CN107938027B - A kind of pure tungsten nanofiber, preparation method and application - Google Patents
A kind of pure tungsten nanofiber, preparation method and application Download PDFInfo
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- CN107938027B CN107938027B CN201711370838.XA CN201711370838A CN107938027B CN 107938027 B CN107938027 B CN 107938027B CN 201711370838 A CN201711370838 A CN 201711370838A CN 107938027 B CN107938027 B CN 107938027B
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F9/00—Artificial filaments or the like of other substances; Manufacture thereof; Apparatus specially adapted for the manufacture of carbon filaments
- D01F9/08—Artificial filaments or the like of other substances; Manufacture thereof; Apparatus specially adapted for the manufacture of carbon filaments of inorganic material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y30/00—Nanotechnology for materials or surface science, e.g. nanocomposites
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- H—ELECTRICITY
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- H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
- H01B1/02—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors mainly consisting of metals or alloys
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Abstract
The invention belongs to field of nanometer material technology, more particularly, to a kind of pure tungsten nanofiber, preparation method and application.The present invention prepares pure tungsten nanofiber the following steps are included: (1) prepares electrostatic spinning liquid, and it transfers them to and carries out electrostatic spinning in electrospinning device, tungstenic presoma nanofiber is obtained, and the electrostatic spinning liquid is Tungstenic compound and high polymer binder to be dissolved completely in the mixed liquor of water and organic solvent；(2) the tungstenic presoma nanofiber in step (1) is placed in air furnace and is calcined, obtain WO3Nanofiber；(3) by the WO in step (2)3Nanofiber is transferred in high-temperature atmosphere furnace and calcines, and obtains pure tungsten nanofiber.Pure tungsten nanofiber diameter prepared by the present invention is evenly distributed, continuity is good and has excellent electric conductivity, and can be realized the large-scale production and extensive use of pure tungsten nanofiber.
Description
Technical field
The invention belongs to field of nanometer material technology, more particularly, to a kind of pure tungsten nanofiber, preparation method and answer
With.
Background technique
With intelligent movable equipment fast development and it is universal, the transparent electrode market demand is growing.For a long time, tin
Leading material of the doped indium oxide (ITO) as transparent electrode market.Due to the rare and its expensive price of phosphide element, seriously
Limit the extensive use of ito transparent electrode.In recent years, domestic and international researcher is dedicated to developing novel transparent electrode material
Material, such as conducting polymer thin film, carbon nanotube, graphene and metal nano net, it is intended to replace traditional ITO material.
Currently, metal nanometer line becomes the research heat of transparent electrode material of new generation because of its high-transmission rate and high conductivity
Point.But the unstable chemcial property of these metal nanometer lines, cause its performance larger with the variation of environmental condition, example
As silver can be with H a small amount of in air2S or CO2It reacts, copper is oxidized easily in air etc. can all reduce leading for nano wire
Electrically.The characteristics such as tungsten electric conductivity with good stability, excellent, high-melting-point and high rigidity, are used for for a long time
Filament, cutting element and optical instrumentation etc..Therefore, if in conjunction with tungsten material high conductivity and good stability, will
It is applied to transparent electrode material, not only can guarantee the high-quality-factor of transparent electrode, but also it can be made to have in a bad working environment
There is good performance stability.The preparation of tungsten nanofiber and performance study have the development and application of transparent electrode as a result,
Important scientific value and research significance.
Summary of the invention
Aiming at the above defects or improvement requirements of the prior art, the present invention provides a kind of pure tungsten nanofibers, its preparation
Method and application, the characteristics of sufficiently combining tungsten nanofiber product and demand, preparation side of the specific aim to pure tungsten nanofiber
Method is redesigned, and crucial preparation technology parameter is selected and optimized, and accordingly obtaining one kind has good lead
Electrically, the pure tungsten nanofiber of uniform diameter and higher draw ratio, thus solves the technology of preparing of pure tungsten nanofiber
Problem.
To achieve the above object, according to one aspect of the present invention, a kind of preparation method of pure tungsten nanofiber is provided,
Include the following steps:
(1) electrostatic spinning liquid is prepared, its electrostatic spinning is obtained into tungstenic presoma nanofiber, the electrostatic spinning liquid is
Tungstenic compound and high polymer binder are dissolved in the mixed liquor formed in water and organic solvent；
(2) tungstenic presoma nanofiber obtained in step (1) is subjected to first time calcining, is obtained by pre-oxidation
WO3Nanofiber；Wherein, first time calcining heating rate is 1 DEG C/min~20 DEG C/min, calcination temperature is 400 DEG C~
800 DEG C, soaking time 0.5h~6h；
(3) by WO obtained in step (2)3Nanofiber carries out second and calcines, and obtains pure tungsten by high temperature reduction and receives
Rice fiber, wherein the heating rate of second of calcining is 1 DEG C/min~20 DEG C/min, calcination temperature is 400 DEG C~1000
DEG C, soaking time 0.5h~4h.
Preferably, in step (1), the weight percent of each component is respectively as follows: tungstenic chemical combination in the electrostatic spinning liquid
Object 5%~20%, high polymer binder 20%~40%, organic solvent 15%~25%, water 30%~50%.
Preferably, in step (1), the voltage of the electrostatic spinning is 8kV~40kV, electrostatic spinning distance be 10cm~
30cm, electrostatic spinning flow velocity are 2mL/h~5mL/h.
Preferably, in step (1), the Tungstenic compound is one of ammonium metatungstate, wolframic acid or isopropanol tungsten or more
Kind.
Preferably, in step (1), the high polymer binder be polyacrylonitrile, polyvinyl alcohol, vinyl acetate resin or
One of polyvinylpyrrolidone is a variety of.
Preferably, in step (1), selected organic solvent is isopropanol, ethyl alcohol, n,N-Dimethylformamide, chloroform
Or one of ether or a variety of.
Preferably, the atmosphere of second calcining described in step (3) be one of ammonia, carbon source gas or hydrogen or
It is a variety of.
Other side according to the invention provides the production of pure tungsten nanofiber obtained by preparation method described in one kind
Product.
Other side according to the invention provides the application of pure tungsten nanofiber product described in one kind, is used as saturating
Prescribed electrode material.
In general, through the invention it is contemplated above technical scheme is compared with the prior art, can obtain down and show
Beneficial effect:
1, the present invention selects soluble Tungstenic compound as tungsten source, and water and organic solvent is selected to dissolve tungsten source, utilizes
Electrostatic spinning technique directly prepares tungstenic presoma nanofiber；
2, fabricated in situ pure tungsten nanofiber is realized by calcining twice, is removed first by being calcined in first time air
High polymer binder in fiber obtains WO3Then nanofiber restores WO in reducing atmosphere furnace3Obtain pure tungsten nanofiber；
3, the present invention using macromolecule organic be used as binder, by adjusting high polymer binder mass percent with
The viscosity of accurate control electrostatic spinning liquid, both can control the diameter and the successful important link of electrostatic spinning process of fiber；
4, for the present invention by adjusting accurate control of the electrospinning parameters realization to nanofiber, such as improving spinning voltage can
To accelerate electrostatic spinning rate, the flow velocity for adjusting solution can control the diameter of nanofiber；
5, the present invention is provided using carbon source or hydrogen source gas as reducing gas for being prepared in situ for pure tungsten nanofiber
Necessary synthesis atmosphere；
6, the calcination temperature of the invention for preparing pure tungsten nanofiber is lower, has both met the reduction item of tungsten oxide nanofibers
Part also ensures the continuity of pure tungsten nanofiber；
7, the present invention prepares pure tungsten nanofiber using electrostatic spinning technique, and this method is simple and quick, cost performance is high, is suitble to
Large-scale production.
Detailed description of the invention
Fig. 1 is pure tungsten nanofiber preparation method flow chart constructed by preferred embodiment according to the invention；
Fig. 2 is the XRD spectrum for being pure tungsten nanofiber constructed by preferred embodiment 1 according to the invention；
Fig. 3 is pure tungsten nanofiber SEM photograph constructed by preferred embodiment 1 according to the invention；
Fig. 4 is the test device schematic diagram of pure tungsten nanofiber constructed by preferred embodiment according to the invention；
Fig. 5 is the I-V curve of pure tungsten nanofiber constructed by preferred embodiment according to the invention.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.As long as in addition, technical characteristic involved in the various embodiments of the present invention described below
Not constituting a conflict with each other can be combined with each other.
Fig. 1 is pure tungsten nanofiber preparation method flow chart constructed by preferred embodiment according to the invention, including with
Lower step:
(1) electrostatic spinning liquid is prepared, and transfers them to electrostatic spinning in electrospinning device and obtains tungstenic presoma and receive
Rice fiber, the electrostatic spinning liquid is the mixed liquor that Tungstenic compound and high polymer binder are dissolved in water and organic solvent
In, it is uniformly mixing to obtain the solution of stable homogeneous；Wherein the weight percent of each component is respectively as follows: tungstenic in electrostatic spinning liquid
Compound 5%~20%, high polymer binder 20%~40%, organic solvent 15%~25%, water 30%~50%；Static Spinning
The voltage of silk is 8kV~40kV, and electrostatic spinning distance is 10cm~30cm, and electrostatic spinning flow velocity is 2mL/h~5mL/h；Contain
Tungsten compound is one of ammonium metatungstate, wolframic acid or isopropanol tungsten or a variety of；High polymer binder is polyacrylonitrile, polyethylene
One of alcohol, vinyl acetate resin or polyvinylpyrrolidone are a variety of；Organic solvent is isopropanol, ethyl alcohol, N, N- diformazan
One of base formamide, chloroform or ether are a variety of.
(2) tungstenic presoma nanofiber obtained in step (1) is placed in air furnace and is calcined for the first time, pass through pre- oxygen
Change obtains WO3Nanofiber.Wherein, air furnace heating rate is 1 DEG C/min~20 DEG C/min, and calcination temperature is 400 DEG C~800
DEG C, soaking time 0.5h~4h.
(3) by WO obtained in step (2)3Nanofiber, which is placed in high-temperature atmosphere furnace, carries out second of calcining, gas atmosphere
Enclosing is one of ammonia, carbon source gas or hydrogen or a variety of, obtain pure tungsten nanofiber by high temperature reduction, wherein atmosphere furnace
Heating rate is 1 DEG C/min~20 DEG C/min, and calcination temperature is 400 DEG C~1000 DEG C, soaking time 0.5h~4h.
Calcining pre-oxidation for the first time obtains WO3It, can be after cooling by gained WO after nanofiber3Nanofiber transfer
It carries out calcining for second in another boiler tube；It can also be by first time calcining and second of calcining in the same high-temperature atmosphere furnace
Middle progress, calcining directly switches to carbon containing or hydrogeneous atmosphere by air atmosphere after terminating for the first time.
There is good electric conductivity according to pure tungsten nanofiber product obtained by above-mentioned preparation method, conductivity is up to
1415S/cm, uniform diameter are distributed between 300-500nm, and the length of fiber reaches hundreds of microns to several millimeters, these
Excellent performance has potential application pure tungsten nanofiber in transparent electrode material application aspect.
The following are embodiments:
Embodiment 1:
As shown in Figure 1, firstly, preparation electrostatic spinning liquid, is dissolved in 20g water and 40g for 10g ammonium metatungstate and 30g PVP
In the mixed solution of ethyl alcohol, it is uniformly mixing to obtain the solution of stable homogeneous；Then, electrostatic spinning liquid is transferred in spinning equipment
Electrostatic spinning is carried out, tungstenic presoma nanofiber can be obtained.Wherein, spinning voltage 18kV, spinning distance are 15cm, are spun
Silk flow velocity is 4mL/h.It is obtained secondly, above-mentioned tungstenic presoma nanofiber is placed in resistance furnace and carries out pre-oxidation treatment
WO3Nanofiber.Wherein, the heating rate of resistance furnace is set as 8 DEG C/min, and holding temperature is 600 DEG C, soaking time 4h.
Finally, by WO3Nanofiber is transferred to progress reduction treatment in tube furnace and obtains pure tungsten nanofiber.Wherein heating rate is 10
DEG C/min, holding temperature is 600 DEG C, and soaking time is set as 4h.
Embodiment 2:
As shown in Figure 1, firstly, preparation electrostatic spinning liquid, is dissolved in 20g water and 40g for 10g ammonium metatungstate and 30g PVP
In the mixed solution of ethyl alcohol, it is uniformly mixing to obtain the solution of stable homogeneous；Then, electrostatic spinning liquid is transferred in spinning equipment
Electrostatic spinning is carried out, tungstenic presoma nanofiber can be obtained.Wherein, spinning voltage 18kV, spinning distance are 15cm, are spun
Silk flow velocity is 4mL/h.It is obtained secondly, above-mentioned tungstenic presoma nanofiber is placed in resistance furnace and carries out pre-oxidation treatment
WO3Nanofiber.Wherein, the heating rate of resistance furnace is set as 8 DEG C/min, and holding temperature is 700 DEG C, soaking time 4h.
Finally, by WO3Nanofiber is transferred to progress reduction treatment in tube furnace and obtains pure tungsten nanofiber.Wherein heating rate is 10
DEG C/min, holding temperature is 600 DEG C, and soaking time is set as 4h.
Embodiment 3:
As shown in Figure 1, firstly, preparation electrostatic spinning liquid, is dissolved in 20g water and 40g for 10g ammonium metatungstate and 30g PVP
In the mixed solution of ethyl alcohol, it is uniformly mixing to obtain the solution of stable homogeneous；Then, electrostatic spinning liquid is transferred in spinning equipment
Electrostatic spinning is carried out, tungstenic presoma nanofiber can be obtained.Wherein, spinning voltage 18kV, spinning distance are 15cm, are spun
Silk flow velocity is 4mL/h.It is obtained secondly, above-mentioned tungstenic presoma nanofiber is placed in resistance furnace and carries out pre-oxidation treatment
WO3Nanofiber.Wherein, the heating rate of resistance furnace is set as 8 DEG C/min, and holding temperature is 800 DEG C, soaking time 4h.
Finally, by WO3Nanofiber is transferred to progress reduction treatment in tube furnace and obtains pure tungsten nanofiber.Wherein heating rate is 10
DEG C/min, holding temperature is 600 DEG C, and soaking time is set as 4h.
Embodiment 4:
As shown in Figure 1, firstly, preparation electrostatic spinning liquid, is dissolved in 20g water and 40g for 10g ammonium metatungstate and 30g PVP
In the mixed solution of ethyl alcohol, it is uniformly mixing to obtain uniform, stable solution；Then, electrostatic spinning liquid is transferred to spinning equipment
Middle carry out electrostatic spinning, can be obtained tungstenic presoma nanofiber.Wherein, spinning voltage 18kV, spinning distance are 15cm,
Spinning flow velocity is 4mL/h.It is obtained secondly, above-mentioned tungstenic presoma nanofiber is placed in resistance furnace and carries out pre-oxidation treatment
WO3Nanofiber.Wherein, the heating rate of resistance furnace is set as 8 DEG C/min, and holding temperature is 900 DEG C, soaking time 4h.
Finally, by WO3Nanofiber is transferred to progress reduction treatment in tube furnace and obtains pure tungsten nanofiber.Wherein heating rate is 10
DEG C/min, holding temperature is 600 DEG C, and soaking time is set as 4h.
Embodiment 5:
As shown in Figure 1, firstly, preparation electrostatic spinning liquid, is dissolved in 20g water and 40g for 10g ammonium metatungstate and 30g PVP
In the mixed solution of ethyl alcohol, it is uniformly mixing to obtain the solution of stable homogeneous；Then, electrostatic spinning liquid is transferred in spinning equipment
Electrostatic spinning is carried out, tungstenic presoma nanofiber can be obtained.Wherein, spinning voltage 18kV, spinning distance are 15cm, are spun
Silk flow velocity is 4mL/h.It is obtained secondly, above-mentioned tungstenic presoma nanofiber is placed in resistance furnace and carries out pre-oxidation treatment
WO3Nanofiber.Wherein, the heating rate of resistance furnace is set as 8 DEG C/min, and holding temperature is 600 DEG C, soaking time 4h.
Finally, by WO3Nanofiber is transferred to progress reduction treatment in tube furnace and obtains pure tungsten nanofiber.Wherein heating rate is 10
DEG C/min, holding temperature is 700 DEG C, and soaking time is set as 4h.
Embodiment 6:
As shown in Figure 1, firstly, preparation electrostatic spinning liquid, is dissolved in 20g water and 40g for 10g ammonium metatungstate and 30g PVP
In the mixed solution of ethyl alcohol, it is uniformly mixing to obtain the solution of stable homogeneous；Then, electrostatic spinning liquid is transferred in spinning equipment
Electrostatic spinning is carried out, tungstenic presoma nanofiber can be obtained.Wherein, spinning voltage 18kV, spinning distance are 15cm, are spun
Silk flow velocity is 4mL/h.It is obtained secondly, above-mentioned tungstenic presoma nanofiber is placed in resistance furnace and carries out pre-oxidation treatment
WO3Nanofiber.Wherein, the heating rate of resistance furnace is set as 8 DEG C/min, and holding temperature is 600 DEG C, soaking time 4h.
Finally, by WO3Nanofiber is transferred to progress reduction treatment in tube furnace and obtains pure tungsten nanofiber.Wherein heating rate is 10
DEG C/min, holding temperature is 800 DEG C, and soaking time is set as 4h.
Embodiment 7:
As shown in Figure 1, firstly, preparation electrostatic spinning liquid, is dissolved in 20g water and 40g for 10g ammonium metatungstate and 30g PVP
In the mixed solution of ethyl alcohol, it is uniformly mixing to obtain the solution of stable homogeneous；Then, electrostatic spinning liquid is transferred in spinning equipment
Electrostatic spinning is carried out, tungstenic presoma nanofiber can be obtained.Wherein, spinning voltage 18kV, spinning distance are 15cm, are spun
Silk flow velocity is 4mL/h.It is obtained secondly, above-mentioned tungstenic presoma nanofiber is placed in resistance furnace and carries out pre-oxidation treatment
WO3Nanofiber.Wherein, the heating rate of resistance furnace is set as 8 DEG C/min, and holding temperature is 600 DEG C, soaking time 4h.
Finally, by WO3Nanofiber is transferred to progress reduction treatment in tube furnace and obtains pure tungsten nanofiber.Wherein heating rate is 10
DEG C/min, holding temperature is 900 DEG C, and soaking time is set as 4h.
Embodiment 8:
As shown in Figure 1, firstly, preparation electrostatic spinning liquid, is dissolved in 20g water and 40g for 10g ammonium metatungstate and 30g PVP
In the mixed solution of ethyl alcohol, it is uniformly mixing to obtain the solution of stable homogeneous；Then, electrostatic spinning liquid is transferred in spinning equipment
Electrostatic spinning is carried out, tungstenic presoma nanofiber can be obtained.Wherein, spinning voltage 18kV, spinning distance are 15cm, are spun
Silk flow velocity is 4mL/h.It is obtained secondly, above-mentioned tungstenic presoma nanofiber is placed in resistance furnace and carries out pre-oxidation treatment
WO3Nanofiber.Wherein, the heating rate of resistance furnace is set as 8 DEG C/min, and holding temperature is 600 DEG C, soaking time 4h.
Finally, by WO3Nanofiber is transferred to progress reduction treatment in tube furnace and obtains pure tungsten nanofiber.Wherein heating rate is 10
DEG C/min, holding temperature is 1000 DEG C, and soaking time is set as 4h.
Fig. 2 is the XRD spectrum for the pure tungsten nanofiber being prepared according to technology in embodiment 1.By mutually being marked with pure tungsten
Quasi- XRD diffraction card comparison is it can be found that all diffraction maximums both correspond to pure tungsten phase in embodiment 1.Thus illustrate, utilize the system
Preparation Method can realize the preparation of pure tungsten nanofiber when reduction temperature is down to 600 DEG C.
Fig. 3 is that the SEM for the pure tungsten nanofiber being prepared according to technology in embodiment 1 schemes.It can be seen from the figure that system
Standby pure tungsten nanofiber diameter is uniformly distributed between 300-500nm.Nanofiber still keeps good after calcining
Continuity, single fiber length can achieve some tens of pm or even arrives several millimeters.In addition, the Nanowire after calcining
Dimension table face is smooth, and crystal grain is tiny and fine and close.This fine and close and continuous fibre structure ensure that the good electricity of pure tungsten nanofiber
Learn performance.
Fig. 4 is the electrical performance testing device schematic diagram of one-dimensional pure tungsten nanofiber in the present invention.Firstly, utilizing bipolar electrode
Method collects pure tungsten nanofiber arranged in parallel, and nanofiber arranged in parallel is transferred on quartz plate；It then, will be above-mentioned
Quartz plate, which is sequentially placed into resistance furnace and tube furnace, carries out pre-oxidation and high temperature reduction, can obtain parallel on quartz plate surface
The pure tungsten nanofiber of column；Finally, sputtering gold electrode at fiber both ends, 500 μm of conducting channel is left, pure tungsten is thus obtained and receives
The electrical performance testing device of rice fiber.
Fig. 5 is the I-V curve figure that one-dimensional pure tungsten nanofiber tests device in embodiment 1.As shown, in test device
Electrode both ends apply test voltage, and test the electric current by device channel.Wherein, voltage range is that -1V arrives 1V, test voltage
Step pitch is 0.02V, and test number of fiber is 10.It finds by test, is closed by the electric current and voltage linear of testing device
System illustrates that gold electrode and pure tungsten nanofiber maintain good Ohmic contact.According to Ohm's law, pure tungsten nanometer is calculated
The conductivity of fiber is 1415S/cm, has been more than the electric property of most of Electrospun nano-fibers.Since tungsten itself has
Preferable thermal stability and corrosion resistance, in conjunction with itself excellent electric property, so that tungsten nanofiber is in transparent electrode etc.
The preparation field of micro photo electric device is with a wide range of applications.
As it will be easily appreciated by one skilled in the art that the foregoing is merely illustrative of the preferred embodiments of the present invention, not to
The limitation present invention, any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should all include
Within protection scope of the present invention.
Claims (8)
1. a kind of preparation method of pure tungsten nanofiber, which comprises the steps of:
(1) electrostatic spinning liquid is prepared, its electrostatic spinning is obtained into tungstenic presoma nanofiber, the electrostatic spinning liquid is tungstenic
Compound and high polymer binder are dissolved in the mixed liquor formed in water and organic solvent；
(2) tungstenic presoma nanofiber obtained in step (1) is subjected to first time calcining, WO is obtained by pre-oxidation3Nanometer
Fiber；Wherein, the first time calcining heating rate is 1 DEG C/min~20 DEG C/min, and calcination temperature is 400 DEG C~800 DEG C, is protected
Warm time 0.5h~6h；
(3) by WO obtained in step (2)3Nanofiber carries out second and calcines, and obtains pure tungsten Nanowire by high temperature reduction
Dimension, wherein the heating rate of second of calcining is 1 DEG C/min~20 DEG C/min, calcination temperature is 400 DEG C~1000 DEG C, is protected
Warm time 0.5h~4h；The atmosphere of second of calcining is one of carbon source gas or hydrogen or a variety of.
2. preparation method as described in claim 1, which is characterized in that in step (1), each component in the electrostatic spinning liquid
Weight percent be respectively as follows: Tungstenic compound 5%~20%, high polymer binder 20%~40%, organic solvent 15%~
25%, water 30%~50%.
3. preparation method as claimed in claim 1 or 2, which is characterized in that in step (1), the voltage of the electrostatic spinning is
8kV~40kV, electrostatic spinning distance are 10cm~30cm, and electrostatic spinning flow velocity is 2mL/h~5mL/h.
4. preparation method as described in claim 1, which is characterized in that in step (1), the Tungstenic compound is metatungstic acid
One of ammonium, wolframic acid or isopropanol tungsten are a variety of.
5. preparation method as described in claim 1, which is characterized in that in step (1), the high polymer binder is poly- third
One of alkene nitrile, polyvinyl alcohol, vinyl acetate resin or polyvinylpyrrolidone are a variety of.
6. preparation method as described in claim 1, which is characterized in that in step (1), selected organic solvent is isopropyl
One of alcohol, ethyl alcohol, n,N-Dimethylformamide, chloroform or ether are a variety of.
7. pure tungsten nanofiber product obtained by a kind of preparation method as claimed in any one of claims 1 to 6.
8. a kind of application of pure tungsten nanofiber product as claimed in claim 7, which is characterized in that be used as transparent electrode material
Material.
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| CN109898367B (en) * | 2019-01-31 | 2020-06-05 | 华中科技大学 | Preparation method of inkless repeatedly erasable nanofiber paper and product thereof |
| CN109926063B (en) * | 2019-04-04 | 2021-11-30 | 台州学院 | Preparation method of copper tungstate nanofiber photocatalyst |
| CN111270348B (en) * | 2020-03-19 | 2022-09-27 | 东莞东阳光科研发有限公司 | SrVO 3 Nanofiber preparation method and related products |
| CN112481740B (en) * | 2020-10-15 | 2023-02-21 | 南昌航空大学 | Brush-shaped WO 3 Preparation method and application of/C nanowire |
| CN113791124A (en) * | 2021-05-20 | 2021-12-14 | 中国石油大学(华东) | NO driven by wind power friction nano generator2Gas monitoring system and preparation method and application thereof |
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| CN107938027A (en) | 2018-04-20 |
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