CN108831750A - Three-dimensional porous Ni-Co film/CoMoO4The preparation method of composite material - Google Patents

Three-dimensional porous Ni-Co film/CoMoO4The preparation method of composite material Download PDF

Info

Publication number
CN108831750A
CN108831750A CN201810507833.5A CN201810507833A CN108831750A CN 108831750 A CN108831750 A CN 108831750A CN 201810507833 A CN201810507833 A CN 201810507833A CN 108831750 A CN108831750 A CN 108831750A
Authority
CN
China
Prior art keywords
film
dimensional porous
porous
prepared
reaction kettle
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
Application number
CN201810507833.5A
Other languages
Chinese (zh)
Inventor
刘恩佐
温帅伟
秦凯强
赵乃勤
师春生
马丽颖
何春年
何芳
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tianjin University
Original Assignee
Tianjin University
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Tianjin University filed Critical Tianjin University
Priority to CN201810507833.5A priority Critical patent/CN108831750A/en
Publication of CN108831750A publication Critical patent/CN108831750A/en
Pending legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01GCAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
    • H01G11/00Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
    • H01G11/22Electrodes
    • H01G11/24Electrodes 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
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01GCAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
    • H01G11/00Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
    • H01G11/22Electrodes
    • H01G11/30Electrodes characterised by their material
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01GCAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
    • H01G11/00Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
    • H01G11/84Processes for the manufacture of hybrid or EDL capacitors, or components thereof
    • H01G11/86Processes for the manufacture of hybrid or EDL capacitors, or components thereof specially adapted for electrodes
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/13Energy storage using capacitors

Abstract

The present invention relates to a kind of preparation methods of three-dimensional porous Ni-Co film/CoMoO4 composite material, including:1) three-D nano-porous Ni-Co film is prepared;2) three-dimensional porous Ni-Co film is prepared;3) three-dimensional porous Ni-Co film/CoMoO4 electrode material is prepared:The cobalt nitrate and sodium molybdate mixed liquor for preparing debita spissitudo, mixed liquor is moved in reaction kettle;Then the three-dimensional porous Ni-Co film of the resulting self-supporting of step 2 is put into reaction kettle, static 1~3 hour;It is then placed in vacuum oven and is heated to 100-200 DEG C, react 3~8 hours, be cooled to room temperature to reaction kettle, the film in inner liner of reaction kettle is taken out, is washed and dried;By film, 350 DEG C of calcining 2h obtain three-dimensional porous Ni-Co film/CoMoO4 composite material under an ar atmosphere.

Description

Three-dimensional porous Ni-Co film/CoMoO4The preparation method of composite material
Technical field
The invention belongs to the preparation technical fields of nano material, and in particular to a kind of three-dimensional porous Ni- of controllable hole structure Co film/CoMoO4The preparation method of composite material and its application in terms of electrochemical capacitance.
Background technique
As the exhaustion and environmental problem of fossil energy become to become increasingly conspicuous, about cleaning, efficient, novel, renewable energy Source material and energy storage device have become the research hotspot of current new energy field.Supercapacitor is with its high power density, fast Fast charge and discharge process, high cycle life and advantages of environment protection have become most promising energy storage device.By Gradually become smaller and smaller in present electronic equipment, so how to improve the volume and capacity ratio of material and its volume energy of device Density is the hot spot of Recent study.
Electrode material be influence supercapacitor capacitive character can principal element, develop the electrode material of high specific capacitance for Key effect can be had by improving supercapacitor capacitive character.RuO2, the materials such as MXene show splendid volumetric capacitance, but It is expensive, and preparation process is complicated, limits practical application.Currently, bimetallic oxide is a kind of energy storage being concerned Material.Since the oxidation state more than bimetallic oxide makes it have specific capacity more higher than single metal oxides, while these are double Metal oxide also has many advantages, such as from a wealth of sources, cheap, easy preparation.Especially CoMoO4Material, it has simultaneously The advantages that high theoretical specific capacity of cobalt oxide and molybdenum oxide reversible small ion storage, be a kind of ideal fake capacitance material. Now, in order to carry out the increase electric conductivity of bimetallic oxide, generally all use foam metal, carbon cloth and three-dimensional graphene foam as Collector.However, the disadvantages of big aperture of these collectors and low specific capacitance, always results in the low space utilization of overall electrode The volumetric capacitance of rate and difference.
One kind that nano porous metal is connected with each other by one or more metallic frameworks and is formed has three-dimensional continuous more The material of pore structure.Because of its three-dimensional continuous poriferous design feature, biggish specific surface area, high thermal conductivity are made it have The advantages that with high chemical stability, in energy storage, the fields such as catalysis, sensor are all widely used.Compared to foam metal, The material of the large apertures such as carbon cloth and three-dimensional graphene foam, nano porous metal not only have three-dimensional netted continuous pore structure and High specific capacitance, and its pore structure can also be adjusted on certain scale.These advantages illustrate nano porous metal It is a kind of ideal collector for preparing composite material.
Summary of the invention
The technical issues of present invention intends to solve is to provide the three of controllable hole structure a kind of simple and with high volume specific volume Tie up porous Ni-Co film/CoMoO4Combination electrode material preparation method.The resulting self-supporting electrode material of the preparation method has Three-D pore structure and high overall electrode space utilization rate, increase substantially the chemical property of electrode material, can directly apply, Simplification of flowsheet has saved cost, is suitble to industrialized production.Technical solution is as follows.
A kind of preparation method of three-dimensional porous Ni-Co film/CoMoO4 composite material, includes the following steps:
1) three-D nano-porous Ni-Co film is prepared
The NiCoMn alloy foil sheet for selecting 80-120 μ m-thick corrodes in ammonium sulfate and under Ar protection, will corrode It is dried in vacuo after film cleaning afterwards is clean, obtains three-D nano-porous Ni-Co film.
2) three-dimensional porous Ni-Co film is prepared
Nanoporous Ni-Co film made from step 1 is put into quartz boat, then thin equipped with nanoporous Ni-Co The quartz boat of film is placed in reaction tube burner hearth perimeter;It is first passed through a certain proportion of argon gas and hydrogen, at this time rises to furnace temperature 700-1000 DEG C, quartz boat is quickly moved to flat-temperature zone in the middle part of reaction tube after furnace temperature rises to assigned temperature, is forged at this temperature It burns 1-60 minutes;Quartz boat is quickly moved to outside burner hearth from flat-temperature zone in the middle part of reaction tube after calcining, under an ar atmosphere will Sample is quickly down to room temperature, then takes out sample from tube furnace to get to the three-dimensional porous Ni-Co film of self-supporting.
3) three-dimensional porous Ni-Co film/CoMoO is prepared4Electrode material
The cobalt nitrate and sodium molybdate mixed liquor for preparing debita spissitudo, mixed liquor is moved in reaction kettle;Then by step 2 institute The three-dimensional porous Ni-Co film of self-supporting obtained is put into reaction kettle, and static 1~3 hour;It is then placed in vacuum oven and heats It to 100-200 DEG C, reacts 3~8 hours, is cooled to room temperature to reaction kettle, the film in inner liner of reaction kettle is taken out, cleaning is simultaneously It is dry;By film, 350 DEG C of calcining 2h obtain three-dimensional porous Ni-Co film/CoMoO under an ar atmosphere4Composite material.
Preferably, 50 DEG C of corrosion 15-25h in 0.5-2M ammonium sulfate and under Ar protection.According to 1mmol: 1mmol:The proportion of 70-90ml prepares cobalt nitrate and sodium molybdate mixed liquor.
Compared with prior art, then the present invention passes through using the three-dimensional porous Ni-Co film of controllable hole structure as collector Hydro-thermal is in one layer of fine and close CoMoO of its skeleton surface uniform deposition4Then nanometer sheet obtains three-dimensional porous by low temperature calcination Ni-Co film/CoMoO4Composite material.The method of the present invention has the advantage that:(1) preparation method is simple, yield is high, nothing Pollution, and the three-dimensional porous Ni-Co film/CoMoO prepared4Composite material can self-supporting, do not need the slurry of dusty material Coating procedure can directly be applied without any post-processing, simplify process flow, cost be greatly saved;(2) this method The three-dimensional porous Ni-Co film of preparation has high electric conductivity, controllable pore structure and high specific capacity, it is ensured that high CoMoO4Deposition, high space utilization rate and the capacity contribution high to overall electrode;(3) electrode prepared is in CoMoO4Nanometer There is the continuous hole path of height between piece, it is ensured that the long-pending quick biography with electronics, ion of high electrolyte ion accessible surface It is defeated;(4) composite material of this method preparation combines the spy of three-dimensional porous Ni-Co film high conductivity and CoMoO4 Fabrication of High Specific Capacitance Point has given full play to the structural advantage and Ni-Co film and CoMoO of overall electrode4Between synergistic function, significantly mention The high chemical property of electrode material.
Detailed description of the invention
Fig. 1 is Ni used in the present invention20Co10Mn70The photomacrograph of alloy foil sheet;
Fig. 2 is three-D nano-porous Ni-Co film SEM image prepared by the present invention;
Fig. 3 is the SEM image of three-dimensional porous Ni-Co film prepared by example 1;
Fig. 4 is three-dimensional porous Ni-Co film/CoMoO prepared by example 14The SEM image of electrode material;
Fig. 5 is three-dimensional porous Ni-Co film/CoMoO prepared by example 14The TEM image of electrode material;
Fig. 6 is three-dimensional porous Ni-Co film/CoMoO prepared by example 14The XRD spectrum of electrode material;
Fig. 7 is three-dimensional porous Ni-Co film/CoMoO prepared by example 14The CV (cyclic voltammetric) of electrode material tests bent Line, sweep speed are 20mV s-1
Fig. 8 is three-dimensional porous Ni-Co film/CoMoO prepared by example 14The constant current charge-discharge of electrode material is tested bent Line, test current density is 2mA/cm-2;Three-dimensional porous Ni-Co film/CoMoO is calculated4Electrode material volumetric capacitance is 2601F/cm-3(being calculated according to the total volume of overall electrode).The prepared three-dimensional porous Ni-Co film/CoMoO of this explanation4It is multiple Condensation material has excellent chemical property;
The present invention does not address place and is suitable for the prior art.
Specific embodiment
The specific embodiment of preparation method of the present invention is given below.Preparation that these embodiments are only used for that the present invention will be described in detail Method is not intended to limit the protection scope of the claim of this application.
Embodiment 1
(1) three-D nano-porous Ni-Co film is prepared.
Select the Ni of 110 μ m-thicks20Co10Mn70Alloy foil sheet, and it is cut into 1 × 1cm2Size;Then it puts it into In 1.5M ammonium sulfate and Ar protection under 50 DEG C of corrosion 20h, after it is successively used to deionized water and alcohol washes, so After be put into drying at room temperature 30 hours in vacuum oven, obtain three-D nano-porous Ni-Co film.
(2) three-dimensional porous Ni-Co film is prepared.
Three-D nano-porous Ni-Co film obtained is put into quartz boat, then equipped with nanoporous Ni-Co film Quartz boat be placed in reaction tube burner hearth perimeter, be first passed through argon gas and hydrogen (argon gas:Hydrogen=500:200sccm), at this time Furnace temperature is risen to 900 DEG C;Quartz boat is quickly moved to flat-temperature zone in the middle part of reaction tube after furnace temperature rises to assigned temperature;In this temperature Lower calcining after five minutes quickly moves to quartz boat outside burner hearth from flat-temperature zone in the middle part of reaction tube, by sample under the atmosphere of argon gas It quickly is down to room temperature, is then taken out sample from tube furnace to get to the three-dimensional porous Ni-Co film of self-supporting.
(3) three-dimensional porous Ni-Co film/CoMoO is prepared4Electrode material
4mmol cobalt nitrate hexahydrate and 4mmol Sodium Molybdate Dihydrate are put into 80ml deionized water, are shifted after being sufficiently stirred Into the stainless steel cauldron of the polytetrafluoroethyllining lining of 100ml;Then by the three-dimensional porous Ni- of self-supporting obtained by step 2 Co film is also placed in aforesaid reaction vessel, and static 2 hours;It is then placed in vacuum oven and is heated to 150 DEG C, keep the temperature 5h, to Reaction kettle is cooled to room temperature, and the self-supporting film in inner liner of reaction kettle is taken out and is successively cleared up and is done with deionized water and alcohol Dry, finally by this film, 350 DEG C of calcining 2h obtain three-dimensional porous Ni-Co film/CoMoO under an ar atmosphere4Composite material.
(4) three-dimensional porous Ni-Co film/CoMoO4Composite material electrochemical capacitance performance test
Three-dimensional porous Ni-Co film/CoMoO4Composite material electrochemical capacitance performance is tested in the KOH aqueous solution of 6M, Wherein platinized platinum and Hg/HgO electrode are respectively as to electrode and reference electrode.
Prepared three-dimensional porous Ni-Co film/CoMoO4There is the pore structure of three-dimensional perforation in composite material, three-dimensional porous The aperture of Ni-Co film is 600~1000nm, CoMoO4The thickness of nanometer sheet, length and load capacity be respectively~5nm ,~ 450nm and 3.9mg cm-2
Embodiment 2
Unlike the first embodiment:(2) three-D nano-porous Ni-Co film obtained is put into quartz boat, then Quartz boat equipped with nanoporous Ni-Co film is placed in reaction tube burner hearth perimeter, is first passed through argon gas and hydrogen (argon gas:Hydrogen Gas=500:200sccm), furnace temperature is risen to 900 DEG C at this time;Quartz boat is quickly moved to reaction after furnace temperature rises to assigned temperature Flat-temperature zone in the middle part of pipe;Quartz boat is quickly moved to outside burner hearth from flat-temperature zone in the middle part of reaction tube after calcining 1 minute at this temperature, Sample is quickly down to room temperature under the atmosphere of argon gas, is then taken out sample from tube furnace to get three-dimensional more to self-supporting Hole Ni-Co film.Remaining is with embodiment 1, and which is not described herein again.
For the prepared three-dimensional porous Ni-Co film of self-supporting compared with example 1 obtains, pore structure is smaller, aperture~ 200 nm, and three-dimensional porous Ni-Co film/CoMoO4Composite active substance load capacity is 7.5mg cm-2
Embodiment 3
Unlike the first embodiment:(2) three-D nano-porous Ni-Co film obtained is put into quartz boat, then Quartz boat equipped with nanoporous Ni-Co film is placed in reaction tube burner hearth perimeter, is first passed through argon gas and hydrogen (argon gas:Hydrogen Gas=500:200sccm), furnace temperature is risen to 900 DEG C at this time;Quartz boat is quickly moved to reaction after furnace temperature rises to assigned temperature Flat-temperature zone in the middle part of pipe;Quartz boat is quickly moved to outside burner hearth from flat-temperature zone in the middle part of reaction tube after calcining 15 minutes at this temperature Sample is quickly down to room temperature under the atmosphere of argon gas by portion, then takes out sample from tube furnace, and it is three-dimensional more to obtain self-supporting Hole Ni-Co film.Remaining is with embodiment 1, and which is not described herein again.
Compared to example 1, for the prepared three-dimensional porous Ni-Co film of self-supporting compared with example 1 obtains, pore structure is bigger, Its aperture is in 800~1200nm, three-dimensional porous Ni-Co film/CoMoO4Composite active substance load capacity declines, and is 3.1mg cm-2
Embodiment 4
(1) CoMoO is prepared4Material
4mmol cobalt nitrate hexahydrate and 4mmol Sodium Molybdate Dihydrate are put into 80ml deionized water, are shifted after being sufficiently stirred Into the stainless steel cauldron of the polytetrafluoroethyllining lining of 100ml;It is then placed in vacuum oven and is heated to 150 DEG C, heat preservation 5 Hour, it is cooled to room temperature to reaction kettle, then by the reaction product of preparation by drying, and lower 350 DEG C of Ar atmosphere are filtered by vacuum Calcining 2h obtains CoMoO4Material
(2) CoMoO prepared4The electrochemical capacitance performance test of material.
As example 1, which is not described herein again.

Claims (3)

1. a kind of preparation method of three-dimensional porous Ni-Co film/CoMoO4 composite material, includes the following steps:
1) three-D nano-porous Ni-Co film is prepared
The NiCoMn alloy foil sheet for selecting 80-120 μ m-thick corrodes in ammonium sulfate and under Ar protection, after corrosion It is dried in vacuo after film cleaning is clean, obtains three-D nano-porous Ni-Co film.
2) three-dimensional porous Ni-Co film is prepared
Nanoporous Ni-Co film made from step 1 is put into quartz boat, then equipped with nanoporous Ni-Co film Quartz boat is placed in reaction tube burner hearth perimeter;It is first passed through a certain proportion of argon gas and hydrogen, furnace temperature is risen into 700- at this time 1000 DEG C, quartz boat is quickly moved to flat-temperature zone in the middle part of reaction tube after furnace temperature rises to assigned temperature, calcines 1- at this temperature 60 minutes;Quartz boat is quickly moved to outside burner hearth from flat-temperature zone in the middle part of reaction tube after calcining, under an ar atmosphere by sample It quickly is down to room temperature, is then taken out sample from tube furnace to get to the three-dimensional porous Ni-Co film of self-supporting.
3) three-dimensional porous Ni-Co film/CoMoO is prepared4Electrode material
The cobalt nitrate and sodium molybdate mixed liquor for preparing debita spissitudo, mixed liquor is moved in reaction kettle;Then step 2 is resulting The three-dimensional porous Ni-Co film of self-supporting is put into reaction kettle, and static 1~3 hour;It is then placed in vacuum oven and is heated to It 100-200 DEG C, reacts 3~8 hours, is cooled to room temperature to reaction kettle, the film in inner liner of reaction kettle is taken out, cleans and does It is dry;By film, 350 DEG C of calcining 2h obtain three-dimensional porous Ni-Co film/CoMoO under an ar atmosphere4Composite material.
2. preparation method according to claim 1, which is characterized in that in 0.5-2M ammonium sulfate and under Ar protection 50 DEG C of corrosion 15-25h.
3. preparation method according to claim 1, which is characterized in that according to 1mmol:1mmol:The proportion of 70-90ml, matches Cobalt nitrate and sodium molybdate mixed liquor processed.
CN201810507833.5A 2018-05-24 2018-05-24 Three-dimensional porous Ni-Co film/CoMoO4The preparation method of composite material Pending CN108831750A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810507833.5A CN108831750A (en) 2018-05-24 2018-05-24 Three-dimensional porous Ni-Co film/CoMoO4The preparation method of composite material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810507833.5A CN108831750A (en) 2018-05-24 2018-05-24 Three-dimensional porous Ni-Co film/CoMoO4The preparation method of composite material

Publications (1)

Publication Number Publication Date
CN108831750A true CN108831750A (en) 2018-11-16

Family

ID=64147355

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201810507833.5A Pending CN108831750A (en) 2018-05-24 2018-05-24 Three-dimensional porous Ni-Co film/CoMoO4The preparation method of composite material

Country Status (1)

Country Link
CN (1) CN108831750A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109950503A (en) * 2019-04-02 2019-06-28 吉林大学 A kind of CoMoOx/ carbon/sulphur composite nano materials preparation method, negative electrode of lithium ion battery and lithium ion half-cell

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103325999A (en) * 2013-05-22 2013-09-25 吉林大学 Preparation method of seamlessly integrated metal substrate/nanoporous metal/metal oxide composite electrode material, and application of compound electrode material
CN105217617A (en) * 2015-10-22 2016-01-06 天津大学 A kind of preparation method of three-D nano-porous Graphene
CN105448543A (en) * 2015-12-29 2016-03-30 东华大学 Preparation method for CoMoO4 nanostructure supercapacitor electrode material taking foam nickel as substrate
CN105719852A (en) * 2016-02-04 2016-06-29 天津大学 Preparation method for three-dimensional nano-porous graphene/manganese dioxide composite electrode material
CN105810450A (en) * 2016-03-10 2016-07-27 同济大学 Method for synthesizing CoMoO4 loaded on foamed nickel electrode material through solvothermal method
CN106025247A (en) * 2016-06-30 2016-10-12 天津工业大学 Flexible manometer porous metal foil electrode and preparation method thereof
CN107123554A (en) * 2016-02-25 2017-09-01 中国科学院苏州纳米技术与纳米仿生研究所 Flexible electrode, its preparation method and application
CN107502886A (en) * 2017-07-13 2017-12-22 天津大学 The preparation method of fabricated in situ sheet metal hydroxide/oxide composite
CN107644743A (en) * 2017-08-25 2018-01-30 天津大学 A kind of preparation method of the three-dimensional porous nitrogen-doped graphene of self-supporting-nickel hydroxide electrochemical capacitance electrode material

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103325999A (en) * 2013-05-22 2013-09-25 吉林大学 Preparation method of seamlessly integrated metal substrate/nanoporous metal/metal oxide composite electrode material, and application of compound electrode material
CN105217617A (en) * 2015-10-22 2016-01-06 天津大学 A kind of preparation method of three-D nano-porous Graphene
CN105448543A (en) * 2015-12-29 2016-03-30 东华大学 Preparation method for CoMoO4 nanostructure supercapacitor electrode material taking foam nickel as substrate
CN105719852A (en) * 2016-02-04 2016-06-29 天津大学 Preparation method for three-dimensional nano-porous graphene/manganese dioxide composite electrode material
CN107123554A (en) * 2016-02-25 2017-09-01 中国科学院苏州纳米技术与纳米仿生研究所 Flexible electrode, its preparation method and application
CN105810450A (en) * 2016-03-10 2016-07-27 同济大学 Method for synthesizing CoMoO4 loaded on foamed nickel electrode material through solvothermal method
CN106025247A (en) * 2016-06-30 2016-10-12 天津工业大学 Flexible manometer porous metal foil electrode and preparation method thereof
CN107502886A (en) * 2017-07-13 2017-12-22 天津大学 The preparation method of fabricated in situ sheet metal hydroxide/oxide composite
CN107644743A (en) * 2017-08-25 2018-01-30 天津大学 A kind of preparation method of the three-dimensional porous nitrogen-doped graphene of self-supporting-nickel hydroxide electrochemical capacitance electrode material

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109950503A (en) * 2019-04-02 2019-06-28 吉林大学 A kind of CoMoOx/ carbon/sulphur composite nano materials preparation method, negative electrode of lithium ion battery and lithium ion half-cell
CN109950503B (en) * 2019-04-02 2021-03-02 吉林大学 CoMoOxPreparation method of/carbon/sulfur composite nano material, lithium ion battery cathode and lithium ion half battery

Similar Documents

Publication Publication Date Title
Hao et al. A low crystallinity oxygen-vacancy-rich Co 3 O 4 cathode for high-performance flexible asymmetric supercapacitors
Zhu et al. Core-branched NiCo2S4@ CoNi-LDH heterostructure as advanced electrode with superior energy storage performance
Ruan et al. Nanostructured Ni compounds as electrode materials towards high-performance electrochemical capacitors
CN106129401B (en) Foamed nickel supported high surface roughness cobalt acid nickel nm wall of one kind and preparation method thereof
CN108461306B (en) A kind of multi-layer N doped carbon nanometer rod composite material and preparation method thereof
Gu et al. Anodic electrodeposition of a porous nickel oxide–hydroxide film on passivated nickel foam for supercapacitors
Kumar et al. Free-standing NiV 2 S 4 nanosheet arrays on a 3D Ni framework via an anion exchange reaction as a novel electrode for asymmetric supercapacitor applications
Zhao et al. Construction of CuO/Cu2O@ CoO core shell nanowire arrays for high-performance supercapacitors
Marichi et al. Nickel-shell assisted growth of nickel-cobalt hydroxide nanofibres and their symmetric/asymmetric supercapacitive characteristics
CN109637826B (en) Preparation method and application of cobaltosic oxide-nickel oxide/graphene foam composite electrode material
Maile et al. Electrochemical synthesis of binder-free interconnected nanosheets of Mn-doped Co3O4 on Ni foam for high-performance electrochemical energy storage application
CN108773859B (en) Vulcanized nano material and preparation method and application thereof
CN105448543A (en) Preparation method for CoMoO4 nanostructure supercapacitor electrode material taking foam nickel as substrate
CN105244191A (en) Manganese cobalt oxide porous nanometer sheet/foam nickel compound electrode material preparation method
CN108597896B (en) Preparation method and application of leaf-shaped cobalt phosphate nanosheet
CN107644743A (en) A kind of preparation method of the three-dimensional porous nitrogen-doped graphene of self-supporting-nickel hydroxide electrochemical capacitance electrode material
CN110980673B (en) Metal phosphide, preparation method thereof and application thereof in super capacitor
CN109616331A (en) A kind of hud typed nickel hydroxide nano piece/manganese cobalt/cobalt oxide combination electrode material and preparation method thereof
CN110592611A (en) Catalytic electrode and preparation method and application thereof
Choi et al. Metal-organic framework-derived cobalt oxide and sulfide having nanoflowers architecture for efficient energy conversion and storage
CN107032312A (en) A kind of preparation method of porous C oP electrode materials
CN106449138B (en) Carbon-coated cobalt molybdate mesh nano chip arrays material, preparation method and application
CN109545576A (en) The preparation method of nickel cobalt phosphorus-carbon-nickel hydroxide ternary composite electrode material
Liu et al. Novel electrochemical deposition of Co (CO3) 0.5 (OH)∙ 0.11 H2O nano-needles with folded umbrella-like architecture onto nickel foam for supercapacitors
CN110787824A (en) Preparation method and application of vanadium-doped transition metal nitride

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
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20181116