CN108607477A - A kind of chitin nanofibrils and graphene composite aerogel and preparation method thereof - Google Patents
A kind of chitin nanofibrils and graphene composite aerogel and preparation method thereof Download PDFInfo
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- CN108607477A CN108607477A CN201810315026.3A CN201810315026A CN108607477A CN 108607477 A CN108607477 A CN 108607477A CN 201810315026 A CN201810315026 A CN 201810315026A CN 108607477 A CN108607477 A CN 108607477A
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- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J13/00—Colloid chemistry, e.g. the production of colloidal materials or their solutions, not otherwise provided for; Making microcapsules or microballoons
- B01J13/0091—Preparation of aerogels, e.g. xerogels
Abstract
The invention discloses a kind of chitin nanofibrils and graphene composite aerogel and preparation method thereof, including chitin and graphene oxide solution, preparation method to be：Chitin is subjected to nanofibrils processing first, then chitin nanofibrils and graphene oxide are subjected to intercalation synthesis, obtain the composite solution of chitin nanofibrils and graphene oxide, redox method is recycled to handle the composite solution of chitin nanofibrils and graphene oxide, the compound of chitin nanofibrils and graphene is obtained, finally by being freeze-dried up to chitin nanofibrils and graphene composite aerogel.Raw material sources of the present invention are extensive, cheap, and preparation method is simple, and prepared aerogel composite is had excellent performance, and can be widely applied to electrochemistry, sensing technology, the energy and adsorbing domain.
Description
Technical field
The present invention relates to graphene composite aerogel, especially a kind of chitin nanofibrils and graphene composite aerogel
And preparation method thereof.
Background technology
Chitin is the biopolymer that storage capacity is the abundantest on the earth, and quilt so far in nature
It was found that unique positively charged nanofiber.Under normal conditions, by Mechanical Method handle (nanometer refine method, sonioation method,
High pressure homogenization method) and strong acid (such as concentrated sulfuric acid, concentrated hydrochloric acid, concentrated phosphoric acid) chitin is hydrolyzed can obtain Nanowire
Silkization chitin.Chitin nanofibrils are a kind of novel biomass nano materials with high length-diameter ratio and specific surface area,
Not only biocompatibility, Environmental compatibility are good, but also have splendid mechanical property, are current biomass field of nanometer material technology
Research hotspot.
Graphene be it is a kind of with hexagonal honeycomb shape structural thickness be only single layer atom two-dimensional nano-carbon material, wherein
Carbon atom with sp2Hydridization form be closely aligned.Research shows that the specific surface area of graphene can be up to 2600m2/ g, poplar
Family name's modulus is about 1100Gpa, fracture strength 125Gpa, mechanical strength 1060Gpa, thermal conductivity 5000W/m.K, and is had
Superior electron transport ability.Graphene aerogel represents the novel porous carbon of one kind that graphene is constructed in three-dimensional macro scale and receives
Rice material, not only possesses the excellent function of graphene itself, also possesses abundant hole, ultralight density, bigger serface, low
Thermal coefficient, high conductivity, good mechanics compressibility and structural stability, make it in electronic engineering, protection works, sensing
The wide application prospect in the fields such as technology, Thermal Power Engineering and energy storage.Although grapheme material aerogel material is had excellent performance,
Large-scale production cost is higher, and a large amount of organic solvent is used in production process, is easy to cause secondary pollution to environment.
It is chitin nanofibrils and graphene are compound so that the performance of chitin nanofibrils graphene aerogel composite can be with
It compares favourably with graphene aerogel, but the preparation process of chitin nanofibrils graphene composite aerogel is also immature.
Invention content
In order to overcome the defects of structure is single, production cost is high in graphene aerogel preparation process in the prior art, this
A kind of chitin nanofibrils of invention offer and graphene composite aerogel and preparation method thereof.
The technical solution adopted by the present invention to solve the technical problems is：A kind of chitin nanofibrils and graphene are compound
Aeroge and preparation method thereof, including chitin and graphene oxide, preparation method be：Chitin is subjected to nanofibrils first
Then chitin nanofibrils and graphene oxide are carried out intercalation synthesis by processing, obtain chitin nanofibrils and oxidation stone
The composite solution of black alkene recycles redox method to carry out the composite solution of chitin nanofibrils and graphene oxide
Processing, obtains the compound of chitin nanofibrils and graphene, is dried to get first finally by the method for freeze-drying
Shell element nanofibrils and graphene composite aerogel；Specifically preparation process is：
Step 1, the method that will be enriched in the material use chemistry extracting of chitin are purified, and crust after purification is obtained
Then material after purification is configured to the solution that 1L mass fractions are 1% by cellulosic material, 0.1mmol TEMPO, 1mmol is added
Sodium bromide stirs 20-30min at magnetic stirring apparatus 500-800rpm, is then heated to 60 DEG C, and the hypochlorous acid of 3mmol is added
Sodium, using the pH value of sodium hydrate regulator solution, pH=10 seals device, reacts 2h, and ethyl alcohol is added, and reaction was completed, finally
Obtained sample distilled water flushing is clean, and pH=6-7 passes through machine by obtained sample preparation at the solution of 0.01-1%
Tool method handles 1-2h, obtains the dispersion liquid of chitin fiber；
Step 2, the dispersion liquid of the chitin fiber that step 1 is obtained using ultrasonic grinder (1000-1500W) into
Row processing, the dispersion liquid temperature of chitin fiber is controlled at 25-45 DEG C, processing time 60-120min, is finally obtained uniformly
The chitin nanofibrils dispersion liquid of dispersion；
Step 3 carries out decentralized processing to graphene oxide solution first, mechanical agitation on normal temperature and pressure magnetic stirring apparatus
Then 10-20min utilizes ultrasonic grinder (500-1800W) to handle 1-2h, it is molten to obtain evenly dispersed graphene oxide
Liquid, it is 1 that mass ratio then, which is added, in step 2 fibrillation treated chitin nanofibrils dispersion liquid：20-45 is evenly dispersed
Graphene oxide solution, 800-1000rpm stirs 0.5-1h on normal temperature and pressure magnetic stirring apparatus, and refiner handles 20-
30min finally uses ultrasonic grinder (800-1500W) to handle 1-2h, obtains evenly dispersed chitin nanofibrils and oxygen
Graphite alkene mixed solution；
N is added under normal temperature and pressure in step 4, the mixed solution that step 3 is obtained2H4·H2O, wherein N2H4·H2O：Oxygen
The mass ratio of graphite alkene is 1：After being dispersed with stirring uniformly, NH is added in 2-63·H2The pH=10 of O regulation systems, normal temperature and pressure magnetic
15-20min is stirred on power blender 500-800rpm, reaction system is sealed, is heated to 85-95 DEG C, reacts 1-2h, is terminated anti-
Answer postcooling to room temperature；
Then step 5, the reaction solution that step 4 is obtained first are utilized with the method and distilled water of dialysis into line replacement
The method of centrifugation obtains the compound of chitin nanofibrils and graphene with distilled water flushing to neutrality；
The compound of chitin nanofibrils and graphene that step 5 obtains is placed in -80 DEG C of freezing 2h, so by step 6
The composite aerogel to get chitin nanofibrils and graphene is dried using freeze drier afterwards.
Above-mentioned a kind of chitin nanofibrils and graphene composite aerogel and preparation method thereof, it is rich in the step 1
Material containing chitin is one or two kinds of in arthropod shell, mollusk inner casing or cartilage and mushroom.
Above-mentioned a kind of chitin nanofibrils and graphene composite aerogel and preparation method thereof, in the step 1
Mechanical Method is handled：Then magnetic stirrer 20-30min under normal temperature and pressure handles 20-30min, mill by refiner
Machine handles 30-60min, and 30-60min is handled finally by ultrasonic grinder.
Above-mentioned a kind of chitin nanofibrils and graphene composite aerogel and preparation method thereof, the step 6 freezing
Condenser temperature is -80--50 DEG C, vacuum degree 10-100Pa, processing time 5-12h when processing is dried in drying machine.
The present invention has the following advantages and high-lighting effect compared with prior art：
The invention has the advantages that chitin nanofibrils of the present invention use mechanical doping with graphene composite aerogel
Method chitin nanofibrils and graphene aerogel are compound, pass through environment-friendly preparation method thereof introduce chitin nanofibrils
It not only overcomes graphene aerogel short texture itself to be difficult to form the material of compact structure, also increases graphene aerogel
The defect of material, to increase the specific surface area and porosity of graphene aerogel material.Raw material sources of the present invention are extensive, valence
Lattice are cheap, and preparation method is simple, and prepared aerogel composite is had excellent performance, and can be widely applied to electrochemistry, sensing
Technology, the energy and adsorbing domain.
Description of the drawings
Present invention will be further explained below with reference to the attached drawings and examples.
Fig. 1 is that the SEM of chitin nanofibrils of the present invention schemes；
Fig. 2 is that chitin nanofibrils of the present invention are schemed with graphene composite aerogel SEM.
Specific implementation mode
In order to illustrate more clearly of concrete structure of the invention, the content of operation principle, below in conjunction with the accompanying drawings to the present invention
It is described further, but following embodiment is merely to illustrate the present invention, is not limited to the scope of the present invention.For ability
For the those of ordinary skill in domain, without creative efforts, obtained according to this drawings and examples other
Embodiment belongs to protection scope of the present invention.
【Embodiment 1】
A kind of chitin nanofibrils and graphene composite aerogel and preparation method thereof, including chitin and graphite oxide
Alkene, preparation method are：Chitin is subjected to nanofibrils processing first, then by chitin nanofibrils and graphene oxide into
Row intercalation synthesis obtains the composite solution of chitin nanofibrils and graphene oxide, recycles redox method to first
The composite solution of shell element nanofibrils and graphene oxide is handled, and the compound of chitin nanofibrils and graphene is obtained
Object is dried finally by the method for freeze-drying to get chitin nanofibrils and graphene composite aerogel；Specifically
Preparation process is：
Step 1, the method that will be enriched in the material use chemistry extracting of chitin are purified, and crust after purification is obtained
Then material after purification is configured to the solution that 1L mass fractions are 1% by cellulosic material, 0.1mmol TEMPO, 1mmol is added
Sodium bromide stirs 30min at magnetic stirring apparatus 500rpm, is then heated to 60 DEG C, and the sodium hypochlorite of 3mmol is added, and utilizes
The pH value of sodium hydrate regulator solution, pH=10 seal device, reacts 2h, and ethyl alcohol is added, and reaction was completed, will finally obtain
Sample distilled water flushing is clean, pH=6.8, by obtained sample preparation at 0.01% solution, is handled by Mechanical Method
To the dispersion liquid of chitin fiber；
Step 2, at the dispersion liquid of the chitin fiber obtained to step 1 using ultrasonic grinder (1000W)
Reason controls the dispersion liquid temperature of chitin fiber at 25 DEG C, and processing time 60min finally obtains evenly dispersed crust
Plain nanofibrils dispersion liquid；
Step 3 carries out decentralized processing to graphene oxide solution first, mechanical agitation on normal temperature and pressure magnetic stirring apparatus
Then 10min utilizes ultrasonic grinder (500W) to handle 2h, obtains evenly dispersed graphene oxide solution, then will step
It is 1 that mass ratio, which is added, in rapid two fibrillation treated chitin nanofibrils dispersion liquid：20 evenly dispersed graphene oxides are molten
Liquid, 800rpm stirs 1h on normal temperature and pressure magnetic stirring apparatus, and refiner handles 30min, finally uses ultrasonic grinder (1500W)
1h is handled, evenly dispersed chitin nanofibrils and graphene oxide mixed solution are obtained；
N is added under normal temperature and pressure in step 4, the mixed solution that step 3 is obtained2H4·H2O, wherein N2H4·H2O：Oxygen
The mass ratio of graphite alkene is 1：2, after being dispersed with stirring uniformly, NH is added3·H2The pH=10 of O regulation systems, normal temperature and pressure magnetic force
20min is stirred on blender 500rpm, reaction system is sealed, is heated to 85 DEG C, reacts 2h, terminates reaction postcooling to room
Temperature；
Then step 5, the reaction solution that step 4 is obtained first are utilized with the method and distilled water of dialysis into line replacement
The method of centrifugation obtains the compound of chitin nanofibrils and graphene with distilled water flushing to neutrality；
Step 6, the compound that step 5 is obtained to chitin nanofibrils and graphene are placed in -80 DEG C of freezing 2h, then
The composite aerogel to get chitin nanofibrils and graphene is dried using freeze drier.
The material rich in chitin is arthropod shell, mollusk inner casing or cartilage and mushroom in the step 1
In it is one or two kinds of；Mechanical Method in the step 1, which is handled, is：Magnetic stirrer 20min under normal temperature and pressure, so
20min is handled by refiner afterwards, disc mill handles 30min, and 30min is handled finally by ultrasonic grinder；The step
Condenser temperature is -80 DEG C, vacuum degree 10Pa, processing time 5h when processing is dried in six freeze driers.
【Embodiment 2】
A kind of chitin nanofibrils and graphene composite aerogel and preparation method thereof, including chitin and graphite oxide
Alkene, preparation method are：Chitin is subjected to nanofibrils processing first, then by chitin nanofibrils and graphene oxide into
Row intercalation synthesis obtains the composite solution of chitin nanofibrils and graphene oxide, recycles redox method to first
The composite solution of shell element nanofibrils and graphene oxide is handled, and the compound of chitin nanofibrils and graphene is obtained
Object is dried finally by the method for freeze-drying to get chitin nanofibrils and graphene composite aerogel；Specifically
Preparation process is：
Step 1, the method that will be enriched in the material use chemistry extracting of chitin are purified, and crust after purification is obtained
Then material after purification is configured to the solution that 1L mass fractions are 1% by cellulosic material, 0.1mmolTEMPO, 1mmol bromine is added
Change sodium, stirs 20min at magnetic stirring apparatus 800rpm, be then heated to 60 DEG C, the sodium hypochlorite of 3mmol is added, utilizes hydrogen
Sodium oxide molybdena adjusts the pH value of solution, and pH=10 seals device, reacts 2h, and ethyl alcohol is added, and reaction was completed, the sample that will finally obtain
Product distilled water flushing is clean, pH=7, by obtained sample preparation at 1% solution, handles to obtain chitin by Mechanical Method
The dispersion liquid of fiber；
Step 2, at the dispersion liquid of the chitin fiber obtained to step 1 using ultrasonic grinder (1500W)
Reason controls the dispersion liquid temperature of chitin fiber at 45 DEG C, and processing time 120min finally obtains evenly dispersed crust
Plain nanofibrils dispersion liquid；
Step 3 carries out decentralized processing to graphene oxide solution first, mechanical agitation on normal temperature and pressure magnetic stirring apparatus
Then 120min utilizes ultrasonic grinder (1800W) to handle 1h, obtains evenly dispersed graphene oxide solution, then will
It is 1 that mass ratio, which is added, in step 2 fibrillation treated chitin nanofibrils dispersion liquid：45 evenly dispersed graphene oxides
Solution, 1000rpm stirs 0.5h on normal temperature and pressure magnetic stirring apparatus, and refiner handles 30min, finally uses ultrasonic grinder
(1500W) handles 1h, obtains evenly dispersed chitin nanofibrils and graphene oxide mixed solution；
N is added under normal temperature and pressure in step 4, the mixed solution that step 3 is obtained2H4·H2O, wherein N2H4·H2O：Oxygen
The mass ratio of graphite alkene is 1：6, after being dispersed with stirring uniformly, NH is added3·H2The pH=10 of O regulation systems, normal temperature and pressure magnetic force
20min is stirred on blender 800rpm, reaction system is sealed, is heated to 95 DEG C, reacts 1h, terminates reaction postcooling to room
Temperature；
Then step 5, the reaction solution that step 4 is obtained first are utilized with the method and distilled water of dialysis into line replacement
The method of centrifugation obtains the compound of chitin nanofibrils and graphene with distilled water flushing to neutrality；
The compound of chitin nanofibrils and graphene that step 5 obtains is placed in -80 DEG C of freezing 2h, so by step 6
The composite aerogel to get chitin nanofibrils and graphene is dried using freeze drier afterwards.
The material rich in chitin is arthropod shell, mollusk inner casing or cartilage and mushroom in the step 1
In it is one or two kinds of；Mechanical Method in the step 1, which is handled, is：Magnetic stirrer 30min under normal temperature and pressure, so
30min is handled by refiner afterwards, disc mill handles 60min, and 60min is handled finally by ultrasonic grinder；The step
Condenser temperature is -50 DEG C, vacuum degree 100Pa, processing time 12h when processing is dried in six freeze driers.
【Embodiment 3】
A kind of chitin nanofibrils and graphene composite aerogel and preparation method thereof, including chitin and graphite oxide
Alkene, preparation method are：Chitin is subjected to nanofibrils processing first, then by chitin nanofibrils and graphene oxide into
Row intercalation synthesis obtains the composite solution of chitin nanofibrils and graphene oxide, recycles redox method to first
The composite solution of shell element nanofibrils and graphene oxide is handled, and the compound of chitin nanofibrils and graphene is obtained
Object is dried finally by the method for freeze-drying to get chitin nanofibrils and graphene composite aerogel；Specifically
Preparation process is：
Step 1, the method that will be enriched in the material use chemistry extracting of chitin are purified, and crust after purification is obtained
Then material after purification is configured to the solution that 1L mass fractions are 1% by cellulosic material, 0.1mmol TEMPO, 1mmol is added
Sodium bromide stirs 25min at magnetic stirring apparatus 600rpm, is then heated to 60 DEG C, and the sodium hypochlorite of 3mmol is added, and utilizes
The pH value of sodium hydrate regulator solution, pH=10 seal device, reacts 2h, and ethyl alcohol is added, and reaction was completed, will finally obtain
Sample distilled water flushing is clean, pH=6.5, by obtained sample preparation at 0.1% solution, handles to obtain by Mechanical Method
The dispersion liquid of chitin fiber；
Step 2, at the dispersion liquid of the chitin fiber obtained to step 1 using ultrasonic grinder (1200W)
Reason controls the dispersion liquid temperature of chitin fiber at 30 DEG C, and processing time 80min finally obtains evenly dispersed crust
Plain nanofibrils dispersion liquid；
Step 3 carries out decentralized processing to graphene oxide solution first, mechanical agitation on normal temperature and pressure magnetic stirring apparatus
Then 15min utilizes ultrasonic grinder (1200W) to handle 1.5h, obtains evenly dispersed graphene oxide solution, then will
It is 1 that mass ratio, which is added, in step 2 fibrillation treated chitin nanofibrils dispersion liquid：30 evenly dispersed graphene oxides
Solution, 900rpm stirs 0.8h on normal temperature and pressure magnetic stirring apparatus, and refiner handles 25min, finally uses ultrasonic grinder
(1200W) handles 1.2h, obtains evenly dispersed chitin nanofibrils and graphene oxide mixed solution；
N is added under normal temperature and pressure in step 4, the mixed solution that step 3 is obtained2H4·H2O, wherein N2H4·H2O：Oxygen
The mass ratio of graphite alkene is 1：4, after being dispersed with stirring uniformly, NH is added3·H2The pH=10 of O regulation systems, normal temperature and pressure magnetic force
18min is stirred on blender 700rpm, reaction system is sealed, is heated to 90 DEG C, reacts 2h, terminates reaction postcooling to room
Temperature；
Then step 5, the reaction solution that step 4 is obtained first are utilized with the method and distilled water of dialysis into line replacement
The method of centrifugation obtains the compound of chitin nanofibrils and graphene with distilled water flushing to neutrality；
Step 6, the compound that step 5 is obtained to chitin nanofibrils and graphene are placed in -80 DEG C of freezing 2h, then
The composite aerogel to get chitin nanofibrils and graphene is dried using freeze drier.
The material rich in chitin is arthropod shell, mollusk inner casing or cartilage and mushroom in the step 1
In it is one or two kinds of；Mechanical Method in the step 1, which is handled, is：Magnetic stirrer 25min under normal temperature and pressure, so
25min is handled by refiner afterwards, disc mill handles 40min, and 40min is handled finally by ultrasonic grinder；The step
Condenser temperature is -60 DEG C, vacuum degree 50Pa, processing time 8h when processing is dried in six freeze driers.
Above example is only exemplary embodiment of the present invention, is not used in the limitation present invention, protection scope of the present invention
It is defined by the claims.Those skilled in the art can within the spirit and scope of the present invention make respectively the present invention
Kind modification or equivalent replacement, this modification or equivalent replacement also should be regarded as being within the scope of the present invention.
Claims (4)
1. a kind of chitin nanofibrils and graphene composite aerogel and preparation method thereof, it is characterised in that：Including chitin
And graphene oxide, preparation method are：First by chitin carry out nanofibrils processing, then by chitin nanofibrils with
Graphene oxide carries out intercalation synthesis, obtains the composite solution of chitin nanofibrils and graphene oxide, recycles oxidation also
Former method handles the composite solution of chitin nanofibrils and graphene oxide, obtains chitin nanofibrils and stone
The compound of black alkene is dried finally by the method for freeze-drying to get chitin nanofibrils and the compound gas of graphene
Gel；Specifically preparation process is：
Step 1, the method that will be enriched in the material use chemistry extracting of chitin are purified, and crust material after purification is obtained
Then material after purification is configured to the solution that 1L mass fractions are 1% by material, 0.1mmol TEMPO, 1mmol brominations is added
Sodium stirs 20-30min at magnetic stirring apparatus 500-800rpm, is then heated to 60 DEG C, and the sodium hypochlorite of 3mmol is added, profit
With the pH value of sodium hydrate regulator solution, pH=10 seals device, reacts 2h, and ethyl alcohol is added, and reaction was completed, will finally obtain
Sample distilled water flushing it is clean, pH=6-7, by obtained sample preparation at the solution of 0.01-1%, at Mechanical Method
1-2h is managed, the dispersion liquid of chitin fiber is obtained；
Step 2 utilizes the dispersion liquid for the chitin fiber that the ultrasonic grinder that power is 1000-1500W obtains step 1
It is handled, the dispersion liquid temperature of chitin fiber is controlled at 25-45 DEG C, processing time 60-120min, finally obtained
The chitin nanofibrils dispersion liquid of even dispersion；
Step 3 carries out decentralized processing to graphene oxide solution first, mechanical agitation 10- on normal temperature and pressure magnetic stirring apparatus
20min, it is that 1000-1500W ultrasonic grinders handle 1-2h then to utilize power, and it is molten to obtain evenly dispersed graphene oxide
Liquid, it is 1 that mass ratio then, which is added, in step 2 fibrillation treated chitin nanofibrils dispersion liquid：20-45 is evenly dispersed
Graphene oxide solution, 800-1000rpm stirs 0.5-1h on normal temperature and pressure magnetic stirring apparatus, and refiner handles 20-
30min is finally that 1000-1500W ultrasonic grinders handle 1-2h with power, obtains evenly dispersed chitin nanofibrils
With graphene oxide mixed solution；
N is added under normal temperature and pressure in step 4, the mixed solution that step 3 is obtained2H4·H2O, wherein N2H4·H2O：Aoxidize stone
The mass ratio of black alkene is 1：After being dispersed with stirring uniformly, NH is added in 2-63·H2The pH=10 of O regulation systems, normal temperature and pressure magnetic force stir
It mixes and stirs 15-20min on device 500-800rpm, reaction system is sealed, be heated to 85-95 DEG C, react 1-2h, after terminating reaction
It is cooled to room temperature；
Then step 5, the reaction solution that step 4 is obtained first utilize centrifugation with the method for dialysis and distilled water into line replacement
Method obtain the compound of chitin nanofibrils and graphene with distilled water flushing to neutrality；
Step 6, the compound that step 5 is obtained to chitin nanofibrils and graphene are placed in -80 DEG C of freezing 2h, then utilize
The composite aerogel to get chitin nanofibrils and graphene is dried in freeze drier.
2. a kind of chitin nanofibrils according to claim 1 and graphene composite aerogel and preparation method thereof,
It is characterized in that, the material rich in chitin is arthropod shell, mollusk inner casing or cartilage and bacterium in the step 1
It is one or two kinds of in class.
3. a kind of chitin nanofibrils according to claim 1 and graphene composite aerogel and preparation method thereof,
It is characterized in that, the Mechanical Method processing in the step 1 is：Magnetic stirrer 20-30min under normal temperature and pressure, then passes through
Refiner handles 20-30min, and disc mill handles 30-60min, and 30-60min is handled finally by ultrasonic grinder.
4. a kind of chitin nanofibrils according to claim 1 and graphene composite aerogel and preparation method thereof,
It is characterized in that, condenser temperature is -80--50 DEG C when processing is dried in the step 6 freeze drier, vacuum degree 10-
100Pa, processing time 5-12h.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115530222A (en) * | 2022-09-19 | 2022-12-30 | 福建农林大学 | Food fresh-keeping pad with slow-release antibacterial and antioxidant functions and preparation method thereof |
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| CN105110316A (en) * | 2015-08-05 | 2015-12-02 | 哈尔滨工业大学 | Graphene-carbon nanofiber composite aerogel preparation method |
| CN105161312A (en) * | 2015-09-24 | 2015-12-16 | 复旦大学 | Carbon nano fiber-graphene composite aerogel and cooperative assembly preparation method thereof |
| CN105525386A (en) * | 2016-01-27 | 2016-04-27 | 中国林业科学研究院木材工业研究所 | Chitin nano-fibril and preparation method thereof |
| CN106890605A (en) * | 2017-02-21 | 2017-06-27 | 中国林业科学研究院木材工业研究所 | A kind of three-dimensional grapheme composite aerogel and preparation method thereof |
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| CN105110316A (en) * | 2015-08-05 | 2015-12-02 | 哈尔滨工业大学 | Graphene-carbon nanofiber composite aerogel preparation method |
| CN105161312A (en) * | 2015-09-24 | 2015-12-16 | 复旦大学 | Carbon nano fiber-graphene composite aerogel and cooperative assembly preparation method thereof |
| CN105525386A (en) * | 2016-01-27 | 2016-04-27 | 中国林业科学研究院木材工业研究所 | Chitin nano-fibril and preparation method thereof |
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| CN115530222A (en) * | 2022-09-19 | 2022-12-30 | 福建农林大学 | Food fresh-keeping pad with slow-release antibacterial and antioxidant functions and preparation method thereof |
| CN115530222B (en) * | 2022-09-19 | 2024-01-26 | 福建农林大学 | Food fresh-keeping pad with slow-release antibacterial and antioxidant functions and preparation method thereof |
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Application publication date: 20181002 |