CN110102457A - A method of preparing nickel oxide nano-crystal electrochomeric films at low temperature - Google Patents
A method of preparing nickel oxide nano-crystal electrochomeric films at low temperature Download PDFInfo
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- CN110102457A CN110102457A CN201910315689.XA CN201910315689A CN110102457A CN 110102457 A CN110102457 A CN 110102457A CN 201910315689 A CN201910315689 A CN 201910315689A CN 110102457 A CN110102457 A CN 110102457A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/10—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by other chemical means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/10—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by other chemical means
- B05D3/104—Pretreatment of other substrates
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/24—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials for applying particular liquids or other fluent materials
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D2203/00—Other substrates
- B05D2203/30—Other inorganic substrates, e.g. ceramics, silicon
- B05D2203/35—Glass
Abstract
A method of it preparing nickel oxide nano-crystal electrochomeric films at low temperature, includes the following steps: that (1) prepares light blue turbid solution；(2) precursor solution is prepared；(3) precursor solution is dried, ground, dispersed；(4) processing of substrate；(5) nanocrystalline electrochomeric films are prepared.The beneficial effects of the present invention are: the method that one kind of the invention prepares nickel oxide nano-crystal electrochromic device at low temperature, the nickel oxide nano-crystal of nano-scale is prepared with the method for liquid-phase precipitation, nanocrystalline size is small, it is active high, large specific surface area, be conducive to the abjection and insertion of ion, efficiency of transmission improved, to improve discoloration efficiency.Nanocrystalline be prepared needs seldom amount that can prepare a large amount of electrochomeric films, advantageously reduces production cost, is the method for a kind of simple and convenient and low-cost preparation large area electrochromic layer.
Description
Technical field
The invention belongs to electrochromic device fields, more particularly to one kind to prepare the electroluminescent change of nickel oxide nano-crystal at low temperature
The method of color film.
Background technique
Electrochromism refers under the action of extra electric field, and light absorption or light scattering occur for material, so as to cause color and
There is a phenomenon where reversible changes for transparency.Electrochomeric glass alternative extraneous visible light and heat radiation absorb or
Reflection, can also prevent the diffusion of internal energy, to reach the temperature of dynamic regulation building.By electrochromic applications in the energy
Field achievees the effect that energy saving, great social effect and commercial value；Therefore, electrochromism technology can be answered widely
For building, the fields such as aviation and traffic above-ground.
Nickel oxide has as a kind of typical anode electrochromic material because its optical transmittance degree of amplitude modulation is big
Stable electrochromic property and longer cycle life, are concerned.But common preparation method focuses primarily upon magnetic control and splashes
Penetrate method and sol-gel method and electrochemical deposition method etc..But the above method or dependent on the equipment of complex and expensive and to environment item
Part rigors, it is difficult to prepare large area and NiO of good performancexFilm；Or it needs to carry out high warm in film forming procedure
Processing, causes method cumbersome, energy consumption is larger, and cannot be applied to flexible conductive film very well.Therefore, a kind of simplicity is invented
Low cost technique and large area can be prepared at room temperature, at a normal, electrochomeric films of good performance, it appears particularly important.
Summary of the invention
In view of the deficienciess of the prior art, the present invention provides one kind prepares nickel oxide nano-crystal electrochromism at low temperature
The method of film can be realized and prepare electro-allochromatic nickel oxide film of good performance at room temperature；This method is simple easily real
It is existing, it is low in cost, have a possibility that electrochomeric glass industry is applied and is promoted.
A method of preparing nickel oxide nano-crystal electrochomeric films at low temperature, which is characterized in that including walking as follows
It is rapid:
(1) nickel salt being dissolved in solvent, obtains clear solution after stirring, the substance withdrawl syndrome of the nickel salt is 0.1~
1mol/L；Oxalic acid is dissolved in after stirring solvent and obtains oxalic acid solution, the substance withdrawl syndrome of the oxalic acid is 0.1~1mol/L；
Oxalic acid solution is instilled in clear solution with 0.05~0.0625ml/s, is sufficiently stirred to form light blue turbid solution；It will be light blue
1h or more is placed in turbid solution ageing；Wherein, the solvent is deionized water, ethyl alcohol or other solvents；
(2) the light blue turbid solution after taking ageing after being centrifugated 5~15min, removes supernatant, is washed with solvent
It washs, obtains precursor solution；Wherein, the solvent is deionized water, ethyl alcohol or other solvents；
(3) precursor solution is placed in in 60~100 DEG C of drying equipment dry 6~for 24 hours, obtain presoma solid；
(4) presoma solid is placed in milling apparatus after being ground, is put into 360~400 DEG C of Equipment for Heating Processing
20~90min is calcined, nanocrystalline powder is obtained；
(5) nanocrystalline powder is placed in the dispersion liquid that concentration is 3~90mg/mL and is dispersed, obtain nanocrystalline dispersion
Liquid；
(6) processing of substrate, steps are as follows:
Substrate: successively being used detergent, deionized water, acetone and ethyl alcohol by ultrasonic cleaning processing, in Vltrasonic device respectively
After starting the cleaning processing 5~10min, takes out, dried with drying equipment；
Surface-active-treatment: will carry out surface-active-treatment by ultrasonic cleaning treated substrate, spare；The surface
Activity processing, which refers to, carries out surface-active-treatment with oxygen plasma cleaning device or UV cleaning agent；
(7) take nanocrystalline dispersion liquid by coating process film on the transparency conducting layer for the substrate handled well, 70~80
DEG C drying equipment in dry 12h or more, obtain nanocrystalline electrochomeric films；The nanocrystalline electrochomeric films are being realized
It is electrochromic to form super capacitor film meanwhile, it is capable to store electric energy, electric energy is released when fading, passes through the depth of coloring
Shallowly judge the state of electricity, realizes visualization.
The concentration of clear solution and oxalic acid solution is calculated in molar ratio as 0.1~1 in step (1).
The partial size of nanocrystalline powder obtained in step (4) is 4~100nm.
Li is added in precursor solution described in step (2)+、Cu2+Or Al3+One or more of.
Dispersing agent or thickener are added in dispersion liquid described in step (5), wherein thickener includes inorganic thickening agent, fiber
One of plain ether, natural polymer and its derivative, synthesis macromolecule, solvay-type organo-metallic compound or printing thickening agent
Or it is several；Dispersing agent includes that (Plasmosan gathers for cellulose ether, SN-5027 dispersing agent or non-ionic water-soluble macromolecule
One or more of ether derivant or polyethylene glycol).
Substrate is electro-conductive glass, flexible transparent conductive film in step (6)；The electro-conductive glass be ITO electro-conductive glass,
FTO electro-conductive glass and AZO electro-conductive glass；The flexible transparent conductive film is that silver nanowires flexible conductive film and ITO are flexible
Transparent conductive film.
Coating process described in step (7) is electrodeposition process, knife coating, spray coating method；Film needed for the electrodeposition process regards
Thickness is accordingly adjusted the concentration of deposition voltage, deposition current, sedimentation time and nanocrystalline dispersion liquid；The knife coating or spray
Coating film thickness and size depending on needed for is accordingly adjusted the concentration of nanocrystalline dispersion liquid, spray deposited rate, scraper and opens
Mouth thickness and rate travel.
The beneficial effects of the present invention are: one kind of the invention prepares nickel oxide nano-crystal electrochromic device at low temperature
Method prepares the nickel oxide nano-crystal of nano-scale with the method for liquid-phase precipitation, and nanocrystalline size is small, and activity is high, specific surface
Product is big, is conducive to the abjection and insertion of ion, efficiency of transmission is improved, to improve discoloration efficiency.Nanocrystalline be prepared
It needs seldom amount that can prepare a large amount of electrochomeric films, advantageously reduces production cost.One kind of the invention is low
The method that nickel oxide nano-crystal electrochromic device is prepared under temperature prepares oxygen using electrophoretic deposition method, knife coating or spray coating method
Change the nanocrystalline electrochomeric films of nickel, thicknesses of layers can be adjusted according to the actual situation.It is a kind of simple and convenient and cost
The method of cheap preparation large area electrochromic layer.One kind of the invention prepares nickel oxide nano-crystal electrochromism at low temperature
The electrochomeric films of function admirable can be obtained after the film was formed without carrying out high-temperature heat treatment in the method for device；Compared to biography
The method of system can significantly reduce the huge problem of high temperature sintering bring energy consumption.One kind of the invention prepares oxidation at low temperature
The method of the nanocrystalline electrochromic device of nickel, this method are not necessarily to high-temperature heat treatment, are particularly suitable for flexible electrochomeric films
Preparation, can widen electrochromic application field.One kind of the invention prepares nickel oxide nano-crystal electrochromism device at low temperature
The method of part, process energy consumption is small, at low cost, is conducive to the production cost for substantially reducing enterprise, is expected in electrochomeric films
It is promoted in process of industrialization.The method that one kind of the invention prepares nickel oxide nano-crystal electrochromic device at low temperature,
The nickel oxide film prepared has layer nutty structure, can store more M+Ion, can also be energy while discoloration
Amount storage, while being indicated with the variation of shade.
Detailed description of the invention
Fig. 1 is the XRD spectrum that the embodiment of the present invention 1 prepares nickel oxide nano-crystal powder；
Fig. 2 is the electromicroscopic photograph that 1 electrophoretic deposition of the embodiment of the present invention prepares nickel oxide nano-crystal film surface；
Fig. 3 is the electromicroscopic photograph that 1 electrophoretic deposition of the embodiment of the present invention prepares nickel oxide nano-crystal thin-membrane section；
Fig. 4 is that assembly device is colouring and the digital photograph after colour fading in the embodiment of the present invention 1；
Fig. 5 is the ultraviolet-visible light transmission rate figure of assembly device in the embodiment of the present invention 1；
Fig. 6 is the current-potential diagram of assembly device in the embodiment of the present invention 1；
Fig. 7 is the cyclic voltammetry curve of assembly device in the embodiment of the present invention 1；
Fig. 8 is that assembly device realizes difunctional digital photograph in the embodiment of the present invention 1.
Specific embodiment
In order to preferably explain the present invention, in order to understand, with reference to the accompanying drawing, by specific embodiment, to this hair
Bright technical solution and effect is described in detail.
Further explanation of the technical solution of the present invention for following preferred embodiment, those skilled in the art should know, with
Lower embodiment is only used to illustrate the present invention, and is not intended to limit the scope of the invention.
Embodiment 1
A method of it preparing nickel oxide nano-crystal electrochomeric films at low temperature, includes the following steps:
(1) 14.835g nitric acid nickel salt is dissolved in 250mL dehydrated alcohol, clear solution is obtained after stirring；By 6.556g grass
Acid is dissolved in 260mL dehydrated alcohol, and oxalic acid solution is obtained after stirring；Oxalic acid solution is instilled into clear solution with 0.0625ml/s
In, it is sufficiently stirred to form light blue turbid solution；Light blue turbid solution is aged and places 1h or more；
(2) the light blue turbid solution after taking ageing after being centrifugated 10min with the revolving speed of 5000rpm, removes supernatant,
Wash twice with dehydrated alcohol above, obtains precursor solution；
(3) precursor solution is placed in in 80 DEG C of constant temperature oven dry 12h or more, obtains presoma solid；
(4) presoma solid is placed in milling apparatus after being ground, is put into 380 DEG C of Muffle furnace and calcines 0.5h,
Obtain nanocrystalline powder；Fig. 1 is the XRD spectrum for preparing nanocrystalline powder；
(5) by nanocrystalline powder be placed in equipped with concentration be 10mg/mL deionized water ultrasonic cell disruption instrument in carry out
Dispersion, at interval of 9s, ultrasonic 9s continues 30min, obtains nanocrystalline dispersion liquid；
(6) processing of ITO or FTO electro-conductive glass, steps are as follows:
Ultrasonic cleaning processing: ITO or FTO electro-conductive glass is successively used into detergent, deionized water, dehydrated alcohol, in ultrasound
After starting the cleaning processing 10min respectively in device, takes out, dried in 80 DEG C of constant temperature oven；
Surface-active-treatment: will be by ultrasonic cleaning treated ITO or FTO electro-conductive glass is placed in oxygen plasma cleaning
In instrument, surface-active-treatment, operating power 200W, time 8min are carried out, the pressure for controlling the oxygen of operating room is
300Pa is handled well rear spare；
(7) take nanocrystalline dispersion liquid by electrophoretic deposition method, using ITO the or FTO electro-conductive glass handled well as depositing
Electrode, controlling the operating distance between two working electrodes is 2.0cm, operating voltage 4.5V, working time 90s, Zhi Houti
Pull out depositing electrode, be put into 80 DEG C of thermostatic drying chamber and dried, obtain nanocrystalline electrochomeric films, film with a thickness of
300nm~3 μm.The electromicroscopic photograph of the nickel oxide nano-crystal film of electrophoretic deposition preparation is as shown in Figures 2 and 3.
It, will be above-mentioned in order to further appreciate that the electrochromic property of nickel oxide nano-crystal film obtained in embodiment 1
The film being prepared is assembled into device, and Fig. 6 is the current-potential diagram of assembly device, and Fig. 7 is that the cyclic voltammetric of assembly device is bent
Line.The light transmission rate variation of device is measured with ultraviolet specrophotometer, the results showed that, when to device application positive pressure (3V), device
Part becomes taupe；It is applied negative pressure (- 3V), device fades, as shown in Figure 4.
Fig. 5 is the ultraviolet-visible light transmission rate figure of assembly device in embodiment 1, and highest light modulation range is 52.1%,
Illustrate that the electrochromic device has good spectral modulation amplitude.
Fig. 8 is that after coloring, both ends press from both sides upper small bulbs to device, and small bulbs are shinny, and electroluminescent change may be implemented in embodiment 1
The digital photograph of color and the double-function device of energy storage.
Embodiment 2
A method of it preparing nickel oxide nano-crystal electrochomeric films at low temperature, includes the following steps:
(1) 14.835g nitric acid nickel salt is dissolved in 250mL dehydrated alcohol, clear solution is obtained after stirring；By 6.556g grass
Acid is dissolved in 260mL dehydrated alcohol, and oxalic acid solution is obtained after stirring；Oxalic acid solution is instilled into clear solution with 0.0625ml/s
In, it is sufficiently stirred to form light blue turbid solution；Light blue turbid solution is aged and places 1h or more；
(2) the light blue turbid solution after taking ageing after being centrifugated 10min with the revolving speed of 5000rpm, removes supernatant,
Wash twice with dehydrated alcohol above, obtains precursor solution；
(3) precursor solution is placed in in 80 DEG C of constant temperature oven dry 12h or more, obtains presoma solid；
(4) presoma solid is placed in milling apparatus after being ground, is put into 380 DEG C of Muffle furnace and calcines 0.5h,
Obtain nanocrystalline powder；
(5) by nanocrystalline powder be placed in equipped with concentration be 30mg/mL deionized water ultrasonic cell disruption instrument in carry out
Dispersion, at interval of 9s, ultrasonic 9s continues 30min, obtains nanocrystalline dispersion liquid；0.1g hydroxyl second has been dissolved in the deionized water
Base cellulose；3.75mL hydroxyethyl cellulose colloidal sol is added in the nanocrystalline dispersion liquid；
(6) processing of ITO or FTO electro-conductive glass, steps are as follows:
Ultrasonic cleaning processing: ITO or FTO electro-conductive glass is successively used into detergent, deionized water, dehydrated alcohol, in ultrasound
After starting the cleaning processing 10min respectively in device, takes out, dried in 80 DEG C of constant temperature oven；
Surface-active-treatment: will be by ultrasonic cleaning treated ITO or FTO electro-conductive glass is placed in oxygen plasma cleaning
In instrument, surface-active-treatment, operating power 200W, time 8min are carried out, the pressure for controlling the oxygen of operating room is
300Pa is handled well rear spare；
(7) ITO or FTO electro-conductive glass is placed in the thermal station that temperature is 120 DEG C, hydroxyethyl cellulose colloidal sol will be added
Nanocrystalline dispersant liquid drop is on ITO or FTO electro-conductive glass, the at the uniform velocity coated substrate of spreader for being 60 μm with scraper opening, to
Solvent is evaporated completely, and after natural cooling, obtains nanocrystalline electrochomeric films.
Embodiment 3
A method of it preparing nickel oxide nano-crystal electrochomeric films at low temperature, includes the following steps:
(1) lithium carbonate of 5.942g nickel chloride and 0.1279g is dissolved in 250mL dehydrated alcohol, is clarified after stirring
Solution；3.278g oxalic acid is dissolved in 260mL dehydrated alcohol, oxalic acid solution is obtained after stirring；By oxalic acid solution with 0.025ml/s
It instills in clear solution, is sufficiently stirred to form light blue turbid solution；Light blue turbid solution is aged and places 1h or more；
(2) the light blue turbid solution after taking ageing after being centrifugated 10min with the revolving speed of 5000rpm, removes supernatant,
Wash twice with dehydrated alcohol above, obtains precursor solution；
(3) precursor solution is placed in in 80 DEG C of constant temperature oven dry 12h or more, obtains presoma solid；
(4) presoma solid is placed in milling apparatus after being ground, is put into 375 DEG C of Muffle furnace and calcines 0.5h,
Obtain nanocrystalline powder；
(5) by nanocrystalline powder be placed in equipped with concentration be 60mg/mL deionized water ultrasonic cell disruption instrument in carry out
Dispersion, at interval of 9s, ultrasonic 9s continues 30min, obtains nanocrystalline dispersion liquid；100 μ LSN-5027 dispersion liquids are added, it is described to receive
The hydroxyethyl cellulose colloidal sol that 3mL concentration is 0.01g/mL is added in the brilliant dispersion liquid of rice；
(6) processing of ITO or FTO electro-conductive glass, steps are as follows:
Ultrasonic cleaning processing: ITO or FTO electro-conductive glass is successively used into detergent, deionized water, dehydrated alcohol, in ultrasound
After starting the cleaning processing 10min respectively in device, takes out, dried in 80 DEG C of constant temperature oven；
Surface-active-treatment: will be by ultrasonic cleaning treated ITO or FTO electro-conductive glass is placed in oxygen plasma cleaning
In instrument, surface-active-treatment, operating power 200W, time 8min are carried out, the pressure for controlling the oxygen of operating room is
300Pa is handled well rear spare；
(7) ITO or FTO electro-conductive glass is placed in the thermal station that temperature is 120 DEG C, hydroxyethyl cellulose colloidal sol will be added
Nanocrystalline dispersant liquid drop is on ITO or FTO electro-conductive glass, the at the uniform velocity coated substrate of spreader for being 30 μm with scraper opening, to
Solvent is evaporated completely, and after natural cooling, obtains doping Li+Nanocrystalline electrochomeric films.
One kind of the invention prepares the preparation method of nickel oxide nano-crystal electrochromic device at low temperature, heavy based on liquid phase
The method in shallow lake prepares the nickel oxide nano-crystal of nano-scale, is a kind of side of simple and convenient preparation large area electrochromic layer
Method, film forming do not need carrying out high-temperature heat treatment later, the preparation suitable for flexible electro-chromic device；Loose porous film
Structure can store a large amount of ion, while electrochromism, moreover it is possible to the height of the depth instruction storage energy of color, together
The electric energy of Shi Nengyong storage can drive electrical appliance, accomplish more energy-efficient.
Claims (7)
1. the method that one kind prepares nickel oxide nano-crystal electrochomeric films at low temperature, which comprises the steps of:
(1) nickel salt is dissolved in solvent, clear solution is obtained after stirring, the substance withdrawl syndrome of the nickel salt is 0.1~1mol/
L；
Oxalic acid is dissolved in after stirring solvent and obtains oxalic acid solution, the substance withdrawl syndrome of the oxalic acid is 0.1~1mol/L；
Oxalic acid solution is instilled in clear solution with 0.05~0.0625ml/s, is sufficiently stirred to form light blue turbid solution；
Light blue turbid solution is aged and places 1h or more；Wherein, the solvent is deionized water or ethyl alcohol；
(2) the light blue turbid solution after taking ageing after being centrifugated 5~15min, removes supernatant, is washed, obtained with solvent
To precursor solution；Wherein, the solvent is deionized water or ethyl alcohol；
(3) precursor solution is placed in in 60~100 DEG C of drying equipment dry 6~for 24 hours, obtain presoma solid；
(4) presoma solid is placed in milling apparatus after being ground, is put into 360~400 DEG C of Equipment for Heating Processing and calcines
20~90min obtains nanocrystalline powder；
(5) nanocrystalline powder is placed in the dispersion liquid that concentration is 3~90mg/mL and is dispersed, obtain nanocrystalline dispersion liquid；Institute
Stating dispersion liquid is one or more of water, ethyl alcohol or acetone；
(6) processing of substrate, steps are as follows:
Ultrasonic cleaning processing: substrate is successively used to detergent, deionized water, acetone and ethyl alcohol, is carried out respectively in Vltrasonic device
After 5~10min of cleaning treatment, takes out, dried with drying equipment；
Surface-active-treatment: will carry out surface-active-treatment by ultrasonic cleaning treated substrate, spare；
(7) nanocrystalline dispersion liquid is taken on the transparency conducting layer for the substrate handled well, to be put into 70~80 by coating process film
DEG C drying equipment in dry 12h or more, obtain nanocrystalline electrochomeric films.
2. the method that one kind according to claim 1 prepares nickel oxide nano-crystal electrochomeric films at low temperature, special
Sign is that the concentration of clear solution and oxalic acid solution is calculated in molar ratio as 0.1~1 in step (1).
3. the method that one kind according to claim 1 prepares nickel oxide nano-crystal electrochomeric films at low temperature, special
Sign is that the partial size of nanocrystalline powder obtained in step (4) is 4~100nm.
4. the method that one kind according to claim 1 prepares nickel oxide nano-crystal electrochomeric films at low temperature, special
Sign is, Li is added in precursor solution described in step (2)+、Cu2+Or Al3+One or more of.
5. the method that one kind according to claim 1 prepares nickel oxide nano-crystal electrochomeric films at low temperature, special
Sign is, dispersing agent or thickener are added in dispersion liquid described in step (5), and wherein thickener includes inorganic thickening agent, fiber
One of plain ether, natural polymer and its derivative, synthesis macromolecule, solvay-type organo-metallic compound or printing thickening agent
Or it is several；Dispersing agent includes that (Plasmosan gathers for cellulose ether, SN-5027 dispersing agent or non-ionic water-soluble macromolecule
One or more of ether derivant or polyethylene glycol).
6. the method that one kind according to claim 1 prepares nickel oxide nano-crystal electrochomeric films at low temperature, special
Sign is that substrate is electro-conductive glass, flexible transparent conductive film in step (6)；The electro-conductive glass is ITO electro-conductive glass, FTO
Electro-conductive glass and AZO electro-conductive glass；The flexible transparent conductive film is silver nanowires flexible conductive film and ITO flexible and transparent
Conductive film.
7. the method that one kind according to claim 1 prepares nickel oxide nano-crystal electrochomeric films at low temperature, special
Sign is that coating process described in step (7) is electrodeposition process, knife coating, spray coating method.
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Cited By (3)
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| CN110627372A (en) * | 2019-09-30 | 2019-12-31 | 东北大学秦皇岛分校 | Method for preparing lithium titanate electrochromic film |
| CN113548809A (en) * | 2021-08-12 | 2021-10-26 | 合肥工业大学 | NiOxElectrochromic porous material and preparation method thereof |
| CN114380512A (en) * | 2022-01-21 | 2022-04-22 | 浙江大学 | Nickel oxide electrochromic film with high lithium storage capacity and preparation method and application thereof |
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