CN107973286A - A kind of preparation method and application of baobab scytoblastema multiporous biological matter Carbon Materials - Google Patents
A kind of preparation method and application of baobab scytoblastema multiporous biological matter Carbon Materials Download PDFInfo
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- CN107973286A CN107973286A CN201711156913.2A CN201711156913A CN107973286A CN 107973286 A CN107973286 A CN 107973286A CN 201711156913 A CN201711156913 A CN 201711156913A CN 107973286 A CN107973286 A CN 107973286A
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- 239000003575 carbonaceous material Substances 0.000 title claims abstract description 46
- 235000003320 Adansonia digitata Nutrition 0.000 title claims abstract description 26
- 235000003319 Adansonia gregorii Nutrition 0.000 title claims abstract description 26
- 244000056971 Adansonia gregorii Species 0.000 title claims abstract description 25
- 238000002360 preparation method Methods 0.000 title claims abstract description 13
- 239000007772 electrode material Substances 0.000 claims abstract description 25
- 244000146553 Ceiba pentandra Species 0.000 claims abstract description 23
- 235000003301 Ceiba pentandra Nutrition 0.000 claims abstract description 23
- 238000004519 manufacturing process Methods 0.000 claims abstract description 21
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 20
- 238000010000 carbonizing Methods 0.000 claims abstract description 20
- 238000001035 drying Methods 0.000 claims abstract description 18
- 239000002253 acid Substances 0.000 claims abstract description 17
- 238000010438 heat treatment Methods 0.000 claims abstract description 17
- 150000003839 salts Chemical class 0.000 claims abstract description 17
- 239000003990 capacitor Substances 0.000 claims abstract description 13
- 239000003610 charcoal Substances 0.000 claims abstract description 12
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 10
- 238000000197 pyrolysis Methods 0.000 claims abstract description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 15
- 238000002791 soaking Methods 0.000 claims description 14
- 238000000227 grinding Methods 0.000 claims description 9
- 229910002804 graphite Inorganic materials 0.000 claims description 8
- 239000010439 graphite Substances 0.000 claims description 8
- 239000006227 byproduct Substances 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 7
- 239000008367 deionised water Substances 0.000 claims description 4
- 229910021641 deionized water Inorganic materials 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 235000013399 edible fruits Nutrition 0.000 claims description 3
- 239000000047 product Substances 0.000 claims description 3
- 238000003763 carbonization Methods 0.000 claims 2
- 210000002615 epidermis Anatomy 0.000 claims 1
- 239000012535 impurity Substances 0.000 claims 1
- 238000005406 washing Methods 0.000 abstract description 12
- 239000000463 material Substances 0.000 abstract description 6
- 239000002994 raw material Substances 0.000 abstract description 4
- 238000010306 acid treatment Methods 0.000 abstract 1
- 239000011148 porous material Substances 0.000 abstract 1
- 238000010792 warming Methods 0.000 description 8
- 229910052760 oxygen Inorganic materials 0.000 description 7
- 239000001301 oxygen Substances 0.000 description 7
- 238000012360 testing method Methods 0.000 description 6
- 239000002028 Biomass Substances 0.000 description 5
- 239000000843 powder Substances 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- 239000003792 electrolyte Substances 0.000 description 4
- 239000002699 waste material Substances 0.000 description 4
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 229920001940 conductive polymer Polymers 0.000 description 3
- 238000007599 discharging Methods 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 239000006230 acetylene black Substances 0.000 description 2
- 238000001994 activation Methods 0.000 description 2
- 239000000443 aerosol Substances 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 239000002041 carbon nanotube Substances 0.000 description 2
- 229910021393 carbon nanotube Inorganic materials 0.000 description 2
- 239000002322 conducting polymer Substances 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000005518 electrochemistry Effects 0.000 description 2
- 125000000524 functional group Chemical group 0.000 description 2
- -1 industry Substances 0.000 description 2
- 238000011031 large-scale manufacturing process Methods 0.000 description 2
- 229910044991 metal oxide Inorganic materials 0.000 description 2
- 150000004706 metal oxides Chemical class 0.000 description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 2
- 238000009656 pre-carbonization Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 244000056974 Adansonia digitata Species 0.000 description 1
- 241000446313 Lamella Species 0.000 description 1
- 241001465754 Metazoa Species 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- PFRUBEOIWWEFOL-UHFFFAOYSA-N [N].[S] Chemical compound [N].[S] PFRUBEOIWWEFOL-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 239000011149 active material Substances 0.000 description 1
- 239000002154 agricultural waste Substances 0.000 description 1
- 239000012080 ambient air Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 239000012620 biological material Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 210000003850 cellular structure Anatomy 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000004087 circulation Effects 0.000 description 1
- 239000006258 conductive agent Substances 0.000 description 1
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- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
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- 230000001681 protective effect Effects 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical compound FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 description 1
- 230000010148 water-pollination Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/22—Electrodes
- H01G11/30—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, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/22—Electrodes
- H01G11/30—Electrodes characterised by their material
- H01G11/32—Carbon-based
- H01G11/44—Raw materials therefor, e.g. resins or coal
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/13—Energy storage using capacitors
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Electric Double-Layer Capacitors Or The Like (AREA)
Abstract
The invention belongs to the preparing technical field of porous carbon material, and in particular to a kind of preparation method and applications of baobab scytoblastema multiporous biological matter Carbon Materials.First by the pretreatment of raw material of kapok pericarp, clean, drying, crush, pre- carbonizing production is obtained after normal pressure pyrolysis.Then by pre- carbonizing production acid treatment, finally by dried pre- carbonizing production, normal heating carbonizes under nitrogen protection, treats that it is down to room temperature, and with washing after salt acid soak to neutrality, drying to constant weight obtains baobab scytoblastema multiporous biological Carbon Materials.Prepared baobab scytoblastema multiporous biological matter Carbon Materials can be used for electrode material for super capacitor.The preparation method is easy to operate easily-controllable, of low cost, can in advance be carbonized, carbonized on the basis of material original structure is kept, and the multiporous biological matter charcoal prepared has different pore structures, can be as the electrode material for super capacitor of excellent performance.
Description
Technical field
The invention belongs to the preparing technical field of porous carbon material, it is related to the system of baobab scytoblastema multiporous biological matter Carbon Materials
Preparation Method and application.
Background technology
Ultracapacitor generally includes four electrode, electrolyte, collector, spacer components.Wherein, electrode material is to close
Key, it decides the Specifeca tion speeification of capacitor.Common electrode material have carbon-based material electrode, conductive polymer electrodes and
Metal oxide electrode.The main problem that conducting polymer presently, there are is that its cycle performance is unstable, in long-term discharge and recharge
Cheng Zhong, it may occur that the phenomenon of volumetric expansion or contraction, causes conducting polymer materials hydraulic performance decline.Metal oxide base capacitance
In device, research at present is mainly the most successfully ruthenic oxide and aqueous sulfuric acid system.Its specific capacitance is up to 760 F g-1.But
It is that Ru prices are too high, is unsuitable for being commercialized.Carbon material chemical property is stablized, and has good corrosion resistance and electrical and thermal conductivity, is
The electrode material being most widely used, and the electrode material for super capacitor of only commerciallyization at present.
Biomass carbon refers to biological material such as industry, agricultural wastes, aquatic, careless and its residue, the organic work in cities and towns
A kind of Carbon Materials by certain processing, chemical reaction generation such as industry waste, animals and humans excrement.This Carbon Materials have good
Good chemical property, higher electric conductivity, there is universal application in terms of the energy, aerospace, electronics, mechanical industry.At present
Common carbon material mainly has carbon aerosol, carbon nanotubes, porous charcoal, in carbon aerosol preparation process formaldehyde etc. can be used organic molten
Agent, pollutes environment, and preparation process is cumbersome；Carbon nanotubes manufacturing cost is high, and technical requirements are high, and commercialization is difficult；Porous carbon material
Prepare simply, source is wide, and cost is low, and performance is good, is adapted to large-scale production.
SOUTHERN CHINA kapok resource very abundant, every kapok fruit mature period, has a large amount of kapok fruits and falls naturally
Fall.It is conceivable that can all there are a large amount of kapok pericarps to produce every year.Multiporous biological charcoal is prepared into, can not only be turned waste into wealth,
And avoid the influence of waste biomass confrontation ambient air generation.Up to the present, for baobab scytoblastema multiporous biological matter
The research of Carbon Materials is considerably less and is limited to study its absorption property, is not found and is made with baobab scytoblastema multiporous biological matter charcoal
For the research of electrode material.By the pre- carbonization and activation to kapok pericarp, the charcoal prepared contain substantial amounts of macropore and
Micropore, has higher specific surface area, has higher specific capacitance, power density using it as the electrode slice that active material is prepared
And energy density.In addition, baobab scytoblastema multiporous biological charcoal contain more nitrogen element sulphur and oxygen-containing functional group, oxygen-containing functional group can
To improve hydrophily of the electrode in aqueous electrolyte, be conducive to the transmission of electrolyte ion, nitrogen sulphur can improve electrode slice
Specific capacitance.
The content of the invention
It is an object of the invention to provide a kind of preparation method and application of multiporous biological matter Carbon Materials, it is easy that this method possesses raw material
Obtain, is easy to operate easily-controllable, and can carbonize and activate on the basis of material original structure is kept.
The present invention adopts the following technical scheme that to achieve these goals：
A kind of preparation method of baobab scytoblastema multiporous biological matter charcoal, comprises the following steps：
（1）Soaked in deionized water under room temperature first by kapok pericarp 24 it is small when after clean, drying, crush；
（2）The kapok pericarp of crushing is put into crucible in resistance furnace to be carbonized in advance（Anaerobic heats）, 4 ~ 10 DEG C of heating rate
min-1, when normal pressure pyrolysis 0.5 ~ 3 is small, room temperature is down to, by product with 1 mol L-1When salt acid soak 0.5 is small, then wash into
Property, drying, grinding obtain pre- carbonizing production；
（3）By step 2）In pre- carbonizing production be put into graphite crucible, under nitrogen protection in 600 ~ 1000 DEG C heating charing, rise
Warm 0.5 ~ 10 DEG C of min of speed-1, when soaking time 0.5 ~ 3 is small, it is down to room temperature and obtains carbonizing production, by the product with 1 mol
L-1After when salt acid soak 0.5 is small, washs to neutrality, drying and obtain baobab scytoblastema multiporous biological charcoal.
Step（2）Described in pre- carbonization temperature be 300 ~ 500 DEG C.
Multiporous biological matter charcoal prepared by the above method can be used for electrode material for super capacitor.
The beneficial effects of the present invention are：
（1）The present invention raw material kapok pericarp belong to renewable biological source, derive from a wealth of sources, it is cheap be easy to get it is environmentally protective.
The present invention can be carbonized on the basis of kapok pericarp structure is kept, without activation process, it is possible to prepare multiporous biological
Matter Carbon Materials, realize turning waste into wealth for kapok pericarp, and the inventive method is simple for process, are adapted to large-scale production.
（2）Baobab scytoblastema multiporous biological matter charcoal prepared by the present invention can be as the super electricity of electrochemical performance
Container electrode material.
Brief description of the drawings
Fig. 1 is the SEM pictures of the multiporous biological matter Carbon Materials prepared by the embodiment of the present invention 1.
Fig. 2 is the SEM pictures of the multiporous biological matter Carbon Materials prepared by the embodiment of the present invention 2.
Fig. 3 be multiporous biological matter Carbon Materials prepared by the embodiment of the present invention 2 as electrode material in 1 A g-1Electric current
Charging and discharging curve under density.
Fig. 4 is discharge and recharge of the multiporous biological matter Carbon Materials under different current densities prepared by the embodiment of the present invention 3
Curve.
Fig. 5 is that the multiporous biological matter Carbon Materials prepared by the embodiment of the present invention 4 are steady after 5000 charge and discharge cycles
Qualitative curve.
Embodiment
The preparation method of baobab scytoblastema multiporous biological matter Carbon Materials of the present invention is as follows：
（1）Kapok pericarp is soaked under room temperature in deionized water 24 it is small when after clean, drying, crush, load crucible and be placed in
In resistance furnace, anaerobic heats under the conditions of 300 ~ 500 DEG C, and heating rate is 4 ~ 8 DEG C of min-1；Soaking time is small for 0.5 ~ 3
When after be down to room temperature, with 1 mol L-1To neutrality, dry, grinding, obtains pre- carbonizing production for washing after when salt acid soak 0.5 is small；
（2）The pre- carbonizing production of acquisition is fitted into graphite crucible, is placed in tube furnace, under nitrogen protection in normal pressure 600 ~
900 DEG C of heating charings, heating rate is 4 ~ 8 DEG C of min-1, when soaking time is 0.5 ~ 3 small；Treat that it is cooled to room temperature product
With 1 mol L-1After when salt acid soak 0.5 is small, washs to neutrality, kapok pericarp multiporous biological matter Carbon Materials are obtained after dry；
（3）It is prepared by electrode：Using pressed disc method, selecting stainless (steel) wire, for acetylene black as conductive agent, 5 wt.%'s is poly- as collector
Tetrafluoroethene is binding agent, by baobab scytoblastema multiporous biological matter Carbon Materials, acetylene black, polytetrafluoroethylene (PTFE) mass ratio 85:10:
5, mixed grinding is uniform, is pressed into thin slice, is cut into 1 cm*, 1 cm sizes；The thin slice of cutting is placed on steel mesh, is placed in
Under tablet press machine, under the pressure of 10 MPa, pressurize 90s, obtains working electrode；
（4）Electrochemical property test：Tested using three-electrode system, using the electrode of sheet as working electrode, then with to electricity
Pole and reference electrode are together placed in electrolyte, and test baobab scytoblastema multiporous biological matter raw material of wood-charcoal is carried out by electrochemical workstation
The chemical property of material.
The purposes of the present invention is that baobab scytoblastema multiporous biological matter Carbon Materials are used as to the electrode material of ultracapacitor.
It is several specific embodiments of invention below, further illustrates the present invention, it is all according to scope of the present invention patent institute
The equivalent changes and modifications done, should all belong to the covering scope of the present invention.
Embodiment 1
（1）It will be fitted into by 2 g kapok pericarp powder of pretreatment in 20 mL crucibles, be placed in resistance furnace, with 5 DEG C of min-1
Speed heating, to 300 DEG C, carry out Non-oxygen pyrolytic at this temperature, when soaking time 2 is small postcooling to room temperature, by product with
1 mol L-1Washing after drying, grinding, obtains pre- carbonizing production to neutrality after when salt acid soak 0.5 is small.
（2）The pre- carbonizing productions of 2 g are put into 20 mL graphite crucibles, are placed in resistance furnace, with 5 DEG C of min-1Speed
700 DEG C are warming up to, heating charing at this temperature under nitrogen protection, when soaking time is 2 small, fully carbonizes it under normal pressure
After cool to room temperature with the furnace, with 1 mol L-1Washing obtains baobab to neutrality after drying to constant weight after when salt acid soak 0.5 is small
Scytoblastema multiporous biological matter Carbon Materials.Its SEM picture by picture as shown in Figure 1, can see gained baobab scytoblastema multiporous biological
Matter Carbon Materials have abundant cellular structures, its specific surface area is 1300 cm2/g。
Embodiment 2
（1）It will be fitted into by 2 g kapok pericarp powder of pretreatment in 20 mL crucibles, be placed in resistance furnace, with 4 DEG C of min-1
Speed heating, to 500 DEG C, carry out Non-oxygen pyrolytic at this temperature, when soaking time 1 is small postcooling to room temperature, by product with
1 mol L-1Washing after drying, grinding, obtains pre- carbonizing production to neutrality after when salt acid soak 0.5 is small.
（2）The pre- carbonizing productions of 3 g are put into 20 mL graphite crucibles, are placed in resistance furnace, with 4 DEG C of min-1Speed
900 DEG C are warming up to, heating charing at this temperature under nitrogen protection, when soaking time is 1 small, fully carbonizes it under normal pressure
After cool to room temperature with the furnace, with 1 mol L-1Washing obtains baobab to neutrality after drying to constant weight after when salt acid soak 0.5 is small
Scytoblastema multiporous biological matter Carbon Materials.Its SEM picture by picture as shown in Fig. 2, can see gained baobab scytoblastema multiporous biological
Matter Carbon Materials have abundant lamella loose structure.Using the multiporous biological matter Carbon Materials as electrode material for super capacitor, 1
A g-1Charging and discharging curve under current density is as shown in Figure 3.Its electrochemical property test the result shows that, the electrode material is in 1 A
g-1Specific capacitance under current density can reach 380 F g-1.In general, the electric conductivity of carbon material is poorer than metal, carbon material
Specific capacitance is 100 ~ 260 F g-1, and the specific capacitance of the electrode material of the present invention can reach 380 F g-1, illustrate this material conduct
Electrode material for super capacitor has excellent chemical property.
Embodiment 3
（1）It will be fitted into by 2 g kapok pericarp powder of pretreatment in 20 mL crucibles, be placed in resistance furnace, with 8 DEG C of min-1
Speed be warming up to 400 DEG C, carry out Non-oxygen pyrolytic at this temperature, postcooling is to room temperature when soaking time 0.5 is small, by product
With 1 mol L-1Washing after drying, grinding, obtains pre- carbonizing production to neutrality after when salt acid soak 0.5 is small.
（2）The pre- carbonizing productions of 3 g are put into 20 mL graphite crucibles, are placed in resistance furnace, with 4 DEG C of min-1Speed
1000 DEG C are warming up to, heating charing at this temperature under nitrogen protection, when soaking time is 2 small, fully charing under normal pressure
Room temperature is cooled to the furnace afterwards, with 1 mol L-1Washing obtains kapok to neutrality after drying to constant weight after when salt acid soak 0.5 is small
Pericarp Quito hole biomass carbon material.Using the multiporous biological matter Carbon Materials as electrode material for super capacitor, the electrode material
Charging and discharging curve under different current densities is as shown in Figure 4.Its electrochemical property test the result shows that, the electrode material is 1
A g-1Specific capacitance under current density can reach 400 F g-1, it is excellent to illustrate that this material has as electrode material for super capacitor
Different chemical property.
Embodiment 4
（1）It will be fitted into by 2 g kapok pericarp powder of pretreatment in 20 mL crucibles, be placed in resistance furnace, with 10 DEG C of min-1Speed be warming up to 500 DEG C, carry out Non-oxygen pyrolytic at this temperature, postcooling is to room temperature when soaking time 0.5 is small, by product
With 1 mol L-1Washing after drying, grinding, obtains pre- carbonizing production to neutrality after when salt acid soak 0.5 is small.
（2）The pre- carbonizing productions of 3 g are put into 20 mL graphite crucibles, are placed in resistance furnace, with 10 DEG C of min-1Speed
1000 DEG C are warming up to, heating charing at this temperature under nitrogen protection, when soaking time is 2 small, fully charing under normal pressure
Room temperature is cooled to the furnace afterwards, with 1 mol L-1Washing obtains kapok to neutrality after drying to constant weight after when salt acid soak 0.5 is small
Pericarp Quito hole biomass carbon material.Using the multiporous biological matter Carbon Materials as electrode material for super capacitor, its electrochemistry
Energy test result is as shown in Figure 5.Should the result shows that, gained multiporous biological matter carbon material electrode material is through 5000 charge and discharge cycles
Stability curve retention rate afterwards is 95.17%, and specific capacitance is declined by less than 5% after 5000 circulations.Therefore, the multiporous biological matter
Carbon Materials have prominent cyclical stability as electrode material for super capacitor.
Embodiment 5
（1）It will be fitted into by 2 g kapok pericarp powder of pretreatment in 20 mL crucibles, be placed in resistance furnace, with 5 DEG C of min-1
Speed be warming up to 500 DEG C, carry out Non-oxygen pyrolytic at this temperature, postcooling is to room temperature when soaking time 2 is small, by product with 1
mol L-1Washing after drying, grinding, obtains pre- carbonizing production to neutrality after when salt acid soak 0.5 is small.
（2）The pre- carbonizing productions of 3 g are put into 20 mL graphite crucibles, are placed in resistance furnace, with 5 DEG C of min-1Speed
1000 DEG C are warming up to, heating charing at this temperature under nitrogen protection, when soaking time is 2 small, fully charing under normal pressure
Room temperature is cooled to the furnace afterwards, with 1 mol L-1Washing obtains kapok to neutrality after drying to constant weight after when salt acid soak 0.5 is small
Pericarp Quito hole biomass carbon material.Using the multiporous biological matter Carbon Materials as electrode material for super capacitor, its electrochemistry
Energy test result shows that the electrode material is in 1 A g-1Specific capacitance under current density can reach 375 F g-1。
Claims (5)
1. a kind of preparation method of baobab scytoblastema multiporous biological matter Carbon Materials, it is characterised in that comprise the following steps：
(1) kapok pericarp is pre-processed first：Kapok pericarp is soaked under room temperature in deionized water 24 it is small when to remove fruit
The impurity in epidermis face, then cleaned repeatedly with deionized water to, drying, crush；
(2) pericarp of crushing is placed in crucible in resistance furnace and is carbonized in advance, room temperature is down to after normal pressure pyrolysis, by product
With 1 mol L-1When salt acid soak 0.5 is small, then wash to neutrality, drying, grinding, obtain pre- carbonizing production；
(3) the pre- carbonizing production in step (2) is put into graphite crucible, under nitrogen protection heating charing postcooling to room temperature,
By the product with 1 mol L-1After when salt acid soak 0.5 is small, washs to neutrality, baobab scytoblastema multiporous biological is obtained after dry
Matter charcoal.
2. the preparation method of baobab scytoblastema multiporous biological matter Carbon Materials according to claim 1, it is characterised in that：Step
(2) pre- 300 ~ 500 DEG C of carbonization temperature described in, 4 ~ 10 DEG C of min of heating rate-1, when normal pressure pyrolysis time 0.5 ~ 3 is small.
3. the preparation method of baobab scytoblastema multiporous biological matter Carbon Materials according to claim 1, it is characterised in that：Step
(3) 600 ~ 1000 DEG C of the heating carbonization temperature described in, 0.5 ~ 10 DEG C of min of heating rate-1, when soaking time 0.5 ~ 3 is small.
A kind of 4. baobab scytoblastema multiporous biological matter Carbon Materials being prepared such as claim 1 ~ 3 either method.
5. a kind of application of baobab scytoblastema multiporous biological matter Carbon Materials prepared by method according to claim 1, its feature
It is：Applied to electrode material for super capacitor.
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| CN110753673A (en) * | 2018-11-23 | 2020-02-04 | 辽宁星空钠电电池有限公司 | Biomass-based functional group modified sodium ion battery negative electrode material and preparation method and application thereof |
| CN111244477A (en) * | 2020-01-14 | 2020-06-05 | 北京理工大学 | Preparation and application of biomass carbon nanosphere cluster material |
| CN111389382A (en) * | 2020-04-03 | 2020-07-10 | 江苏省农业科学院 | Preparation method and application of lanthanum-iron oxide modified nano inorganic material straw porous carbon |
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| CN109763576A (en) * | 2018-12-30 | 2019-05-17 | 张全康 | Kapok aerogel thermal insulation plate |
| CN111244477A (en) * | 2020-01-14 | 2020-06-05 | 北京理工大学 | Preparation and application of biomass carbon nanosphere cluster material |
| CN111389382A (en) * | 2020-04-03 | 2020-07-10 | 江苏省农业科学院 | Preparation method and application of lanthanum-iron oxide modified nano inorganic material straw porous carbon |
| CN111389382B (en) * | 2020-04-03 | 2023-02-14 | 江苏省农业科学院 | Preparation method and application of lanthanum-iron oxide modified nano inorganic material straw porous carbon |
| CN115312326A (en) * | 2022-04-20 | 2022-11-08 | 湖南和广生物科技有限公司 | Method for preparing supercapacitor electrode material based on camellia peel |
| CN114950359A (en) * | 2022-04-25 | 2022-08-30 | 山东农业工程学院 | Biomass charcoal-based nano composite material and preparation method and application thereof |
| CN115028158A (en) * | 2022-06-24 | 2022-09-09 | 张家港博威新能源材料研究所有限公司 | Preparation method of kapok-based conductive carbon tube |
| CN115028158B (en) * | 2022-06-24 | 2024-07-02 | 张家港博威新能源材料研究所有限公司 | Preparation method of kapok-based conductive carbon tube |
| CN116395690A (en) * | 2023-03-15 | 2023-07-07 | 哈尔滨工业大学 | Method for preparing high mechanical strength carbon particles by using sulfuric acid activated biomass and application thereof |
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