CN106145102A - A kind of method preparing expanded graphite or Graphene - Google Patents
A kind of method preparing expanded graphite or Graphene Download PDFInfo
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- CN106145102A CN106145102A CN201610587608.8A CN201610587608A CN106145102A CN 106145102 A CN106145102 A CN 106145102A CN 201610587608 A CN201610587608 A CN 201610587608A CN 106145102 A CN106145102 A CN 106145102A
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- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2002/00—Crystal-structural characteristics
- C01P2002/70—Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data
- C01P2002/72—Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data by d-values or two theta-values, e.g. as X-ray diagram
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2002/00—Crystal-structural characteristics
- C01P2002/80—Crystal-structural characteristics defined by measured data other than those specified in group C01P2002/70
- C01P2002/82—Crystal-structural characteristics defined by measured data other than those specified in group C01P2002/70 by IR- or Raman-data
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/01—Particle morphology depicted by an image
- C01P2004/03—Particle morphology depicted by an image obtained by SEM
Abstract
The invention discloses a kind of method preparing expanded graphite or Graphene, the method technical process is as follows: after graphite and extender being uniformly mixed, the solid mixture of pretreatment is joined in appropriate chlorosulfonic acid, under room temperature, quickly prepare expanded graphite and Graphene.The present invention prepares expanded graphite and is not related to any High Temperature High Pressure process, operates safety, with low cost, environmental friendliness.The expanded graphite that the present invention obtains can realize the volumetric expansion of 50 1000 times, and maintains the integrity of graphite platelet structure.Expanded graphite prepared by the present invention can be widely applied to the various fields such as energy storage, opto-electronic device, solaode, anticorrosive paint.Expanded graphite also can be carried out mechanics stripping as preparing the presoma of high-quality graphene, can obtain the high-quality graphene being substantially free of defect by expanded graphite prepared by the present invention.
Description
[technical field]
The invention belongs to technical field of material, more particularly, to a kind of side preparing expanded graphite or Graphene
Method.
[background technology]
Graphene, as a kind of novel material with carbon element, has received much concern since within 2004, being found；It has high printing opacity
Property, electric conductivity and specific surface area, and the mechanical property of excellence, in composite, energy and material, the field such as communication has wide
Application prospect and huge commercial value.
How highly effective and safe, low cost, a large amount of preparation realize industrialized production and remain one of Graphene applied research
Important requisite precondition.
In disclosed expanded graphite preparation method, Behabtu [Behabtu et al., Nat in 2010
Nanotechnol, 2010,5,406] etc. new method prepared by Graphene is proposed, particularly as follows: under vacuum condition, graphite powder is dried
Dehumidifying, hot blast blows 12h process continuously afterwards, and the graphite powder after then processing adds continuous stirring 48h in chlorosulfonic acid, for a long time
It is centrifuged and obtains Graphene.It is complicated that the method prepares Graphene process, and the cycle is long, and preparation method is limited by all many condition, uncomfortable
For large-scale production.Wherein Changchun Inst. of Applied Chemistry, Chinese Academy of Sciences's improvement to this experiment, (patent No.:
CN102627272A) it uses the most peelable Graphene of preparing of chlorosulfonic acid and hydrogen peroxide complex system, and whole reaction is rendered as
Explosion type, water generation vigorous reaction met by chlorosulfonic acid so that this method is difficult to large-scale industrial and produces.Chinese patent is " a kind of normal
The method directly preparing expanded graphite or Graphene under normal temperature and pressure " in (CN 105253878 A), dense by graphite is joined
Sulphuric acid prepares expanded graphite or Graphene with the system of combining of oxidant Ammonium persulfate. etc., but the method discharges in preparation process
Under the toxic gas, and response time normal temperature and pressure such as a large amount of sulfur dioxide more than 3 hours.Exist discharge a large amount of toxic gas and
The long problem of manufacturing cycle.Chinese patent " method preparing Graphene and the Graphene prepared by the method " (CN
105084344 A) graphite powder mixed with chlorosulfonic acid and puts in reactor by using, it is 110 DEG C～130 DEG C in temperature
Under the conditions of heat 4～6 hours, pretreating graphite mixes with concentrated sulphuric acid, stir and drip hydrogenperoxide steam generator initiation expansion reaction,
Obtain expanded graphite.Although the method prepares high-quality expanded graphite, but the method pretreatment reaction time is long, and
Need long-time heating, not only complex operation, and the production cycle is oversize.Therefore, a kind of extensive, low cost of exploitation and environment
Close friend, simple and easy to control, the method preparing high-quality expanded graphite or Graphene in a large number is imperative.
[summary of the invention]
It is an object of the invention to provide a kind of method preparing expanded graphite or Graphene, its can on a large scale, low cost
Prepare high-quality expanded graphite or Graphene, and environmental friendliness, simple and easy to control.
To achieve these goals, the present invention adopts the following technical scheme that
A kind of method preparing expanded graphite, is achieved by the steps of:
Under (a) normal temperature and pressure, graphite is slowly stirred with solid inorganic salt extender in suitable open-top receptacle and mixes
Uniformly, pre-treated solid mixture is obtained；Wherein, the consumption of solid inorganic salt extender is 1-50 times of graphite weight；
B under () normal temperature and pressure, being joined in chlorosulfonic acid by described pre-treated solid mixture and react, question response completes
After, obtain highly expanded graphite；Wherein, described chlorosulfonic acid is 5:1-30:1 with the mass ratio of described pre-treated solid mixture；
C the described highly expanded graphite obtained is washed with deionized by () after, the high power being filtrated to get hygrometric state expands stone
Ink.
Further, carry out spraying or lyophilization by the highly expanded graphite of the hygrometric state of step (c) gained, obtain high power
Expanded graphite.
In described step (a), described solid inorganic salt extender use Dexol, carbamide percarbonate, SODIUM PERCARBONATE and
One or more in adduct sodium sulphate-hydrogen peroxide-sodium chloride, sodium carbonate, sodium bicarbonate and ammonium hydrogen carbonate.
In described step (a), the time of stirring mixing is 1min-3h, and mixing speed is 10rpm-1000rpm.
In described step (a) and described step (b), described normal pressure is 1atm, and described room temperature is 10 DEG C-40
℃。
A kind of method preparing Graphene, is achieved by the steps of:
Under (a) normal temperature and pressure, graphite is slowly stirred with solid inorganic salt extender in suitable open-top receptacle and mixes
Uniformly, pre-treated solid mixture is obtained；Wherein, the consumption of solid inorganic salt extender is 1-50 times of graphite weight；
Under (b) normal temperature and pressure, described pre-treated solid mixture is joined in chlorosulfonic acid and reacts；Wherein, described
Chlorosulfonic acid is 5:1-30:1 with the mass ratio of described pre-treated solid mixture；
C () is directly added into ultrasonic remover in the reacted mixed liquor of step (b), ultrasonic stripping obtains graphene dispersion
Liquid；Wherein, the quality of ultrasonic remover is 1-50 times of graphite quality；
D described graphene dispersing solution is filtered by (), distilled water cyclic washing repeatedly obtains the Graphene of hygrometric state；
E the Graphene of described hygrometric state is carried out spraying or lyophilization by (), obtain graphene powder.
In described step (a), described solid inorganic salt extender use Dexol, carbamide percarbonate, SODIUM PERCARBONATE and
One or more in adduct sodium sulphate-hydrogen peroxide-sodium chloride, sodium carbonate, sodium bicarbonate and ammonium hydrogen carbonate.
In described step (a), the time of stirring mixing is 1min-3h, and mixing speed is 10rpm-1000rpm.
In described step (a) and described step (b), described normal pressure is 1atm, and described room temperature is 10 DEG C-40 DEG C.
In described step (c), described ultrasonic remover is pure water solution, N-Methyl pyrrolidone, N, N-dimethyl methyl
One or more in amide, DMAC N,N' dimethyl acetamide, ethanol；Ultrasonic time is 0.5h-2h, and ultrasonic power is 20-
80KHz。
Use such scheme, it is an advantage of the current invention that:
(1) operating without High Temperature High Pressure, whole course of reaction discharges a small amount of sulfur dioxide, and expansion process is to discharge titanium dioxide
Carbon is main, environmental protection.
(2) intumescent system that this method uses selects cheap chlorosulfonic acid, carbonate or percarbonate system, anyway the cycle
Short, overall preparation cost is cheap, it is simple to industrialized production.
(3) in this method course of reaction, percarbonate or carbonate material also have the effect neutralizing acid reaction medium
Really, the processing cost of waste reaction solution is reduced.
(4) although it is reaction dissolvent that the present invention have employed chlorosulfonic acid, but it is not introduced into water, it is to avoid chlorosulfonic acid is violent with water
Reaction.
The expanded graphite obtained by the inventive method can realize the volumetric expansion of 50-1000 times, and maintains graphite
The integrity of lamellar structure.Expanded graphite prepared by the present invention can be widely applied to energy storage, opto-electronic device, solaode,
The various field such as anticorrosive paint.Expanded graphite prepared by the present invention also can be as preparing the presoma of high-quality graphene, by swollen
Swollen graphite carries out mechanics stripping, can obtain the high-quality graphene being substantially free of defect.
[accompanying drawing explanation]
Fig. 1 is the surface topography map of the highly expanded graphite scanning electron microscopic observation of the embodiment of the present invention 4 gained；
Fig. 2 is the surface topography map of the Graphene scanning electron microscopic observation of the embodiment of the present invention 5 gained；
Fig. 3 is the Graphene of the embodiment of the present invention 5 gained and the X-ray diffracting spectrum of raw graphite powder and Raman collection of illustrative plates.
[detailed description of the invention]
The present invention is further illustrated below by way of detailed description of the invention.Should be understood that being embodied as example is not used in restriction
The scope of the present invention.Under conditions of without substantial technological content alteration, be also considered as the present invention can practical range, all in the present invention
In the protection domain required.
Embodiment 1:
A kind of method preparing expanded graphite of the present invention, is achieved by the steps of:
(1) by graphite 10g and carbamide percarbonate 200g, in iron ware, mixing 0.5h is stirred with the rotating speed of 100rmp,
Obtain the solid mixture stirred.
(2) in conical flask, the chlorosulfonic acid of 20ml is sequentially added into solid mixture 2g, magnetic agitation 5min, stirring
During above-mentioned solid mixture rapid spatial expansion, correspondingly the rotating speed of magnetic agitation to improve 10% 50%, makes bulge
The reaction heat divided is discharged in surrounding quickly.After having reacted, separating upper strata expanded graphite and acid solution, deionized water is many
Secondary washing and filtering, to neutral, obtains the highly expanded graphite of hygrometric state.
Embodiment 2:
A kind of method preparing expanded graphite of the present invention, is achieved by the steps of:
(1) by graphite 10g and Dexol 200g, in iron ware, mixing 0.5h is stirred with the rotating speed of 100rmp,
To the solid mixture stirred.
(2) in conical flask, the chlorosulfonic acid of 20ml is sequentially added into solid mixture 2g, magnetic agitation 5min, stirring
During above-mentioned solid mixture rapid spatial expansion, correspondingly the rotating speed of magnetic agitation to improve 10% 50%, makes bulge
The reaction heat divided is discharged in surrounding quickly.After having reacted, separating upper strata expanded graphite and acid solution, deionized water is many
Secondary washing and filtering, to neutral, obtains the highly expanded graphite of hygrometric state.
Embodiment 3:
A kind of method preparing expanded graphite of the present invention, is achieved by the steps of:
(1) by graphite 10g and SODIUM PERCARBONATE 200g, in iron ware, stir mixing 2h with the rotating speed of 50rmp, stirred
Mix uniform solid mixture.
(2) in conical flask, the chlorosulfonic acid of 20ml is sequentially added into solid mixture 2g, magnetic agitation 5min, stirring
During above-mentioned solid mixture rapid spatial expansion, correspondingly the rotating speed of magnetic agitation to improve 10% 50%, makes bulge
The reaction heat divided is discharged in surrounding quickly.After having reacted, separating upper strata expanded graphite and acid solution, deionized water is many
Secondary washing and filtering, to neutral, obtains the highly expanded graphite of hygrometric state.
(3) the highly expanded graphite lyophilization of hygrometric state is obtained highly expanded graphite.
Embodiment 4:
A kind of method preparing expanded graphite of the present invention, is achieved by the steps of:
(1) by graphite 10g and sodium bicarbonate 200g, in iron ware, stir mixing 1h with the rotating speed of 100rmp, obtain
The solid mixture stirred.
(2) in conical flask, the chlorosulfonic acid of 20ml is sequentially added into solid mixture 2g, magnetic agitation 5min, stirring
During above-mentioned solid mixture rapid spatial expansion, correspondingly the rotating speed of magnetic agitation to improve 10% 50%, makes bulge
The reaction heat divided is discharged in surrounding quickly.After having reacted, separating upper strata expanded graphite and acid solution, deionized water is many
Secondary washing and filtering, to neutral, obtains the highly expanded graphite of hygrometric state.
(3) the highly expanded graphite lyophilization of hygrometric state is obtained highly expanded graphite.
The surface topography of the highly expanded graphite scanning electron microscopic observation of the present embodiment gained is as shown in Figure 1.
Embodiment 5:
A kind of method preparing Graphene of the present invention, is achieved by the steps of:
(1) by graphite 10g and carbamide percarbonate or sodium borate 200g, stir mixed with the rotating speed of 100rmp in iron ware
Close 0.5h, obtain the solid mixture stirred.
(2) in conical flask, the chlorosulfonic acid of 20ml is sequentially added into solid mixture 2g, magnetic agitation 5min, stirring
During above-mentioned solid mixture rapid spatial expansion, correspondingly the rotating speed of magnetic agitation to improve 10% 50%, makes bulge
The reaction heat divided is discharged in surrounding quickly.After having reacted, obtain the mixture of hygrometric state expanded graphite and acid solution；Again
Ultrasonic for 100g remover (being that 4:1 prepares by the volume ratio of water Yu N-Methyl pyrrolidone) is joined hygrometric state expanded graphite
With the mixture of acid solution, processed 30 minutes at 25 DEG C by the Probe Ultrasonic Searching of 80kHz, obtain graphene dispersing solution.
(3) being filtered by graphene dispersing solution, with distilled water wash, again with water-dispersible, then lyophilization obtains graphite
Alkene powder body.
In the surface topography such as Fig. 2 of the Graphene scanning electron microscopic observation of the present embodiment gained shown in (a), (b)；The present embodiment
The Graphene of gained and the X-ray diffracting spectrum of raw graphite powder and Raman collection of illustrative plates are as shown in Figure 3.
Embodiment 6:
A kind of method preparing Graphene of the present invention, embodiment 6 differs only in embodiment 5: ultrasonic remover is pressed
Water and the volume ratio of DMAC N,N' dimethyl acetamide are that 4:1 is formulated.
Embodiment 7:
A kind of method preparing expanded graphite of the present invention, is achieved by the steps of:
(1) by graphite 1g and ammonium hydrogen carbonate 49g, in iron ware, stir mixing 30min with the speed of 500rmp, obtain
The solid mixture stirred.
(2) in beaker, the chlorosulfonic acid of 30ml is sequentially added into solid mixture 5g, magnetic agitation 5min, stirred
Above-mentioned solid mixture rapid spatial expansion in journey, correspondingly the rotating speed of magnetic agitation to improve 10% 50%, makes dilation
Reaction heat be discharged into quickly in surrounding.After having reacted, separating upper strata expanded graphite and acid solution, deionized water is repeatedly
Washing and filtering, to neutral, obtains the highly expanded graphite of hygrometric state.
Embodiment 8:
A kind of method preparing Graphene of the present invention, is achieved by the steps of:
(1) by graphite 1g and ammonium hydrogen carbonate 49g, in iron ware, stir mixing 30min with the speed of 500rmp, obtain
The solid mixture stirred.
(2) in beaker, the chlorosulfonic acid of 30ml is sequentially added into solid mixture 5g, magnetic agitation 5min, stirred
Above-mentioned solid mixture rapid spatial expansion in journey, correspondingly the rotating speed of magnetic agitation to improve 10% 50%, makes dilation
Reaction heat be discharged into quickly in surrounding.After having reacted, obtain the mixture of hygrometric state expanded graphite and acid solution；
(3) ultrasonic for 50g remover (being that 4:1 prepares by the volume ratio of water Yu ethanol) is joined hygrometric state expanded graphite
With the mixture of acid solution, processed 60 minutes at 25 DEG C by the Probe Ultrasonic Searching of 20kHz, obtain graphene dispersing solution.
(4) being filtered by graphene dispersing solution, distilled water wash, again with water-dispersible, then lyophilization obtains Graphene
Powder body.
Embodiment 9:
A kind of method preparing Graphene of the present invention, is achieved by the steps of:
(1) by graphite 10g and SODIUM PERCARBONATE 200g, in iron ware, stir mixing 2h with the rotating speed of 50rmp, stirred
Mix uniform solid mixture.
(2) in conical flask, the chlorosulfonic acid of 20ml is sequentially added into solid mixture 2g, magnetic agitation 5min, stirring
During above-mentioned solid mixture rapid spatial expansion, correspondingly the rotating speed of magnetic agitation to improve 10% 50%, makes bulge
The reaction heat divided is discharged in surrounding quickly.After having reacted, separating upper strata expanded graphite and acid solution, deionized water is many
Secondary washing and filtering, to neutral, obtains the highly expanded graphite of hygrometric state.
(3) the highly expanded graphite lyophilization of hygrometric state is obtained highly expanded graphite.
(4) being joined by highly expanded graphite 1g by water and the volume ratio of DMAC N,N' dimethyl acetamide is that 4:1 is formulated
100ml mixed liquor in, processed 30 minutes at 25 DEG C by the Probe Ultrasonic Searching of 80kHz, obtain graphene dispersing solution.
(5) being filtered by graphene dispersing solution, distilled water wash, again with water-dispersible, then lyophilization obtains Graphene
Powder body.
Embodiment 10:
A kind of method preparing Graphene of the present invention, is achieved by the steps of:
(1) by graphite 10g and sodium bicarbonate 200g, in iron ware, stir mixing 1h with the rotating speed of 100rmp, obtain
The solid mixture stirred.
(2) in conical flask, the chlorosulfonic acid of 20ml is sequentially added into solid mixture 2g, magnetic agitation 5min, stirring
During above-mentioned solid mixture rapid spatial expansion, correspondingly the rotating speed of magnetic agitation to improve 10% 50%, makes bulge
The reaction heat divided is discharged in surrounding quickly.After having reacted, separating upper strata expanded graphite and acid solution, deionized water is many
Secondary washing and filtering, to neutral, obtains the highly expanded graphite of hygrometric state.
(3) the highly expanded graphite lyophilization of hygrometric state is obtained highly expanded graphite.
(4) being joined by highly expanded graphite 1g by water and the volume ratio of DMAC N,N' dimethyl acetamide is that 4:1 is formulated
100ml mixed liquor in, processed 30 minutes at 25 DEG C by the Probe Ultrasonic Searching of 80kHz, obtain graphene dispersing solution.
(5) being filtered by graphene dispersing solution, distilled water wash, again with water-dispersible, then lyophilization obtains Graphene
Powder body.
Claims (10)
1. the method preparing expanded graphite, it is characterised in that be achieved by the steps of:
Under (a) normal temperature and pressure, graphite is slowly stirred with solid inorganic salt extender in suitable open-top receptacle and mixs homogeneously,
Obtain pre-treated solid mixture；Wherein, the consumption of solid inorganic salt extender is 1-50 times of graphite weight；
Under (b) normal temperature and pressure, described pre-treated solid mixture is joined in chlorosulfonic acid and reacts, after question response completes,
Obtain highly expanded graphite；Wherein, described chlorosulfonic acid is 5:1-30:1 with the mass ratio of described pre-treated solid mixture；
C the described highly expanded graphite obtained is washed with deionized by () after, it is filtrated to get the highly expanded graphite of hygrometric state.
A kind of method preparing expanded graphite the most according to claim 1, it is characterised in that: wet by step (c) gained
The highly expanded graphite of state carries out spraying or lyophilization, obtains highly expanded graphite.
A kind of method preparing expanded graphite the most according to claim 1, it is characterised in that: in described step (a), described
Solid inorganic salt extender uses Dexol, carbamide percarbonate, SODIUM PERCARBONATE and sodium sulfate-hydrogen peroxide-sodium chloride adduction
One or more in thing, sodium carbonate, sodium bicarbonate and ammonium hydrogen carbonate.
A kind of method preparing expanded graphite the most according to claim 1, it is characterised in that: in described step (a), stirring
The time of mixing is 1min-3h, and mixing speed is 10rpm-1000rpm.
A kind of method preparing expanded graphite the most according to claim 1, it is characterised in that: described step (a) is with described
In step (b), described normal pressure is 1atm, and described room temperature is 10 DEG C-40 DEG C.
6. the method preparing Graphene, it is characterised in that be achieved by the steps of:
Under (a) normal temperature and pressure, graphite is slowly stirred with solid inorganic salt extender in suitable open-top receptacle and mixs homogeneously,
Obtain pre-treated solid mixture；Wherein, the consumption of solid inorganic salt extender is 1-50 times of graphite weight；
Under (b) normal temperature and pressure, described pre-treated solid mixture is joined in chlorosulfonic acid and reacts；Wherein, described chlorine sulphur
Sour is 5:1-30:1 with described pre-treated solid mixture mass ratio；
C () is directly added into ultrasonic remover in the reacted mixed liquor of step (b), ultrasonic stripping obtains graphene dispersing solution；
Wherein, the quality of ultrasonic remover is 1-50 times of graphite quality；
D described graphene dispersing solution is filtered by (), distilled water cyclic washing repeatedly obtains the Graphene of hygrometric state；
E the Graphene of described hygrometric state is carried out spraying or lyophilization by (), obtain graphene powder.
A kind of method preparing expanded graphite the most according to claim 6, it is characterised in that: in described step (a), described
Solid inorganic salt extender uses Dexol, carbamide percarbonate, SODIUM PERCARBONATE and sodium sulfate-hydrogen peroxide-sodium chloride adduction
One or more in thing, sodium carbonate, sodium bicarbonate and ammonium hydrogen carbonate.
A kind of method preparing expanded graphite the most according to claim 6, it is characterised in that: in described step (a), stirring
The time of mixing is 1min-3h, and mixing speed is 10rpm-1000rpm.
A kind of method preparing expanded graphite the most according to claim 6, it is characterised in that: described step (a) is with described
In step (b), described normal pressure is 1atm, and described room temperature is 10 DEG C-40 DEG C.
A kind of method preparing expanded graphite the most according to claim 6, it is characterised in that: in described step (c), institute
The ultrasonic remover stated is pure water solution, N-Methyl pyrrolidone, N,N-dimethylformamide, DMAC N,N' dimethyl acetamide, second
One or more in alcohol；Ultrasonic time is 0.5h-2h, and ultrasonic power is 20-80KHz.
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| CN107082425A (en) * | 2017-04-14 | 2017-08-22 | 燕山大学 | A kind of method that step of normal temperature one prepares expanded graphite |
| CN107275621A (en) * | 2017-07-07 | 2017-10-20 | 天津巴莫科技股份有限公司 | Graphene-based sulphur composite positive pole and preparation method thereof |
| CN107539973A (en) * | 2017-09-12 | 2018-01-05 | 华侨大学 | A kind of preparation method of graphene powder |
| CN107585761A (en) * | 2017-10-13 | 2018-01-16 | 南京旭羽睿材料科技有限公司 | A kind of expanded graphite alkene preparation method |
| CN108439393A (en) * | 2018-04-25 | 2018-08-24 | 燕山大学 | A kind of method that one step of room temperature prepares expanded graphite |
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| CN111217367A (en) * | 2020-01-14 | 2020-06-02 | 中国石油大学(华东) | Multi-element composite intercalated low-temperature expandable graphite system for profile control and water shutoff of deep reservoir and preparation method and application thereof |
| CN111960414A (en) * | 2020-07-02 | 2020-11-20 | 天津科技大学 | Wood biomass-based porous carbon material prepared from inorganic molten salt hydrate, and preparation method and application thereof |
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| CN107539973B (en) * | 2017-09-12 | 2020-08-28 | 华侨大学 | Preparation method of graphene powder |
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| CN111960414B (en) * | 2020-07-02 | 2023-01-20 | 天津科技大学 | Wood biomass-based porous carbon material prepared from inorganic molten salt hydrate, and preparation method and application thereof |
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