CN102887500A - Method for preparing graphene with carbonization surfactant - Google Patents
Method for preparing graphene with carbonization surfactant Download PDFInfo
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- CN102887500A CN102887500A CN2011102041873A CN201110204187A CN102887500A CN 102887500 A CN102887500 A CN 102887500A CN 2011102041873 A CN2011102041873 A CN 2011102041873A CN 201110204187 A CN201110204187 A CN 201110204187A CN 102887500 A CN102887500 A CN 102887500A
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- surfactant
- benzene
- carbonization
- sulfuric acid
- graphene
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Abstract
The current graphene synthesis methods mainly include a mechanical method and a chemical method. According to these methods, large blocks of graphene cannot be manufactured. Specific to the defects in the prior art, the technical scheme is that: a method for preparing graphene with a carbonization surfactant disclosed by the invention comprises the following steps of: preparing: mixing an aqueous solution (such as sulfuric acid) and a water-insoluble liquid (such as benzene) of which the density is lower than that of water together, and standing for delaminating; injecting a surfactant (such as oleic acid) of which the hydrophilic group contains carbon into a mixed solution to form a layer of monomolecular film on the interface of sulfuric acid and benzene, soaking the hydrophilic group of the surfactant into a sulfuric acid aqueous solution, and soaking a hydrophobic group into benzene; and carbonizing the surfactant to form a single carbon atom layer.
Description
Technical field
That patent of the present invention relates to is a kind of preparation method of Graphene.
Background technology
At present, the synthetic method of Graphene mainly contains two kinds: mechanical means and chemical process.Mechanical means comprises the method for micromechanics partition method, epitaxy method and heating SiC; Chemical process is chemical reduction method and chemical cleavage method.These methods all can not be made relatively large Graphene at present.
Summary of the invention
The aqueous solution (such as sulfuric acid) and the liquid that is insoluble in water (such as benzene) less than water-mass density are mixed standing demix.The tensio-active agent (such as oleic acid) that injects the hydrophilic group carbon containing in mixed solution will form one deck monomolecular film at the interface of sulfuric acid and benzene, and the hydrophilic group of tensio-active agent is immersed in the aqueous sulfuric acid, and hydrophobic group is immersed in the benzene.Then roasting by electricity or use the dewatering agent Surfactant such as the vitriol oil to carry out carbonization, form the monolayer carbon atomic shell.By this method, the relatively large Graphene of preparation.
Embodiment
In order to solve defective of the prior art, technical scheme is as follows: prepare: the aqueous solution (such as sulfuric acid) and the liquid that is insoluble in water (such as benzene) less than water-mass density are mixed standing demix.The tensio-active agent (such as oleic acid) that injects the hydrophilic group carbon containing in mixed solution will form one deck monomolecular film at the interface of sulfuric acid and benzene, and the hydrophilic group of tensio-active agent is immersed in the aqueous sulfuric acid, and hydrophobic group is immersed in the benzene.Then Surfactant carries out carbonization, forms the monolayer carbon atomic shell.
The carbonization specific practice:
1 makes the aqueous solution be converted into reposefully dewatering agent (as making the dilute sulphuric acid that does not have dehydration property become the dewatering agent vitriol oil by modes such as electrolysis) Surfactant hydrophilic group by operations such as adding novel substance or electrolysis carries out carbonization.
2 by other modes such as high voltage electric, make reposefully carbonization of tensio-active agent.The liquid (normally organic solvent) that is insoluble in water owing to aqueous conductive is non-conductive, so as long as control is proper, only have the hydrophilic group that immerses in the aqueous solution just can be carbonized.
The chemical bond of hydrophilic group disconnects after the carbonization, and tensio-active agent no longer is close to the aqueous solution and is got back in the liquid that is insoluble in water with the interface of the liquid that is insoluble in water, no longer enters carbonization in the aqueous solution.What prevent same molecule continuously ceaselessly carbonization and causing generates is the graphite of multilayered structure rather than the Graphene of individual layer.
Description of drawings
Legend:
1. the benzene liquid of water (or be insoluble in)
2. sulfuric acid (or aqueous solution)
3. the unimolecular film (or film surface promoting agent film) that forms of oleic acid
4. beaker.
Claims (1)
1. the carburising surface promoting agent method for preparing Graphene is characterized in that, the method with the dewatering agent carbonization such as the vitriol oil or electric shock carburising surface promoting agent makes the monofilm carbonization that swims in liquid level prepare Graphene.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102041873A CN102887500A (en) | 2011-07-20 | 2011-07-20 | Method for preparing graphene with carbonization surfactant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102041873A CN102887500A (en) | 2011-07-20 | 2011-07-20 | Method for preparing graphene with carbonization surfactant |
Publications (1)
| Publication Number | Publication Date |
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| CN102887500A true CN102887500A (en) | 2013-01-23 |
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| CN2011102041873A Pending CN102887500A (en) | 2011-07-20 | 2011-07-20 | Method for preparing graphene with carbonization surfactant |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1767234A (en) * | 2005-09-12 | 2006-05-03 | 中国科学院上海硅酸盐研究所 | The method for preparing silicon/carbon composition lithium ion battery cathode material under a kind of room temperature |
| CN101835609A (en) * | 2007-09-10 | 2010-09-15 | 三星电子株式会社 | Graphene sheet and process of preparing the same |
| CN102020271A (en) * | 2009-09-21 | 2011-04-20 | 三星泰科威株式会社 | Method of manufacturing graphene and graphene manufactured by the method |
| US20110171427A1 (en) * | 2010-01-14 | 2011-07-14 | Samsung Techwin Co., Ltd. | Method of manufacturing deformation-capable graphene sheet, deformation-capable graphene sheet, and device using the same |
-
2011
- 2011-07-20 CN CN2011102041873A patent/CN102887500A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1767234A (en) * | 2005-09-12 | 2006-05-03 | 中国科学院上海硅酸盐研究所 | The method for preparing silicon/carbon composition lithium ion battery cathode material under a kind of room temperature |
| CN101835609A (en) * | 2007-09-10 | 2010-09-15 | 三星电子株式会社 | Graphene sheet and process of preparing the same |
| CN102020271A (en) * | 2009-09-21 | 2011-04-20 | 三星泰科威株式会社 | Method of manufacturing graphene and graphene manufactured by the method |
| US20110171427A1 (en) * | 2010-01-14 | 2011-07-14 | Samsung Techwin Co., Ltd. | Method of manufacturing deformation-capable graphene sheet, deformation-capable graphene sheet, and device using the same |
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Application publication date: 20130123 |