CN106744835A - A kind of method that utilization maize straw prepares Graphene - Google Patents
A kind of method that utilization maize straw prepares Graphene Download PDFInfo
- Publication number
- CN106744835A CN106744835A CN201611083907.4A CN201611083907A CN106744835A CN 106744835 A CN106744835 A CN 106744835A CN 201611083907 A CN201611083907 A CN 201611083907A CN 106744835 A CN106744835 A CN 106744835A
- Authority
- CN
- China
- Prior art keywords
- maize straw
- graphene
- utilization
- insulation
- prepares graphene
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B2204/00—Structure or properties of graphene
- C01B2204/20—Graphene characterized by its properties
- C01B2204/32—Size or surface area
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/16—Pore diameter
Abstract
A kind of method that utilization maize straw prepares Graphene.Mainly include the following steps that：Automatic machine being decored using maize straw defoliation to pre-process maize straw, removing disleaf and straw core, the maize straw for being pre-processed crush to stalk；The maize straw of crushing and chemical solvent are mixed, centre addition catalyst；Above-mentioned treated maize straw is carried out into high-temperature heating, and after obtain Graphene through ultra high pressure treatment.The preparation method of the Graphene that the present invention is provided is environmentally safe, and with maize straw as carbon source, the cost of raw material of carbon source is low and is readily available, and solves existing carbon source high cost, is unfavorable for the shortcoming of heavy industrialization.
Description
Technical field：
The invention belongs to carbon material technical field, more particularly to a kind of method that utilization maize straw prepares Graphene.
Background technology
Graphene（Graphene）It is a kind of new material of the individual layer laminated structure being made up of carbon atom.It is a kind of former by carbon
Son is with the flat film that sp2 hybridized orbits composition hexangle type is in honeycomb lattice, the two-dimensional material of only one of which carbon atom thickness.Stone
Black alkene is considered as always hypothetical structure, it is impossible to independent stable existence, until, Univ Manchester UK's physics in 2004
Scholar An Delie et al. successfully isolates Graphene from graphite in an experiment, and confirms that it can be with individualism, two people
Because " in the initiative experiment of two-dimensional graphene material " serves as reasons, Nobel Prize in physics in 2010 is obtained jointly
It is but also most hard nano material that Graphene is currently world most thin, and it is almost fully transparent, only absorbs 2.3%
Light；Thermal conductivity factor is up to 5300W/mK, and higher than CNT and diamond, its electron mobility exceedes nano-sized carbon under normal temperature
Pipe or silicon crystal, and resistivity about 10-6Ω cm, it is lower than copper or silver, it is the minimum material of current world resistivity.Because
Its resistivity is extremely low, and the speed of electron transfer is exceedingly fast, therefore is expected to can be used to develop thinner, conductive speed new faster
Generation electronic component or transistor.Because Graphene is substantially a kind of transparent, good conductor, it also is adapted for transparent for manufacturing
Touch Screen, even tabula rasa, solar cell.
At present, grapheme material powder, such as mechanical stripping method, oxidation-reduction method, crystalline substance can be prepared using various methods
External epitaxial growth, chemical vapour deposition technique, organic synthesis method and stripping CNT method etc..In these methods, machinery stripping
It is very low from method and epitaxial growth method preparation efficiency, it is difficult to meet large-scale needs.Although chemical vapour deposition technique can be obtained
The continuous graphene film of large scale, but suitable for micro-nano electronic device or transparent conductive film, can not but meet energy storage material
And the extensive demand in functional composite material field.Oxidation-reduction method prepares grapheme material powder and is relatively easy to realize, is system
The common method of standby grapheme material powder, but the method uses a large amount of strong acid and oxidation during Graphene is prepared
Agent, it is serious to graphenic surface destruction, and environment is easily polluted, therefore be not suitable for the Graphene preparation of extensive industrialization.
The content of the invention
The preparation of the Graphene provided the invention provides a kind of method that utilization maize straw prepares Graphene, the present invention
Method is with maize straw as raw material, and preparation method environmental pollution is smaller, is conducive to the industrialization development of Graphene.
The invention provides a kind of method that utilization maize straw prepares Graphene, comprise the following steps：
（1）Automatic machine being decored using maize straw defoliation to pre-process maize straw, removing disleaf and straw core, stalk is entered
Row crushes the maize straw for being pre-processed；
（2）The maize straw of crushing and chemical solvent are mixed, centre addition catalyst；
（3）Above-mentioned treated maize straw is carried out into high-temperature heating, and after obtain Graphene through ultra high pressure treatment.
The step（2）In chemical solvent be any proportioning of the one or two kinds of solvent in nitric acid or sulfuric acid.
The step（2）In catalyst be silicic acid, its addition is with the mass ratio of maize straw：（0.001-
0.01）：1.
The step（3）In high-temperature heating program be：100 DEG C of insulation 1h；250 DEG C of insulation 1-2h；550 DEG C of insulation 2-
4h；850 DEG C of insulation 16-20h.
The step（3）In ultra-high pressure condition be：Pressure 400-600 MPa, dwell time 25-60 min, pressurization temperature
50-85 DEG C of degree.
The present invention has advantages below：
（1）Preparing Graphene characteristic according to the preparation method described in this patent scheme is：The specific surface area of Graphene is
1800~3000cm3/g；The aperture of Graphene is 1~18nm；
（2）This patent prepares Graphene by raw material of maize straw so that maize straw is preferably processed, and greatly improves
The added value of maize straw, contributes to the fast lifting of China's rural economy.
Specific embodiment
The present embodiment is further illustrating rather than the limitation to this patent to this patent.
Embodiment 1
（1）Automatic machine being decored using maize straw defoliation to pre-process maize straw, removing disleaf and straw core, stalk is entered
Row crushes the maize straw for being pre-processed；
（2）The maize straw of crushing and chemical solvent are mixed, centre addition catalyst；
（3）Above-mentioned treated maize straw is carried out into high-temperature heating, and after obtain Graphene through ultra high pressure treatment.
The step（2）In chemical solvent be nitric acid.
The step（2）In catalyst be silicic acid, its addition is with the mass ratio of maize straw： 0.001：1.
The step（3）In high-temperature heating program be：100 DEG C of insulation 1h；250 DEG C of insulation 1h；550 DEG C of insulation 2h；850
DEG C insulation 16h.
The step（3）In ultra-high pressure condition be：The MPa of pressure 400, the min of dwell time 25,50 DEG C of pressed temperature.
Embodiment 2
（1）Automatic machine being decored using maize straw defoliation to pre-process maize straw, removing disleaf and straw core, stalk is entered
Row crushes the maize straw for being pre-processed；
（2）The maize straw of crushing and chemical solvent are mixed, centre addition catalyst；
（3）Above-mentioned treated maize straw is carried out into high-temperature heating, and after obtain Graphene through ultra high pressure treatment.
The step（2）In chemical solvent be sulfuric acid.
The step（2）In catalyst be silicic acid, its addition is with the mass ratio of maize straw：0.005：1.
The step（3）In high-temperature heating program be：100 DEG C of insulation 1h；250 DEG C of insulation 2h；550 DEG C of insulation 4h；850
DEG C insulation 20h.
The step（3）In ultra-high pressure condition be：The MPa of pressure 500, the min of dwell time 40,65 DEG C of pressed temperature.
Embodiment 3
（1）Automatic machine being decored using maize straw defoliation to pre-process maize straw, removing disleaf and straw core, stalk is entered
Row crushes the maize straw for being pre-processed；
（2）The maize straw of crushing and chemical solvent are mixed, centre addition catalyst；
（3）Above-mentioned treated maize straw is carried out into high-temperature heating, and after obtain Graphene through ultra high pressure treatment.
The step（2）In chemical solvent be the mixed liquor of nitric acid and sulfuric acid, its mass ratio is 1:1.
The step（2）In catalyst be silicic acid, its addition is with the mass ratio of maize straw：0.002：1.
The step（3）In high-temperature heating program be：100 DEG C of insulation 1h；250 DEG C of insulation 1.5h；550 DEG C of insulation 3h；
850 DEG C of insulation 18h.
The step（3）In ultra-high pressure condition be：The MPa of pressure 600, the min of dwell time 60,85 DEG C of pressed temperature.
Claims (5)
1. a kind of method that utilization maize straw prepares Graphene, comprises the following steps：
（1）Automatic machine being decored using maize straw defoliation to pre-process maize straw, removing disleaf and straw core, stalk is entered
Row crushes the maize straw for being pre-processed；
（2）The maize straw of crushing and chemical solvent are mixed, centre addition catalyst；
（3）Above-mentioned treated maize straw is carried out into high-temperature heating, and after obtain Graphene through ultra high pressure treatment.
2. the method that a kind of utilization maize straw according to claim 1 prepares Graphene, it is characterised in that the step
（2）In chemical solvent be any proportioning of the one or two kinds of solvent in nitric acid or sulfuric acid.
3. the method that a kind of utilization maize straw according to claim 1 prepares Graphene, it is characterised in that the step
（2）In catalyst be silicic acid, its addition is with the mass ratio of maize straw：（0.001-0.01）：1.
4. the method that a kind of utilization maize straw according to claim 1 prepares Graphene, it is characterised in that the step
（3）In high-temperature heating program be：100 DEG C of insulation 1h；250 DEG C of insulation 1-2h；550 DEG C of insulation 2-4h；850 DEG C of insulation 16-
20h。
5. the method that a kind of utilization maize straw according to claim 1 prepares Graphene, it is characterised in that the step
Suddenly（3）In ultra-high pressure condition be：Pressure 400-600 MPa, dwell time 25-60 min, 50-85 DEG C of pressed temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611083907.4A CN106744835A (en) | 2016-11-30 | 2016-11-30 | A kind of method that utilization maize straw prepares Graphene |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611083907.4A CN106744835A (en) | 2016-11-30 | 2016-11-30 | A kind of method that utilization maize straw prepares Graphene |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106744835A true CN106744835A (en) | 2017-05-31 |
Family
ID=58913543
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611083907.4A Pending CN106744835A (en) | 2016-11-30 | 2016-11-30 | A kind of method that utilization maize straw prepares Graphene |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106744835A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110668430A (en) * | 2019-11-12 | 2020-01-10 | 沈阳中科腐蚀控制工程技术中心 | Method for preparing graphene by fermenting graphene with graphene |
| CN111439745A (en) * | 2020-05-10 | 2020-07-24 | 西南石油大学 | Preparation method of single-layer or few-layer biomass graphene |
| CN111517311A (en) * | 2020-05-10 | 2020-08-11 | 西南石油大学 | Preparation method of large-size biomass graphene and application of large-size biomass graphene in energy storage device |
| CN111533116A (en) * | 2020-05-10 | 2020-08-14 | 西南石油大学 | Preparation method of biomass graphene for fan blade |
| CN111533111A (en) * | 2020-05-10 | 2020-08-14 | 西南石油大学 | Preparation method of biomass graphene hydrogen storage material |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104016341A (en) * | 2014-07-01 | 2014-09-03 | 济南圣泉集团股份有限公司 | Preparation method of porous graphene |
| CN104386684A (en) * | 2014-12-16 | 2015-03-04 | 中国科学院宁波材料技术与工程研究所 | Preparation method of graphene and graphene |
-
2016
- 2016-11-30 CN CN201611083907.4A patent/CN106744835A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104016341A (en) * | 2014-07-01 | 2014-09-03 | 济南圣泉集团股份有限公司 | Preparation method of porous graphene |
| CN104386684A (en) * | 2014-12-16 | 2015-03-04 | 中国科学院宁波材料技术与工程研究所 | Preparation method of graphene and graphene |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110668430A (en) * | 2019-11-12 | 2020-01-10 | 沈阳中科腐蚀控制工程技术中心 | Method for preparing graphene by fermenting graphene with graphene |
| CN111439745A (en) * | 2020-05-10 | 2020-07-24 | 西南石油大学 | Preparation method of single-layer or few-layer biomass graphene |
| CN111517311A (en) * | 2020-05-10 | 2020-08-11 | 西南石油大学 | Preparation method of large-size biomass graphene and application of large-size biomass graphene in energy storage device |
| CN111533116A (en) * | 2020-05-10 | 2020-08-14 | 西南石油大学 | Preparation method of biomass graphene for fan blade |
| CN111533111A (en) * | 2020-05-10 | 2020-08-14 | 西南石油大学 | Preparation method of biomass graphene hydrogen storage material |
| CN111517311B (en) * | 2020-05-10 | 2021-12-07 | 西南石油大学 | Preparation method of large-size biomass graphene and application of large-size biomass graphene in energy storage device |
| CN111533111B (en) * | 2020-05-10 | 2021-12-07 | 西南石油大学 | Preparation method of biomass graphene hydrogen storage material |
| CN111439745B (en) * | 2020-05-10 | 2021-12-07 | 西南石油大学 | Preparation method of single-layer or few-layer biomass graphene |
| CN111533116B (en) * | 2020-05-10 | 2021-12-14 | 西南石油大学 | Preparation method of biomass graphene for fan blade |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106744835A (en) | A kind of method that utilization maize straw prepares Graphene | |
| CN104724699B (en) | Method for preparing biomass graphene employing cellulose as raw material | |
| CN103219066B (en) | Flexible conductive film that two-dimensional graphene is compound with one-dimensional nano line and preparation method thereof | |
| CN102757038B (en) | Method for preparing graphene | |
| CN102745678B (en) | Method for preparing nitrogen-doped graphene by utilizing plasma sputtering | |
| CN103950923A (en) | New method for preparing high-quality graphene | |
| CN106744841B (en) | Preparation method of three-dimensional porous graphene film constructed by single-layer graphene | |
| CN102616768A (en) | Graphene nanoribbon manufacturing method | |
| CN102992314B (en) | Method for preparing graphene | |
| CN104176727A (en) | Graphene suspended solution and making method thereof | |
| CN104174422A (en) | High nitrogen doped graphene and fullerene-like molybdenum selenide hollow-ball nanocomposite and preparation method thereof | |
| CN103523770B (en) | A kind of preparation method of Graphene | |
| CN103553030A (en) | Preparation method of few-layer graphene | |
| WO2015081663A1 (en) | Method for preparing aza graphene and nanometer metal graphene by using solid phase cracking method | |
| CN106276881B (en) | A kind of preparation method of graphene | |
| CN110028057A (en) | A kind of graphene slurry and preparation method thereof with Investigation of stabilized dispersion of nano | |
| CN104163420A (en) | Silver-doped graphene composite paper and preparation method | |
| CN102786045A (en) | Method for preparing oxidized graphene | |
| CN104944392A (en) | Mass preparation method of graphite-phase carbon nitride nanosheets | |
| CN102001651A (en) | Method for preparing graphene based on hydroxylamine reduction | |
| CN104150470A (en) | Metal-solution reduction method for preparing graphene | |
| CN103641130A (en) | Method for preparing fluorinated boron nitride in fluorinating and stripping manners | |
| CN103896259A (en) | Preparation method for graphene | |
| CN106496712A (en) | A kind of reaction in-situ peels off the method that expanded graphite prepares rubber nano composite material | |
| CN102757035A (en) | Preparation method of graphene |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170531 |
|
| WD01 | Invention patent application deemed withdrawn after publication |