CN109264695A - A kind of porous carbon material and preparation method thereof that nitrogen and phosphorus content is controllable - Google Patents
A kind of porous carbon material and preparation method thereof that nitrogen and phosphorus content is controllable Download PDFInfo
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- CN109264695A CN109264695A CN201811299688.2A CN201811299688A CN109264695A CN 109264695 A CN109264695 A CN 109264695A CN 201811299688 A CN201811299688 A CN 201811299688A CN 109264695 A CN109264695 A CN 109264695A
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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
- C01B32/05—Preparation or purification of carbon not covered by groups C01B32/15, C01B32/20, C01B32/25, C01B32/30
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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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- 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
A kind of porous carbon material and preparation method thereof that nitrogen and phosphorus content is controllable, adenine is dissolved in the phosphoric acid solution of various concentration, and 0.5~4g adenine and 0.5~4g phosphoric acid is added in every 10mL deionized water；Regulate and control the mass ratio of adenine and phosphoric acid in mixed solution, then adjust dip time (12~24 hours), then dry obtained carbon matrix precursor；Presoma is calcined 1~5 hour under the conditions of 400~800 DEG C under inert gas protection, after cooling, washing, filtering are dry, obtain the controllable porous carbon material of the nitrogen phosphorus doping content.Preparation process of the present invention is simple, and cost is relatively low, can effectively prepare the nitrogen-phosphor codoping Carbon Materials of hole prosperity, and material obtained has good super capacitor performance.
Description
Technical field
The present invention relates to a kind of controllable porous carbon materials and preparation method thereof for having good capacitive property of nitrogen and phosphorus content.
Background technique
In recent decades, consuming excessively for fossil fuel causes increasingly serious environmental problem, seriously hinders society
Fast development.Therefore, develop sustainable energy storage and converting system is the task when previous sternness.Electric double layer is super
Capacitor has the advantages that high power density, good high rate performance and has extended cycle life, and has obtained the extensive pass of numerous scholars
Note.Its working principle is that electric double layer principle, that is, pass through material surface to the Electrostatic Absorption charge of electrolyte ion in electrode and electricity
Interfacial electric double layer is formed between solution liquid.Positive and negative ion does displacement to the two poles of the earth under electric field action, produces between two electrodes
Raw potential difference, supercapacitor can carry out storage (Zhang, Li the Li Zhao, X.S.Carbon-based of energy
materials as supercapacitor electrodes.Chem.Soc.Rev.,2009,38(9):2520-2531).Charcoal
Material has good electric conductivity, biggish specific surface and good chemical stability, is electric double layer super capacitor all the time
The main electrode material of device, but the specific capacitance performance of Carbon Materials is poor, limits the development of capacitor.In order to improve super electricity
Hetero atom nitrogen phosphate and sulfur, boron etc. are adulterated and are introduced into carbon lattice, the infiltration of Carbon Materials not only can be improved by the specific capacitance of container
Property and electric conductivity, while also can increase additional fake capacitance.
What performance of the supercapacitor was obviously improved in research at present is that nitrogen-atoms is adulterated in Carbon Materials, and nitrogen-atoms can be with
Wetability, the electric conductivity of Carbon Materials are improved, reactivity site is increased and forms electron donor, to bring good circulation steady
It is qualitative.In order to further increase the capacitive property of N doping Carbon Materials, it is current one that nitrogen and other hetero atoms, which are carried out codope,
A very promising means greatly improve the capacitive property of material by the synergistic effect between different hetero atoms.China
Eastern Polytechnics Chen Jianding professor is polyacrylic acid, melamine formaldehyde resin and sodium hypophosphite mixing, by solidification, carbonization
Obtain porous carbon material (Qiang Y., Jiang J., Xiong Y., Hao Chen, the Chen J., Guan of nitrogen-phosphor codoping
S.,Chen J.Facile synthesis of N/P co-doped carbons with tailored
hierarchically porous structures for supercapacitor applications.RSC Adv.,
2016,6,9772-9778).H of the Carbon Materials in 1M2SO4In show excellent electric double layer capacitance performance, specific capacitance reaches
177F g-1, in current density 10Ag-1Under, specific capacitance is to maintain original 67%, it is most important that in circulation 10000
After secondary, specific capacitance has almost no change, the stability being excellent in.But the method reaction raw materials are more, reaction step is more multiple
It is miscellaneous, it is unfavorable for industrialization production, and the specific capacitance of gained Carbon Materials is lower, the performance of supercapacitor cannot be improved well.
Therefore, developing one kind preparation method that is simple and fast, having higher capacitance performance is a current difficult point.
Summary of the invention
In order to overcome, the nitrogen and phosphorus content of existing porous carbon material and preparation method thereof is uncontrollable, specific capacitance is lower, cannot be very
The deficiency of the performance of good raisings supercapacitor, the present invention provide a kind of nitrogen and phosphorus content controllably, have good supercapacitive
The controllable porous carbon material and preparation method thereof of the nitrogen and phosphorus content of energy.
The technical solution adopted by the present invention to solve the technical problems is:
A kind of porous carbon material that nitrogen and phosphorus content is controllable, prepares by the following method:
(1) adenine is dissolved in the phosphoric acid solution of various concentration, 0.5~4g adenine is added in every 10mL deionized water
With 1~10g phosphoric acid；
(2) then the mass ratio for regulating and controlling adenine and phosphoric acid in (1) mixed solution adjusts dip time, dry to be made
Carbon matrix precursor；
(3) calcining 1~5 is small under the conditions of 400~800 DEG C under inert gas protection for the presoma for obtaining step (2)
When, after cooling, washing, filtering are dry, obtain the controllable porous carbon material of the nitrogen phosphorus doping content.
The porous carbon material can adjust the mass ratio of adenine and phosphoric acid, dip time, calcination temperature by changing
With the content and pore structure of nitrogen phosphorus in calcination time control Carbon Materials.
A kind of preparation method for the porous carbon material that nitrogen and phosphorus content is controllable, the described method comprises the following steps:
(1) adenine is dissolved in the phosphoric acid solution of various concentration, 0.5~4g adenine is added in every 10mL deionized water
With 1~10g phosphoric acid；
(2) mass ratio for regulating and controlling adenine and phosphoric acid in (1) mixed solution, then adjusts dip time, then dries
Carbon matrix precursor is made；
(3) calcining 1~5 is small under the conditions of 400~800 DEG C under inert gas protection for the presoma for obtaining step (2)
When, after cooling, washing, filtering are dry, obtain the controllable porous carbon material of the nitrogen phosphorus doping content.
Further, the mass ratio of adenine and phosphoric acid is regulated and controled in the step (1), ratio controls 1:1~1:10；
Further, in the step (2), dip time 12~24 hours adjustable；
In the step (3), the method for the polymer obtained after dipping, high-temperature activation prepares the raw material of wood-charcoal of nitrogen-phosphor codoping
Material can control the content and pore structure of Carbon Materials nitrogen phosphorus by changing synthesis condition.
To its performance of the supercapacitor of test at the KOH of 6M.The test specific operation process of supercapacitor are as follows:
(1) a certain amount of Carbon Materials are weighed, ptfe micropowder, the mixing of conductive black, in mass ratio 8:1:1 ratio is
It is even, it then takes (5~10mg) to mix sample, (1cm is pressed against in nickel foam by tablet press machine2) it is made into electrode material, true
It is 12 hours dry at 100 DEG C of empty condition, sample quality is accurately weighed after cooling, effective mass is calculated by difference assay.
(2) electrode material is immersed in the KOH solution of 6M, and as working electrode, with electrochemical operation CHI660e
(Shanghai morning China) is connected, and wherein Hg/HgO is as reference electrode, and platinum electrode electrode as a comparison is existed with computer monitor Carbon Materials
Different potentials, the electric current under different time.Then the capacitive character of electrode material, forthright again, stability is obtained by calculation.
Beneficial effects of the present invention are mainly manifested in:
(1) synthesis is simple, and cost is relatively low.Using high-temperature activation charcoal, the product of higher yields can be obtained in a short time.
(2) by changing the mass ratio of adjustment adenine and phosphoric acid, dip time, calcination temperature and calcination time control
The content and pore structure of nitrogen phosphorus in Carbon Materials.
(3) Carbon Materials have good capacitance characteristic under alkaline condition, have certain application prospect.
Detailed description of the invention
Fig. 1 is the SEM figure of the NPC-1 Carbon Materials of specific embodiments of the present invention 1.
Fig. 2 is the NPC-1 Carbon Materials of specific embodiments of the present invention 1 in nitrogen adsorption-desorption schematic diagram of 77K and right
The graph of pore diameter distribution answered.
Fig. 3 is capacitive property schematic diagram of the NPC-1 Carbon Materials of specific embodiments of the present invention 1 in the KOH of 6M.
Fig. 4 is the SEM figure of the NPC-2 Carbon Materials of specific embodiments of the present invention 2.
Fig. 5 is the NPC-2 Carbon Materials of specific embodiments of the present invention 2 in nitrogen adsorption-desorption schematic diagram of 77K and right
The graph of pore diameter distribution answered.
Fig. 6 is capacitive property schematic diagram of the Carbon Materials of the NPC-2 of specific embodiments of the present invention 2 in the KOH of 6M.
Fig. 7 is the SEM figure of the NPC-3 Carbon Materials of specific embodiments of the present invention 3.
Fig. 8 is the NPC-3 Carbon Materials of specific embodiments of the present invention 3 in nitrogen adsorption-desorption schematic diagram of 77K and right
The graph of pore diameter distribution answered.
Fig. 9 is capacitive property schematic diagram of the Carbon Materials of the NPC-3 of specific embodiments of the present invention 3 in the KOH of 6M.
Specific embodiment
The invention will be further described below in conjunction with the accompanying drawings.
A kind of referring to Fig.1~Fig. 9, porous carbon material that nitrogen and phosphorus content is controllable, prepares by the following method:
(1) adenine is dissolved in the phosphoric acid solution of various concentration, 0.5~4g adenine is added in every 10mL deionized water
With 1~10g phosphoric acid；
(2) then the mass ratio for regulating and controlling adenine and phosphoric acid in (1) mixed solution adjusts dip time, dry to be made
Carbon matrix precursor；
(3) calcining 1~5 is small under the conditions of 400~800 DEG C under inert gas protection for the presoma for obtaining step (2)
When, after cooling, washing, filtering are dry, obtain the controllable porous carbon material of the nitrogen phosphorus doping content.
The porous carbon material can adjust the mass ratio of adenine and phosphoric acid, dip time, calcination temperature by changing
With the content and pore structure of nitrogen phosphorus in calcination time control Carbon Materials.
A kind of preparation method for the porous carbon material that nitrogen and phosphorus content is controllable, the described method comprises the following steps:
(1) adenine is dissolved in the phosphoric acid solution of various concentration, 0.5~4g adenine is added in every 10mL deionized water
With 1~10g phosphoric acid；
(2) mass ratio for regulating and controlling adenine and phosphoric acid in (1) mixed solution, then adjusts dip time, then dries
Carbon matrix precursor is made；
(3) calcining 1~5 is small under the conditions of 400~800 DEG C under inert gas protection for the presoma for obtaining step (2)
When, after cooling, washing, filtering are dry, obtain the controllable porous carbon material of the nitrogen phosphorus doping content.
Further, the mass ratio of adenine and phosphoric acid is regulated and controled in the step (1), ratio controls 1:1~1:10；
Further, in the step (2), dip time 12~24 hours adjustable；
In the step (3), the method for the polymer obtained after dipping, high-temperature activation prepares the raw material of wood-charcoal of nitrogen-phosphor codoping
Material can control the content and pore structure of Carbon Materials nitrogen phosphorus by changing synthesis condition.
In the present embodiment, the performance of the supercapacitor test to the Carbon Materials is in Shanghai morning China electrochemical workstation
(CHI660e) it is carried out on, operating process are as follows:
1) a certain amount of Carbon Materials are weighed, ptfe micropowder, the mixing of conductive black, in mass ratio 8:1:1 ratio is
It is even, it then takes (5~10mg) to mix sample, (1cm is pressed against in nickel foam by tablet press machine2) it is made into electrode material, true
It is 12 hours dry at 100 DEG C of empty condition, sample quality is accurately weighed after cooling, effective mass is calculated by difference assay.
2) electrode material is immersed in the KOH solution of 6M, and as working electrode, with electrochemical operation CHI660e (on
Hai Chenhua) it is connected, wherein Hg/HgO is as reference electrode, platinum electrode electrode as a comparison, with computer monitor Carbon Materials not
Same current potential, the electric current under different time.Then the capacitive character of electrode material, forthright again, stability is obtained by calculation.
Embodiment 1
A kind of preparation method for the porous carbon material that nitrogen and phosphorus content is controllable, the described method comprises the following steps:
1. the phosphoric acid solution (50wt%) of 0.5g adenine and 10g are mixed, and it is settled to 10mL.
2. mixed solution impregnates 12 hours at normal temperature, it is then dried to obtain presoma.
3. presoma is calcined 2 hours, 3 DEG C/min of heating rate under the conditions of 600 DEG C under protection of argon gas, after cooling,
Washing, it is dry, obtain the nitrogen-phosphor codoping porous carbon material NPC-1 with good performance of the supercapacitor.
The SEM figure of NPC-1 Carbon Materials is obtained referring to Fig. 1, in nitrogen adsorption-desorption schematic diagram of 77K and corresponding hole
Diameter distribution map referring to fig. 2, the KOH of 6M cyclic voltammetry curve and charging and discharging curve referring to Fig. 3.
As seen from the figure, NPC-1 Carbon Materials form a large amount of fine particle on surface after overactivation, illustrate that phosphoric acid can be
Material surface etches pore structure.Can be seen that Carbon Materials under low pressure from nitrogen adsorption-desorption isotherm has very high nitrogen
Gas adsorbance illustrates with the presence of a large amount of micropore, and as the increase of pressure, adsorbance are in saturation trend, illustrates the Carbon Materials
Based on micropore, be conducive to the absorption to ion.A part of meso-hole structure is existed simultaneously, the mass transfer of ion is conducive to.According to charcoal
Cyclic voltammetry curve and charging and discharging curve of the material in the KOH of 6M, it can be seen that the Carbon Materials have very high specific capacitance, in electricity
Current density is that specific capacitance is 325F/g under 0.2A/g, wherein the substantial portion of fake capacitance of nitrogen, phosphorus group contribution.
Embodiment 2
A kind of preparation method for the porous carbon material that nitrogen and phosphorus content is controllable, the described method comprises the following steps:
1. the phosphoric acid solution (50wt%) of 0.5g adenine and 10g are mixed, and it is settled to 10mL.
2. mixed solution impregnates 12 hours at normal temperature, it is then dried to obtain presoma.
3. presoma is calcined 2 hours, 3 DEG C/min of heating rate under the conditions of 700 DEG C under protection of argon gas, after cooling,
Washing, it is dry, obtain the nitrogen-phosphor codoping porous carbon material NPC-2 with good performance of the supercapacitor.
The SEM for obtaining NPC-2 Carbon Materials schemes referring to fig. 4, in nitrogen adsorption-desorption schematic diagram of 77K and corresponding hole
Diameter distribution map referring to Fig. 5, the KOH of 6M cyclic voltammetry curve and charging and discharging curve referring to Fig. 6.
As seen from the figure, NPC-2 Carbon Materials have still maintained the shape characteristic of NPC-1 Carbon Materials after overactivation.From nitrogen
Adsorption-desorption isothermal, which can be seen that Carbon Materials under low pressure, very high nitrogen adsorption capacity and adsorbance ratio NPC-1 raw material of wood-charcoal
The height of material illustrates with the presence of a large amount of micropore and micropore is gradually increased, and with the increase of pressure, adsorbance is in saturation trend,
Illustrate the Carbon Materials based on micropore, then the inflection point of adsorption isotherm is deviated to the big direction of pressure, illustrate aperture start by
Gradual change is big, exists simultaneously a part of mesoporous.It, can be with according to Carbon Materials in the cyclic voltammetry curve and charging and discharging curve of the KOH of 6M
Find out that the Carbon Materials have very high specific capacitance, specific capacitance is 309F/g in the case where current density is 0.2A/g, wherein nitrogen, phosphorus group
Contribute to substantial portion of fake capacitance.
Embodiment 3
A kind of preparation method for the porous carbon material that nitrogen and phosphorus content is controllable, the described method comprises the following steps:
1. the phosphoric acid solution (50wt%) of 0.5g adenine and 10g are mixed, and it is settled to 10mL.
2. mixed solution impregnates 12 hours at normal temperature, it is then dried to obtain presoma.
3. presoma is calcined 2 hours, 3 DEG C/min of heating rate under the conditions of 800 DEG C under protection of argon gas, after cooling,
Washing, it is dry, obtain the nitrogen-phosphor codoping porous carbon material NPC-3 with good performance of the supercapacitor.
The SEM figure of NPC-3 Carbon Materials is obtained referring to Fig. 7, in nitrogen adsorption-desorption schematic diagram of 77K and corresponding hole
Diameter distribution map referring to Fig. 8, the KOH of 6M cyclic voltammetry curve and charging and discharging curve referring to Fig. 9.
As seen from the figure, after overactivation, pattern does not change NPC-3 Carbon Materials substantially.From nitrogen adsorption-desorption isotherm
There is micropore to subtract as can be seen that Carbon Materials have very high nitrogen adsorption capacity under low pressure and nitrogen adsorption capacity has dropped explanation instead
Small, then the inflection point of adsorption isotherm continues to deviate to the big direction of pressure, illustrates that aperture continues to increase, and it is mesoporous gradually
Increase.According to Carbon Materials the KOH of 6M cyclic voltammetry curve and charging and discharging curve, it can be seen that the Carbon Materials have it is very high
Specific capacitance, in the case where current density is 0.2A/g, specific capacitance is 263F/g, wherein the substantial portion of counterfeit electricity of nitrogen, phosphorus group contribution
Hold.
Embodiment 4
A kind of preparation method for the porous carbon material that nitrogen and phosphorus content is controllable, the described method comprises the following steps:
1. the phosphoric acid solution (50wt%) of 2g adenine and 4g are mixed, and it is settled to 10mL.
2. mixed solution impregnates 18 hours at normal temperature, it is then dried to obtain presoma.
3. presoma is calcined 5 hours, 3 DEG C/min of heating rate under the conditions of 400 DEG C under protection of argon gas, after cooling,
Washing, it is dry, obtain the nitrogen-phosphor codoping porous carbon material NPC-3 with good performance of the supercapacitor.
In the present embodiment, nitrogen-phosphor codoping porous carbon material specific capacitance in the case where current density is 0.2A/g is 297F/g.
Embodiment 5
A kind of preparation method for the porous carbon material that nitrogen and phosphorus content is controllable, the described method comprises the following steps:
1. the phosphoric acid solution (50wt%) of 1g adenine and 10g are mixed, and it is settled to 10mL.
2. mixed solution impregnates 24 hours at normal temperature, it is then dried to obtain presoma.
3. presoma is calcined 3 hours, 3 DEG C/min of heating rate under the conditions of 600 DEG C under protection of argon gas, after cooling,
Washing, it is dry, obtain the nitrogen-phosphor codoping porous carbon material NPC-3 with good performance of the supercapacitor.
In the present embodiment, nitrogen-phosphor codoping porous carbon material specific capacitance in the case where current density is 0.2A/g is 312F/g.
Embodiment 6
A kind of preparation method for the porous carbon material that nitrogen and phosphorus content is controllable, the described method comprises the following steps:
1. the phosphoric acid solution (50wt%) of 4g adenine and 1g are mixed, and it is settled to 10mL.
2. mixed solution impregnates 12 hours at normal temperature, it is then dried to obtain presoma.
3. presoma is calcined 2 hours, 3 DEG C/min of heating rate under the conditions of 500 DEG C under protection of argon gas, after cooling,
Washing, it is dry, obtain the nitrogen-phosphor codoping porous carbon material NPC-3 with good performance of the supercapacitor.
In the present embodiment, nitrogen-phosphor codoping porous carbon material specific capacitance in the case where current density is 0.2A/g is 308F/g.
Embodiment 7
A kind of preparation method for the porous carbon material that nitrogen and phosphorus content is controllable, the described method comprises the following steps:
1. the phosphoric acid solution (50wt%) of 3.5g adenine and 3.5g are mixed, and it is settled to 10mL.
2. mixed solution impregnates 12 hours at normal temperature, it is then dried to obtain presoma.
3. presoma is calcined 2 hours, 3 DEG C/min of heating rate under the conditions of 500 DEG C under protection of argon gas, after cooling,
Washing, it is dry, obtain the nitrogen-phosphor codoping porous carbon material NPC-3 with good performance of the supercapacitor.
In the present embodiment, nitrogen-phosphor codoping porous carbon material specific capacitance in the case where current density is 0.2A/g is 321F/g.
The present invention discloses and proposes a kind of porous carbon material and preparation method thereof that nitrogen and phosphorus content is controllable, art technology
Personnel can be by using for reference present disclosure, and the suitably conditions such as change reactant, response parameter are realized.Method and product of the invention is
It is described by preferred embodiment, related technical personnel can obviously not depart from the content of present invention, in spirit and scope
Method described herein and product are modified or appropriate changes and combinations, to realize the technology of the present invention.In particular
, all similar replacements and change it is apparent to those skilled in the art, they be considered as include
In spirit of that invention, range and content.
Claims (5)
1. a kind of porous carbon material that nitrogen and phosphorus content is controllable, prepares by the following method:
(1) adenine is dissolved in the phosphoric acid solution of various concentration, 0.5~4g adenine and 1 is added in every 10mL deionized water
~10g phosphoric acid；
(2) then the mass ratio for regulating and controlling adenine and phosphoric acid in (1) mixed solution adjusts dip time, before carbon is made in drying
Drive body；
(3) presoma for obtaining step (2) is calcined 1~5 hour under the conditions of 400~800 DEG C under inert gas protection, cold
But after, washing, filtering are dry, obtain the controllable porous carbon material of the nitrogen phosphorus doping content.
2. a kind of preparation method for the porous carbon material that nitrogen and phosphorus content as described in claim 1 is controllable, which is characterized in that described
Method the following steps are included:
(1) adenine is dissolved in the phosphoric acid solution of various concentration, 0.5~4g adenine and 1 is added in every 10mL deionized water
~10g phosphoric acid；
(2) mass ratio for regulating and controlling adenine and phosphoric acid in (1) mixed solution, then adjusts dip time, then dry to be made
Carbon matrix precursor；
(3) presoma for obtaining step (2) is calcined 1~5 hour under the conditions of 400~800 DEG C under inert gas protection, cold
But after, washing, filtering are dry, obtain the controllable porous carbon material of the nitrogen phosphorus doping content.
3. preparation method as claimed in claim 2, which is characterized in that the matter of regulation adenine and phosphoric acid in the step (1)
Ratio is measured, ratio controls 1:1~1:10.
4. preparation method as claimed in claim 2 or claim 3, which is characterized in that in the step (2), dip time 12~24 is small
When it is adjustable.
5. preparation method as claimed in claim 2 or claim 3, which is characterized in that in the step (3), the polymerization that is obtained after dipping
The method of object, high-temperature activation prepares the Carbon Materials of nitrogen-phosphor codoping, can control Carbon Materials nitrogen phosphorus by changing synthesis condition
Content and pore structure.
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| CN112490453A (en) * | 2020-11-26 | 2021-03-12 | 中国科学院大连化学物理研究所 | Nitrogen-phosphorus co-doped carbon-supported platinum-cobalt-based nano alloy catalyst and preparation method and application thereof |
| CN113816372A (en) * | 2021-10-20 | 2021-12-21 | 温州大学 | Heteroatom-doped nitrogen-containing heterocyclic ligand derived carbon material and application thereof |
| CN114068201A (en) * | 2021-11-17 | 2022-02-18 | 温州大学 | Supercapacitor electrode material prepared from carbon-doped material and preparation method thereof |
| CN114551797A (en) * | 2021-07-08 | 2022-05-27 | 万向一二三股份公司 | High-surface-density silicon-carbon negative pole piece |
| CN115159504A (en) * | 2022-06-10 | 2022-10-11 | 四川大学 | Carbon nanosheet material, electrode slice and preparation method thereof |
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