CN110194451A - There is grapheme material and its preparation method and the application of the macromolecule covalent modification of donor and acceptor groups simultaneously - Google Patents
There is grapheme material and its preparation method and the application of the macromolecule covalent modification of donor and acceptor groups simultaneously Download PDFInfo
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- CN110194451A CN110194451A CN201910406974.2A CN201910406974A CN110194451A CN 110194451 A CN110194451 A CN 110194451A CN 201910406974 A CN201910406974 A CN 201910406974A CN 110194451 A CN110194451 A CN 110194451A
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- 229920002521 macromolecule Polymers 0.000 title claims abstract description 46
- 239000000463 material Substances 0.000 title claims abstract description 31
- 238000002360 preparation method Methods 0.000 title claims abstract description 22
- 238000012986 modification Methods 0.000 title claims abstract description 20
- 230000004048 modification Effects 0.000 title claims abstract description 20
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 12
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 claims description 12
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 claims description 12
- LPXPTNMVRIOKMN-UHFFFAOYSA-M sodium nitrite Chemical compound [Na+].[O-]N=O LPXPTNMVRIOKMN-UHFFFAOYSA-M 0.000 claims description 12
- 239000002904 solvent Substances 0.000 claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 10
- 239000002131 composite material Substances 0.000 claims description 10
- LQNUZADURLCDLV-UHFFFAOYSA-N nitrobenzene Chemical compound [O-][N+](=O)C1=CC=CC=C1 LQNUZADURLCDLV-UHFFFAOYSA-N 0.000 claims description 10
- 229920003227 poly(N-vinyl carbazole) Polymers 0.000 claims description 10
- 229910021389 graphene Inorganic materials 0.000 claims description 9
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 6
- 229910052708 sodium Inorganic materials 0.000 claims description 6
- 239000011734 sodium Substances 0.000 claims description 6
- 235000010288 sodium nitrite Nutrition 0.000 claims description 6
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 claims description 6
- FYSNRJHAOHDILO-UHFFFAOYSA-N thionyl chloride Chemical compound ClS(Cl)=O FYSNRJHAOHDILO-UHFFFAOYSA-N 0.000 claims description 6
- 239000012954 diazonium Substances 0.000 claims description 5
- 150000001989 diazonium salts Chemical class 0.000 claims description 5
- TYMLOMAKGOJONV-UHFFFAOYSA-N 4-nitroaniline Chemical compound NC1=CC=C([N+]([O-])=O)C=C1 TYMLOMAKGOJONV-UHFFFAOYSA-N 0.000 claims description 4
- 230000003197 catalytic effect Effects 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims 2
- 238000000034 method Methods 0.000 abstract description 7
- 238000010276 construction Methods 0.000 abstract description 3
- 230000006870 function Effects 0.000 abstract 1
- 230000005540 biological transmission Effects 0.000 description 4
- 238000004528 spin coating Methods 0.000 description 4
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000005292 vacuum distillation Methods 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 125000000751 azo group Chemical group [*]N=N[*] 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- KKFHAJHLJHVUDM-UHFFFAOYSA-N n-vinylcarbazole Chemical compound C1=CC=C2N(C=C)C3=CC=CC=C3C2=C1 KKFHAJHLJHVUDM-UHFFFAOYSA-N 0.000 description 1
- 150000002829 nitrogen Chemical class 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000009832 plasma treatment Methods 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 150000003462 sulfoxides Chemical class 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000002604 ultrasonography Methods 0.000 description 1
- 238000001291 vacuum drying Methods 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
- C01B32/15—Nano-sized carbon materials
- C01B32/182—Graphene
- C01B32/194—After-treatment
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K10/00—Organic devices specially adapted for rectifying, amplifying, oscillating or switching; Organic capacitors or resistors having potential barriers
- H10K10/50—Bistable switching devices
-
- 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
- C01B2204/22—Electronic properties
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Nanotechnology (AREA)
- Inorganic Chemistry (AREA)
- Carbon And Carbon Compounds (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention belongs to technical field of information storage, and in particular to the grapheme material and its preparation method of macromolecule covalent modification that is a kind of while having donor and acceptor groups and application.The present invention also provides the methods based on grapheme material construction tri-state resistive memory.Device is by hearth electrode in the present invention, and active layer and vertex pole based on macromolecule modified grapheme material are constituted, and wherein macromolecule has donor and receptor two types group.When applying different voltages to the memory device, which shows three kinds of different resistance states, has store function.Since memory device shows as three kinds of Resistance states when applying voltage, relative to bistable device, the device storage density is from 2nIt has been increased to 3n, more information can be stored.The device is with good stability, and preparation process is simple, at low cost, can large area preparation.
Description
Technical field
The invention belongs to macromolecule modified graphene and its in information storage technology application field, and in particular to contain simultaneously
There is the high molecular preparation method of electron donor and electron acceptor, also relates to this macromolecule covalent modification graphene preparation
The method of composite material, and provide the method based on grapheme material construction tri-state resistive memory.
Background technique
With the rapid development of the industries such as internet, mobile network, GPS, meteorological monitoring, security monitoring, media, write letters in recent years
Breath amount an explosion occurred formula increases.As Amazon predecessor chief scientist AndreasWiegand says that " data are new stone
Oil ", if can data be excavated and be used in time, will generate huge benefit.And to realize the excavation and utilization to data,
It first has to timely store and process data.In the past few decades, electronic equipment develops along Moore's Law always, i.e. valence
In the case that lattice are constant, performance was doubled every 18-24 months.In order to realize what performance was doubled every 18-24 months
Target, semi-conductor industry integrate member usually by reducing the component size in silicon circuit come improving performance on one chip
The size of part cannot be small without limiting, and on the one hand when over-dimension reduces, can enhance the crosstalk distortion between circuit, another party
Face, preparation cost can also be sharply increased with the reduction of size.2 months 2016, Nature dispatch illustrated Moore's Law by face
Face the limit.Other than the Moore's Law limit, von Neumann bottleneck is also another problem faced at present.Storage circuit and place
Reason circuit is the basic unit of common electronic equipment such as computer, and the central processing unit (CPU) of computer and memory are at present
Separated, it completes instruction and needs the frequent transmission between CPU and memory, and the rate of data transmission at present is far below CPU's
Processing speed, this greatly reduces the overall treatment efficiency of electronic equipment.Developing high density storage is to improve the effect of storage equipment
The method of rate.It is 2 with memory capacitynMemory compare, tri-state electronic device memory capacity can reach 3n。
Summary of the invention
The purpose of the present invention is to provide the graphene materials of the macromolecule covalent modification simultaneously with donor and acceptor groups
Material and its preparation method and application.
The present invention also provides the macromolecules and preparation method thereof simultaneously with donor and acceptor groups.
The technical scheme is that
There is the grapheme material of the macromolecule covalent modification of donor and acceptor groups simultaneously, structural formula such as following formula is compound
Shown in material PVK-AZO-GO:
R is macromolecule PVK-AZO-NH2；X=y, about 89；Composite material PVK-AZO-GO.
According to the grapheme material of macromolecule covalent modification described while that there are donor and acceptor groups, further, institute
Stating while having the macromolecule of donor and acceptor groups is PVK-AZO-NH2, structural formula such as following formula:
Wherein x=y, about 89.
The present invention also provides the graphene materials of the macromolecule covalent modification simultaneously described in one kind with donor and acceptor groups
The preparation method of material, includes the following steps:
1) under condition of ice bath, 4- nitroaniline, concentrated hydrochloric acid and sodium nitrite are mixed with diazonium salt；Then at 4 DEG C
Under the conditions of, neopelex and PVK (polyvinylcarbazole, M is added to mixturen~48000, Mw/Mn~2) nitro
Benzole soln is reacted, and separating-purifying obtains product PVK-AZO-NO2；
Mn=4.8 × 104, PDI=2.3 macromolecule PVK-AZO-NO2
2) by PVK-AZO-NO2, vulcanized sodium is added to back flow reaction in tetrahydrofuran and water volume ratio 5:1 solution, separates
Purification obtains product PVK-AZO-NH2；
3) graphene oxide (GO) back flow reaction in the thionyl chloride solvent containing catalytic amount DMF is added to for 24 hours, to depressurize
Solvent is distilled off, then in N2Macromolecule PVK-AZO-NH is added in atmosphere2, triethylamine and solvent DMF reaction, separating-purifying
Obtain composite material PVK-AZO-GO.
Further, GO and macromolecule PVK-AZO-NH2Mass ratio is about 1:10.
Have the macromolecule of donor and acceptor groups for PVK-AZO-NH simultaneously the present invention also provides a kind of2, structural formula
Such as following formula:
Wherein x=y, about 89.
The present invention also provides the macromolecule PVK-AZO-NH simultaneously with donor and acceptor groups2Preparation method:
1) under condition of ice bath, 4- nitroaniline, concentrated hydrochloric acid and sodium nitrite are mixed with diazonium salt；Then at 4 DEG C
Under the conditions of, neopelex and PVK (polyvinylcarbazole, M is added to mixturen~48000, Mw/Mn~2) nitro
Benzole soln is reacted, and separating-purifying obtains product PVK-AZO-NO2；
Mn=4.8 × 104, PDI=2.3 macromolecule PVK-AZO-NO2
2) by PVK-AZO-NO2, vulcanized sodium is added to back flow reaction in tetrahydrofuran and water volume ratio 5:1 solution, separates
Purification obtains product PVK-AZO-NH2。
Macromolecule PVK-AZO-NH while of the present invention with donor and acceptor groups2, it is a kind of while has
The macromolecule of electron donor vinyl carbazole and electron acceptor azo group.Resulting composite material PVK-AZO-GO has excellent
Dissolubility, photoelectric property outstanding and charge transport quality make it have a wide range of applications in terms of photoelectric device.
The present invention also provides the graphene materials of the macromolecule covalent modification simultaneously described in one kind with donor and acceptor groups
Expect the application in terms of memory device.
The present invention also provides one kind to construct tri-state resistive memory based on grapheme material, and the grapheme material is upper
The grapheme material of the macromolecule covalent modification of donor and acceptor groups is stated while having, the device is by hearth electrode, based on height
The active layer of molecular modification grapheme material and vertex pole are constituted, and wherein macromolecule has donor and receptor two types base
Group.
Preferably, while there is the macromolecule PVK-AZO-NH of donor and acceptor groups2, preparation method includes as follows
Step:
1) under condition of ice bath, 2-3g4- nitroaniline, 10-20mL concentrated hydrochloric acid and 3-4g sodium nitrite are mixed with weight
Nitrogen salt.Then under the conditions of 2-4 DEG C, to mixture be added 4-5g neopelex and 6-10gPVK (polyvinylcarbazole,
Mn~48000, Mw/Mn~2) nitrobenzene solution is reacted, and separating-purifying obtains product PVK-AZO-NO2。
2) by 3-4gPVK-AZO-NO2, it is anti-that 5-7g vulcanized sodium is added to reflux in tetrahydrofuran and water volume ratio 5:1 solution
It answers, separating-purifying obtains product PVK-AZO-NH2。
Preferably, while there is the macromolecule PVK-AZO-NH of donor and acceptor groups2Covalent modification grapheme material
PVK-AZO-GO, preparation method include the following steps:
500-700mg graphene oxide (GO) is added to the 50-90mL protochloride containing 0.2-0.5mol catalytic amount DMF
Back flow reaction 24-36h in sulfoxide solvent, vacuum distillation removes solvent, then in N22-3g macromolecule PVK-AZO- is added in atmosphere
NH2, 1-2mol triethylamine and the reaction of 50-80mL solvent DMF, separating-purifying obtain composite material PVK-AZO-GO.
The beneficial technical effect of the present invention:
The grapheme material of macromolecule covalent modification with electron donor and electron acceptor while prepared by the present invention
Excellent dissolubility, photoelectric property outstanding are shown, and observes that there are charge transfer phenomenons in system.Pass through transmission electron microscope
Observe the pattern before and after graphene grafting polymer.It is non-volatile that device based on composite material PVK-AZO-GO shows as tri-state
Property storage performance, can write-once repeatedly read.On-off ratio between three kinds of resistance states is OFF:ON1:ON2=1:10:10000,
ON1 state and ON2 state turn-on threshold voltage are respectively -1.53V and -2.50V, and device performance can keep for a long time stable.All
Three kinds lead state (OFF, ON1 and ON2 state) and be able to maintain stabilization in long-time test and multiple pulses read test under conditions of,
Show that device has good stability.
Detailed description of the invention
Fig. 1 is the transmission electron microscope photo of GO prepared by the present invention and PVK-AZO-GO.
Fig. 2 is the current-voltage characteristic curve of Al/PVK-AZO-GO/ITO device prepared by the present invention.
Fig. 3 is the tri-state storage performance (b) of device architecture (a) and device based on PVK-AZO-GO.
Specific embodiment
Embodiment 1
The present invention provides while having the macromolecule PVK-AZO-NH of donor and acceptor groups2, preparation method includes such as
Lower step:
1) under condition of ice bath, 2g4- nitroaniline, 10mL concentrated hydrochloric acid and 3g sodium nitrite are mixed with diazonium salt.So
Afterwards under the conditions of 2 DEG C, 4g neopelex and 6gPVK (polyvinylcarbazole, M is added to mixturen~48000, Mw/Mn
~2) nitrobenzene solution is reacted, and separating-purifying obtains product PVK-AZO-NO2。
2) by 3gPVK-AZO-NO2, 5g vulcanized sodium is added to back flow reaction in tetrahydrofuran and water volume ratio 5:1 solution,
Separating-purifying obtains product PVK-AZO-NH2。
Embodiment 2
The present invention provides while having the macromolecule PVK-AZO-NH of donor and acceptor groups2Covalent modification grapheme material
PVK-AZO-GO, preparation method include the following steps:
500mg graphene oxide (GO) is added in the 50mL thionyl chloride solvent containing 0.2mol catalytic amount DMF and is returned
For 24 hours, vacuum distillation removes solvent, then in N for stream reaction22g macromolecule PVK-AZO-NH is added in atmosphere2, 1mol triethylamine and
The reaction of 50mL solvent DMF, separating-purifying obtain composite material PVK-AZO-GO.
Embodiment 3
A kind of preparation method based on grapheme material construction tri-state resistive memory, preparation method include following step
It is rapid:
Ito glass substrate uses deionized water, acetone and isopropanol carefully to rinse simultaneously ultrasound 15-30min cleaning respectively, so
Oxygen plasma treatment afterwards.50 microlitres of PVK-AZO-GO (10mg/mL) have been spin-coated on the clean surface ITO in advance, and spin coater turns
Speed is 800r/min, spin coating 10 seconds, then 2000r/min spin coating 40 seconds.And then, the device of spin coating preparation is in vacuum drying oven
80 DEG C are dried overnight.It is tested by step instrument, the film thickness of spin coating is about 100nm.In order to prepare complete sandwich device,
One layer of 120nm thickness, 0.4 × 0.4mm have been deposited by mask method on active layer film surface2Al electrode.
Claims (8)
1. having the grapheme material of the macromolecule covalent modification of donor and acceptor groups simultaneously, which is characterized in that its structural formula
As shown in following formula composite material PVK-AZO-GO:
R is macromolecule PVK-AZO-NH2；X=y, about 89；Composite material PVK-AZO-GO.
2. there is the grapheme material of the macromolecule covalent modification of donor and acceptor groups simultaneously according to claim 1,
Be characterized in that, it is described and meanwhile have the macromolecule of donor and acceptor groups be PVK-AZO-NH2, structural formula such as following formula:
Wherein x=y, about 89.
3. having the system of the grapheme material of the macromolecule covalent modification of donor and acceptor groups described in a kind of claim 1 simultaneously
Preparation Method, which comprises the steps of:
1) under condition of ice bath, 4- nitroaniline, concentrated hydrochloric acid and sodium nitrite are mixed with diazonium salt；Then in 4 DEG C of conditions
Under, neopelex and PVK (polyvinylcarbazole, M is added to mixturen~48000, Mw/Mn~2) nitrobenzene is molten
Liquid is reacted, and separating-purifying obtains product PVK-AZO-NO2；
Mn=4.8 × 104, PDI=2.3 macromolecule PVK-AZO-NO2
2) by PVK-AZO-NO2, vulcanized sodium is added to back flow reaction in tetrahydrofuran and water volume ratio 5:1 solution, and separating-purifying obtains
To product PVK-AZO-NH2；
3) graphene oxide (GO) back flow reaction in the thionyl chloride solvent containing catalytic amount DMF is added to for 24 hours, to be evaporated under reduced pressure
Solvent is removed, then in N2Macromolecule PVK-AZO-NH is added in atmosphere2, triethylamine and solvent DMF reaction, separating-purifying obtain
Composite material PVK-AZO-GO.
4. having the system of the grapheme material of the macromolecule covalent modification of donor and acceptor groups simultaneously according to claim 3
Preparation Method, which is characterized in that GO and macromolecule PVK-AZO-NH2Mass ratio is about 1:10.
5. a kind of macromolecule PVK-AZO-NH simultaneously with donor and acceptor groups2, structural formula such as following formula:
Wherein x=y, about 89.
6. having the macromolecule PVK-AZO-NH of donor and acceptor groups described in a kind of claim 5 simultaneously2Preparation method,
It is characterized in that, includes the following steps:
1) under condition of ice bath, 4- nitroaniline, concentrated hydrochloric acid and sodium nitrite are mixed with diazonium salt；Then in 4 DEG C of conditions
Under, neopelex and PVK (polyvinylcarbazole, M is added to mixturen~48000, Mw/Mn~2) nitrobenzene is molten
Liquid is reacted, and separating-purifying obtains product PVK-AZO-NO2；
Mn=4.8 × 104, PDI=2.3 macromolecule PVK-AZO-NO2
2) by PVK-AZO-NO2, vulcanized sodium is added to back flow reaction in tetrahydrofuran and water volume ratio 5:1 solution, and separating-purifying obtains
To product PVK-AZO-NH2。
7. simultaneously there is the grapheme material of the macromolecule covalent modification of donor and acceptor groups to deposit described in a kind of claim 1
Application in terms of memory device.
8. one kind constructs tri-state resistive memory based on grapheme material, the grapheme material is that claim 1-2 is any
There is the grapheme material of the macromolecule covalent modification of donor and acceptor groups simultaneously, the device is by hearth electrode, base described in
It is constituted in the active layer of macromolecule modified grapheme material and vertex pole, wherein macromolecule has donor and receptor two types
Group.
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Citations (3)
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|---|---|---|---|---|
| WO2011082064A1 (en) * | 2009-12-29 | 2011-07-07 | Montclair State University | Chelating agent modified graphene oxides, methods of preparation and use |
| CN103524825A (en) * | 2013-09-03 | 2014-01-22 | 东莞上海大学纳米技术研究院 | Preparation method and product of heat conduction macromolecule-graphene composite material |
| CN105148995A (en) * | 2015-09-23 | 2015-12-16 | 吉首大学 | Application of PAMAM carboxylated graphene Co nano-composite material in 4-nitroaniline degradation and catalysis |
-
2019
- 2019-05-15 CN CN201910406974.2A patent/CN110194451A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011082064A1 (en) * | 2009-12-29 | 2011-07-07 | Montclair State University | Chelating agent modified graphene oxides, methods of preparation and use |
| CN103025654A (en) * | 2009-12-29 | 2013-04-03 | 蒙特克莱尔州立大学 | Methods of preparation and use of chelating agent modified graphene oxides |
| CN103524825A (en) * | 2013-09-03 | 2014-01-22 | 东莞上海大学纳米技术研究院 | Preparation method and product of heat conduction macromolecule-graphene composite material |
| CN105148995A (en) * | 2015-09-23 | 2015-12-16 | 吉首大学 | Application of PAMAM carboxylated graphene Co nano-composite material in 4-nitroaniline degradation and catalysis |
Non-Patent Citations (1)
| Title |
|---|
| 张斌等: ""Covalent Modification of Graphene Oxide with Poly(N-vinylcarbazole) Containing Pendant Azobenzene Chromophores for Nonvolatile Ternary memories"", 《CARBON》 * |
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