CN107285385A - A kind of metallicity 1T molybdenum disulfide nano sheet arrays and its preparation method and application - Google Patents

A kind of metallicity 1T molybdenum disulfide nano sheet arrays and its preparation method and application Download PDF

Info

Publication number
CN107285385A
CN107285385A CN201710533328.3A CN201710533328A CN107285385A CN 107285385 A CN107285385 A CN 107285385A CN 201710533328 A CN201710533328 A CN 201710533328A CN 107285385 A CN107285385 A CN 107285385A
Authority
CN
China
Prior art keywords
metallicity
molybdenum disulfide
preparation
substrate
nano sheet
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
CN201710533328.3A
Other languages
Chinese (zh)
Inventor
吴明红
湛晶
潘登余
吴宽
施文彦
徐刚
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.)
University of Shanghai for Science and Technology
Original Assignee
University of Shanghai for Science and Technology
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 University of Shanghai for Science and Technology filed Critical University of Shanghai for Science and Technology
Priority to CN201710533328.3A priority Critical patent/CN107285385A/en
Publication of CN107285385A publication Critical patent/CN107285385A/en
Pending legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01GCOMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G39/00Compounds of molybdenum
    • C01G39/06Sulfides
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B82NANOTECHNOLOGY
    • B82YSPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
    • B82Y30/00Nanotechnology for materials or surface science, e.g. nanocomposites
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B82NANOTECHNOLOGY
    • B82YSPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
    • B82Y40/00Manufacture or treatment of nanostructures
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06MTREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M11/00Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
    • D06M11/51Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with sulfur, selenium, tellurium, polonium or compounds thereof
    • D06M11/53Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with sulfur, selenium, tellurium, polonium or compounds thereof with hydrogen sulfide or its salts; with polysulfides
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/05Accumulators with non-aqueous electrolyte
    • H01M10/052Li-accumulators
    • H01M10/0525Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00Electrodes
    • H01M4/02Electrodes composed of, or comprising, active material
    • H01M4/36Selection of substances as active materials, active masses, active liquids
    • H01M4/58Selection of substances as active materials, active masses, active liquids of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy; of polyanionic structures, e.g. phosphates, silicates or borates
    • H01M4/581Chalcogenides or intercalation compounds thereof
    • H01M4/5815Sulfides
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01PINDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2002/00Crystal-structural characteristics
    • C01P2002/70Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data
    • C01P2002/72Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data by d-values or two theta-values, e.g. as X-ray diagram
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01PINDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2002/00Crystal-structural characteristics
    • C01P2002/80Crystal-structural characteristics defined by measured data other than those specified in group C01P2002/70
    • C01P2002/82Crystal-structural characteristics defined by measured data other than those specified in group C01P2002/70 by IR- or Raman-data
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01PINDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00Particle morphology
    • C01P2004/01Particle morphology depicted by an image
    • C01P2004/04Particle morphology depicted by an image obtained by TEM, STEM, STM or AFM
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01PINDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00Particle morphology
    • C01P2004/60Particles characterised by their size
    • C01P2004/62Submicrometer sized, i.e. from 0.1-1 micrometer
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01PINDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00Physical properties of inorganic compounds
    • C01P2006/40Electric properties
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06MTREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M2101/00Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
    • D06M2101/40Fibres of carbon
    • 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
    • Y02E60/10Energy storage using batteries

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Nanotechnology (AREA)
  • General Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Manufacturing & Machinery (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Materials Engineering (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Electrochemistry (AREA)
  • Composite Materials (AREA)
  • Textile Engineering (AREA)
  • Battery Electrode And Active Subsutance (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)

Abstract

The invention provides a kind of metallicity 1T molybdenum disulfide nano sheet arrays and its preparation method and application, comprise the following steps:Substrate is heat-treated, the substrate of functionalization is obtained;The substrate of functionalization, molybdate and sulfur-containing compound are subjected to solvent thermal reaction in a solvent, metallicity 1T molybdenum disulfide nano sheet arrays are obtained.The present invention is heat-treated to substrate first, improves substrate surface wettability, metallicity 1T molybdenum disulfide nano sheet arrays then can be obtained in substrate surface by a step solvent thermal reaction.Preparation method step that the present invention is provided is simple, cost is low, yield is high, meet environmental requirement;And the metallicity 1T molybdenum disulfide nano sheet arrays prepared have excellent storage lithium performance, having broad application prospects in lithium ion battery.

Description

A kind of metallicity 1T molybdenum disulfide nano sheet arrays and its preparation method and application
Technical field
The present invention relates to the technical field of energy storage material, more particularly to a kind of metallicity 1T molybdenum disulfide nano sheets array and Its preparation method and application.
Background technology
Transient metal sulfide is the material that Lithium-ion embeding is realized by conversion reaction, is held with higher theory Amount, but its cycle performance is poor.In all transient metal sulfides reported, the molybdenum disulfide with graphite-like structure Nano material is attracted attention due to the potential application in terms of catalysis, hydrogen storage material, li-ion electrode materials.
MoS2It is to be formed by connecting by middle one layer of Mo atom with two layers of S atom up and down by strong covalent bond in molecular layer, And then piled up between layers by weak van der Waals interaction.Molybdenum disulfide mainly has two kinds of crystalline phases, and a kind of is the Rhizoma Sparganii of stable state The 2H phases of rod structure, a kind of is the 1T phases of metastable octahedral structure.Wherein MoS2Common configuration be 2H phases, the configuration MoS2Semiconductor behavior is shown, the characteristics of conductive poor.1T-MoS2With the Atomic coordinate ring entirely different with 2H phases Border, shows and 2H-MoS2Entirely different electronic structure, shows metal sexual behaviour.
At present, the preparation method of metal phase 1T molybdenum disulfide is a lot, mainly there is alkali metal intercalation stripping method, beam bombardment Method, high-pressure process, noble metal electro transfer method etc., but these methods are generally higher to equipment requirement, and cost is high, is unfavorable for It is extensive to prepare and commercial applications.
The content of the invention
In view of this, present invention aims at provide a kind of metallicity 1T molybdenum disulfide nano sheet arrays and preparation method thereof And application.The preparation method step that the present invention is provided is simple, and cost is low, is that can obtain metallicity 1T by a step solvent thermal reaction Molybdenum disulfide nano sheet array, and obtained metallicity 1T molybdenum disulfide nano sheets array storage lithium excellent performance.
In order to realize foregoing invention purpose, the present invention provides following technical scheme:
The invention provides a kind of preparation method of metallicity 1T molybdenum disulfide nano sheet arrays, comprise the following steps:
Substrate is heat-treated, the substrate of functionalization is obtained;
The substrate of functionalization, molybdate and sulfur-containing compound are subjected to solvent thermal reaction in a solvent, metallicity 1T is obtained Molybdenum disulfide nano sheet array.
It is preferred that, the temperature of the heat treatment is 400~500 DEG C;The time of the heat treatment is 0.5~2h.
It is preferred that, the molybdate includes the one or more in sodium molybdate, potassium molybdate and ammonium molybdate.
It is preferred that, the sulfur-containing compound includes thiocarbamide and/or Cys.
It is preferred that, the amount ratio of the material of the molybdate and sulfur-containing compound is 1:2~5.
It is preferred that, the solvent includes one or more of mixtures in water, DMF and ethanol.
It is preferred that, the amount ratio of the volume of the solvent and the material of molybdate is 60~80mL:1mol.
It is preferred that, the temperature of the solvent thermal reaction is 180~210 DEG C;The time of the solvent thermal reaction be 12~ 24h。
Present invention also offers metallicity 1T molybdenum disulfide nano sheet arrays prepared by preparation method described in such scheme.
Present invention also offers metallicity 1T molybdenum disulfide nano sheet arrays described in a kind of such scheme in lithium ion battery In application.
The invention provides a kind of preparation method of metallicity 1T molybdenum disulfide nano sheet arrays, comprise the following steps:Will Substrate is heat-treated, and obtains the substrate of functionalization;The substrate of functionalization, molybdate and sulfur-containing compound are carried out in a solvent Solvent thermal reaction, obtains metallicity 1T molybdenum disulfide nano sheet arrays.The preparation method that the present invention is provided is carried out to substrate first Heat treatment, improves substrate surface wettability, metallicity 1T then can be obtained in substrate surface by a step solvent thermal reaction Molybdenum disulfide nano sheet array.Preparation method step that the present invention is provided is simple, cost is low, yield is high, meet environmental requirement.
The invention provides metallicity 1T molybdenum disulfide nano sheet arrays prepared by preparation method described in such scheme.This hair The metallicity 1T molybdenum disulfide nano sheet array vertical-growths of bright preparation are evenly distributed in substrate, and interlamellar spacing is larger, has Excellent storage lithium performance.
The invention provides the answering in lithium ion battery of metallicity 1T molybdenum disulfide nano sheet arrays described in such scheme With.Embodiment result shows that the metallicity 1T molybdenum disulfide nano sheet arrays for preparing the present invention are assembled into after lithium ion battery, The reversible capacity of battery is more than 1000mAh/g under 1A/g electric current, and 140 capacity of discharge and recharge remain to be maintained at 800mAh/g More than.
Brief description of the drawings
Fig. 1 is CFC, 1T-MoS in the embodiment of the present invention 12/ CFC and 2H-MoS2/ CFC XRD spectrum;
Fig. 2 is CFC and 1T-MoS in the embodiment of the present invention 12/ CFC Raman collection of illustrative plates;
Fig. 3 is the TEM collection of illustrative plates of metallicity 1T molybdenum disulfide nano sheet arrays prepared by the embodiment of the present invention 1;
Fig. 4 is the cycle performance test chart of the lithium ion half-cell of the embodiment of the present invention 4.
Embodiment
The invention provides a kind of preparation method of metallicity 1T molybdenum disulfide nano sheet arrays, comprise the following steps:
Substrate is heat-treated, the substrate of functionalization is obtained;
The substrate of functionalization, molybdate and sulfur-containing compound are subjected to solvent thermal reaction in a solvent, metallicity 1T is obtained Molybdenum disulfide nano sheet array.
Substrate is heat-treated, the substrate of functionalization is obtained.In the present invention, the substrate is preferably carbon cloth, carbon paper And nickel foam;The present invention does not have particular/special requirement to the shape and area of the substrate, and substrate can be set according to actual needs Shape and area;The present invention knows the base in source using those skilled in the art to the no particular/special requirement in source of the substrate Bottom, such as commercially available carbon cloth, carbon paper and nickel foam;In the present invention, the model of the commercially available carbon cloth is preferably WOS1002.
The present invention is preferably washed and dried successively to substrate first, is then heat-treated.In the present invention, it is described Washing is preferably supersound washing;The supersound washing is preferably washed including ultrasonic acetone successively, ultrasonic ethanol is washed and ultrasound washing;Institute That state the time independence that ultrasonic acetone is washed, ultrasonic ethanol is washed and ultrasound is washed is preferably 10~20min, more preferably 15min;Institute That state the frequency independence that ultrasonic acetone is washed, ultrasonic ethanol is washed and ultrasound is washed is preferably 35~53Hz, more preferably 40~50Hz; The present invention removes the impurity such as dust, organic matter that substrate surface is present by washing.
After the washing, the present invention is preferably by substrate drying.The present invention is not special to the temperature and time of the drying It is required that, the water of substrate surface can be dried complete.
After the drying, dried substrate is heat-treated by the present invention, obtains the substrate of functionalization.In the present invention In, the temperature of the heat treatment is preferably 400~500 DEG C, more preferably 450 DEG C;The time of the heat treatment is preferably 0.5~ 2h, more preferably 1h;The heat treatment is preferably aerobic calcination processing;The present invention does not have to the specific method for carrying out aerobic calcining Particular/special requirement, using aerobic method for calcinating well known to those skilled in the art, in a particular embodiment of the present invention, preferably Substrate is subjected to aerobic calcining in atmosphere.In the present invention, heat treatment can increase the oh group of substrate surface, increase base The wettability at bottom, makes metallicity 1T molybdenum disulfide nano sheets array be easier in substrate surface generation.
After the substrate for obtaining functionalization, the present invention is by the substrate of the functionalization, molybdate and sulfur-containing compound in solvent Middle carry out solvent thermal reaction, obtains metallicity 1T molybdenum disulfide nano sheet arrays.In the present invention, the molybdate is preferably included One or more of mixtures in sodium molybdate, potassium molybdate and ammonium molybdate;When the molybdate is mixture, the present invention is to mixing The mass ratio of various molybdates does not have particular/special requirement in thing, using arbitrary proportion;The molybdate is preferably molybdic acid hydrate Salt;The sulfur-containing compound preferably includes thiocarbamide and/or Cys;The amount of the material of the molybdate and sulfur-containing compound Than being preferably 1:2~5, more preferably 1:3~4.
In the present invention, the solvent preferably includes one or more of in water, DMF and ethanol The mixture or water and the mixture of ethanol of mixture, more preferably water and DMF;The water and N, N- bis- The mixture reclaimed water of NMF and the volume ratio of N,N-dimethylformamide are preferably 1:1~2, more preferably 1:1.5;Institute It is preferably 1 to state water and the mixture reclaimed water of ethanol and the volume ratio of ethanol:1~2, more preferably 1:1.5;The volume of the solvent Amount ratio with the material of molybdate is preferably 60~80mL:1mol, more preferably 70mL:1mol.
In the present invention, the temperature of the solvent thermal reaction is preferably 180~210 DEG C, more preferably 190~200 DEG C;Institute The time for stating solvent thermal reaction is preferably 12~24h, more preferably 14~20h, most preferably 16~18h.The present invention is to solvent The device that thermal response is used does not have particular/special requirement, using device well known to those skilled in the art, specific as hydro-thermal is anti- Answer kettle.
The present invention preferably mixes molybdate, sulfur-containing compound and solvent, then gained mixed solution and substrate are added into water Solvent thermal reaction is carried out in thermal response kettle.The present invention is preferably mixed under agitation, and the rotating speed of the stirring is preferably 100~300rpm, more preferably 200rpm;The time of the stirring is preferably 20~40min, more preferably 30min.The present invention Molybdate and sulfur-containing compound are completely dissolved by stirring.
In a particular embodiment of the present invention, preferably molybdate is dissolved in a small amount of water, obtains molybdate solution, then Sulfur-containing compound is added and dissolved in molybdate solution, solvent is eventually adding, obtains mixed solution.
The present invention can generate metallicity 1T molybdenum disulfide nano sheet arrays by a step solvent thermal reaction in substrate surface, And reaction temperature is low, energy consumption is low.
After the solvent thermal reaction, reaction solution is preferably naturally cooled to room temperature by the present invention, is then separated, washed successively Wash and dry, obtain being grown in the metallicity 1T molybdenum disulfide nano sheet arrays of substrate surface.The side that the present invention is used to separation Method does not have particular/special requirement, using separation method well known to those skilled in the art, specific as filtered;It is of the present invention Washing is preferably to wash, and the present invention does not have particular/special requirement to the specific method of washing, can will be attached to nano-chip arrays surface Solvent and unreacted raw material remove it is clean;The present invention does not have particular/special requirement, energy to the temperature and time of the drying Enough solvent seasonings by nano-chip arrays surface are complete.
The invention provides metallicity 1T molybdenum disulfide nano sheet arrays prepared by preparation method described in such scheme.This hair The metallicity 1T molybdenum disulfide nano sheet array vertical-growths of bright preparation are evenly distributed in substrate, good crystallinity, with excellent Different storage lithium performance.
Present invention also offers metallicity 1T molybdenum disulfide nano sheet arrays described in a kind of such scheme in lithium ion battery In application.The present invention does not have to concrete application method of the metallicity 1T molybdenum disulfide nano sheet arrays in lithium ion battery There is particular/special requirement, applied using method well known to those skilled in the art.The metallicity 1T molybdenum disulfide that the present invention is provided Nano-chip arrays storage lithium ability is strong, and electric conductivity is good, is flexible electrode, has wide application in lithium ion battery.
With reference to embodiment to metallicity 1T molybdenum disulfide nano sheet arrays for providing of the present invention and preparation method thereof and Using being described in detail, but they can not be interpreted as limiting the scope of the present invention.
Embodiment 1
Carbon cloth (CFC) is cut into area for 1.13cm2Disk, with acetone, ethanol, water distinguish supersound washing 15min, so After dry;
By the 450 DEG C of calcination processing 1h in atmosphere of the carbon cloth after drying, the carbon cloth of functionalization is obtained;
Sodium molybdate dihydrate 0.5mol and Cys 1.25mol are dissolved in 50mL water and DMF mixed solvent (water and DMF volume ratio are 1:1.5) in, stirring 30min dissolves it;
Gained reaction solution is added in the polytetrafluoroethylliner liner that volume is 80mL, inner bag and is put into a piece of functionalization carbon cloth Disk, is transferred in hydrothermal reaction kettle the insulation reaction 12h at 200 DEG C, then natural cooling, separates, washs, is dried to obtain length The carbon cloth of full metallicity 1T phase molybdenum disulfide nano sheet arrays.
Using X-ray diffraction method to carbon cloth (CFC), be grown in the metallicity 1T phases molybdenum disulfide nano sheets battle arrays of carbon cloth surfaces Arrange (1T-MoS2/ CFC) analyzed, while the molybdenum disulfide nano sheet array to being changed into 2H phases by 700 DEG C of argon annealeds (2H-MoS2/ CFC) XRD analysis are carried out, acquired results are as shown in Figure 1;According to Fig. 1 as can be seen that three samples all contain carbon materials Expect distinctive 002 peak (25.6 °) and 004 peak (43 °), matched with carbon substrate;For 2H-MoS2/ CFC, its 2 θ= Peak at 13.92 °, 33.12 °, 39.12 °, 43.92 ° and 58.60 ° corresponds to (002) of 2H phase molybdenum disulfide, (100), (103), the XRD peak values in (006) and (110) face;For 1T-MoS2/ CFC, it is relative to 2H-MoS2Due to interlayer for/CFC Away from increase and low-temp reaction crystallinity is relatively weak, except due to interlamellar spacing increase and offset the characteristic peak of 1T phases 002 and 004, Other peak values are not obvious.XRD spectrum shows that the molybdenum disulfide array of the present embodiment synthesis is metallicity 1T phase curing really Molybdenum nano-chip arrays.
Using Raman spectrometers to carbon cloth carbon cloth (CFC), be grown in the metallicity 1T phase molybdenum disulfide nanos of carbon cloth surfaces Chip arrays (1T-MoS2/ CFC) to be analyzed, gained Raman collection of illustrative plates is as shown in Figure 2;According to Fig. 2 as can be seen that two samples all Containing the distinctive G peaks of carbon material and D peaks, matched with carbon substrate;And 1T-MoS2/ CFC contains the feature of 1T phase molybdenum disulfide Peak, further proves that the molybdenum disulfide array that the present embodiment is obtained is metallicity 1T phase molybdenum disulfide nano sheet arrays really.
Gained molybdenum disulfide nano sheet array is observed using transmission electron microscope, gained TEM is schemed as shown in figure 3, in Fig. 3 (a) be when multiplication factor is 40000 TEM figure, (b) multiplication factor be 80000 when TEM figure, (c) is that multiplication factor is TEM figures when 100000, (d) is the selected diffraction figure of molybdenum disulfide;According to Fig. 3 it can be seen that molybdenum disulfide nano sheet distribution is equal Even, size is about 150~200nm, and interlamellar spacing is about 0.82-0.91nm, compared with 2H phase molybdenum disulfide nano sheet arrays, interlayer Away from increase, this is consistent with the interlamellar spacing calculated by XRD data.
Embodiment 2
Nickel foam is cut into area for 1.13cm2Disk, with acetone, ethanol, water distinguish supersound washing 15min, then Dry;
By the 400 DEG C of calcination processing 1.5h in atmosphere of the carbon cloth after drying, the nickel foam of functionalization is obtained;
Sodium molybdate dihydrate 0.5mol and Cys 1.0mol are dissolved in 30mL water, stirring 30min makes it Dissolving;
Gained reaction solution is added in the polytetrafluoroethylliner liner that volume is 80mL, inner bag and is put into a piece of functionalization foam Nickel disk, is transferred in hydrothermal reaction kettle the insulation reaction 24h at 180 DEG C, then natural cooling, separates, washs, is dried to obtain Cover with the nickel foam of metallicity 1T phase molybdenum disulfide nano sheet arrays.
Embodiment 3
Carbon cloth is cut into area for 1.13cm2Disk, distinguish supersound washing 15min, Ran Hougan with acetone, ethanol, water It is dry;
By the 500 DEG C of calcination processing 1h in atmosphere of the carbon cloth after drying, the carbon cloth of functionalization is obtained;
Potassium molybdate dihydrate 0.5mol and thiocarbamide 2.5mol are dissolved in 30mL water, stirring 30min dissolves it;
Gained reaction solution is added in the polytetrafluoroethylliner liner that volume is 80mL, inner bag and is put into a piece of functionalization carbon cloth Disk, is transferred in hydrothermal reaction kettle the insulation reaction 15h at 210 DEG C, then natural cooling, separates, washs, is dried to obtain length The carbon cloth of full metallicity 1T phase molybdenum disulfide nano sheet arrays.
Embodiment 4
The carbon cloth for covering with metallicity 1T phase molybdenum disulfide nano sheet arrays prepared by 2 embodiments 1 is assembled into button lithium Ion half-cell, is tested the cyclical stability of half-cell, acquired results are as shown in Figure 4;
According to Fig. 4 as can be seen that the lithium ion half-cell of assembling reversible capacity under 1A/g electric current is more than 1000mAh/ G, and 140 capacity of discharge and recharge remain to be maintained at more than 800mAh/g, and coulombic efficiency of the half-cell in cyclic process is 100%.The result show the present invention provide metallicity 1T phase molybdenum disulfide nano sheets array storage lithium performance it is very good, lithium from Sub- field of batteries has good application prospect.
As seen from the above embodiment, the present invention can obtain metallicity 1T bis- by a step solvent thermal reaction in substrate surface Molybdenum sulfide nano-chip arrays, preparation method step is simple, cost is low, yield is high, meet environmental requirement, and the metallicity 1T prepared Molybdenum disulfide nano sheet array has excellent storage lithium performance.
As seen from the above embodiment, it is only the preferred embodiment of the present invention that the present invention is described above, it is noted that for For those skilled in the art, under the premise without departing from the principles of the invention, can also make it is some improvement and Retouching, these improvements and modifications also should be regarded as protection scope of the present invention.

Claims (10)

1. a kind of preparation method of metallicity 1T molybdenum disulfide nano sheet arrays, comprises the following steps:
Substrate is heat-treated, the substrate of functionalization is obtained;
The substrate of functionalization, molybdate and sulfur-containing compound are subjected to solvent thermal reaction in a solvent, the sulphur of metallicity 1T bis- is obtained Change molybdenum nano-chip arrays.
2. preparation method according to claim 1, it is characterised in that the temperature of the heat treatment is 400~500 DEG C;Institute The time for stating heat treatment is 0.5~2h.
3. preparation method according to claim 1, it is characterised in that the molybdate includes sodium molybdate, potassium molybdate and molybdenum One or more in sour ammonium.
4. preparation method according to claim 1, it is characterised in that the sulfur-containing compound includes thiocarbamide and/or L- half Cystine.
5. the preparation method according to claim 1 or 3 or 4, it is characterised in that the thing of the molybdate and sulfur-containing compound The amount ratio of matter is 1:2~5.
6. preparation method according to claim 1, it is characterised in that the solvent includes water, DMF With one or more of mixtures in ethanol.
7. preparation method according to claim 1, it is characterised in that the volume of the solvent and the amount of the material of molybdate Than for 60~80mL:1mol.
8. preparation method according to claim 1, it is characterised in that the temperature of the solvent thermal reaction is 180~210 ℃;The time of the solvent thermal reaction is 12~24h.
9. metallicity 1T molybdenum disulfide nano sheet arrays prepared by preparation method described in claim 1~8 any one.
10. application of the metallicity 1T molybdenum disulfide nano sheet arrays in lithium ion battery described in claim 9.
CN201710533328.3A 2017-07-03 2017-07-03 A kind of metallicity 1T molybdenum disulfide nano sheet arrays and its preparation method and application Pending CN107285385A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710533328.3A CN107285385A (en) 2017-07-03 2017-07-03 A kind of metallicity 1T molybdenum disulfide nano sheet arrays and its preparation method and application

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710533328.3A CN107285385A (en) 2017-07-03 2017-07-03 A kind of metallicity 1T molybdenum disulfide nano sheet arrays and its preparation method and application

Publications (1)

Publication Number Publication Date
CN107285385A true CN107285385A (en) 2017-10-24

Family

ID=60098550

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710533328.3A Pending CN107285385A (en) 2017-07-03 2017-07-03 A kind of metallicity 1T molybdenum disulfide nano sheet arrays and its preparation method and application

Country Status (1)

Country Link
CN (1) CN107285385A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108217729A (en) * 2017-12-14 2018-06-29 三峡大学 A kind of molybdenum disulfide array electrode material of vertical-growth and preparation method thereof
CN108314084A (en) * 2018-02-09 2018-07-24 西北工业大学 A kind of preparation method of metal phase molybdenum disulfide nano ball
CN108511205A (en) * 2018-04-19 2018-09-07 信阳师范学院 A kind of preparation method of the metal phase flexibility molybdenum disulfide electrode material for super capacitor of (002) crystal face growth
CN108893974A (en) * 2018-06-05 2018-11-27 湖北大学 One type petal molybdenum disulfide film and its preparation method and application
CN110182848A (en) * 2019-06-11 2019-08-30 上海大学 A kind of high-temperature stability 1T phase molybdenum disulfide nano structure and its preparation method and application
CN110510679A (en) * 2019-08-26 2019-11-29 北京科技大学 Nanometer 1T phase molybdenum disulfide/curing nickel composite nano materials preparation method
CN112290003A (en) * 2020-11-04 2021-01-29 齐鲁工业大学 Molybdenum disulfide titanium dioxide cathode material of lithium ion battery and preparation method and application thereof
CN113716671A (en) * 2021-08-24 2021-11-30 华南师范大学 Method for treating wastewater based on 1T-phase nano molybdenum disulfide and preparation method of 1T-phase nano molybdenum disulfide

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
MINGHONG WU等: "Metallic 1T MoS2 nanosheet arrays vertically grown on activated carbonfiber cloth for enhanced Li-ion storage performance", 《JOURNAL OF MATERIALS CHEMISTRY A》 *

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108217729A (en) * 2017-12-14 2018-06-29 三峡大学 A kind of molybdenum disulfide array electrode material of vertical-growth and preparation method thereof
CN108314084B (en) * 2018-02-09 2019-12-20 西北工业大学 Preparation method of metal phase molybdenum disulfide nanospheres
CN108314084A (en) * 2018-02-09 2018-07-24 西北工业大学 A kind of preparation method of metal phase molybdenum disulfide nano ball
CN108511205A (en) * 2018-04-19 2018-09-07 信阳师范学院 A kind of preparation method of the metal phase flexibility molybdenum disulfide electrode material for super capacitor of (002) crystal face growth
CN108511205B (en) * 2018-04-19 2020-06-05 信阳师范学院 Preparation method of (002) crystal face grown metal phase flexible molybdenum disulfide supercapacitor electrode material
CN108893974A (en) * 2018-06-05 2018-11-27 湖北大学 One type petal molybdenum disulfide film and its preparation method and application
CN108893974B (en) * 2018-06-05 2020-07-24 湖北大学 Petal-like molybdenum disulfide film and preparation method and application thereof
CN110182848A (en) * 2019-06-11 2019-08-30 上海大学 A kind of high-temperature stability 1T phase molybdenum disulfide nano structure and its preparation method and application
CN110510679A (en) * 2019-08-26 2019-11-29 北京科技大学 Nanometer 1T phase molybdenum disulfide/curing nickel composite nano materials preparation method
CN112290003A (en) * 2020-11-04 2021-01-29 齐鲁工业大学 Molybdenum disulfide titanium dioxide cathode material of lithium ion battery and preparation method and application thereof
CN112290003B (en) * 2020-11-04 2021-07-23 齐鲁工业大学 Molybdenum disulfide titanium dioxide cathode material of lithium ion battery and preparation method and application thereof
CN113716671A (en) * 2021-08-24 2021-11-30 华南师范大学 Method for treating wastewater based on 1T-phase nano molybdenum disulfide and preparation method of 1T-phase nano molybdenum disulfide
CN113716671B (en) * 2021-08-24 2023-01-24 华南师范大学 Method for treating wastewater based on 1T-phase nano molybdenum disulfide and preparation method of 1T-phase nano molybdenum disulfide

Similar Documents

Publication Publication Date Title
CN107285385A (en) A kind of metallicity 1T molybdenum disulfide nano sheet arrays and its preparation method and application
CN105819507B (en) A kind of flower-shaped VS of nanometer sheet self assembly micron2Preparation method and application
CN108735522B (en) CoNiO2/MXene composite material and preparation method and application thereof
CN102130334B (en) Graphene-based nano iron oxide composite material and preparation method thereof
CN109817918B (en) Sulfur-doped MXene composite material and preparation method and application thereof
CN108735984A (en) A kind of preparation method of molybdenum disulfide/carbonization titanium composite material
CN106229503B (en) A kind of preparation method of nickel oxide/graphene nanocomposite material, negative electrode of lithium ion battery, lithium ion battery
CN106057478B (en) In the preparation method and applications of the coarse CuS nanosheet array of nickel foam Surface Creation
CN103441253B (en) A kind of Graphene/ZnO/ polyaniline composite material and its preparation method and application
Ru et al. Carbon nanotubes modified for ZnCo2O4 with a novel porous polyhedral structure as anodes for lithium ion batteries with improved performances
CN102530930B (en) A kind of method of preparing graphene by electrochemical stripping
CN106952737A (en) A kind of preparation method of tungsten disulfide flake nano material
CN105161692A (en) Preparation method for C-MoS2 composite material and products and electrochemical application thereof
CN110697794B (en) Cobalt sulfide/g-C with two-dimensional hollow nanosheet structure3N4Composite electrode material and preparation method thereof
CN108878159A (en) 2D/1D structure molybdenum disulfide/bismuth sulfide nano composite material and preparation method thereof
CN105609772A (en) Method for preparing N, S-codoped graphene cathode material for lithium-sulfur battery by microwave method
CN106450193A (en) Nickel sulfide/graphene composite material and preparation method and application thereof
CN110518235A (en) A kind of three nickel electrode of self-supporting curing and its preparation method and application
CN112736235A (en) Biomass/carbon nanotube induced Fe3O4Nano composite material and application thereof as negative electrode material of lithium ion battery
CN109301231B (en) MoO (MoO)3Composite carbon dot lithium ion battery anode material and preparation method thereof
CN113410459B (en) Embedded MoS x Three-dimensional ordered macroporous graphene carbon material of nanosheet, preparation and application
CN107195884B (en) A kind of lithium metasilicate doped graphene lithium ion battery negative material and preparation method thereof
CN112467069A (en) Battery negative electrode material and preparation method and application thereof
CN107834045A (en) A kind of preparation method of bar-shaped carbon coating cobalt molybdate and its application in lithium ion battery
CN104124435A (en) Multi-edge MoS2 nanosheet/graphene electrochemical sodium storage composite electrode and preparation method

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
RJ01 Rejection of invention patent application after publication
RJ01 Rejection of invention patent application after publication

Application publication date: 20171024