CN106335896A - Method for preparing graphene through carbon dioxide discharge reduction - Google Patents
Method for preparing graphene through carbon dioxide discharge reduction Download PDFInfo
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- CN106335896A CN106335896A CN201610761550.4A CN201610761550A CN106335896A CN 106335896 A CN106335896 A CN 106335896A CN 201610761550 A CN201610761550 A CN 201610761550A CN 106335896 A CN106335896 A CN 106335896A
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- Prior art keywords
- carbon dioxide
- graphene
- hydrogen
- discharge
- reduction
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Abstract
The invention discloses a method for preparing graphene through carbon dioxide discharge reduction. Carbon dioxide and nitrogen are introduced into a closed reaction container, high-voltage electricity is introduced to be discharged to gas, and graphene is generated. The graphene has the advantages of being low in raw material cost, simple in process, few in defect, high in quality, large in area, low in price, capable of being produced on a large scale and the like.
Description
Technical field
The present invention relates to the preparation field of Graphene, specifically, it is related to one kind and stone is prepared by carbon dioxide electric discharge reduction
The method of black alkene.
Background technology
Before Graphene in 2015 finds, Graphene is material the thinnest, is also material the most tough, fracture strength
More taller than best steel 200 times.It has good elasticity again simultaneously, and stretch range can reach the 20% of own dimensions.It is
At present nature is the thinnest, intensity highest material, if making hammock with the Graphene of 1 square metre of one piece of area, weight itself
Just one one kilogram of cat can be born less than 1 milligram.Graphene most potential application at present is the succedaneum becoming silicon, system
Make ultra micro transistor npn npn, for producing the supercomputer in future.Replace silicon, the speed of service of computer processor with Graphene
Will hundreds times soon.In addition, Graphene is almost fully transparent, only absorb 2.3% light.On the other hand, it is very fine and close,
Even the gas atom of minimum (hydrogen atom) also cannot penetrate.These features make it be highly suitable as transparent electron product
Raw material, such as transparent touch display screen, luminous plaque and solar panel.As the thinnest, maximum intensity having now been found that, lead
A kind of conductance hot property novel nano-material the strongest, Graphene is referred to as " dark fund ", is " king of new material ", scientist is even
Prophesy Graphene " will thoroughly change 21 century ".Very likely start a subversiveness new technique NPD projects leather have swepting the globe
Life.The production method of Graphene has mechanical stripping method, oxidation-reduction method, sic epitaxial growth method and chemical vapour deposition technique at present,
All existing defects are many, of poor quality, area is little, be unable to large-scale production, cost intensive the shortcomings of.
Content of the invention
It is an object of the invention to provide a kind of Graphene and preparation method thereof.Graphite should be prepared by carbon dioxide electric discharge reduction
The shortcoming that the method for alkene can solve current material and preparation method thereof.
In order to realize foregoing invention purpose, the invention provides a kind of side being prepared Graphene by carbon dioxide electric discharge reduction
Method, comprises the following steps:
(1) carbon dioxide, hydrogen are passed through airtight reaction vessel, the mol ratio of carbon dioxide and hydrogen is 1:1-3:1；
(2) there is electrode in reaction vessel, be passed through high-tension electricity and discharged, carbon dioxide and hydrogen are shocked by electricity, generate stone
Black alkene.
As preferred, the purity of described carbon dioxide is higher than 80%.
As preferred, the purity of described hydrogen is higher than 80%.
As preferred, described discharge voltage is higher than 10kv.
As preferred, described discharge mode is plasma discharge, spark discharge, electron beam discharge, impulse electric corona
One of electric discharge.
Compared with prior art, the beverage of the present invention has the advantage that
1. the cost of raw material is cheap, process is simple；
2. the Graphene defect that carbon dioxide is obtained by hydrogen reducing under extreme conditions is few, quality is high, area is big, price simultaneously
Cheap；
3. this preparation method can achieve large-scale production.
Specific embodiment
In order that the objects, technical solutions and advantages of the present invention become more apparent, with reference to embodiments, to the present invention
It is further elaborated.It should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not used to
Limit the present invention.
Weight portion hereinafter can represent the conventional unit dosage in this area, such as kilogram, gram etc. it is also possible to represent is
Each group divide between ratio, such as quality or weight than etc..
Below in conjunction with particular preferred embodiment, above-mentioned beverage is described in detail.Contained by beverage in following each embodiments
Component is selected all in the range of the species and content of beverage mentioned above.
Embodiment 1:
(1) 80% purity carbon dioxide, 80% purity hydrogen are passed through airtight reaction vessel, the mol ratio of carbon dioxide and hydrogen
For 1:1；
(2) there is electrode in reaction vessel, be passed through high-tension electricity 10kv and discharged, carbon dioxide and hydrogen are shocked by electricity, raw
Become Graphene.
Embodiment 2:
(1) 100% purity carbon dioxide, 100% purity hydrogen are passed through airtight reaction vessel, carbon dioxide and hydrogen mole
Than for 3:1；
(2) there is electrode in reaction vessel, be passed through high-tension electricity 750kv and discharged, carbon dioxide and hydrogen are shocked by electricity, raw
Become Graphene.
Embodiment 3:
(1) 95% purity carbon dioxide, 95% purity hydrogen are passed through airtight reaction vessel, the mol ratio of carbon dioxide and hydrogen
For 2:1；
(2) there is electrode in reaction vessel, be passed through high-tension electricity 500kv and discharged, carbon dioxide and hydrogen are shocked by electricity, raw
Become Graphene.
Comparative example 1:
Mechanical stripping method prepares Graphene.
Comparative example 2:
Oxidation-reduction method prepares Graphene.
Contrast ratio 3:
Preparing graphene through chemical vapor deposition.
It is more than that the powdery paints that the embodiment of the present invention is provided is described in detail.Concrete reality used herein
Apply example the principle of the present invention and embodiment are set forth, the explanation of embodiment is only intended to help understand the side of the present invention
Method and its core concept, the foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all at this
Any modification, equivalent and improvement made within bright spirit and principle etc., should be included in protection scope of the present invention
Within.
The performance test table of table 1 Graphene
| Sample | Cost | Quality | Area | Industrialization |
| Embodiment 1 | Low | High | Greatly | Suitable industrialization |
| Embodiment 2 | Low | High | Greatly | Suitable industrialization |
| Embodiment 3 | Low | High | Greatly | Suitable industrialization |
| Comparative example 1 | Higher | Higher | Larger | Be not suitable for industrialization |
| Comparative example 2 | Low | Low | Little | Suitable industrialization |
| Comparative example 3 | Higher | Higher | Larger | Industrialization degree is general |
Claims (5)
1. a kind of method preparing Graphene by carbon dioxide electric discharge reduction, comprises the following steps:
(1) carbon dioxide, hydrogen are passed through airtight reaction vessel；
(2) there is electrode in reaction vessel, be passed through high-tension electricity and discharged, carbon dioxide and hydrogen are shocked by electricity, generate stone
Black alkene.
2. a kind of as claimed in claim 1 the method for Graphene is prepared it is characterised in that described by carbon dioxide electric discharge reduction
The mol ratio of carbon dioxide and hydrogen is 1:1-3:1
A kind of as claimed in claim 2 the method for Graphene is prepared it is characterised in that described two by carbon dioxide reduction of discharging
The purity of carbonoxide is higher than 80%.
3. a kind of as claimed in claim 2 the method for Graphene is prepared it is characterised in that described by carbon dioxide electric discharge reduction
The purity of hydrogen is higher than 80%.
4. a kind of as claimed in claim 1 the method for Graphene is prepared it is characterised in that described by carbon dioxide electric discharge reduction
Discharge voltage is higher than 10kv.
5. a kind of as claimed in claim 1 the method for Graphene is prepared it is characterised in that described by carbon dioxide electric discharge reduction
Discharge mode is one of plasma discharge, spark discharge, electron beam discharge, corona discharge pulse.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610761550.4A CN106335896A (en) | 2016-08-30 | 2016-08-30 | Method for preparing graphene through carbon dioxide discharge reduction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610761550.4A CN106335896A (en) | 2016-08-30 | 2016-08-30 | Method for preparing graphene through carbon dioxide discharge reduction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106335896A true CN106335896A (en) | 2017-01-18 |
Family
ID=57822755
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610761550.4A Withdrawn CN106335896A (en) | 2016-08-30 | 2016-08-30 | Method for preparing graphene through carbon dioxide discharge reduction |
Country Status (1)
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104163418A (en) * | 2013-05-16 | 2014-11-26 | 中山大学 | Method for realizing controllable orientated growth of graphene and graphene prepared by using method |
| CN104773725A (en) * | 2015-04-09 | 2015-07-15 | 厦门大学 | Method for preparing graphene by using low-temperature plasmas |
-
2016
- 2016-08-30 CN CN201610761550.4A patent/CN106335896A/en not_active Withdrawn
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104163418A (en) * | 2013-05-16 | 2014-11-26 | 中山大学 | Method for realizing controllable orientated growth of graphene and graphene prepared by using method |
| CN104773725A (en) * | 2015-04-09 | 2015-07-15 | 厦门大学 | Method for preparing graphene by using low-temperature plasmas |
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Application publication date: 20170118 |
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| WW01 | Invention patent application withdrawn after publication |