compressed in nickel foam and carbon resistance rod is made.
2. medium barrier plasma according to claim 1 is modified microwave activation lignin-base carbon resistance rod preparation method,
It is characterized in that：Lignin pufification described in step one is concretely comprised the following steps：Lignin is mixed with concentration for 3% NaOH solution
Close, lignin and NaOH ratio are 1: 10, after being stirred 1 hour at 65 DEG C, are incubated 30min, and vacuum is carried out to hot mixing liquid
Suction filtration, is slowly added to the dilution heat of sulfuric acid that concentration is 2% in filtrate, and lasting stirring adjusts pH to 3, is incubated at 70 DEG C solidifying
Collection 30 minutes, until observing that graininess lignin floats, stirring makes lignin sink, and staticly settles 12 hours, pours out burning
Cup clear liquid at the middle and upper levels, the graininess lignin of precipitation and remaining supernatant liquor are centrifuged, cleaned with deionized water
Obtained sediment is until pH then dries to constant weight at 60 DEG C in neutrality, obtains lignin after purification.
3. medium barrier plasma according to claim 1 is modified microwave activation lignin-base carbon resistance rod preparation method,
It is characterized in that：Microwave radiation technology activation described in step 2 prepares Lignin-Based Activated Carbon and concretely comprised the following steps：In proportion will purifying
Lignin adds concentration in 53% KOH solution, mechanical agitation 30min is then directly placed into microwave reactor and lived
Change is handled, and microwave frequency is 2450 ± 50MHz, and processing power is 700W, is kept for 15 minutes, protective gas is nitrogen, and flow is
40mL/min, after the completion of activation, takes out after sample is cooled to room temperature under nitrogen atmosphere, adds in 1mol/L hydrochloric acid solutions,
Question response is finished, filtering, is washed with distilled water to neutrality, is subsequently placed into drying box and is dried 4 hours at 103 DEG C, obtains micro-
Ripple helper activity Lignin-Based Activated Carbon.
4. medium barrier plasma according to claim 1 is modified microwave activation lignin-base carbon resistance rod preparation method,
It is characterized in that：Medium barrier plasma modified lignin resin matrix activated carbon described in step 3 is concretely comprised the following steps：By step 2
In obtain microwave radiation technology activation Lignin-Based Activated Carbon be put into the reaction chamber of medium barrier plasma processing equipment, pass through
Heating water bath water system reagent treatment obtains processing gas to 70~100 DEG C, recycle vavuum pump will be evacuated to 20 in reaction chamber~
30kPa pressure, processing gas is automatically introduced into reaction chamber, then starts medium barrier plasma excitation power source, regulation
Processing power makes processing gas in reaction chamber discharge, produces a large amount of oxygen or nitrogen plasma, lignin-base is lived to 30~60W
Property carbon surface be modified processing, processing time is 1~5 minute.
5. medium barrier plasma according to claim 4 is modified microwave activation lignin-base carbon resistance rod preparation method,
It is characterized in that：Water system reagent treatment is one kind in water, ammoniacal liquor, the processing gas obtained after heating water bath water system reagent treatment
For one kind in water vapour or ammonia and water vapor mixture body.
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| CN107915226A (en) * | 2017-12-12 | 2018-04-17 | 浙江工商大学 | A kind of preparation method and device of hydrogen-free absorbent charcoal material |
| CN111232978A (en) * | 2020-03-26 | 2020-06-05 | 南京林业大学 | Method for preparing high-yield activated carbon by grouping and separating shell biomass |
| CN111422863A (en) * | 2020-04-06 | 2020-07-17 | 黑龙江工业学院 | Method for purifying dielectric barrier discharge plasma graphite |
| CN111540618A (en) * | 2020-05-07 | 2020-08-14 | 安徽大学 | Non-hydroformylation preparation method of nitrogen-oxygen co-doped carbon-based supercapacitor electrode material |
| CN113493195A (en) * | 2021-07-12 | 2021-10-12 | 中南大学 | Nitrogen-doped hard carbon material and preparation method and application thereof |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107502448A (en) * | 2017-08-28 | 2017-12-22 | 浙江海洋大学 | A kind of fish oil deacidifying process |
| CN107502448B (en) * | 2017-08-28 | 2020-12-29 | 浙江海洋大学 | Fish oil deacidification process |
| CN107915226A (en) * | 2017-12-12 | 2018-04-17 | 浙江工商大学 | A kind of preparation method and device of hydrogen-free absorbent charcoal material |
| CN111232978A (en) * | 2020-03-26 | 2020-06-05 | 南京林业大学 | Method for preparing high-yield activated carbon by grouping and separating shell biomass |
| CN111422863A (en) * | 2020-04-06 | 2020-07-17 | 黑龙江工业学院 | Method for purifying dielectric barrier discharge plasma graphite |
| CN111422863B (en) * | 2020-04-06 | 2022-10-11 | 黑龙江工业学院 | Method for purifying dielectric barrier discharge plasma graphite |
| CN111540618A (en) * | 2020-05-07 | 2020-08-14 | 安徽大学 | Non-hydroformylation preparation method of nitrogen-oxygen co-doped carbon-based supercapacitor electrode material |
| CN111540618B (en) * | 2020-05-07 | 2021-10-22 | 安徽大学 | Non-hydroformylation preparation method of nitrogen-oxygen co-doped carbon-based supercapacitor electrode material |
| CN113493195A (en) * | 2021-07-12 | 2021-10-12 | 中南大学 | Nitrogen-doped hard carbon material and preparation method and application thereof |
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