CN105719837B - Preparation method of the amination graphene of photo-reduction as DSSC to electrode - Google Patents
Preparation method of the amination graphene of photo-reduction as DSSC to electrode Download PDFInfo
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 61
- 229910021389 graphene Inorganic materials 0.000 title claims abstract description 57
- 238000005576 amination reaction Methods 0.000 title claims abstract description 31
- 238000007540 photo-reduction reaction Methods 0.000 title claims abstract description 21
- 238000002360 preparation method Methods 0.000 title claims abstract description 16
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- 239000003054 catalyst Substances 0.000 claims description 8
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical group [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 claims description 6
- 229910052753 mercury Inorganic materials 0.000 claims description 6
- 238000005119 centrifugation Methods 0.000 claims description 5
- 239000013049 sediment Substances 0.000 claims description 5
- 229910052724 xenon Inorganic materials 0.000 claims description 5
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 claims description 5
- 238000000498 ball milling Methods 0.000 claims description 3
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- 239000007788 liquid Substances 0.000 claims description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract description 20
- 238000000034 method Methods 0.000 abstract description 15
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- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- 238000001228 spectrum Methods 0.000 description 4
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- 230000003197 catalytic effect Effects 0.000 description 3
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- 235000019441 ethanol Nutrition 0.000 description 3
- 125000000524 functional group Chemical group 0.000 description 3
- -1 graphite Alkene Chemical class 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 239000000376 reactant Substances 0.000 description 3
- 230000009257 reactivity Effects 0.000 description 3
- 230000008313 sensitization Effects 0.000 description 3
- 239000002002 slurry Substances 0.000 description 3
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N titanium dioxide Inorganic materials O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 2
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 2
- 239000003638 chemical reducing agent Substances 0.000 description 2
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- NWZSZGALRFJKBT-KNIFDHDWSA-N (2s)-2,6-diaminohexanoic acid;(2s)-2-hydroxybutanedioic acid Chemical compound OC(=O)[C@@H](O)CC(O)=O.NCCCC[C@H](N)C(O)=O NWZSZGALRFJKBT-KNIFDHDWSA-N 0.000 description 1
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 description 1
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- 241000446313 Lamella Species 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 1
- 238000002441 X-ray diffraction Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- DLGYNVMUCSTYDQ-UHFFFAOYSA-N azane;pyridine Chemical compound N.C1=CC=NC=C1 DLGYNVMUCSTYDQ-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
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- IKDUDTNKRLTJSI-UHFFFAOYSA-N hydrazine monohydrate Substances O.NN IKDUDTNKRLTJSI-UHFFFAOYSA-N 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 229910052740 iodine Inorganic materials 0.000 description 1
- 239000011630 iodine Substances 0.000 description 1
- 239000011244 liquid electrolyte Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000001755 magnetron sputter deposition Methods 0.000 description 1
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- 238000012986 modification Methods 0.000 description 1
- 239000002086 nanomaterial Substances 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- 230000000269 nucleophilic effect Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000033116 oxidation-reduction process Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 230000005622 photoelectricity Effects 0.000 description 1
- 239000002798 polar solvent Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000012286 potassium permanganate Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- JUJWROOIHBZHMG-UHFFFAOYSA-N pyridine Substances C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 description 1
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 description 1
- 150000003233 pyrroles Chemical class 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
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- 238000003756 stirring Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 230000010148 water-pollination Effects 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/542—Dye sensitized solar cells
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Hybrid Cells (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Carbon And Carbon Compounds (AREA)
- Inert Electrodes (AREA)
Abstract
Preparation method the invention discloses the amination graphene of photo-reduction as DSSC to electrode.By the aqueous solution ozone oxidation of graphene oxide, vacuum drying；Solvent and concentrated ammonia liquor are added into the vial of the graphene oxide sheet containing ozone oxidation, 0.5~2h of ultrasonic disperse, this open glass bottle is transferred in the polytetrafluoroethyllining lining containing concentrated ammonia liquor, 10~18h is reacted in autoclave, separates, be dried to obtain amination graphene；Dissolved, scratched on electro-conductive glass with isopropanol, illumination.The preparation method technique is simple, mild condition, energy consumption is low, without high temperature cabonization process, and nitrogen content is higher, electric conductivity is fine, and the electricity conversion for being assembled into DSSC is higher, substantially it is suitable with the electricity conversion of Pt electrodes, it is a kind of alternative materials of very promising DSSC to electrode.
Description
Technical field
Preparation method the present invention relates to the amination graphene of photo-reduction as DSSC to electrode.
Background technology
21 century, energy problem are a great problems for hindering human civilization progress, and solar energy is inexhaustible, and
And cleaning, environmentally friendly, renewable turn into study hotspot.How solar energy is adequately and reasonably utilized, it is short to turn into the solution energy
The effective way for the problem of lacking.DSSC (DSSC), spectral response range is wider, and technique is simple, cost is relatively low,
It is environment-friendly, have a extensive future.DSSC's is notable to the performance impact of whole battery to electrode material, what current tradition used
Based on Pt nano materials to electrode with its excellent electro catalytic activity, keep the record of highest electricity conversion.But its
Involve great expense, reserves are limited, are not suitable for long-term large-scale use, in addition, Pt is easily rotten by the oxidation-reduction pair in electrolyte
Erosion.It is therefore desirable to find replacement Pt elctro-catalyst.Graphene has high specific surface area and superficial catalytic activation, but graphite
Alkene is neither hydrophilic nor oleophylic, is easily reunited due to model ylid bloom action power, and what the inertia that chemically reacts in addition limited graphene should
With, can be by being modified to graphenic surface, increase active gene, raising hydrophily.The N doping of graphene can modulation its
Electronic structure and chemical reactivity.But the thermostabilizations such as graphite nitrogen, pyridine nitrogen and pyrroles's nitrogen can only obtain by high-temperature heat treatment
The good nitrating product of property, although these nitrating products also have certain catalytic activity, wellability and chemical reactivity are poor.
The content of the invention
The present invention is low by open cost, and mild condition is simple to operate, and energy consumption is low, and nitrogen content is higher, and electric conductivity is good
Preparation method of the amination graphene of photo-reduction as DSSC to electrode.
The present invention provides a kind of amination graphene of photo-reduction as preparation of the DSSC to electrode
Method, comprise the following steps：
1) by the aqueous solution 5~20min of ozone oxidation of graphene oxide, centrifugation, supernatant is abandoned, by 40~60 DEG C of sediment
Vacuum drying；
2) solvent is added into the open glass bottle of the graphene oxide sheet by ozone oxidation containing step 1) and is urged
The concentrated ammonia liquor of agent 25%~28%, 0.5~2h of ultrasonic disperse, obtains burgundy colloidal sol, and this open glass bottle is transferred to containing dense
In the polytetrafluoroethyllining lining of ammoniacal liquor, wherein, concentrated ammonia liquor liquid level is less than open glass bottleneck, is transferred in autoclave, 150~200
DEG C reaction 10~18h, separate, be dried to obtain amination graphene；The solvent is selected from phenmethylol, ethylene glycol, and one in ethanol
Kind；Open glass bottle separates with liner, during which places concentrated ammonia liquor as the graphite oxide after volatilizer and reducing agent, with ozonisation
Alkene reacts.
3) amination graphene that will be obtained in step 2), dissolved, ball milling, scratched on electro-conductive glass with isopropanol, and
0.5~2h of electro-conductive glass illumination of the slurry will be scribbled.
Further, in the above-mentioned technical solutions, in step 1), graphene oxide uses Hummers methods or improved
It is prepared by Hummers methods or other method.
Further, in the above-mentioned technical solutions, in step 1), the concentration of aqueous solution of graphene oxide is 2.5~5g/L.
Further, in the above-mentioned technical solutions, in step 2), graphene oxide and the solvent load ratio of ozone oxidation are
20~30mg：5~10mL；The volume ratio of solvent and catalyst concentrated ammonia liquor is (10~20)：1.
Further, in the above-mentioned technical solutions, in step 2), the body of solvent and the concentrated ammonia liquor in polytetrafluoroethyllining lining
Product is than being 1:(0.5~1).
Further, in the above-mentioned technical solutions, in step 3), amination graphene and isopropanol amount ratio be 100~
180mg：4~8mL.
Further, in the above-mentioned technical solutions, in step 3), illumination light source is mercury lamp or xenon lamp.
Further, in the above-mentioned technical solutions, mercury lamp is 100~400W.
Further, in the above-mentioned technical solutions, xenon lamp is 1000~1500W using above-mentioned to electrode assembling dye sensitization
Solar cell, the electricity conversion of battery is tested, and the photoelectricity of the solar cell assembled with Pt electrodes and graphene turns
Change efficiency to be contrasted.
Invention beneficial effect
If carrying out amination modification to graphene oxide, nitrogenous functional group is introduced, graphene oxide can not only be improved and existed
Solubility in polar solvent, it can also improve the reactivity of graphene oxide and organic molecule polymer.This method passes through solvent
Hot method, ammoniacal liquor is as catalyst, reducing agent；Phenmethylol realizes the step reduction of graphene oxide as solvent, while introduces primary amine
Group, amino is set to be grafted onto surface of graphene oxide.And graphene oxide is carried out to the ozone oxidation of different time in advance, can
To obtain the epoxide group of varying number on graphene oxide sheet, the increase of epoxide group quantity causes graphite oxide interlamellar spacing
Increase, be more conducive to limellar stripping, be advantageous to nucleophilic attack of the follow-up ammoniacal liquor to epoxy radicals, so as to be introduced not on graphene
With the amino of quantity, the electron donation and wetability of catalyst are improved, and select phenmethylol to make solvent electric conductivity also to have
Improved.Obtained amination graphene is scratched on electro-conductive glass, and the illumination of different time is carried out under 400W mercury lamps,
Electricity conversion is generally improved after being assembled into the quick battery of dye.
Brief description of the drawings
Fig. 1 is the schematic diagram of synthesizing amino graphite alkene and the photo-irradiation treatment of paired electrode processed (light source is 400W mercury lamps)；
Fig. 2 is the X-ray diffraction of GO and the powder to AGO illumination different times, AGO-0h, AGO-0.5h, AGO-1h,
AGO-2h；
Fig. 3 is AGO-0h and AGO-1h SEM；
The XPS that Fig. 4 is GO, AGO-0h and AGO-1h is composed entirely；
The C1s that Fig. 5 is GO is composed；
The C1s that Fig. 6 is (a) AGO-1h is composed；(b) AGO-1h N1s spectrums；
Fig. 7 is the I-V curve of DSSC.
Embodiment
Graphene oxide GO is prepared using improved Hummers methods：By H2SO4/H3PO4According to 9:1 ratio mixing, adds
Enter to crystalline flake graphite (3.0g) and KMnO4In the mixture of (18.0g), reactant is then heated to 50 DEG C, water-bath, and stir
12h, reactant is cooled to room temperature, is then poured over (advance freezing~400mL deionized waters) on ice, slowly added into ice cube
Enter 15~20mL 30%H2O2, reactant is changed into yellow from purple, with high-speed refrigerated centrifuge 16000rpm centrifugations
30min, remaining solid are washed 2 times with 200mL 30%HCl successively, and 200mL deionized waters are washed 4~5 times, are washed till neutrality, most
Afterwards with 200mL ethanol immersion sediment, left undisturbed overnight, centrifugation, solids is tiled on surface plate, 40 DEG C of dryings, obtains oxidation stone
Black alkene GO.
Embodiment 1
Referring to Fig. 1, the amination graphene of photo-reduction is as DSSC to electrode, and its preparation method is such as
Under：
1) graphene oxide GO is prepared using improved Hummers methods.By the obtained graphene oxide GO aqueous solution
(3mg/mL) ozone oxidation 0min, 5min, 10min, 20min, centrifugation, abandons supernatant, by 60 DEG C of vacuum drying of sediment；
2) take graphene oxide sheets of the 30mg Jing Guo ozone oxidation to be placed in 10mL open glass bottles, and add thereto
10mL phenmethylols and 0.5mL concentrated ammonia liquors, ultrasonic disperse 1.5h, obtain dark brown colloidal sol, and open glass bottle is put into polytetrafluoroethyl-ne
In alkene liner, and 10ml concentrated ammonia liquors are added into liner, liner is transferred in autoclave, 180 DEG C of reaction 10h, taken out after cooling
Filter, sediment is dried into 12h in 60 DEG C of air dry ovens, 1 is shown in Table, obtains the amination graphene AGO- of different nitrogen contents
0min、AGO-5min、AGO-10min、AGO-20min；
After table 1 ozone oxidation 0min, 5min, 10min, 20min, then carry out the elementary analysis of the sample after amination
3) nitrogen content highest amination graphene AGO-10min will be obtained, will be dissolved with isopropanol, ball milling 6h, blade coating arrives
On electro-conductive glass, (passing through multiple optimization processing, optimal thickness is about 5~8 μm), and the electro-conductive glass for scribbling the slurry is distinguished
Illumination 0h, 0.5h, 1h, 2h, the amination graphene of photo-reduction is respectively obtained as DSSC to electrode：
AGO-0h、AGO-0.5h、AGO-1h、AGO-2h；Will to electrode respectively with TiO2Light anode is assembled into dye sensitization of solar electricity
Pond, the electricity conversion of battery is tested, and the electricity conversion of the solar cell assembled with Pt electrodes and graphene enters
Row contrast.
Performance evaluation
Elementary analysis is shown in Table 1, and within the specific limits, with the increase of ozone oxidation time, GO epoxy radicals quantity has
Increased, after carrying out amination, AGO-0h nitrogen content increase, when wherein ozonation time is 10min, nitrogen content is up to
10.46%.
XRD results are shown in that Fig. 2, GO have very strong (001) spike at 10 degree or so, and AGO-0h (001) diffraction maximum disappears,
The diffraction maximum for occurring new (002) at 25 degree or so simultaneously and characterizing graphite-structure.With the increase of photo-reduction time, (002) peak
Weaken widthization, and after photo-reduction, GO and AGO-0h substantially weaken in 44 degree or so (100) diffraction maximum, until disappear, explanation
Photo-reduction can influence AGO-0h structure.
Fig. 3 is AGO-0h and AGO-1h SEM；It can be seen that AGO-0h is with unordered, fold from electron microscopic picture
The network structure of intertexture, be advantageous to the interracial contact between electrode and electrolyte, be advantageous to electric charge transmission, so as to be advantageous to improve iodine
Reduction reaction rate.It is lamellar structure after photo-reduction, illustrates that amination graphene is further reduced by photoreduction, oxy radical
Lamella is caused to stack.
The XPS that Fig. 4 is GO, AGO-0h and AGO-1h is composed entirely；From the figure, it can be seen that AGO-1h, AGO-0h and GO exist
Nearby there are C 1s peaks, occurs O 1s peaks near 530eV in 283eV, and N occur near 400eV in AGO-0h, AGO-1h
1s signal peaks, while AGO-0h O 1s peak intensities substantially weaken；After photo-reduction, AGO-1h O 1s peak intensities are further cut
It is weak.
The C1s that Fig. 5 is GO is composed；It can be seen that the C containing sp2 hydridization in GO, and different types of oxygen-containing functional group, i.e.,
Hydroxyl, carboxyl, the presence of epoxy radicals.
The C1s that Fig. 6 is (a) AGO-1h is composed；(b) AGO-1h N1s spectrums；From the C1s spectrums of figure (a), it can be seen that C-N believes
The appearance at number peak and the new signal peaks of C=O, and C-O-C and O=C-OH signal peaks disappear, and illustrate epoxy radicals and carboxyl
The successful removal of functional group.In figure (b) N1s spectrums, there is C-NH2Signal peak proves the presence of amino, and AGO-1h has
The existence form of two kinds of nitrogen, one kind are pyridine nitrogens, and one kind is amination nitrogen.
Fig. 7 is the I-V curve of DSSC, is drawn a conclusion by Fig. 7：The dye sensitization prepared with the method
Battery efficiency and Pt electrode very close (electricity conversion of the solar cell to electrode:Pt 7.79%, AGO-1h
7.51%), and the method good dispersion, cost are low.
The assembling process of DSSC：
1. by TiO2Slurry (granular size about 20-30nm) be printed onto on FTO electro-conductive glass (effective area be 4mm ×
4mm, about 14-16 μm of thickness), 325 DEG C of burning 15min in Muffle furnace, 375 DEG C of burning 15min, 450 DEG C of burning 25min, 500 DEG C are burnt
30min, room temperature is cooled to, roasting light anode is then placed in dyestuff (main component N719, acetonitrile：The tert-butyl group=1:1)
In 45 DEG C soak 120 minutes；
2. by TiO2Light anode is taken out from dye tank, with alcohol flushing, N2Rifle dries up, then with obtained to electrode pair
Connect, with clamp, be assembled into battery, liquid electrolyte (is I-/I3 -Electrolyte) test when along glass drop
Add.
3. wherein, as a comparison：Pt electrodes are prepared with the method for magnetron sputtering, Pt is splashed on FTO electro-conductive glass, its
Thickness is about 200nm.The preparation of graphene：By 1mg/mL graphene oxide water solutions, ultrasonic disperse.Then move into three mouthfuls of burnings
In bottle, 80 DEG C are warming up to, 2mL 80% hydrazine hydrate is added dropwise, reacts 24h, obtained product is filtered, and is washed with absolute ethyl alcohol
Wash, then 12h is dried in 60 DEG C of vacuum drying chamber.
Using following apparatus test made of DSSC I-V curve 1. digital sourcemeter (Keithley
2601, Keithley instrument company of the U.S.) 2. solar simulator (xenon lamp, lighting programmers AM1.5,100mW/cm2)(PEC-
L15, Japanese Peccell companies) 3. standard silion cell (being used for calibration light source) (BS-520, Japanese Sharp company).
The photovoltaic parameter of the DSSC of 2 four kinds of catalyst compositions of table
Claims (7)
1. preparation method of the amination graphene of photo-reduction as DSSC to electrode, including following step
Suddenly：
1) by the aqueous solution 5~20min of ozone oxidation of graphene oxide, centrifugation, supernatant is abandoned, by 40~60 DEG C of vacuum of sediment
Dry；
2) solvent and catalyst are added into the open glass bottle of the graphene oxide sheet by ozone oxidation containing step 1),
Wherein catalyst is 25%~28% concentrated ammonia liquor, 0.5~2h of ultrasonic disperse, obtains burgundy colloidal sol, and this open glass bottle is turned
Enter in the polytetrafluoroethyllining lining containing concentrated ammonia liquor, wherein, concentrated ammonia liquor liquid level is less than open glass bottleneck, and liner is transferred into high pressure
In kettle, 150~200 DEG C of 10~18h of reaction, separate, be dried to obtain amination graphene；The solvent is selected from phenmethylol, second two
Alcohol, one kind in ethanol；
3) amination graphene that will be obtained in step 2), dissolved, ball milling, scratched on electro-conductive glass with isopropanol, and will applied
There is 0.5~2h of electro-conductive glass illumination of amination graphene；
In step 3), illumination light source is mercury lamp or xenon lamp.
2. system of the amination graphene of photo-reduction according to claim 1 as DSSC to electrode
Preparation Method, it is characterised in that：In step 1), the concentration of aqueous solution of graphene oxide is 2.5~5g/L.
3. system of the amination graphene of photo-reduction according to claim 1 as DSSC to electrode
Preparation Method, it is characterised in that：In step 2), graphene oxide and the solvent load ratio of ozone oxidation are 20~30mg：5~
10mL；The volume ratio of solvent and catalyst concentrated ammonia liquor is (10~20)：1.
4. system of the amination graphene of photo-reduction according to claim 1 as DSSC to electrode
Preparation Method, it is characterised in that：In step 2), the volume ratio of solvent and the concentrated ammonia liquor in polytetrafluoroethyllining lining is 1:(0.5~
1)。
5. system of the amination graphene of photo-reduction according to claim 1 as DSSC to electrode
Preparation Method, it is characterised in that：In step 3), amination graphene and isopropanol amount ratio are 100~180mg：4~8mL.
6. system of the amination graphene of photo-reduction according to claim 1 as DSSC to electrode
Preparation Method, it is characterised in that：Mercury lamp is 100~400W.
7. system of the amination graphene of photo-reduction according to claim 1 as DSSC to electrode
Preparation Method, it is characterised in that：Xenon lamp is 1000~1500W.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610065361.3A CN105719837B (en) | 2016-01-29 | 2016-01-29 | Preparation method of the amination graphene of photo-reduction as DSSC to electrode |
Applications Claiming Priority (1)
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| CN104108705A (en) * | 2014-07-11 | 2014-10-22 | 同济大学 | Preparation method of nitrogen-doped directional graphene |
| CN104129784A (en) * | 2014-08-05 | 2014-11-05 | 桂林理工大学 | Method for inducing high-nitrogen-doped photo-reduced graphene oxide film through fluorination |
| CN104591171A (en) * | 2015-01-20 | 2015-05-06 | 宁波卡尔新材料科技有限公司 | Method for synthesizing soluble graphene composite material by virtue of visible light reduction |
| CN105044179A (en) * | 2015-06-17 | 2015-11-11 | 青岛大学 | Three-dimensional graphene-modified electrode used for detecting tumor markers and preparation method of three-dimensional graphene-modified electrode |
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| CN104108705A (en) * | 2014-07-11 | 2014-10-22 | 同济大学 | Preparation method of nitrogen-doped directional graphene |
| CN104129784A (en) * | 2014-08-05 | 2014-11-05 | 桂林理工大学 | Method for inducing high-nitrogen-doped photo-reduced graphene oxide film through fluorination |
| CN104591171A (en) * | 2015-01-20 | 2015-05-06 | 宁波卡尔新材料科技有限公司 | Method for synthesizing soluble graphene composite material by virtue of visible light reduction |
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