CN201458743U - Interactive field device for stripping graphite oxide into functional graphene - Google Patents
Interactive field device for stripping graphite oxide into functional graphene Download PDFInfo
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- CN201458743U CN201458743U CN200920069942XU CN200920069942U CN201458743U CN 201458743 U CN201458743 U CN 201458743U CN 200920069942X U CN200920069942X U CN 200920069942XU CN 200920069942 U CN200920069942 U CN 200920069942U CN 201458743 U CN201458743 U CN 201458743U
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Abstract
The utility model relates to an interactive field device for stripping graphite oxide into functional graphene, comprising a stripping kettle, a thermal unit component, a force unit component, an acoustic unit component and electrical unit components. The stripping kettle is arranged in the thermal unit component. Conduction devices of the force unit component and the acoustic unit component are arranged in the stripping kettle. The electrical unit components are arranged at two sides of the thermal unit component. Compared with the prior art, the utility model has the advantages of simple operation, low cost, high efficiency and the like.
Description
Technical field
The utility model relates to mutual stripping off device, relates in particular to and peels off the device that graphite oxide is the function Graphene.
Background technology
Graphene (Graphene) is a kind of two-dimensional nano material of recent findings, the arrangement mode of carbon atom is consistent with the monoatomic layer of graphite, different with traditional two-dimensional nano material (the some dimensions of material are in the nanoscale scope), the diameter of the thickness of Graphene and a carbon atom is suitable, is about
It is a kind of two-dimensional material truly.Graphene has performances such as excellent electricity, magnetic, light, heat, power, has received huge potential application foreground at microelectronic device, nano composite material etc., and this material has caused researchist's very big interest and extensive concern since 2004 are found.The preparation method of graphene that lateral dimension commonly used at present narrows comprises: micromechanical forces is peeled off method, epitaxial growth method and chemical method.Micromechanics is peeled off the method complex steps, production efficiency is low; And the epitaxial growth method production process needs the environment of high temperature, high vacuum, causes its cost high, and they are difficult to large-scale commercial production.
The production cost of chemical method is low and output is big, is expected to one of main method that becomes mass production two-dimensional nano material Graphene.This method utilizes chemical reaction with graphite oxidation, obtains graphite oxide, has weakened the interaction force of graphite layers.Stankovich (Journal of Materials Chemistry, studies show that 2006), be scattered in graphite oxide in the polarizable medium (as water) and under action of ultrasonic waves, can be stripped from function Graphene into individual layer, peel off the Graphene of method preparation compares with micromechanics, more chemical functional groups on the lamella of function Graphene, the function Graphene obtains Graphene after chemical reduction.As the interpolation phase of nano composite material, the functional group in the function Graphene has strengthened the avidity of function Graphene with body material, has improved the dispersiveness of Graphene in matrix, and the over-all properties of matrix material is improved.But Si, Y. people such as (Nano Letters, 2008) studies show that, graphite oxide is in the process of peeling off, because action of ultrasonic waves causes producing in the function Graphene some defectives, not only influence the performance of function Graphene, and influenced the performance of final reduzate Graphene.Graphite oxide peel off for the function Graphene be key and the core procedure that chemical method prepares Graphene, therefore, need to explore new preparation technology, to reduce the negative impact of ultrasonic wave to the function Graphene, improve the charge stripping efficiency of graphite oxide, improve the performance of final reduzate Graphene.
Summary of the invention
The purpose of this utility model is exactly to provide a kind of simple to operate, with low cost, efficient to peel off the mutual field device that graphite oxide is the function Graphene efficiently in order to overcome the defective that above-mentioned prior art exists.
The purpose of this utility model can be achieved through the following technical solutions: a kind ofly peel off the mutual field device that graphite oxide is the function Graphene, it is characterized in that, this device comprises peels off still, hot cell assembly, power unit block, sound unit block and electric unit assembly, the described still of peeling off is arranged in the hot cell assembly, described power unit block harmony unit block is arranged to be peeled off in the still, and described electric unit assembly is arranged at hot cell assembly both sides.
Described power unit block is made up of driver and agitator, and agitator one end places to be peeled off in the still, and the other end connects driver.
Described sound unit block is made up of ultrasonic generator and transmitter, and an end of ultrasonic variable amplitude bar places to be peeled off in the still, and the other end connects ultrasonic generator.
Described electric unit assembly is made up of surge generator and electrode, and electrode is arranged on hot cell assembly both sides, and surge generator is arranged on the electrode outside.
Described hot cell assembly is that temperature is 60-90 ℃ a water tank.
Compared with prior art, the utility model is a kind of peel off graphite oxide be the mutual field device of function Graphene solved rationally, efficiently in the past graphite oxide peel off for ultrasonic wave in the function Graphene process to the problem that causes defective of function Graphene, the function Graphene defective that makes is few, through obtaining the Graphene of excellent performance after suitably reduction is handled, can satisfy different application demands, install simply, with low cost, peeling off graphite oxide by this device is function Graphene quality height.
Description of drawings
Fig. 1 peels off the structural representation that graphite oxide is the mutual field device of function Graphene for the utility model;
Fig. 2 is the atomic force microscope picture of the Graphene of acquisition under the mutual field action.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is elaborated.
As shown in Figure 1, a kind ofly peel off the mutual field device that graphite oxide is the function Graphene, it is characterized in that, this device comprises peels off still 1, the hot cell assembly is the water tank 2 of Controllable Temperature, the power unit block, sound unit block and electric unit assembly, described power unit block is made up of driver 3 and agitator 4, agitator 4 one ends place to be peeled off in the still 1, the other end connects driver 3, described sound unit block is made up of ultrasonic generator 5 and transmitter 6, ultrasonic transducer (horn) 5 one ends place to be peeled off in the still 1, the other end connects ultrasonic generator 6, described electric unit assembly is made up of surge generator 7 and electrode 8, electrode 8 is arranged on water tank 2 both sides, and surge generator 7 is arranged on electrode 8 outsides.
Adopting above-mentioned mutual field device to peel off graphite oxide is that the method for function Graphene is as follows:
(1) with the 200mg graphite oxide as disperse phase, the deionized water of 100ml is as dispersion medium, making 100ml concentration is 2mgml
-1Graphite oxide and the mixed solution of deionized water, the temperature and the rotating speed that are placed on 70 ℃ are peeling off in the still under 500 rev/mins the field of force acting in conjunction, obtain uneven tawny mixed solution after reacting 30min.
(2) the inhomogeneous tawny mixed solution of gained being placed, is in the sound field that 200 rev/mins the field of force, electric field that strength of electric field is 3V/m and power are 100W constitute mutual by 70 ℃ temperature, rotating speed.Reaction is carried out centrifugal treating behind the 40min, and time and rotating speed are respectively 5min, 2000 rev/mins, get supernatant liquor, obtain the function Graphene colloidal sol of uniformity at last.The statistics analysis revealed, the number of plies is that function Graphene more than 2 layers and 2 layers accounts for 80% in the product, laterally mean sizes is 1200nm, has reduced by 40% than the median size of graphite oxide.
Adopting and peeling off graphite oxide as the mutual field device of embodiment 1 is that the method for function Graphene is as follows:
(1) with the 500mg graphite oxide as disperse phase, the deionized water of 500ml is as dispersion medium, making 100ml concentration is 5mgml
-1Graphite oxide and the mixed solution of deionized water.It is peeling off in the still under 200 rev/mins the field of force acting in conjunction that mixed solution is placed 65 ℃ temperature and rotating speed, obtains uneven tawny mixed solution after reacting 60min.
(2) the inhomogeneous tawny mixed solution of gained is placed, by 65 ℃ temperature, rotating speed is in the sound field that 400 rev/mins the field of force, electric field that strength of electric field is 18V/m and power are 50W constitute mutual. carry out centrifugal treating behind the reaction 10min, time and rotating speed are respectively 15min, 3000 rev/mins, get supernatant liquor, obtain the function Graphene colloidal sol of uniformity at last. the statistics analysis revealed, the number of plies is that 4 one-tenth and 4 layers account for 85% with the upper-layer functionality Graphene in the product, laterally mean sizes is 1500nm, has reduced by 25%. than the median size of graphite oxide
Adopting and peeling off graphite oxide as the mutual field device of embodiment 1 is that the method for function Graphene is as follows:
(1) with the 50mg graphite oxide as disperse phase, the deionized water of 100ml is as dispersion medium, making 100ml concentration is 0.5mgml
-1Graphite oxide and the mixed solution of deionized water.It is peeling off in the still under 800 rev/mins the field of force acting in conjunction that mixed solution is placed 90 ℃ temperature and rotating speed, obtains uneven tawny mixed solution after reacting 200min.
(2) the inhomogeneous tawny mixed solution of gained being placed, is in the sound field that 700 rev/mins the field of force, electric field that strength of electric field is 12V/m and power are 120W constitute mutual by 75 ℃ temperature, rotating speed.Reaction is carried out centrifugal treating behind the 30min, and time and rotating speed are respectively 10min, 3000 rev/mins, get supernatant liquor, obtain the function Graphene colloidal sol of uniformity at last.The statistics analysis revealed, the number of plies is that 1 layer function Graphene accounts for 90% in the product, laterally mean sizes is 1800nm, has reduced by 10% than the median size of graphite oxide, as shown in Figure 2.
Adopting and peeling off graphite oxide as the mutual field device of embodiment 1 is that the method for function Graphene is as follows:
(1) with the 300mg graphite oxide as disperse phase, the deionized water of 100ml is as dispersion medium, making 100ml concentration is 3mgml
-1Graphite oxide and the mixed solution of deionized water.It is peeling off in the still under 200 rev/mins the field of force acting in conjunction that mixed solution is placed 65 ℃ temperature and rotating speed, obtains uneven tawny mixed solution after reacting 70min.
(2) the inhomogeneous tawny mixed solution of gained being placed, is in the sound field that 200 rev/mins the field of force, electric field that strength of electric field is 16V/m and power are 180W constitute mutual by 70 ℃ temperature, rotating speed.Reaction is carried out centrifugal treating behind the 50min, and time and rotating speed are respectively 5min, 3000 rev/mins, get supernatant liquor, obtain the function Graphene colloidal sol of uniformity at last.The statistics analysis revealed, the number of plies is that function Graphene more than 2 layers and 2 layers accounts for 70% in the product, laterally mean sizes is 1000nm, has reduced by 50% than the median size of graphite oxide.
Claims (5)
1. peel off the mutual field device that graphite oxide is the function Graphene for one kind, it is characterized in that, this device comprises peels off still, hot cell assembly, power unit block, sound unit block and electric unit assembly, the described still of peeling off is arranged in the hot cell assembly, described power unit block harmony unit block is arranged to be peeled off in the still, and described electric unit assembly is arranged at hot cell assembly both sides.
2. a kind of mutual field device that graphite oxide is the function Graphene of peeling off according to claim 1 is characterized in that described power unit block is made up of driver and agitator, and agitator one end places to be peeled off in the still, and the other end connects driver.
3. a kind of mutual field device that graphite oxide is the function Graphene of peeling off according to claim 1, it is characterized in that, described sound unit block is made up of ultrasonic generator and transmitter, and ultrasonic generator connects transmitter, and an end of ultrasonic transducer places to be peeled off in the still.
4. a kind of mutual field device that graphite oxide is the function Graphene of peeling off according to claim 1, it is characterized in that, described electric unit assembly is made up of surge generator and electrode, and electrode is arranged on hot cell assembly both sides, and surge generator is arranged on the electrode outside.
5. a kind of mutual field device that graphite oxide is the function Graphene of peeling off according to claim 1 is characterized in that described hot cell assembly is the adjustable water tank of temperature, and temperature range is: 60-90 ℃.
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| Application Number | Priority Date | Filing Date | Title |
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| CN200920069942XU CN201458743U (en) | 2009-04-03 | 2009-04-03 | Interactive field device for stripping graphite oxide into functional graphene |
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| Application Number | Priority Date | Filing Date | Title |
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| CN200920069942XU CN201458743U (en) | 2009-04-03 | 2009-04-03 | Interactive field device for stripping graphite oxide into functional graphene |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102167313A (en) * | 2011-04-25 | 2011-08-31 | 同济大学 | Method for preparing graphene oxide through peeling in electric field |
| CN103172058A (en) * | 2013-03-11 | 2013-06-26 | 同济大学 | Method for preparing three-dimensional netty graphene |
| CN103204493A (en) * | 2012-01-12 | 2013-07-17 | 中国科学院微电子研究所 | Preparation method of graphene wafer |
| CN103350554A (en) * | 2013-06-17 | 2013-10-16 | 南京科孚纳米技术有限公司 | Method for shearing stripping of two-dimensional layered material by convection gas |
| CN104760952A (en) * | 2015-04-10 | 2015-07-08 | 杭州成功超声设备有限公司 | Production device for preparing graphene by virtue of ultrasonic assistance |
-
2009
- 2009-04-03 CN CN200920069942XU patent/CN201458743U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102167313A (en) * | 2011-04-25 | 2011-08-31 | 同济大学 | Method for preparing graphene oxide through peeling in electric field |
| CN102167313B (en) * | 2011-04-25 | 2012-08-22 | 同济大学 | Method for preparing graphene oxide through peeling in electric field |
| CN103204493A (en) * | 2012-01-12 | 2013-07-17 | 中国科学院微电子研究所 | Preparation method of graphene wafer |
| CN103204493B (en) * | 2012-01-12 | 2015-09-30 | 中国科学院微电子研究所 | The preparation method of graphene wafer |
| CN103172058A (en) * | 2013-03-11 | 2013-06-26 | 同济大学 | Method for preparing three-dimensional netty graphene |
| CN103172058B (en) * | 2013-03-11 | 2015-01-14 | 同济大学 | Method for preparing three-dimensional netty graphene |
| CN103350554A (en) * | 2013-06-17 | 2013-10-16 | 南京科孚纳米技术有限公司 | Method for shearing stripping of two-dimensional layered material by convection gas |
| CN103350554B (en) * | 2013-06-17 | 2015-11-04 | 南京科孚纳米技术有限公司 | A kind of convection gas shears the method peeling off two-dimensional layer material |
| CN104760952A (en) * | 2015-04-10 | 2015-07-08 | 杭州成功超声设备有限公司 | Production device for preparing graphene by virtue of ultrasonic assistance |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100512 Termination date: 20130403 |