CN104752067A - Microwave-assisted method of nickel molybdate graphene composite material used for capacitor - Google Patents
Microwave-assisted method of nickel molybdate graphene composite material used for capacitor Download PDFInfo
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- 239000002131 composite material Substances 0.000 title claims abstract description 26
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 25
- 229910021389 graphene Inorganic materials 0.000 title claims abstract description 17
- 239000003990 capacitor Substances 0.000 title claims abstract description 14
- 238000000034 method Methods 0.000 title claims abstract description 7
- NLPVCCRZRNXTLT-UHFFFAOYSA-N dioxido(dioxo)molybdenum;nickel(2+) Chemical compound [Ni+2].[O-][Mo]([O-])(=O)=O NLPVCCRZRNXTLT-UHFFFAOYSA-N 0.000 title claims abstract description 5
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000000463 material Substances 0.000 claims abstract description 9
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 6
- 239000010439 graphite Substances 0.000 claims abstract description 6
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims abstract description 4
- 229910052750 molybdenum Inorganic materials 0.000 claims abstract description 4
- 239000011733 molybdenum Substances 0.000 claims abstract description 4
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 4
- 239000007772 electrode material Substances 0.000 claims description 14
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 12
- 239000012153 distilled water Substances 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 238000007599 discharging Methods 0.000 claims description 5
- 238000000840 electrochemical analysis Methods 0.000 claims description 5
- 239000000126 substance Substances 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 claims description 3
- 239000012046 mixed solvent Substances 0.000 claims description 3
- 238000010992 reflux Methods 0.000 claims description 3
- 238000005406 washing Methods 0.000 claims description 3
- 238000002441 X-ray diffraction Methods 0.000 claims description 2
- 238000002360 preparation method Methods 0.000 claims description 2
- 241000446313 Lamella Species 0.000 claims 1
- 238000013019 agitation Methods 0.000 claims 1
- 239000000203 mixture Substances 0.000 claims 1
- 239000000843 powder Substances 0.000 claims 1
- 150000001875 compounds Chemical class 0.000 abstract description 4
- 238000011161 development Methods 0.000 abstract description 4
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 abstract description 3
- 239000004202 carbamide Substances 0.000 abstract description 3
- 230000001737 promoting effect Effects 0.000 abstract description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract 4
- 229910005809 NiMoO4 Inorganic materials 0.000 abstract 2
- 229910052757 nitrogen Inorganic materials 0.000 abstract 2
- 229910019614 (NH4)6 Mo7 O24.4H2 O Inorganic materials 0.000 abstract 1
- FIXLYHHVMHXSCP-UHFFFAOYSA-H azane;dihydroxy(dioxo)molybdenum;trioxomolybdenum;tetrahydrate Chemical compound N.N.N.N.N.N.O.O.O.O.O=[Mo](=O)=O.O=[Mo](=O)=O.O=[Mo](=O)=O.O=[Mo](=O)=O.O[Mo](O)(=O)=O.O[Mo](O)(=O)=O.O[Mo](O)(=O)=O FIXLYHHVMHXSCP-UHFFFAOYSA-H 0.000 abstract 1
- 238000006243 chemical reaction Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 229910044991 metal oxide Inorganic materials 0.000 description 4
- 150000004706 metal oxides Chemical class 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000004729 solvothermal method Methods 0.000 description 3
- 238000003786 synthesis reaction Methods 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 230000003321 amplification Effects 0.000 description 2
- 238000001354 calcination Methods 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 239000002105 nanoparticle Substances 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000007774 positive electrode material Substances 0.000 description 2
- 239000002244 precipitate Substances 0.000 description 2
- 230000035484 reaction time Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000001291 vacuum drying Methods 0.000 description 2
- -1 Transition metal molybdate Chemical class 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 239000003575 carbonaceous material Substances 0.000 description 1
- 239000012876 carrier material Substances 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 239000002322 conducting polymer Substances 0.000 description 1
- 229920001940 conductive polymer Polymers 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000001027 hydrothermal synthesis Methods 0.000 description 1
- 229910000000 metal hydroxide Inorganic materials 0.000 description 1
- 150000004692 metal hydroxides Chemical class 0.000 description 1
- MEFBJEMVZONFCJ-UHFFFAOYSA-N molybdate Chemical compound [O-][Mo]([O-])(=O)=O MEFBJEMVZONFCJ-UHFFFAOYSA-N 0.000 description 1
- 239000002114 nanocomposite Substances 0.000 description 1
- 239000002086 nanomaterial Substances 0.000 description 1
- 239000002073 nanorod Substances 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- 239000010970 precious metal Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000006479 redox reaction Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000007086 side reaction Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
- 238000010189 synthetic method Methods 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 229910052723 transition metal Inorganic materials 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/22—Electrodes
- H01G11/24—Electrodes characterised by structural features of the materials making up or comprised in the electrodes, e.g. form, surface area or porosity; characterised by the structural features of powders or particles used therefor
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/22—Electrodes
- H01G11/26—Electrodes characterised by their structure, e.g. multi-layered, porosity or surface features
- H01G11/28—Electrodes characterised by their structure, e.g. multi-layered, porosity or surface features arranged or disposed on a current collector; Layers or phases between electrodes and current collectors, e.g. adhesives
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/22—Electrodes
- H01G11/30—Electrodes characterised by their material
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/22—Electrodes
- H01G11/30—Electrodes characterised by their material
- H01G11/46—Metal oxides
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/84—Processes for the manufacture of hybrid or EDL capacitors, or components thereof
- H01G11/86—Processes for the manufacture of hybrid or EDL capacitors, or components thereof specially adapted for electrodes
-
- 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
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/13—Energy storage using capacitors
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Electric Double-Layer Capacitors Or The Like (AREA)
Abstract
The invention discloses a microwave-assisted method of a nickel molybdate graphene composite material used for a capacitor. An anode composite material of a NiMoO4-rGO capacitor is prepared by taking NiCl2.6H2O as a nickel source, (NH4)6Mo7O24.4H2O as a molybdenum source and graphite oxide as a carrier through microwave reflow assisting. The composite material effectively combines NiMoO4 with graphene, graphite oxide is reduced to be graphene through high-temperature reflow, urea serving as a nitrogen source provides rich nitrogen doping sites, and NiMoO4 is effectively adhered on the surface of graphene, so that specific capacitance of a compound is improved, electroconductivity of the compound is improved, and the microwave-assisted method has the advantages of simple operation, low cost, long circulating life, safety, zero pollution, high efficiency and the like. The microwave-assisted method is of great significance in solving the problem of energy resources and promoting application and development of super-capacitor materials.
Description
Technical field
The invention belongs to ultracapacitor field, be specifically related to NiCl
26H
2o is nickel source, (NH
4)
6mo
7o
244H
2o is molybdenum source, and Graphene is carrier, synthesis NiMoO
4-rGO capacitor positive electrode composite material.
Background technology
Ultracapacitor is the high-efficiency energy-storage device between common batteries and traditional capacitor, have high-energy-density, high power density, can the characteristic such as Rapid Circulation discharge and recharge, long-life, operating temperature range be wide.The electrode material of ultracapacitor mainly comprises three classes: material with carbon element, metal oxide, conducting polymer.Carbon-based material is the class electrode material being applied to ultracapacitor the earliest, has the features such as stable performance, excellent electric conductivity, cheap, aboundresources, but as its ratio capacitance of capacitor material several order of magnitude low compared with metal oxide.The research that current various metal oxide containing precious metals is used as electrode material for super capacitor causes many concern and interest, wherein RuO
2it is the representational electrode material of electrochemical capacitor most.Although RuO
2there is unrivaled capacitance characteristic, but its resource-constrained, expensive and there is toxicity, so it applies the restriction received to a certain degree.Ni (OH)
2, NiO
2, MnO
2, Co (OH)
2, Co
3o
4there is Deng metal hydroxides or oxide the advantages such as high specific capacity, wide operating voltage window, good cyclical stability, and abundant raw material source, environmental protection, cost price are low, are thus acknowledged as and have very large development potentiality and use value.
Transition metal molybdate, as emerging faraday's electrode material, produces fake capacitance by redox reaction.In addition, NiMoO
4nano particle has the advantages such as particle diameter is little, specific area is large, and therefore it has higher ratio capacitance as electrode material.But due to NiMoO
4conductivity poor, limit its development in ultracapacitor to a certain extent.Graphene (Graphene), as a kind of emerging material with carbon element, has the conductivity of superelevation and larger specific area, is considered to one of optimal carrier material.By Graphene and single electrode material (such as molybdate) compound, not only increase the conductivity of composite material, also its specific area is considerably increased, thus improve chemical property, to solving the energy problem of growing tension and promoting that the application development of super capacitor material is of great significance.
Traditional synthetic method mainly hydro thermal method, heating reflux method of electrode material, but because of its reaction time consumption long, in repetition test, find optimum reaction condition often to need the experimental period grown very much.The present invention relates to microwave solvothermal method, the reaction time not only can be made even within several days, to foreshorten to by original tens hours and complete a few minutes in even a few second, but also the superfine nano particle of morphology controllable can be generated.Therefore, microwave solvothermal method has wide prospect in the synthesis of nano material.
Summary of the invention
The object of the present invention is to provide a kind of with low cost, prepare simple and direct, ratio capacitance large, have extended cycle life, environment amenable NiMoO
4-rGO capacitor electrode material.The NiMoO that the present invention proposes
4-rGO capacitor positive electrode material utilizes microwave solvothermal method auxiliary obtained.In microwave reflux course, graphite oxide effectively can be reduced into Graphene as reducing agent by urea, and simultaneously urea can be used as nitrogenous source and provides to Graphene and enrich N doping site, makes NiMoO
4nanometer rods effectively sticks to the surface of Graphene, reduces NiMoO simultaneously
4agglomeration.Graphene has the advantages such as high-ratio surface sum good electric conductivity, and NiMoO
4after compound, not only increase the conductivity of composite material, also provide larger specific area, thus make the ratio capacitance of composite material be much higher than pure NiMoO
4ratio capacitance.The microwave solvent thermal means that this invention relates to, can substantially reduce reaction duration, be rapidly heated, and accurately controls the temperature of reaction system thus controls reaction better, reduces side reaction and occurs.The pattern of composite material can be seen intuitively by transmission electron microscope photo, and in nano bar-shape structure, particle diameter is between 20-35nm, and unordered dispersion growth is at graphenic surface.When multiplication factor is to 400000 times, can sees that nanorod surfaces is distributed with the hole not of uniform size of a large amount of white, estimate between 2-10 nanometer, these mesoporous specific areas considerably increasing material.NiMoO in XRD spectra
4and the characteristic peak of composite material and standard comparison card (JCPDS card no. 13-0128) basically identical, the target product having synthesized pure phase is described.Electro-chemical test adopts three-electrode system to carry out in 6M KOH electrolyte, and can calculate ratio capacitance by charging and discharging curve, ratio capacitance is evaluation very important parameter of electrode material.Composite material ratio capacitance when current density is 1A/g can reach 1270F/g, as a comparison our pure NiMoO of synthesizing under testing similarity condition
4, its ratio capacitance is only 800F/g when 1A/g.The ratio capacitance of composite material is much higher than pure NiMoO
4, this is mainly due to after graphene-doped, and the specific area of composite material increases, and conductivity improves raising.On the whole, microwave solvothermal auxiliary synthesis NiMoO
4-rGO nano composite material, has quick, with low cost, ratio capacitance simple to operate large, the advantages such as efficiency is high, safety non-pollution.
The porous NiMoO that the present invention proposes
4the preparation method of-rGO composite material is as follows:
1, first, with NiCl
26H
2o is nickel source, (NH
4)
6mo
7o
244H
2o is molybdenum source, graphite oxide (GO) as presoma, by a certain amount of NiCl
26H
2o, (NH
4)
6mo
7o
244H
2o, CO (NH
2)
2add in 50 mL mixed solvents (distilled water and ethylene glycol volume ratio are 1:1) with GO, ultrasonic disperse 30min, forms uniform suspension-turbid liquid;
2, transferred to by above-mentioned suspension-turbid liquid in the round-bottomed flask of 100 mL, microwave power is adjusted to 200W, 115 DEG C of backflow 30min; 3, the black precipitate distilled water obtained and absolute ethyl alcohol filtering and washing three times, put into vacuum drying chamber 60 DEG C of dry 12h;
4, finally desciccate is heat-treated, at 350 DEG C of calcining 3h;
5, by carrying out TEM, XRD and electro-chemical test to obtained electrode material, to the NiMoO obtained
4-rGO carries out overall merit.
Accompanying drawing explanation
Fig. 1 is the TEM figure of prepared sample.Fig. 1-(1) is the high power transmission plot of composite material after amplification 10000 times, the NiMoO of one-dimentional structure
4nanometer rods grows disorderly on graphene sheet layer surface, and Graphene is the tulle shape structure with fold as seen from the figure.Fig. 1-(2) are the NiMoO after amplification 400000 times
4nanometer rods, estimates that its diameter is at 30 ran, has the hole distribution much appearing as white in whole nanometer rods simultaneously, and aperture is not in 3-10 nanometer etc.
Fig. 2 is the XRD curve of obtained sample.Curve (1) is NiMoO
4-rGO composite material, curve (2) is pure NiMoO
4, standard comparison card NiMoO is had in the bottom of figure
4xH
2o(JCPDS card no. 13-0128) characteristic peak.Can see through contrast, the peak of two kinds of materials and standard comparison card go out peak position and intensity is basically identical.
Fig. 3 is the charging and discharging curve of made sample.Curve (2) is NiMoO
4the charging and discharging curve of-rGO composite material, curve (1) is pure NiMoO
4charging and discharging curve.
Embodiment
Embodiment
By 50 mg GO, 1.1g NiCl
26H
2o, 0.8g (NH
4)
6mo
7o
244H
2o and 0.6g CO (NH
2)
2add in 50 mL mixed solvents (distilled water and ethylene glycol volume ratio are 1:1), ultrasonic disperse 30min, forms uniform suspension-turbid liquid.Above-mentioned suspension-turbid liquid is transferred to the round-bottomed flask of 100mL, put into Discover microwave reactor, power is adjusted to 200W, 115 DEG C of backflow 30min.The black precipitate distilled water obtained and absolute ethyl alcohol filtering and washing three times, put into vacuum drying chamber 60 DEG C of dry 12h.Finally desciccate is heat-treated, the lower 350 DEG C of calcining 3h of air conditions.Carry out TEM, XRD and electro-chemical test to obtained electrode material, its result shows NiMoO
4-rGO positive electrode composite material, when current density is 1A/g, ratio capacitance can reach 1270F/g.
In contrast, above-mentioned similarity condition and step is adopted to prepare pure NiMoO
4.Carry out TEM, XRD and electro-chemical test to obtained electrode material, its result shows NiMoO
4positive electrode material, when current density is 1A/g, ratio capacitance can reach 800F/g.
Claims (5)
1. with NiCl
26H
2o is nickel source, (NH
4)
6mo
7o
244H
2o is molybdenum source, and graphite oxide is as presoma, and distilled water and ethylene glycol are mixed solvent, prepare NiMoO by microwave reflux method
4-rGO combination electrode material, is applied to electric chemical super capacitor and represents excellent chemical property.
2. the composite material according to claims 1, its preparation method is by NiCl
26H
2o, (NH
4)
6mo
7o
244H
2o, graphite oxide, distilled water and ethylene glycol (volume ratio 1:1) mix magnetic agitation 30 minutes, and carry out microwave backflow subsequently, power is adjusted to 200W, and 150 DEG C keep 25 minutes, and washing is for several times, dry, is finally calcined 3 hours at 350 DEG C by gained presoma.
3. the composite material according to claims 1, transmission electron microscope (TEM) discloses its microstructure, and the nickel molybdate nanometer rods random growth of one dimension porous is on graphene nano lamella surface, and the diameter of nanometer rods is at 30 ran.
4. the composite material according to claims 1, obtains XRD spectra by X-ray powder diffractometer (XRD), and composite material goes out peak position and standard comparison card is basically identical, proves to obtain comparatively pure phase composite material.
5. the composite material according to claims 1, good electric chemical property is shown in electro-chemical test, its result of ratio capacitance is calculated as follows: when current density is all 1A/g according to charging and discharging curve, the ratio capacitance of composite material can reach 1270F/g, higher than the ratio capacitance 800F/g with reference to the pure nickel molybdate of material.
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|---|---|---|---|
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105448530A (en) * | 2015-11-30 | 2016-03-30 | 广东工业大学 | Preparation method for nickel molybdate/graphene composite material |
| CN106024412A (en) * | 2016-07-07 | 2016-10-12 | 太原理工大学 | Carbon nanotube/metal oxide composite material with high specific capacitance feature, and preparation |
| CN107195468A (en) * | 2017-05-24 | 2017-09-22 | 太原理工大学 | Have metal oxide/graphene oxide composite material and the preparation of high specific capacitance characteristic |
| CN108565436A (en) * | 2018-05-11 | 2018-09-21 | 上海应用技术大学 | A kind of preparation method of spherical nickel molybdate/graphene composite material |
| CN108588754A (en) * | 2018-05-11 | 2018-09-28 | 上海应用技术大学 | A kind of nickel molybdate/graphene composite material and preparation method for electrocatalytic hydrogen evolution |
| CN109243847A (en) * | 2018-10-25 | 2019-01-18 | 上海应用技术大学 | Three-dimensional ordered macroporous carbon-coated NiMoO4/ redox graphene nanocomposite of one kind and preparation method thereof |
| CN112875756A (en) * | 2021-02-19 | 2021-06-01 | 苏州科技大学 | Manganese molybdate nanoflower/graphene three-dimensional structure and high-specific-volume supercapacitor performance improvement method |
| CN112875757A (en) * | 2021-02-19 | 2021-06-01 | 苏州科技大学 | Design and synthesis method of manganese molybdate nanowire/graphene composite material for supercapacitor |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105448530A (en) * | 2015-11-30 | 2016-03-30 | 广东工业大学 | Preparation method for nickel molybdate/graphene composite material |
| CN106024412A (en) * | 2016-07-07 | 2016-10-12 | 太原理工大学 | Carbon nanotube/metal oxide composite material with high specific capacitance feature, and preparation |
| CN106024412B (en) * | 2016-07-07 | 2019-02-01 | 太原理工大学 | Have carbon nanotube/metal oxide composite and the preparation of high specific capacitance characteristic |
| CN107195468A (en) * | 2017-05-24 | 2017-09-22 | 太原理工大学 | Have metal oxide/graphene oxide composite material and the preparation of high specific capacitance characteristic |
| CN108565436A (en) * | 2018-05-11 | 2018-09-21 | 上海应用技术大学 | A kind of preparation method of spherical nickel molybdate/graphene composite material |
| CN108588754A (en) * | 2018-05-11 | 2018-09-28 | 上海应用技术大学 | A kind of nickel molybdate/graphene composite material and preparation method for electrocatalytic hydrogen evolution |
| CN109243847A (en) * | 2018-10-25 | 2019-01-18 | 上海应用技术大学 | Three-dimensional ordered macroporous carbon-coated NiMoO4/ redox graphene nanocomposite of one kind and preparation method thereof |
| CN112875756A (en) * | 2021-02-19 | 2021-06-01 | 苏州科技大学 | Manganese molybdate nanoflower/graphene three-dimensional structure and high-specific-volume supercapacitor performance improvement method |
| CN112875757A (en) * | 2021-02-19 | 2021-06-01 | 苏州科技大学 | Design and synthesis method of manganese molybdate nanowire/graphene composite material for supercapacitor |
| CN112875756B (en) * | 2021-02-19 | 2022-09-06 | 苏州科技大学 | Manganese molybdate nanoflower/graphene three-dimensional structure and high-specific-volume supercapacitor performance improvement method |
| CN112875757B (en) * | 2021-02-19 | 2023-11-24 | 苏州科技大学 | Design synthesis method of manganese molybdate nanowire/graphene composite material for supercapacitor |
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