CN106206056A - A kind of cobalt aluminum hydrotalcite/fluorinated graphene composite and preparation method thereof - Google Patents
A kind of cobalt aluminum hydrotalcite/fluorinated graphene composite and preparation method thereof Download PDFInfo
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- CN106206056A CN106206056A CN201610608797.2A CN201610608797A CN106206056A CN 106206056 A CN106206056 A CN 106206056A CN 201610608797 A CN201610608797 A CN 201610608797A CN 106206056 A CN106206056 A CN 106206056A
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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
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- C—CHEMISTRY; METALLURGY
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- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G51/00—Compounds of cobalt
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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
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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 relates to a kind of cobalt aluminum hydrotalcite/fluorinated graphene composite and preparation method thereof, this composite is prepared by following methods: 1) use Hummers method to prepare graphite oxide powder；2) graphite oxide powder is scattered in deionized water, then peel off with ultrasonic cell disrupte machine, again with centrifuge, take the supernatant, add hydrofluoric acid solution stirring reaction, then proceed to autoclave is carried out constant temperature fluorination reaction, be then cooled to room temperature, filtration washing, to neutral, obtains fluorinated graphene；3) fluorinated graphene is scattered in ethanol solution, peels off with ultrasonic cell disrupte machine, obtain fluorinated graphene suspension；4) in fluorinated graphene suspension, add cobalt sulfate, Aluminum Chloride Hexahydrate and carbamide, be transferred in autoclave carry out hydro-thermal reaction after stirring reaction, be then cooled to room temperature, then post processing obtains cobalt aluminum hydrotalcite/fluorinated graphene composite.
Description
Technical field
The present invention relates to a kind of cobalt aluminum hydrotalcite/fluorinated graphene composite and preparation method thereof.
Background technology
Fluorinated graphene can be regarded as the some or all of fluorination of Graphene, the sp in graphite2Structure by part or
All it is transformed into sp3, but still keep laminated structure.Fluorinated graphene has stronger electro-chemical activity and good electrode is steady
Qualitative, thus it is widely used in energy storage field, such as high-energy-density lithium battery anode, lithium ion battery negative and dye
Material sensitization solar battery to electrode etc., general and high specific capacitance material SnO2Deng compound use.
At present, the preparation method of fluorinated graphene mainly has two kinds, and one is to peel off fluorographite, and another kind is to use fluorine
Graphene or graphene oxide are modified by reagent.Fluorinated graphene productivity prepared by former approach is low, and lamella is difficult to
Control, and the active sites being combined with brucite is counted less.The fluorine reagent that later approach uses has XeF2、F2、SF6、CF4Deng
The liquid fluorine agents such as gas, diethylaminosulfur trifluoride and Fluohydric acid..Gas fluorine reagent is poisonous, operating difficulties and the fluorination of preparation
Graphene avtive spot is few, so the liquid fluorine reagent such as diethylaminosulfur trifluoride enjoy researcher to pay close attention to.Borontrifluoride diethylamino
Base sulfur fluorination effect in organic solvent is preferable, but organic solvent limits fluorinated graphene and other high specific capacitance of preparation
The combination of material.And use Fluohydric acid. Fluorinated graphene oxide, and the easy agglomerate of fluorographite ene product obtained, cause it to compare table
Area reduces, and the most corresponding with high specific capacitance material binding site reduces.Therefore, fluorinated graphene and high specific capacitance how are improved
The compatibility of material, it is thus achieved that bigger than electric capacity, cycle life is longer, the more preferable electrode material for super capacitor of stability becomes this
The technical barrier solved is badly in need of in field.
Summary of the invention
The technical problem to be solved is for above-mentioned deficiency present in prior art, it is provided that a kind of cobalt aluminum water
Talcum/fluorinated graphene composite and preparation method thereof, this cobalt aluminum hydrotalcite/fluorinated graphene complex has bigger ratio
Electric capacity, higher electro-chemical activity and excellent electrode stability, for the electrode of super capacitor material that a kind of performance is more superior
Material, and its preparation method is safely controllable, productivity is high, mild condition.
For solving above-mentioned technical problem, present invention provide the technical scheme that
Thering is provided a kind of cobalt aluminum hydrotalcite/fluorinated graphene composite, it is prepared by following methods:
1) Hummers method is used to prepare graphite oxide powder；
2) by step 1) gained graphite oxide powder is scattered in deionized water, obtains graphite oxide dispersion, then use
Ultrasonic cell disrupte machine is peeled off, then with centrifuge, takes the supernatant, and add hydrofluoric acid solution in the supernatant, stir
Mixing mixing, then proceed to carry out in autoclave constant temperature fluorination reaction, be then cooled to room temperature, filtration washing, to neutral, obtains
To fluorinated graphene；
3) by step 2) gained fluorinated graphene is scattered in ethanol solution, and peel off with ultrasonic cell disrupte machine, obtain fluorine
Functionalized graphene suspension；
4) to step 3) gained fluorinated graphene suspension adds cobalt sulfate, Aluminum Chloride Hexahydrate and carbamide so that
Cobalt sulfate, Aluminum Chloride Hexahydrate, carbamide and step 2) mass ratio of described graphite oxide powder be 4～15:2～15:4～
15:1, is transferred in autoclave carry out hydro-thermal reaction after stirring, be then cooled to room temperature, then post processing obtains cobalt aluminum
Brucite/fluorinated graphene composite.
By such scheme, step 2) described graphite oxide dispersion concentration is 0.5～2.5mg/mL.
By such scheme, step 2) described ultrasonic cell disrupte machine peel off process conditions be: pulse: 01 01, shake
Width: 20～60%, splitting time is 6～15min.
By such scheme, step 2) described centrifuge speed is 2000～6000r/min, centrifugation time is 10～40min.
By such scheme, step 2) described hydrofluoric acid solution mass concentration is 10～40%, described graphite oxide powder with
The mass volume ratio of hydrofluoric acid solution is 1g/40～200mL.
By such scheme, step 2) condition of described stirring is: the speed with 100～1000r/min stirs, mixing time
It is 2～20h.
By such scheme, step 2) described fluorination reaction temperature is 100～180 DEG C, the response time is 3～24h.
By such scheme, step 3) described ethanol solution mass concentration is 18～32%, described fluorinated graphene suspension
The concentration of middle fluorinated graphene is 0.2～1.5mg/mL, and described pulverizer amplitude is 20～60%, and pulse: 01 01, during stripping
Between be 5～30min.
By such scheme, step 4) described mixing time is 0.5～9h；Described hydrothermal temperature is 120～180 DEG C,
Response time is 6～30h.
The present invention also provides for the preparation method of above-mentioned cobalt aluminum hydrotalcite/fluorinated graphene composite, and its step is as follows:
1) Hummers method is used to prepare graphite oxide powder；
2) by step 1) gained graphite oxide powder is scattered in deionized water, obtains graphite oxide dispersion, then use
Ultrasonic cell disrupte machine is peeled off, then with centrifuge, takes the supernatant, and add hydrofluoric acid solution in the supernatant, stir
Mixing mixing, then proceed to carry out in autoclave constant temperature fluorination reaction, be then cooled to room temperature, filtration washing, to neutral, obtains
To fluorinated graphene；
3) by step 2) gained fluorinated graphene is scattered in ethanol solution, and peel off with ultrasonic cell disrupte machine, obtain fluorine
Functionalized graphene suspension；
4) to step 3) gained fluorinated graphene suspension adds cobalt sulfate, Aluminum Chloride Hexahydrate and carbamide so that
Cobalt sulfate, Aluminum Chloride Hexahydrate, carbamide and step 2) mass ratio of described graphite oxide powder be 4～15:2～15:4～
15:1, is transferred in autoclave carry out hydro-thermal reaction after stirring, be then cooled to room temperature, then post processing obtains cobalt aluminum
Brucite/fluorinated graphene composite.
Brucite is due to unique structural anisotropy, low cost, high specific capacitance and environment friendly, at electrochemical capacitor
Device application is by extensive concern, but its relatively low electric conductivity hinders its application in terms of electrode material.This
Bright employing Fluohydric acid. Fluorinated graphene oxide, first obtains fluorinated graphene floccule, then enters fluorinated graphene floccule
Row dispersion and stripping, increase its specific surface area under conditions of not reducing Oil repellent, thus increase the activity knot of itself and brucite
Close site.Compared with fluorinated graphene and brucite, because fluorinated graphene has stronger electro-chemical activity and good electricity
Stabilizer pole, the brucite of preparation/fluorinated graphene complex have bigger than electric capacity, have extended cycle life, have good stability excellent
Point, remarkable chemical property becomes the electrode material for super capacitor of a kind of great potential.
The beneficial effects of the present invention is: brucite prepared by the present invention/fluorinated graphene composite chemical property
Well, under electric current density is 0.3A/g, reach 928F/g than electric capacity as electrode material, and have extended cycle life, stability good
Good；Preparation technology of the present invention is simple and safe, mild condition, productivity are high, practical, easy to spread.
Accompanying drawing explanation
Fig. 1 is X-ray diffraction (XRD) figure of the cobalt aluminum hydrotalcite/fluorinated graphene composite prepared by embodiment 1
Spectrum；
Fig. 2 is the Fourier infrared (FT-IR) of the cobalt aluminum hydrotalcite/fluorinated graphene composite prepared by embodiment 1
Collection of illustrative plates；
Fig. 3 is the charge and discharge that the cobalt aluminum hydrotalcite/fluorinated graphene composite prepared by embodiment 2 records after making electrode
Electricity curve chart；
Fig. 4 is that the cobalt aluminum hydrotalcite/fluorinated graphene composite prepared by embodiment 3 is made after electrode in electric current density
The charge and discharge cycles number of times recorded under 3A/g-ratio capacitance relation curve chart.
Detailed description of the invention
For making those skilled in the art be more fully understood that technical scheme, below in conjunction with the accompanying drawings the present invention is made into
One step describes in detail.
Embodiment 1
Preparing cobalt aluminum hydrotalcite/fluorinated graphene composite, step is as follows:
1) Hummers method is used to prepare graphite oxide powder；
2) by 25mg step 1) gained graphite oxide powder is scattered in 50mL deionized water, obtains graphite oxide dispersion
Liquid, then peels off 6min (pulse: 01 01, amplitude: 30%) with ultrasonic cell disrupte machine, then with centrifuge at 4500r/min bar
Centrifugal 25min under part, takes the supernatant, and addition 2mL mass concentration is the hydrofluoric acid solution of 40% in this supernatant, stirs
Mixing 2h, then proceed in autoclave in 150 DEG C of isothermal reaction 8h, be then cooled to room temperature, filtration washing, to neutral, obtains
Fluorinated graphene；
3) by 22mg step 2) gained fluorinated graphene is scattered in the ethanol solution that 100mL mass concentration is 25%, uses
10min (pulse: 01 01, amplitude: 40%) peeled off by ultrasonic cell disrupte machine, obtains fluorinated graphene suspension；
4) to step 3) gained fluorinated graphene suspension adds 0.10g cobalt sulfate, 0.05g Aluminum Chloride Hexahydrate and
0.10g carbamide, is transferred in autoclave carry out hydro-thermal reaction after stirring 1h, and reaction temperature is 150 DEG C, and the response time is
8h, is then cooled to room temperature, then centrifuge washing, vacuum is dried 12h and obtained cobalt aluminum hydrotalcite/fluorinated graphene composite wood at 60 DEG C
Material.
It is illustrated in figure 1 the XRD figure spectrum of cobalt aluminum hydrotalcite/fluorinated graphene composite prepared by the present embodiment, by scheming
Understanding at 2 θ is diffraction maximum difference at 11.6 °, 23.6 °, 34.6 °, 39.3 °, 46.9 °, 53.2 °, 56.6 °, 60.3 ° and 61.6 °
The spy of (003), (006), (012), (015), (018), (1010), (0111), (110) and (113) crystal face of corresponding brucite
Levy diffraction maximum, with Co6Al2CO3(OH)16·H2The appearance position basic one of the diffraction maximum of the standard card JCPDS:51-0045 of O
Cause, show that composite has cobalt aluminum hydrotalcite.
Fig. 2 is the FT-IR collection of illustrative plates of the cobalt aluminum hydrotalcite/fluorinated graphene composite prepared by the present embodiment, can by figure
To find out that composite is at 3423cm-1Neighbouring appearance one belongs to the absworption peak of-OH in hydrone, at 1577cm-1Neighbouring peak
Can be regarded as being vibrated, at 1516cm by the-OH of adsorbed water molecule-1Unoxidized graphitic molecules skeletal vibration in graphitic molecules,
At 1356cm-1And 790cm-1Near CO occurs3 2-U3Deformation vibration peak.Additionally, at 1197cm-1And 1111cm-1Neighbouring difference
Occur in that covalency C-F key and the stretching vibration peak of half ionizing C-F key.Remaining is less than 800cm-1Belong to the vibration of metal M-O
Peak.Above structure shows to have synthesized cobalt aluminum hydrotalcite/fluorinated graphene composite.
Embodiment 2
Preparing cobalt aluminum hydrotalcite/fluorinated graphene composite, step is as follows:
1) Hummers method is used to prepare graphite oxide powder；
2) by 40mg step 1) gained graphite oxide powder is scattered in 50mL deionized water, obtains graphite oxide dispersion
Liquid, then peels off 9min (pulse: 01 01, amplitude: 30%) with ultrasonic cell disrupte machine, then with centrifuge at 4000r/min bar
Centrifugal 40min under part, takes the supernatant, and addition 2mL mass concentration is the hydrofluoric acid solution of 40% in this supernatant, stirs
Mixing 4h, then proceed in autoclave in 120 DEG C of isothermal reaction 10h, be then cooled to room temperature, filtration washing, to neutral, obtains
To fluorinated graphene；
3) by 36mg step 2) gained fluorinated graphene is scattered in the ethanol solution that 80mL mass concentration is 20%, with super
Sound cell disruptor peels off 12min (pulse: 01 01, amplitude: 40%), obtains fluorinated graphene suspension；
4) to step 3) gained fluorinated graphene suspension adds 0.4g cobalt sulfate, 0.15g Aluminum Chloride Hexahydrate and
0.4g carbamide, is transferred in autoclave carry out hydro-thermal reaction after stirring 1h, and reaction temperature is 130 DEG C, and the response time is
12h, is then cooled to room temperature, then centrifuge washing, vacuum drying obtain cobalt aluminum hydrotalcite/fluorinated graphene composite.
Fig. 3 is the charge and discharge that the cobalt aluminum hydrotalcite/fluorinated graphene composite prepared by present case records after making electrode
Electricity curve chart.By calculating, under electric current density is 0.3A/g, it is 928F/g than electric capacity.
Embodiment 3
Preparing cobalt aluminum hydrotalcite/fluorinated graphene composite, step is as follows:
1) Hummers method is used to prepare graphite oxide powder；
2) by 60mg step 1) gained graphite oxide powder is scattered in 50mL deionized water, obtains graphite oxide dispersion
Liquid, then peels off 12min (pulse: 01 01, amplitude: 40%) with ultrasonic cell disrupte machine, then with centrifuge at 4000r/min
Under the conditions of centrifugal 30min, take the supernatant, and to add 6mL mass concentration in this supernatant be the hydrofluoric acid solution of 40%,
Stirring 6h, then proceeds in autoclave in 140 DEG C of isothermal reaction 12h, is then cooled to room temperature, and filtration washing is the most neutral,
Obtain fluorinated graphene；
3) by 55mg step 2) gained fluorinated graphene is scattered in the ethanol solution that 50mL mass concentration is 30%, with super
Sound cell disruptor peels off 15min (pulse: 01 01, amplitude: 50%), obtains fluorinated graphene suspension；
4) to step 3) gained fluorinated graphene suspension adds 0.9g cobalt sulfate, 0.9g Aluminum Chloride Hexahydrate and
0.9g carbamide, is transferred in autoclave carry out hydro-thermal reaction after stirring 2.5h, and reaction temperature is 160 DEG C, and the response time is
18h, is then cooled to room temperature, then centrifuge washing, vacuum drying obtain cobalt aluminum hydrotalcite/fluorinated graphene composite.
Fig. 4 is filling of recording after making electrode of the cobalt aluminum hydrotalcite/fluorinated graphene composite prepared by the present embodiment
Discharge cycles number of times-ratio capacitance relation curve chart, as seen from the figure, under the conditions of electric current density is 3A/g, through 3000 charge and discharges
Electricity circulation, the ratio electric capacity of electrode material still can reach 677F/g, for initial ratio the 86% of electric capacity, shows the cobalt aluminum neatly of preparation
The cycle life of stone/fluorinated graphene composite is longer, has good stability.
Claims (10)
1. cobalt aluminum hydrotalcite/fluorinated graphene composite, it is characterised in that it is prepared by following methods:
1) Hummers method is used to prepare graphite oxide powder；
2) by step 1) gained graphite oxide powder is scattered in deionized water, obtains graphite oxide dispersion, then with ultrasonic
Cell disruptor is peeled off, then with centrifuge, takes the supernatant, and add hydrofluoric acid solution in the supernatant, and stirring is mixed
Even, then proceed to autoclave is carried out constant temperature fluorination reaction, be then cooled to room temperature, filtration washing, to neutral, obtains fluorine
Functionalized graphene；
3) by step 2) gained fluorinated graphene is scattered in ethanol solution, peels off with ultrasonic cell disrupte machine, obtain being fluorinated stone
Ink alkene suspension；
4) to step 3) gained fluorinated graphene suspension adds cobalt sulfate, Aluminum Chloride Hexahydrate and carbamide so that seven water
Cobaltous sulfate, Aluminum Chloride Hexahydrate, carbamide and step 2) mass ratio of described graphite oxide powder is 4～15:2～15:4～15:1,
It is transferred in autoclave carry out hydro-thermal reaction after stirring, is then cooled to room temperature, then post processing obtains cobalt aluminum neatly
Stone/fluorinated graphene composite.
Cobalt aluminum hydrotalcite/fluorinated graphene composite the most according to claim 1, it is characterised in that: step 2) described
Graphite oxide dispersion concentration is 0.5～2.5mg/mL.
Cobalt aluminum hydrotalcite/fluorinated graphene composite the most according to claim 1, it is characterised in that step 2) described
The process conditions peeled off with ultrasonic cell disrupte machine are: pulse: 01 01, amplitude: 20～60%, splitting time is 6～15min.
Cobalt aluminum hydrotalcite/fluorinated graphene composite the most according to claim 1, it is characterised in that: step 2) described
Centrifuge speed is 2000～6000r/min, and centrifugation time is 10～40min.
Cobalt aluminum hydrotalcite/fluorinated graphene composite the most according to claim 1, it is characterised in that: step 2) described
Hydrofluoric acid solution mass concentration is 10～40%, and described graphite oxide powder is 1g/40 with the mass volume ratio of hydrofluoric acid solution
～200mL.
Cobalt aluminum hydrotalcite/fluorinated graphene composite the most according to claim 1, it is characterised in that step 2) described
The condition of stirring is: the speed with 100～1000r/min stirs, and mixing time is 2～20h.
Cobalt aluminum hydrotalcite/fluorinated graphene composite the most according to claim 1, it is characterised in that step 2) described
Fluorination reaction temperature is 100～180 DEG C, and the response time is 3～24h.
Cobalt aluminum hydrotalcite/fluorinated graphene composite the most according to claim 1, it is characterised in that step 3) described
Ethanol solution mass concentration is 18～32%, in described fluorinated graphene suspension the concentration of fluorinated graphene be 0.2～
1.5mg/mL, described pulverizer amplitude is 20～60%, pulse: 01 01, and splitting time is 5～30min.
Cobalt aluminum hydrotalcite/fluorinated graphene composite the most according to claim 1, it is characterised in that step 4) described
Mixing time is 0.5～9h；Described hydrothermal temperature is 120～180 DEG C, and the response time is 6～30h.
10. a preparation method for the arbitrary described cobalt aluminum hydrotalcite/fluorinated graphene composite of claim 1-9, it is special
Levy and be that step is as follows:
1) Hummers method is used to prepare graphite oxide powder；
2) by step 1) gained graphite oxide powder is scattered in deionized water, obtains graphite oxide dispersion, then with ultrasonic
Cell disruptor is peeled off, then with centrifuge, takes the supernatant, and add hydrofluoric acid solution in the supernatant, and stirring is mixed
Even, then proceed to autoclave is carried out constant temperature fluorination reaction, be then cooled to room temperature, filtration washing, to neutral, obtains fluorine
Functionalized graphene；
3) by step 2) gained fluorinated graphene is scattered in ethanol solution, peels off with ultrasonic cell disrupte machine, obtain being fluorinated stone
Ink alkene suspension；
4) to step 3) gained fluorinated graphene suspension adds cobalt sulfate, Aluminum Chloride Hexahydrate and carbamide so that seven water
Cobaltous sulfate, Aluminum Chloride Hexahydrate, carbamide and step 2) mass ratio of described graphite oxide powder is 4～15:2～15:4～15:1,
It is transferred in autoclave carry out hydro-thermal reaction after stirring, is then cooled to room temperature, then post processing obtains cobalt aluminum neatly
Stone/fluorinated graphene composite.
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| CN108257796A (en) * | 2018-01-16 | 2018-07-06 | 武汉低维材料研究院有限公司 | A kind of preparation method and applications for restoring fluorinated graphene-cobalt manganese alloy oxide nano-slice compound |
| CN108906091A (en) * | 2018-06-26 | 2018-11-30 | 浙江工业大学 | Co Cr hydrotalcite loads bismuth oxyiodide composite material and preparation method and application |
| CN111564324A (en) * | 2020-06-28 | 2020-08-21 | 电子科技大学 | Preparation method of carbon cloth @ sheet cobalt-aluminum hydrotalcite flexible electrode |
| CN113651348A (en) * | 2021-08-12 | 2021-11-16 | 山东重山光电材料股份有限公司 | Aluminum oxide coated carbon fluoride, preparation method and application thereof, and lithium battery |
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| CN107117599A (en) * | 2017-04-19 | 2017-09-01 | 东华大学 | A kind of preparation method of the miscellaneous graphene of chlorine |
| CN107117599B (en) * | 2017-04-19 | 2020-11-13 | 东华大学 | Preparation method of chloro-hybrid graphene |
| CN107403700A (en) * | 2017-07-21 | 2017-11-28 | 安徽大学 | A kind of preparation method of double oxide/graphene nano combination electrode material |
| CN107403700B (en) * | 2017-07-21 | 2018-12-21 | 安徽大学 | A kind of preparation method of double oxide/graphene nano combination electrode material |
| CN108257796A (en) * | 2018-01-16 | 2018-07-06 | 武汉低维材料研究院有限公司 | A kind of preparation method and applications for restoring fluorinated graphene-cobalt manganese alloy oxide nano-slice compound |
| CN108257796B (en) * | 2018-01-16 | 2019-10-08 | 武汉联维新材料科技有限公司 | A kind of reduction fluorinated graphene-cobalt manganese alloy oxide nano-slice compound preparation method and applications |
| CN108906091B (en) * | 2018-06-26 | 2021-04-06 | 浙江工业大学 | Cobalt-chromium hydrotalcite-loaded bismuth oxyiodide composite material and preparation method and application thereof |
| CN108906091A (en) * | 2018-06-26 | 2018-11-30 | 浙江工业大学 | Co Cr hydrotalcite loads bismuth oxyiodide composite material and preparation method and application |
| CN111564324A (en) * | 2020-06-28 | 2020-08-21 | 电子科技大学 | Preparation method of carbon cloth @ sheet cobalt-aluminum hydrotalcite flexible electrode |
| CN111564324B (en) * | 2020-06-28 | 2022-06-14 | 电子科技大学 | Preparation method of carbon cloth @ sheet cobalt-aluminum hydrotalcite flexible electrode |
| CN113651348A (en) * | 2021-08-12 | 2021-11-16 | 山东重山光电材料股份有限公司 | Aluminum oxide coated carbon fluoride, preparation method and application thereof, and lithium battery |
| CN113651348B (en) * | 2021-08-12 | 2023-10-27 | 山东重山光电材料股份有限公司 | Aluminum oxide coated carbon fluoride, preparation method and application thereof and lithium battery |
| CN113769711A (en) * | 2021-10-13 | 2021-12-10 | 长治医学院 | Inorganic non-metallic material with high specific surface area and preparation method thereof |
| CN113769711B (en) * | 2021-10-13 | 2023-10-13 | 长治医学院 | Inorganic nonmetallic material with high specific surface area and preparation method thereof |
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