CN108658128A - A kind of MoS with hierarchical structure2The preparation method of micro-nano ball - Google Patents

A kind of MoS with hierarchical structure2The preparation method of micro-nano ball Download PDF

Info

Publication number
CN108658128A
CN108658128A CN201810873431.7A CN201810873431A CN108658128A CN 108658128 A CN108658128 A CN 108658128A CN 201810873431 A CN201810873431 A CN 201810873431A CN 108658128 A CN108658128 A CN 108658128A
Authority
CN
China
Prior art keywords
mos
micro
reaction
preparation
pam
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.)
Granted
Application number
CN201810873431.7A
Other languages
Chinese (zh)
Other versions
CN108658128B (en
Inventor
王开新
韩成良
周正
赵世维
卞正东
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.)
Hefei China Airlines Nanotechnology Development Co Ltd
Original Assignee
Hefei China Airlines Nanotechnology Development Co Ltd
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 Hefei China Airlines Nanotechnology Development Co Ltd filed Critical Hefei China Airlines Nanotechnology Development Co Ltd
Priority to CN201810873431.7A priority Critical patent/CN108658128B/en
Publication of CN108658128A publication Critical patent/CN108658128A/en
Application granted granted Critical
Publication of CN108658128B publication Critical patent/CN108658128B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G39/00—Compounds of molybdenum
    • C01G39/06—Sulfides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B82—NANOTECHNOLOGY
    • B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
    • B82Y40/00—Manufacture or treatment of nanostructures
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2002/00—Crystal-structural characteristics
    • C01P2002/70—Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data
    • C01P2002/72—Crystal-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
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/01—Particle morphology depicted by an image
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/30—Particle morphology extending in three dimensions
    • C01P2004/32—Spheres
    • C01P2004/34—Spheres hollow

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Nanotechnology (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Manufacturing & Machinery (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)

Abstract

A kind of MoS with hierarchical structure2The preparation method of micro-nano ball is related to the preparing technical field of micro-nanometer structural material.MoS with hierarchical structure is prepared using hydro-thermal reaction2Sulphur source and molybdenum source are added in polyacrylamide (PAM) aqueous solution at room temperature, are uniformly mixing to obtain reaction precursor liquid by micro-nano ball；Reaction precursor liquid is transferred to progress hydro-thermal reaction in reaction kettle and can be obtained MoS2Micro-nanometer structural material.The present invention is molybdenum source and polyacrylamide (PAM) template contral agent using thioacetamide or thiocarbamide as sulphur source, sodium molybdate or ammonium molybdate, and the MoS with hierarchical structure has successfully been prepared using simple hydro-thermal method2Micro-nano ball.The present invention realizes MoS2The shaping of particle is the MoS of hierarchical structure2The preparation of material provides a kind of new method.Preparation method of the present invention have it is easy to operate, of low cost, meanwhile, the product amount of acquisition is big.

Description

A kind of MoS with hierarchical structure2The preparation method of micro-nano ball
Technical field
The present invention relates to the preparing technical field of micro-nanometer structural material, it is specifically related to a kind of with hierarchical structure MoS2The preparation method of micro-nano ball.
Background technology
The narrow band gap MoS of nanoscale2(Eg~1.29eV) there is layer structure identical with graphene, there is stabilization The advantages that chemical property, high specific surface area and good catalytic performance.Its unique physical and chemical properties makes MoS2Moistening Sliding field, catalytic field and electrochemical field etc. are widely used.
Nanometer MoS2Preparation method, usually mainly have Physical and hydro-thermal method two major classes.Physical is to utilize mechanical grinding The means such as mill and high-energy physics are to block MoS2It crushes, refine to obtain the MoS of nanoscale2.Hydro-thermal method is usually with sulphur Urea and molybdate etc. prepare a nanometer MoS for raw material2.Two methods are compared to respectively with characteristic and advantage and disadvantage.Physical preparation is received Rice MoS2Powder has many advantages, such as that principle is simple and yield is high, but this method energy consumption is larger, the MoS of acquisition2Grain shape difficulty control System.The nanometer MoS that hydro-thermal method obtains2Form is usually relatively regular, but needs to introduce some forms control reagent.Micro nano structure material Material due to large-size and stability, being easier to disperse and detach in use.Meanwhile in micro-nanometer structural material There are several nano structured units again, therefore there are some nano effects again.Therefore, micro-nanometer structural material is with micron-scale The advantage of material and nano material respectively, in recent years, investigation of materials person are studied various micro-nanometer structural materials and are reported very much.
Polyacrylamide (PAM) is a kind of linear water soluble polymer polymer, usually can be used as effective flocculant, increasing Thick dose, the drag reducer etc. of paper strengthening agent and liquid, are used widely in fields such as water process, papermaking and petrochemical industries. The present invention is with polyacrylamide (PAM) for molecular template, thioacetamide (TAA) or thiocarbamide and molybdate (Na2MoO4·2H2O Or (NH4)2MoO4·2H2O it is) raw material, the MoS with hierarchical structure has successfully been prepared using simple hydro-thermal method2Micro-nano ball. This method have many advantages, such as using raw material it is few, it is of low cost and obtain product form it is controllable, it is expected to be used for actual production.
Invention content
The present invention prepares nanometer MoS for having some2Shortcoming in the presence of technology in sulphur source, molybdenum source and is gathered The MoS with hierarchical structure has successfully been obtained in the water solution system that acrylamide (PAM) is constituted by one step of hydro-thermal method2Micro-nano Rice ball.The method has easy to operate, of low cost and advantages of environment protection, to prepare the MoS of hierarchical structure2Provide one The easy method of kind.
To achieve the goals above, the technical solution adopted in the present invention is：A kind of MoS with hierarchical structure2Micro-nano The preparation method of rice ball, using thioacetamide or thiocarbamide as sulphur source, using sodium molybdate or ammonium molybdate as molybdenum source, with polyacrylamide (PAM) it is template contral agent, the MoS with hierarchical structure is prepared using hydro-thermal reaction2Micro-nano ball.
As the optimal technical scheme of preparation method of the present invention, preparation method include reaction precursor liquid preparation and hydro-thermal it is anti- Two processes are answered, are as follows：
1), at room temperature, 2~4g sulphur sources and 0.2~0.6g molybdenum sources are added to the polypropylene of a concentration of 0.1-3g/L of 100mL In amide (PAM) aqueous solution, it is uniformly mixing to obtain reaction precursor liquid；
2) reaction precursor liquid progress 6~48h of hydro-thermal reaction at 180~200 DEG C, is transferred in reaction kettle to can be obtained MoS2Micro-nanometer structural material.
In the preparation method, in CH4N2S-MoO4 2--PAM-H2In O reaction systems, regular shape will be obtained after hydro-thermal reaction The MoS of looks2Microballoon.In CH3CSNH2-MoO4 2--PAM-H2In O reaction systems, higher sphericity will be obtained after hydro-thermal reaction MoS2Microballoon.
The present invention is molybdenum source and polyacrylamide using thioacetamide or thiocarbamide as sulphur source, sodium molybdate or ammonium molybdate (PAM) MoS with hierarchical structure has successfully been prepared in template contral agent using simple hydro-thermal method2Micro-nano ball.With existing system Preparation Method is compared, and the present invention has further the advantage that：
1) the present invention realizes MoS2The shaping of particle is the MoS of hierarchical structure2The preparation of material provides a kind of new Method.
2) the method for the present invention has easy to operate, of low cost, meanwhile, the product amount of acquisition is big.
Description of the drawings
Fig. 1 is the form that product is obtained in embodiment 1, chemical composition and structure analysis；
Fig. 2 is influence of different polyacrylamide (PAM) dosages to product morphology in embodiment 2；
Fig. 3 is influence of the differential responses time to product morphology in embodiment 3.
Specific implementation mode
With reference to embodiments with attached drawing to the MoS with hierarchical structure of the present invention2The preparation method of micro-nano ball is made Go out to be discussed further.Structure, the form performance of the method for the present invention products therefrom be respectively adopted X-ray powder diffraction (XRD, D3500 it) characterizes and analyzes with field emission scanning electron microscope (FE-SEM, SU8010).
Embodiment 1
MoS with hierarchical structure2The preparation and representation of micro-nano ball：
Preparation method mainly includes two processes of preparation and hydro-thermal reaction of reaction precursor liquid, is as follows：
1), at room temperature, 3g thioacetamides and 0.4g sodium molybdates are added to the polyacrylamide of a concentration of 0.1g/L of 100mL In amine (PAM) aqueous solution, it is uniformly mixing to obtain reaction precursor liquid；
2) reaction precursor liquid, is transferred in reaction kettle the progress hydro-thermal reaction at 180 DEG C and can be obtained MoS for 24 hours2It is micro-nano Structural material.
Fig. 1 a figures are the SEM entirety patterns for preparing product molybdenum disulfide, are the distributions of molybdenum disulfide particles macroscopic view, obtained MoS2Mainly exist with balled form, obtained MoS2Sphericity is very high, and reunion lesser extent, particle size is relatively uniform, works as handle Smooth film can be obtained in plane drawout in the mos2 microsphere of gained, has good application prospect in lubricating area.It is logical The polyacrylamide (PAM) that 0.1g/L is added is crossed, after reaction for 24 hours, the sphericity of molybdenum disulfide is greatly improved.Fig. 1 b In be to take local distribution, compare the size of mark, the particle size that can obtain molybdenum disulfide is about 1.5 μm or so.Molybdenum disulfide Inside there is layered structure, be to be interwoven by the pleated sheet of nanometer scale, each lamellar spacing is that 5nm is left The right side, grain size are more uniform.It is that ingredient characterization, its faintly visible lamellar structure, the master of microballoon are carried out to single product in Fig. 1 c It is Mo, S, C to want ingredient.Fig. 1 d are the X diffraction patterns of molybdenum disulfide, are indexed using standard powder diffraction card PDF#170744.
Embodiment 2
Different polyacrylamide dosages are to MoS2The influence of particulate form：
The present embodiment use two groups of experiments, do not add respectively polyacrylamide (PAM), excessive addition polyacrylamide (PAM) (a concentration of 3g/L), other conditions are the same as embodiment 1.
Fig. 2 a expressions are not added with the form of obtained product molybdenum disulfide after polyacrylamide (PAM), and grain diameter is not advised Then, different, agglomeration is very serious.After excessive polyacrylamide (PAM) (a concentration of 3g/L) is added, such as Fig. 2 b, Although spherical molybdenum disulfide can be obtained, products therefrom pattern is not that regularity is very high, and anticipation is not achieved.Work as polypropylene For the dosage of amide (PAM) in 0.01-0.3g/100mL, the shape characteristic of gained molybdenum disulfide is more excellent.
Based on above-mentioned experimental result, it is believed that MoS2The forming process of microballoon is as follows：First, it generates and receives in a kettle The MoS of rice stratiform2, then, under the action of polyacrylamide (PAM) template, it is self-assembly of molybdenum disulfide micro-nano ball.On It states and is indicated with formula (1).
Mo4++2S2-→MoS2 (1)
It should be noted that a certain amount of polyacrylamide (PAM) present in reaction system, plays the work of template With making platelike molybdenumdisulfide be assembled into micro-nano ball, obtain MoS2Micro-nano ball.
Embodiment 3
The differential responses time is to MoS2The influence of particulate form and size：
The present embodiment use three groups of experiments, the hydro-thermal reaction time be respectively 12h, for 24 hours, 48h, other conditions are the same as embodiment 1.
Fig. 3 mainly illustrates to change the reaction time, to explore the shape characteristic of molybdenum disulfide.The polyacrylamide of use (PAM) a concentration of 0.01g/100mL.Fig. 3 a are the SEM figures for being 12h acquisition products in the reaction time, it can be obtained from the figure that, molybdenum disulfide Though there is spherical shape, there is agglomeration.Fig. 3 b are the SEM figures for being acquisition product for 24 hours in the reaction time, and the grain size of products therefrom is more equal It is even, without agglomeration, best results.When reaction is 48h, such as Fig. 3 c, molybdenum disulfide shape at this time is still spherical shape, is gone out simultaneously The phenomenon that existing hollow ball.Under the long time, layer structure can be woven into hollow ball.
Based on above-mentioned experimental result, it is believed that, the form of molybdenum disulfide is different under different time.It is between when reacted When 12h, molybdenum disulfide shape size at this time differs, different (see Fig. 3 a).It is two sulphur at this time for 24 hours between when reacted The sphericity for changing molybdenum is very high (see Fig. 3 b), uniform particle sizes, so the time is suitable.It is 48h when the time, molybdenum disulfide at this time is still Microballoon, but in the case where crossing long-time, the MoS of nano ply2There are hollow phenomenon when accumulation mos2 microsphere (see Fig. 3 c).Institute Left and right for 24 hours is should be so that the reaction time can be obtained, it is more suitable.
The above content is just an example and description of the concept of the present invention, affiliated those skilled in the art It makes various modifications or additions to the described embodiments or substitutes by a similar method, without departing from invention Design or beyond the scope defined by this claim, be within the scope of protection of the invention.

Claims (4)

1. a kind of MoS with hierarchical structure2The preparation method of micro-nano ball, which is characterized in that be with thioacetamide or thiocarbamide Sulphur source, with polyacrylamide (PAM) for template contral agent, is prepared using hydro-thermal reaction and is had using sodium molybdate or ammonium molybdate as molybdenum source There is the MoS of hierarchical structure2Micro-nano ball.
2. preparation method as described in claim 1, which is characterized in that the preparation including reaction precursor liquid and hydro-thermal reaction two Process is as follows：
1), at room temperature, 2~4g sulphur sources and 0.2~0.6g molybdenum sources are added to the polyacrylamide of a concentration of 0.1-3g/L of 100mL (PAM) in aqueous solution, it is uniformly mixing to obtain reaction precursor liquid；
2) reaction precursor liquid, is transferred in reaction kettle progress 6~48h of hydro-thermal reaction at 180~200 DEG C and can be obtained MoS2It is micro- Nano structural material.
3. preparation method as claimed in claim 2, which is characterized in that in CH4N2S-MoO4 2--PAM-H2In O reaction systems, water The MoS of regular pattern will be obtained after thermal response2Microballoon.
4. preparation method as claimed in claim 2, which is characterized in that in CH3CSNH2-MoO4 2--PAM-H2In O reaction systems, The MoS of higher sphericity will be obtained after hydro-thermal reaction2Microballoon.
CN201810873431.7A 2018-08-02 2018-08-02 Preparation method of MoS2 micro nanospheres with hierarchical structure Active CN108658128B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810873431.7A CN108658128B (en) 2018-08-02 2018-08-02 Preparation method of MoS2 micro nanospheres with hierarchical structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810873431.7A CN108658128B (en) 2018-08-02 2018-08-02 Preparation method of MoS2 micro nanospheres with hierarchical structure

Publications (2)

Publication Number Publication Date
CN108658128A true CN108658128A (en) 2018-10-16
CN108658128B CN108658128B (en) 2020-05-05

Family

ID=63788862

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201810873431.7A Active CN108658128B (en) 2018-08-02 2018-08-02 Preparation method of MoS2 micro nanospheres with hierarchical structure

Country Status (1)

Country Link
CN (1) CN108658128B (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109607594A (en) * 2018-12-18 2019-04-12 合肥学院 A method of form controllable metal sulfide is prepared using polyacrylamide
CN109650450A (en) * 2019-01-18 2019-04-19 三峡大学 A kind of hollow MoS2The preparation method and applications of microballoon
CN110120507A (en) * 2019-05-16 2019-08-13 常熟理工学院 A kind of heterogeneous material compound and its preparation method and application that graphene is modified
CN110255619A (en) * 2019-06-21 2019-09-20 南京工业大学 Method for preparing molybdenum sulfide with three-dimensional hollow structure based on up-conversion nanoparticles
CN114195130A (en) * 2021-12-27 2022-03-18 合肥中镓纳米技术有限公司 C/MoS2Preparation method of composite nano material
CN114455635A (en) * 2022-03-11 2022-05-10 合肥学院 Method for reducing particle size of hollow spherical nano molybdenum disulfide and improving shape regularity

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103663571A (en) * 2013-12-24 2014-03-26 武汉理工大学 Preparation method for superparamagnetism ferroferric oxide sub-micron hollow microsphere
CN104393294A (en) * 2014-11-27 2015-03-04 江苏理工学院 Preparation method of flower-shaped molybdenum disulfide microspheres
CN104591286A (en) * 2014-12-25 2015-05-06 江苏大学 Preparation method of molybdenum disulfide microspheres

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103663571A (en) * 2013-12-24 2014-03-26 武汉理工大学 Preparation method for superparamagnetism ferroferric oxide sub-micron hollow microsphere
CN104393294A (en) * 2014-11-27 2015-03-04 江苏理工学院 Preparation method of flower-shaped molybdenum disulfide microspheres
CN104591286A (en) * 2014-12-25 2015-05-06 江苏大学 Preparation method of molybdenum disulfide microspheres

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109607594A (en) * 2018-12-18 2019-04-12 合肥学院 A method of form controllable metal sulfide is prepared using polyacrylamide
CN109650450A (en) * 2019-01-18 2019-04-19 三峡大学 A kind of hollow MoS2The preparation method and applications of microballoon
CN110120507A (en) * 2019-05-16 2019-08-13 常熟理工学院 A kind of heterogeneous material compound and its preparation method and application that graphene is modified
CN110255619A (en) * 2019-06-21 2019-09-20 南京工业大学 Method for preparing molybdenum sulfide with three-dimensional hollow structure based on up-conversion nanoparticles
CN110255619B (en) * 2019-06-21 2022-04-22 南京工业大学 Method for preparing molybdenum sulfide with three-dimensional hollow structure based on up-conversion nanoparticles
CN114195130A (en) * 2021-12-27 2022-03-18 合肥中镓纳米技术有限公司 C/MoS2Preparation method of composite nano material
CN114195130B (en) * 2021-12-27 2024-01-05 合肥中镓纳米技术有限公司 C/MoS 2 Preparation method of composite nano material
CN114455635A (en) * 2022-03-11 2022-05-10 合肥学院 Method for reducing particle size of hollow spherical nano molybdenum disulfide and improving shape regularity
CN114455635B (en) * 2022-03-11 2023-09-15 合肥学院 Method for reducing particle size and improving morphology regularity of hollow spherical nano molybdenum disulfide

Also Published As

Publication number Publication date
CN108658128B (en) 2020-05-05

Similar Documents

Publication Publication Date Title
CN108658128A (en) A kind of MoS with hierarchical structure2The preparation method of micro-nano ball
Zhang et al. Control of ZnO morphology via a simple solution route
Cui et al. Synthesis and functions of Ag 2 S nanostructures
Lun et al. Enhancing dispersion of halloysite nanotubes via chemical modification
Gao et al. Novel hollow α-Fe 2 O 3 nanofibers via electrospinning for dye adsorption
Longo et al. A joint experimental and theoretical study on the nanomorphology of CaWO4 crystals
CN103936074B (en) The method of the full nanometer rod of a kind of water heat transfer ultrafine tungsten trioxide
Li et al. Synthesis of flower-like ZnO microstructures via a simple solution route
CN101302032B (en) Preparation of cupric oxide nano-material
CN103056377B (en) Method for manufacturing nanometer tungsten/cobalt carbide composite powder
Singh et al. Graphene oxide (GO)/Copper doped Hematite (α-Fe2O3) nanoparticles for organic pollutants degradation applications at room temperature and neutral pH
Ahmadpoor et al. Self-assembled lignosulfonate-inorganic hybrid nanoflowers and their application in catalytic reduction of methylene blue and 4-nitrophenol
CN107999077B (en) Tri-metal nano-grade Prussian-like blue material and application thereof
Bao et al. Monodisperse hollow TiO2 spheres for thermal insulation materials: Template-free synthesis, characterization and properties
CN109231172B (en) Two-dimensional metal oxide nanosheet and preparation method thereof
Zhang et al. Kinetically-controlled template-free synthesis of hollow silica micro-/nanostructures with unusual morphologies
CN108128805A (en) A kind of preparation method of molybdenum disulfide hollow ball
Zhang et al. Synthesis of high-aspect-ratio nickel nanowires by dropping method
Beshkar et al. Novel dendrite-like CuCr 2 O 4 photocatalyst prepared by a simple route in order to remove of Azo Dye in textile and dyeing wastewater
Chu et al. The gas sensing properties of NiGa2O4 nanofibers prepared by electrospinning method
CN106398397A (en) Method for preparing monodisperse graphene based nano silver composite
Hou et al. Synthesis of dumbbell-like ZnO microcrystals via a simple solution route
Peng et al. Hydrothermal formation of controllable hexagonal holes and Er2O3/Er2O3-RGO particles on silicon wafers toward superhydrophobic surfaces
Jiang et al. Microemulsion-mediated hydrothermal synthesis of flower-like MoS 2 nanomaterials with enhanced catalytic activities for anthracene hydrogenation
Yang et al. Preparation and characterization of magnetic α-Fe2O3/Fe3O4 heteroplasmon nanorods via the ethanol solution combustion process of ferric nitrate

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
GR01 Patent grant
GR01 Patent grant
PE01 Entry into force of the registration of the contract for pledge of patent right
PE01 Entry into force of the registration of the contract for pledge of patent right

Denomination of invention: A preparation method of MoS2 micro nano spheres with hierarchical structure

Effective date of registration: 20210714

Granted publication date: 20200505

Pledgee: Hefei zhongcarbon New Material Technology Co.,Ltd.

Pledgor: HEFEI ZHONGHANG NANOMETER TECHNOLOGY DEVELOPMENT Co.,Ltd.

Registration number: Y2021980006127

PC01 Cancellation of the registration of the contract for pledge of patent right
PC01 Cancellation of the registration of the contract for pledge of patent right

Date of cancellation: 20210906

Granted publication date: 20200505

Pledgee: Hefei zhongcarbon New Material Technology Co.,Ltd.

Pledgor: HEFEI ZHONGHANG NANOMETER TECHNOLOGY DEVELOPMENT Co.,Ltd.

Registration number: Y2021980006127