CN106899235B - A kind of droplet flow power generator and preparation method thereof - Google Patents
A kind of droplet flow power generator and preparation method thereof Download PDFInfo
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- CN106899235B CN106899235B CN201510974900.0A CN201510974900A CN106899235B CN 106899235 B CN106899235 B CN 106899235B CN 201510974900 A CN201510974900 A CN 201510974900A CN 106899235 B CN106899235 B CN 106899235B
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H02N3/00—Generators in which thermal or kinetic energy is converted into electrical energy by ionisation of a fluid and removal of the charge therefrom
Abstract
The invention discloses a kind of droplet flow power generator and preparation method thereof；Its device includes slide glass, electrode, flow electricity generation layer, hydrophobic layer and surface potential modified layer；Preparation method specifically: two electrodes not interacted mutually are formed on insulation slide glass by deposition or mode of printing, then one layer of flow electricity generation layer being made of solid micro-nano powder is formed by deposition or mode of printing between electrodes, specified flow electricity generation layer region is surface-treated again after being activated, forms hydrophobic layer and/or surface potential modified layer；Flow electricity generation layer by drop drop in the device, drop generation potential difference and electric current i.e. between flowing two electrodes radially in the flowing of flow electricity generation layer interior orientation.Preparation method provided by the invention can be by being modified flowing electric layer on demand, the characteristic for making it have hydrophobicity or surface potential being enabled to overturn, to change the power generator output voltage and sense of current and size.
Description
Technical field
The invention belongs to new energy equipment fields, more particularly, to a kind of droplet flow power generator and its system
Preparation Method.
Background technique
With the continuous reduction of traditional non-renewable energy such as fossil fuel, energy crisis is constantly aggravated, and fossil
Environmental problem brought by fuel combustion is also more and more prominent, thus the development and utilization about renewable and clean energy resource at
For the focal issue of whole mankind's development.
When a drop enters in porous material, can portion is flowed in the porous material under capillary force effect, during this
Potential difference and electric current can be generated in the flowing direction, and by the evaporation of liquid, can be mentioned in the case where liquid abundance
For endlessly capillary force for power generation, this electricity-generating method only consumes the environment thermal energy of a part of low product, but can produce
The voltage of raw Ford magnitude is a kind of mode of novel generation clean energy resource.But there are also following in practical applications for this method
Defect greatly limits its application effect: (1) when the flow direction of liquid in the porous material is distributed at random or not at one greatly
On body direction, whole generating efficiency will be greatly reduced or even be completely counterbalanced by counter current direction；(2) carbon particle
Limitation of the voltage and current that material is generated by flow electricity generation by porous material surface electrical behavior itself, output voltage it is smaller and
It can not adjust；(3) the series-parallel of the multiple devices of original device is inconvenient, and the utilization rate of power generation region is very low, whole
Generating efficiency is lower.
Summary of the invention
Aiming at the above defects or improvement requirements of the prior art, the present invention provides a kind of droplet flow power generator and its
Preparation method carries out hydrophobic treatment to flowing electric layer using surface modification means, solves liquid in flow electricity generation layer duct
The Controllability of flow direction.
To achieve the above object, according to one aspect of the present invention, a kind of preparation of droplet flow power generator is provided
Method specifically comprises the following steps:
(1) two electrodes parallel to each other are formed on insulation slide glass by deposition or mode of printing；
(2) a laminar flow electric layer is formed on insulation slide glass by deposition or mode of printing, the flow electricity generation layer covers
Two strip electrode of lid；Wherein, the material of flow electricity generation layer is solid micro-nano powder；
(3) product obtained to step (2) is annealed and is activated；
(4) product obtained to step (3), uses hydrophobic modification liquid by regions transform processed for hydrophobic layer；The quilt
Processing region refers to the flow electricity generation layer between two electrodes；
Wherein, region processed can be single area, can also be multiple regions；It is if single area, then parallel for two
Any subregion between electrode；If multizone processing, then to be parallel to each other and do not interact between two parallel poles
Multiple subregions；
Hydrophobic treatment modification is carried out by the partial region to flowing electric layer, forms local hydrophobic layer；Drop is dripped
In the intersection of flow electricity generation layer and hydrophobic layer, due to the hydrophobic property that hydrophobic layer has, drop can only be to non-hydrophobic layer side
To diffusion, realizes directed flow in the drop microchannel that solid micro-nano particle is constituted in flow electricity generation layer, solve liquid
Drip the Controllability in flow electricity generation intrastratal flow direction；It is steady to be generated between two electrodes for being located at flow direction radial direction
Fixed potential difference and electric current.
A kind of droplet flow power generator being prepared according to the method described above, including insulation slide glass, electrode, flow electricity generation
Layer and hydrophobic layer；Wherein, two mutually disjoint electrodes are located on insulation slide glass；Flow electricity generation layer is complete on insulation slide glass
Complete covers two electrodes；The material of flow electricity generation layer is solid micro-nano powder；Hydrophobic layer is located on flow electricity generation layer.
Purpose to realize the present invention, other side according to the invention provide a kind of droplet flow power generator
Preparation method specifically comprises the following steps:
(1) two electrodes parallel to each other are formed on insulation slide glass by deposition or mode of printing；
(2) a laminar flow electric layer is formed on insulation slide glass by deposition or mode of printing, the flow electricity generation layer covers
Two strip electrode of lid；The material of the flow electricity generation layer is solid micro-nano powder；
(3) product obtained to step (2) is annealed and is activated；
(4) pending area is carried out surface potential modification, in flow electricity generation layer by the product obtained to step (3)
Upper formation surface potential modified layer；
Wherein, pending area refers to that the one or more between flow electricity generation layer entire area or two parallel poles is parallel
In electrode but not interactive subregion.
Preferably, above-mentioned steps (4) specifically include following sub-step:
(4.1) some or all of the flow electricity generation layer of step (3) product obtained region is immersed in concentration is
It is reacted in 0.01%~10% water-soluble polymer solution；
(4.2) after step (4.1) product obtained being embathed, then it is water-soluble in the organic matter that concentration is 0.1%~10%
It reacts in liquid, and is dried after embathing, complete the preparation of surface potential modified layer；
A kind of droplet flow power generator that the above method is prepared, including insulation slide glass, electrode, flow electricity generation layer and
Surface potential modified layer；Wherein, two mutually disjoint electrodes are located on insulation slide glass；Flow electricity generation layer is in insulation slide glass
On, two electrodes are covered, the material of flow electricity generation layer is solid micro-nano powder；Surface potential modified layer is located at flow electricity generation layer
On.
Above-mentioned preparation method changes flow electricity generation layer solid particle layer in such a way that part or all of regional chemistry is modified
Surface potential characteristic, formed surface potential modified layer；Drop flows through potential difference caused by surface potential modified layer, with drop
It is contrary that concurrent crosses potential difference caused by flowing electric layer；When drop is in flow electricity generation layer and surface potential modified layer
Between when, diverging flow direction of the drop in two layers is just the opposite, and generate voltage be superimposed just, to improve power generation
The voltage of device output.
Preferably, it in above-mentioned preparation method, is used in step (4.1) and includes amino, hydroxyl, carboxyl or amido functionality
Water-soluble polymer solution, such as polyethyleneimine and its derivative, polyethylene glycol and its derivative, polyvinyl alcohol and its derivative
Object or polyimides and its derivative；
Using dialdehyde, more aldehyde, containing polyamino or containing the organic aqueous solution of polyhydroxy in step (4.2)；It is repaired by liquid phase
Decorations method carries out moditied processing to flowing electric layer, forms layer of surface potential modifier layer on the surface of flow electricity generation layer.
Preferably, a kind of preparation method of droplet flow power generator, it is further comprising the steps of (5): to use hydrophobic modification
Liquid handles the specified region between two parallel poles, changes flow electricity generation layer or surface potential in region processed
Property layer is changed into hydrophobic layer；
Wherein, specify region specific as follows:
(a) when being to carry out surface potential modifying and decorating to flowing electric layer entire area in step (4), then in this step
Region processed is single area or multiple subregions；
If single area processing, then processing region is any subregion between two parallel poles；If multizone
Processing, then processing region is the n sub-regions for being parallel to each other and not interacting between two parallel poles；n≥2；
(b) when be in step (4) to it is multiple be parallel to two electrodes but not interactive subregions to carry out surface potentials modified
When modification, then the processing region in this step is the subregion that multiple width are less than flow electricity generation layer and surface potential modified layer,
And the processing region does not span across any one region intersection.
Preferably, above-mentioned steps (5) are specific as follows:
(5) the specified region between two parallel poles, use concentration for 1%~10% perfluoro decyl triethoxysilicane
Alkane ethanol solution reacts 5~30 minutes at a temperature of 70 DEG C, is modified flow electricity generation layer or surface potential in region processed
Layer is changed into hydrophobic layer.
The power generator being prepared into according to the method described above, including insulation slide glass, electrode, flow electricity generation layer, hydrophobic layer and table
Face potential modifier layer；Flow electricity generation layer is made of solid micro-nano powder, is located on insulation slide glass, is covered two electrodes；Surface
Potential modifier layer is located on flow electricity generation layer mutually in not interactive subregion；Hydrophobic layer is located at flow electricity generation layer and/or surface electricity
On the modified layer of position, when hydrophobic layer is located on flow electricity generation layer and surface potential modified layer, hydrophobic layer does not span across flow electricity generation
The intersection of layer and surface potential modified layer；
The droplet flow power generator, not only can be by between hydrophobic layer and flow electricity generation layer or surface potential modified layer
Intersection regulate and control the flow direction of liquid, can also realize and flow in flow electricity generation layer and the intersection of surface potential modified layer
The superposition of dynamic voltage, further increases the output voltage of power generator, improves generating efficiency.
Preferably, in above-mentioned preparation method, the hydrophobic modification liquid used is comprising long chain alkane class, fatty acid, long-chain
The modification of alkyl silicon alkanes, chain alkyl chlorosilane, perfluoroalkyl silanes class, perfluoroalkyl chlorosilane or thio-alcohol etc. is molten
Liquid；It is formed after being chemically modified by gas phase or liquid phase method of modifying to flowing electric layer or surface potential modified layer hydrophobic
Layer.
Preferably, above-mentioned droplet flow power generator, flow electricity generation layer are by carbon black micro-nano granules, carbon nanotube, richness
Strangle one of alkene, graphene, graphene oxide, redox graphene, metal oxide micro-nano granules or a variety of accumulations
The porous structure made of.
Preferably, the average grain diameter for constituting the solid particle of flow electricity generation layer is adjusted, in the μ m of 10nm~100 to adjust
Flow control moves the average channel aperture in electric layer, and then regulates and controls drop in flow velocity wherein, and the output of power generator is regulated and controled with this
Voltage.
Preferably, above-mentioned droplet flow power generator, electrode is using materials with good conductivity such as carbon nanotube or metals.
Preferably, above-mentioned droplet flow power generator, the drop used that generates electricity is all made of polar solvent, to reach optimal electricity
Output effect is pressed to use pure water.
Preferably, it is above-mentioned the first in the third droplet flow power generator, hydrophobic layer covers all two electrodes, by
This can avoid the corrosion or electrochemical reaction that may occur between electrode and drop.
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) preparation method of droplet flow power generator provided by the invention, using surface modification means to flow electricity generation
Layer carries out hydrophobic modification processing, forms hydrophobic layer；So that drop can only be toward a side in flow electricity generation layer and hydrophobic layer intersection
To carrying out flowing diffusion, to solve in droplet flow power generation, drop in flow electricity generation layer duct flow direction it is controllable
Property problem；
(2) preparation method of droplet flow power generator provided by the invention passes through the solid particle to flowing electric layer
Surface chemical modification processing is carried out, surface potential modified layer is formed；So that the device prepared, has to output voltage size
And the ability of positive and negative regulation；
(3) preparation method of droplet flow power generator provided by the invention, preferred embodiment pass through to flowing electric layer
Region carries out, multizone modification and the combination of both the above method of modifying, so that the device prepared, that is, have hydrophobic layer,
There is surface potential modified layer again；The combination at a variety of interfaces is realized on flow electricity generation layer, realizes multiple streams in same device
Dynamic the series-parallel of subregion that generate electricity greatly improves the power generation region utilization rate and whole generating efficiency of flow electricity generation device,
The power output for generating voltage volts can be dripped by a dropping liquid；
(4) preparation method of droplet flow power generator provided by the invention, flow electricity generation layer pass through at annealing and activation
After reason, surface reaction activity enhancing, the hydrophobic modification and surface potential modification carry out to it can be in molecular level
It carries out, decorative material can form chemical bond with solid particles surface and be not easy to be eluted, and can maintain modification effect for a long time；Make
The device being prepared into has more stable performance.
Detailed description of the invention
Fig. 1 is the plan view and sectional view for the droplet flow power generator that the embodiment of the present invention 1 provides, and Fig. 1 (a) is plane
Figure, Fig. 1 (b) are sectional view；
Fig. 2 is the plan view and sectional view for the droplet flow power generator that the embodiment of the present invention 2 provides, and Fig. 2 (a) is plane
Figure, Fig. 2 (b) are sectional view；
Fig. 3 is the plan view and sectional view for the droplet flow power generator that the embodiment of the present invention 3 provides, and Fig. 3 (a) is plane
Figure, Fig. 3 (b) are sectional view；
In all the appended drawings, identical appended drawing reference is used to denote the same element or structure, in which: 1- slide glass, 2- electricity
Pole, 3- flow electricity generation layer, 4- hydrophobic layer, 5- surface potential modified layer.
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.
Embodiment 1
A kind of droplet flow power generator that embodiment 1 provides, plan view and sectional view are as schematically shown in Figure 1, including
Insulate slide glass 1, electrode 2, flow electricity generation layer 3 and hydrophobic modification layer 4；Wherein, Fig. 1 (a) is plan view, and Fig. 1 (b) is sectional view；
Preparation method is specific as follows:
(1) two carbon nanotube electrodes 2 parallel to each other are printed on insulation slide glass 1 by the way of printing；
(2) the slurry even print containing carbon nano-particle material on slide glass and is formed across the continuous of two strip electrodes
Pulp layer；Slurry by mass ratio be 1:1:10 carbon nano-particle material, adhesive and solvent using grinding or stir by the way of
It is uniformly mixed；
(3) pulp layer printed is made annealing treatment at 300~400 DEG C；It is formed after the completion of annealing by carbon nanometer
The porous flowing electric layer 3 of particle composition, porous flowing electric layer 3 and two electrodes 2 form access；
(4) three ethoxy of perfluoro decyl that concentration is 1%~10% is added dropwise in three pieces of regions corresponding to mark 4 in Fig. 1
Base silane ethanol solution reacts 5~30 minutes at 70 DEG C, the flow electricity generation layer 3 in region processed is made to be changed into hydrophobic layer
4；Thus the preparation of the power generator of droplet flow power generation is completed.
When the power generator that embodiment 1 is prepared into is applied to droplet flow power generation, drop drop is sent out in hydrophobic layer 4 and flowing
When the boundary of electric layer 3, drop can not infiltrate hydrophobic layer region, can only to flow electricity generation layer one direction diverging flow, with stream
Potential difference is generated between i.e. two electrodes on the parallel direction in dynamic direction；In addition, while droplet flow diffusion, due to evaporation
Effect makes the humidification zones of droplet formation reach balance being diffused into after the 2cm~5cm of initial position, as long as holding water droplet
With the presence of drop at source, the flowing that the drop in flow electricity generation layer 3 is just able to continuously generates between two electrodes 2 and continues
Potential difference and electric current.
In each position shown in figure one, the drop at boundary position A and C can be generated respectively by lower electrode to top electrode
0.5~1V or so voltage, since drop flows to identical at two, the voltage generated between two parallel poles 2 can be folded
Add to 1~2V, position B then can produce the opposite voltage of the size same direction with D.
Embodiment 2
The plan view and sectional view for a kind of droplet flow power generator that embodiment 2 provides are as shown in Fig. 2, Fig. 2 (a) is flat
Face figure, Fig. 2 (b) are sectional view；Including slide glass 1, electrode 2, flow electricity generation layer 3 and surface reforming layer 5.
Preparation method is specific as follows:
(1) two metal aluminium electrodes 2 parallel to each other are deposited on insulation slide glass 1 using the method for vapor deposition；
(2) the slurry brush containing carbon nano-particle material on insulation slide glass 1 and is formed across the continuous of two strip electrodes 2
Pulp layer；Wherein, slurry is 1.5:1:10 carbon nano-particle material, adhesive and solvent using grinding or stirring by mass ratio
Mode is uniformly mixed；
(3) pulp layer being completed for printing is made annealing treatment at 350 DEG C~450 DEG C；It is formed after annealing by carbon nanometer
The porous flowing electric layer 3 of particle composition, porous flowing electric layer 3 and two electrodes 2 form access；
(4) in plasma cleaner, under 100~200W power to step (3) product obtained carry out 30~
The air plasma of 100s bombards activation；
(5) at 70 DEG C, liquid phase method is used to be immersed in concentration to the half region of flowing electric layer 3 as 0.01%~10%
Aq. polyethyleneimine in, react 1h at 70 DEG C, placed into after using distilled water repeatedly to embathe 70 DEG C of concentration for
1h is reacted in 0.1%~10% glutaraldehyde water solution；It is dried after distilled water embathes, forms surface potential in processing region
The surface potential modified layer 5 opposite with the flow electricity generation layer of script carbon nano-particle composition；In this step, specific surface is modified
Layer processing region is as shown in mark 5 in Fig. 2；Surface potential modified layer is collectively formed with flow electricity generation layer and electrode and insulation slide glass
The power generator of droplet flow power generation；
The power generator that embodiment 2 is prepared into be applied to droplet flow generate electricity when, by liquid be added dropwise flow electricity generation layer 3 with
The intersection of surface potential modified layer 5, drop carry out infiltration spread flowing to 2 direction of two end electrodes simultaneously；Due to surface potential
Modified layer 5 is just the opposite by modified surface potential and flow electricity generation layer 3；The opposite flow direction of drop is so that in two electrodes
The voltage generated between 2 is superimposed in the same direction just；In addition, spreading in droplet flow simultaneously as evaporation, makes the wet of droplet formation
Profit region reaches balance being diffused into after the 2cm~5cm of initial position, as long as keeping flowing at water droplet source with the presence of liquid
The flowing that dynamic electric layer 3 is just able to continuously with the drop in surface potential modified layer 5, generates lasting between two electrodes 2
The up to voltage of 3~5V.
Embodiment 3
The plan view and sectional view for a kind of droplet flow power generator that embodiment 3 provides are as shown in figure 3, Fig. 3 (a) is flat
Face figure, Fig. 3 (b) are sectional view；Including slide glass 1, electrode 2, flow electricity generation layer 3, hydrophobic layer 4 and surface potential modified layer 5.
Preparation method is specific as follows:
(1) two carbon nanotube electrodes 2 parallel to each other are printed on insulation slide glass 1；
(2) the slurry brush containing carbon nano-particle material is formed across the pantostrat of two strip electrodes on insulation slide glass；
Wherein, slurry is that 1.5:1:10 carbon nano-particle material, adhesive and solvent are equal by the way of grinding or stirring by mass ratio
It is even to mix；
(3) pulp layer being completed for printing is made annealing treatment at 350 DEG C~450 DEG C, is formed after the completion of annealing by carbon
The porous flowing electric layer 3 of nano particle composition, porous flowing electric layer 3 and two electrodes 2 form access；
(4) in plasma cleaner, the air plasma of 30~100s is carried out to device under 100~200W power
Bombardment activation；
(5) liquid phase method is used to the wherein half of flowing electric layer at 70 DEG C, concentration be 0.01%~10% it is poly-
In aziridine aqueous solution, react 1h at 70 DEG C, placed into after using distilled water repeatedly to embathe 70 DEG C of concentration for 0.1%~
1h is reacted in 10% glutaraldehyde water solution, is dried after distilled water embathes；Form surface potential and script carbon nano-particle
The opposite surface potential modified layer 5 of the flow electricity generation layer 3 of composition；
(6) it at 110~150 DEG C, to region shown in the mark 4 in Fig. 3, is carried out at hydrophobic modification using vapor phase method
Reason；Decorating liquid uses n-dodecane base trichlorosilane solution；Hydrophobic layer is formed by modification, hydrophobic layer is not by the leaching of drop liquid
Profit, drop can not pass through from the porous structure in the region, shape between hydrophobic layer 4 and surface reforming layer 5 and flow electricity generation layer 3
At multiple interfaces.
The power generator for the droplet flow power generation that embodiment 3 is prepared into, when being applied to droplet flow power generation, (1) is if by liquid
Drop drips the boundary in hydrophobic layer 4 and flow electricity generation layer 3, and drop will be unable to infiltration hydrophobic layer 4, can only be single to flow electricity generation layer 3
Direction diverging flow；It therefore is to generate potential difference between two electrodes 2 on the parallel direction in flow direction；Similarly hydrophobic
Layer 4 also have identical phenomenon with the boundary of surface reforming layer 5 but the voltage direction that generates just in contrast；
(2) intersection in flow electricity generation layer 3 and surface potential modified layer 5 is added dropwise in drop, drop is simultaneously to both ends electricity
2 direction of pole carries out infiltration spread flowing, since surface potential modified layer 5 is by modified surface potential and flow electricity generation layer 3
Just the opposite, the opposite flow direction of drop is so that the voltage generated between two electrodes 2 is superimposed in the same direction just；
Multiple drops are added dropwise in the different interfaces for the power generator that embodiment 3 provides so that generate between two electrodes 2 big
Voltage and current；After drop is added dropwise simultaneously everywhere in A, C, E, G in Fig. 3, generated between two electrodes 2 electric under best from powering on
The forward voltage of pole, voltage may be up to 5~10V；
Drop is added dropwise at B, D, F simultaneously, also can produce the close contrary voltage of size；In addition, in liquid flow
Dynamic diffusion is simultaneously as evaporation, the humidification zones of droplet formation reach after being diffused at the 2cm~5cm of initial position
To balance, as long as the flowing for keeping at water droplet source the drop with the presence of liquid, in each layer to be able to continuously, in two electrodes
Lasting voltage and current is generated between 2.
The droplet flow power generator that above embodiments provide can be run at normal temperatures and pressures, and performance is sent out by selected flowing
Environment temperature and humidity when electric layer material, liquid property, surface potential modification selected materials and test etc. influence liquid
The condition of evacuator body flowing velocity influences.
Simple test is carried out to the power generator performance that above-mentioned 3 embodiments are prepared into, specific as follows:
Apply the power generator that example 1 is prepared into, flow electricity generation layer having a size of 1cm*5cm, electrode size 1cm*0.3cm, with
Carbon black pellet film is flow electricity generation layer, using water as droplet flow matter；It is 1 micro- by two drop volumes under 24 DEG C of room temperature and normal pressure
The drop risen is added dropwise respectively at the position shown in Figure 1A and C, and the potential difference of 1~1.6V can be generated between two electrodes；
The power generator that embodiment 2 is prepared into, flow electricity generation layer having a size of 1cm*5cm, electrode size 1cm*0.3cm,
Using carbon black pellet film as flow electricity generation layer；It is 1 by a drop volume under 24 DEG C of room temperature and normal pressure using water as droplet flow matter
Microlitre drop be added dropwise in the interface of flow electricity generation layer 3 and surface potential modified layer 5, can generate 2~4V's between two electrodes
Potential difference；
The power generator that embodiment 3 is prepared into, flow electricity generation layer having a size of 1cm*5cm, electrode size 1cm*0.3cm,
Using carbon black pellet film as flow electricity generation layer；It is 1 by three drop volumes under 24 DEG C of room temperature and normal pressure using water as droplet flow matter
Microlitre drop be added dropwise at the position shown in B, D and F respectively, the potential difference of 5~10V can be generated between two electrodes.
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 (11)
1. a kind of preparation method of droplet flow power generator, which is characterized in that the preparation method specifically comprises the following steps:
(1) two electrodes parallel to each other are formed on insulation slide glass by deposition or mode of printing；
(2) a laminar flow electric layer, the flow electricity generation layer covering two are formed on insulation slide glass by deposition or mode of printing
Strip electrode；The material of the flow electricity generation layer is solid micro-nano powder；
(3) product obtained to step (2) is annealed and is activated；
(4) product obtained to step (3), it is thin for using hydrophobic modification liquid to pass through gas phase method of modifying for regions transform processed
Water layer, so that drop drop is in hydrophobic layer and flow electricity generation layer intersection, drop can only be to flow electricity generation layer one direction diffusion flow
It moves to generate electricity；The region processed refers to the flow electricity generation layer between two electrodes；
The region processed can be single area, can also be multiple regions；If single area, then for two parallel poles it
Between any subregion；If multizone processing, then to be parallel to each other between two parallel poles and not interactive multiple
Subregion.
2. preparation method as described in claim 1, which is characterized in that the hydrophobic modification liquid is to include long chain alkane class, rouge
Fat acids, long chain alkyl silane class, chain alkyl chlorosilane, perfluoroalkyl silanes class, perfluoroalkyl chlorosilane or mercaptan
The modification solution of class.
3. a kind of preparation method of droplet flow power generator, which is characterized in that the preparation method specifically comprises the following steps:
(1) two electrodes parallel to each other are formed on insulation slide glass by deposition or mode of printing；
(2) a laminar flow electric layer, the flow electricity generation layer covering two are formed on insulation slide glass by deposition or mode of printing
Strip electrode；The material of the flow electricity generation layer is solid micro-nano powder；
(3) product obtained to step (2) is annealed and is activated；
(4) pending area is modified method by liquid phase and carries out surface potential modification by the product obtained to step (3),
Surface potential modified layer is formed on flow electricity generation layer, so that drop drop is in flow electricity generation layer and surface potential modified layer intersection
When, drop is diffused flowing to two end electrodes are two-way simultaneously to generate electricity；
The pending area refers to one or more between two parallel poles on flow electricity generation layer entire area or flow electricity generation layer
It is a to be parallel to electrode but not interactive subregion.
4. preparation method as claimed in claim 3, which is characterized in that the step (4) is specific as follows:
(4.1) some or all of the flow electricity generation layer of step (3) product obtained region is immersed in concentration is 0.01%
It is reacted in~10% water-soluble polymer solution；
(4.2) after step (4.1) product obtained being embathed, then in the organic aqueous solution that concentration is 0.1%~10%
Reaction, and dried after embathing, complete the preparation of surface potential modified layer.
5. preparation method as claimed in claim 4, which is characterized in that in the preparation method, in step (4.1) using comprising
Amino, hydroxyl, carboxyl or the water-soluble polymer solution of amido functionality, step (4.2) is middle to use dialdehyde, more aldehyde, containing more
Amino or organic aqueous solution containing polyhydroxy；Moditied processing is carried out to flowing electric layer by liquid phase method of modifying, is being flowed
The surface of electric layer forms layer of surface potential modifier layer.
6. preparation method as claimed in claim 3, which is characterized in that it further include step (5), specific as follows:
Using hydrophobic modification liquid, the specified region between two parallel poles is handled, sends out the flowing in region processed
Electric layer or surface potential modified layer are changed into hydrophobic layer；
The specified region is specific as follows:
(a) when being to carry out surface potential modification to flowing electric layer entire area in the step (4), then in this step
Region processed is single area or multiple subregions；
If single area processing, then processing region is any subregion between two parallel poles；It is handled if multizone,
Then processing region is the n sub-regions for being parallel to each other and not interacting between two parallel poles；n≥2；
(b) when being to be parallel to two electrodes but not interactive flow electricity generation sub-regions carry out surfaces electricity to multiple in step (4)
When the modification of position, then the processing region in this step is the son that multiple width are less than flow electricity generation layer and surface potential modified layer
Region, and the processing region does not span across any one region intersection.
7. preparation method as claimed in claim 6, which is characterized in that the step (5) is specific as follows:
Specified region between two parallel poles, use concentration for 1%~10% perfluoro decyl triethoxysilane ethyl alcohol
Solution reacts 5~30 minutes at a temperature of 70 DEG C, makes flow electricity generation layer or the transformation of surface potential modified layer in region processed
For hydrophobic layer.
8. preparation method as claimed in claim 6, which is characterized in that the hydrophobic modification liquid is to include long chain alkane class, rouge
Fat acids, long chain alkyl silane class, chain alkyl chlorosilane, perfluoroalkyl silanes class, perfluoroalkyl chlorosilane or mercaptan
The modification solution of class；After being chemically modified by gas phase or liquid phase method of modifying to flowing electric layer or surface potential modified layer
Form hydrophobic layer.
9. a kind of -2 described in any item preparation method droplet flow power generator obtained according to claim 1, feature
It is, including insulation slide glass, two mutually disjoint electrodes, flow electricity generation layer and hydrophobic layer on insulation slide glass；It is described
Flow electricity generation layer is made of solid micro-nano powder, is located on insulation slide glass, is covered two electrodes；Hydrophobic layer is located at flow electricity generation
On layer.
10. a kind of according to the described in any item preparation methods of claim 3-5 droplet flow power generator obtained, feature
It is, including insulation slide glass, two mutually disjoint electrodes, flow electricity generation layer and surface potential modification on insulation slide glass
Layer；The flow electricity generation layer is made of solid micro-nano powder, is located on insulation slide glass, is covered two electrodes；The surface electricity
Position modified layer is located on flow electricity generation layer.
11. a kind of according to the described in any item preparation methods of claim 6-8 droplet flow power generator obtained, feature
It is, including insulation slide glass, two mutually disjoint electrodes, flow electricity generation layer, hydrophobic layer and surface on insulation slide glass
Potential modifier layer；The flow electricity generation layer is made of solid micro-nano powder, is located on insulation slide glass, is covered two electrodes；Institute
It states surface potential modified layer to be located on flow electricity generation layer mutually in not interactive subregion, the hydrophobic layer is located at flow electricity generation layer
And/or in surface potential modified layer.
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| CN110289787B (en) * | 2019-06-12 | 2020-07-28 | 同济大学 | Magnetic control fluid motion power generation device and preparation method thereof |
| CN112152510B (en) * | 2020-09-25 | 2021-08-03 | 大连理工大学 | Thermal charge power circulation system with liquid drops as carriers |
| TWI778656B (en) * | 2021-06-09 | 2022-09-21 | 國立臺灣科技大學 | Flexible long-term clean energy power generation device with spontaneous moisture absorption |
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