CN108922785A - A kind of preparation method of dye-sensitized solar cells to electrode material - Google Patents
A kind of preparation method of dye-sensitized solar cells to electrode material Download PDFInfo
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
- H01G9/00—Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
- H01G9/20—Light-sensitive devices
- H01G9/2022—Light-sensitive devices characterized by he counter electrode
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/542—Dye sensitized solar cells
Abstract
The invention belongs to green renewable and clean energy resource preparation technical fields, and in particular to a kind of preparation method of dye-sensitized solar cells to electrode material.The present invention is with emulsifier op-10, atoleine etc. is that raw material obtains oil-in-water emulsion, by oil-in-water emulsion and non-hydrate sodium metasilicate solution hybrid reaction, it obtains to electrode slurry, sediment will be collected to electrode slurry refrigerated centrifuge to mix with dispersion gel shape coating and be sprayed at FTO conductive glass surface, dye-sensitized solar cells is obtained to electrode material, the present invention blocks the exit orifice of organic dispersion carbon nanotubes by tungsten carbide, improve the electro-catalysis efficiency to electrode material, using single sweep polarographic wave to carbon nano-tube material surface modification, reduce the heat loss through convection to electrode material, more conducively photoelectric conversion energy storage, the titanium dioxide being added in coating, play the role of photoextinction and increases the specific surface area on surface, improve the photoelectric conversion efficiency of electrode material, it has broad application prospects.
Description
Technical field
The invention belongs to green renewable and clean energy resource preparation technical fields, and in particular to a kind of dye sensitization of solar electricity
Preparation method of the pond to electrode material.
Background technique
With the rapid development of society, demand of the mankind to the energy increasingly increases, however, exhaustive exploitation and use fossil energy
Energy crisis caused by source and problem of environmental pollution gradually display, and continue as restriction economy and society at present,
The primary factor of sound development.Therefore, Renewable Energy Development is one of the effective way to solve the above problems.Solar energy conduct
One of a kind of natural green energy of inexhaustible, nexhaustible, pollution-free cleaning, and become the most promising energy.
Dye-sensitized solar cells is a kind of novel solar battery, compared with traditional silicon solar cell, by
In extensive with raw material sources, at low cost, theoretical conversion efficiencies are high, can many advantages, such as generating electricity at cloudy day or indoor light source,
Product of attracting attention as novel solar battery.Dye-sensitized solar cells mainly includes light anode, dyestuff, electrolyte and right
The parts such as electrode.Wherein to electrode as core, main function is collected to be transmitted from light anode through external circuit
Electronics, and electron transmission is made into its reducing/regenerating to electrolyte, in addition to this, catalytic action is also acted as to electrode, accelerates electrolysis
Electron exchange rate in matter between oxidation-reduction pair and cathode, and then improve the globality of dye-sensitized solar cells
Energy.In general, following condition is needed to have to electrode material：
（1）Good stability does not react with the substance in electrolyte；
（2）Good electric conductivity；
（3）There is preferable catalytic capability to electrolyte.
Dye-sensitized solar cells is platinum to the most common catalyst of electrode at present, and other common materials have carbon material
Material, conducting polymer and carbide, sulfide and the nitride of transition metal etc..Platinum have good conductive property with it is superior
Electrocatalysis characteristic is that present dye-sensitized solar cells is the most commonly used to electrode material.But platinum is to electrode in long-term work
During will receive the erosion of electrolyte and lead to the reduction of battery efficiency, while platinum is as a kind of precious metal material, expensive
Price be unfavorable for the industrialization production of dye-sensitized solar cells.In order to further reduce the cost, in recent years, both at home and abroad not
Same research institution is concentrated mainly on non-platinum to the research and development of electrode material to dye-sensitized solar cells and urges electrode
Change material（Such as carbon material, conducting polymer）On.But the caking property of carbon material and conductive substrates is poor, and conductive film holds
It easily falls off from conductive substrates, influences the stability of battery；The thermal stability of conducting polymer materials is poor, and resistance to corrosion is poor,
Incident photon-to-electron conversion efficiency is all more relatively low, and repeatability and stability is not good enough, hinders this kind of material in chemistry and electrochemical field
Further genralrlization application.Carbon nanomaterial price is low, and performance is stablized, and conductivity is high and electro catalytic activity is good, thus by with
Work has obtained extensive research to electrode.But carbon nanomaterial is easy to reunite, and reduces its electricity to a certain extent
Therefore chemical property is limited use scope.
Therefore, on the basis of overcoming disadvantages mentioned above, exploitation high-performance, high efficiency, low cost, long-time stability are replaced
It is the important channel for promoting dye-sensitized solar cells industrialization process for platinum electrode catalysis material.
Summary of the invention
Present invention mainly solves the technical issues of, for the most of Pt classes developed at present to electrode catalytic materials,
Incident photon-to-electron conversion efficiency is relatively low, is easy to reunite when carbon nanomaterial is applied to electrode material, to the electro-catalysis efficiency of electrode material
Lower defect provides a kind of dye-sensitized solar cells to the preparation method of electrode material.
In order to solve the above-mentioned technical problem, the technical scheme adopted by the invention is that：
The preparation method of a kind of dye-sensitized solar cells to electrode material, it is characterised in that specific preparation step is：
（1）It takes 12~15g paranitroanilinum to be placed in a beaker, the hydrochloric acid that 35~40mL mass fraction is 20% is added, heating rises
Temperature, insulated and stirred is until solids is completely dissolved, then is placed the beaker and cooled down rapidly under condition of ice bath, with 300~400r/min
Revolving speed stir and be added 40~50mL sodium nitrite in aqueous solution, react, then into beaker be added 4~5g sulfamic acid after, take out
Filter, isolated filtrate, as single sweep polarographic wave solution；
（2）It takes 10~12g multiple-wall carbon nanotube to be placed in three-necked flask, 200~300mL deionized water is added, by three-necked flask
It is placed in ultrasonic disperse instrument, 30~35min of ultrasonic disperse, 40~50mL p-nitrophenyl is added dropwise into three-necked flask with dropping funel
Amine diazonium salt solution and 4~5g tungsten carbide are reacted when being added dropwise, until filter reaction solution in three-necked flask after being added dropwise,
Successively filter residue is cleaned 3~4 times with deionized water, dehydrated alcohol, until filtrate, in colourless, collection obtains filtrate；
（3）Above-mentioned filtrate is placed in Rotary Evaporators, 10~15min is rotated with the revolving speed of 80~90r/min, obtains organic point
Carbon nanotubes is dissipated, 10~15g polyethylene glycol 10000 and 100~120mL toluene are added into four-hole boiling flask, heating, stirring is to admittedly
Body dissolution, then cool down, 0.8~1.0g Toluene-2,4-diisocyanate, 4- diisocyanate and 0.4~0.5mL dibutyl tin dilaurate is added, instead
It answers, then heats up, react, the organic dispersion carbon nanotubes of 30~40g is added, is mixed to get dispersion gel shape coating；
（4）40~45mL atoleine, 10~12mL emulsifier op-10,200~220mL hydrochloric acid are placed in three-necked flask, opened
Dynamic blender, is stirred with the revolving speed of 250~300r/min, it is inclined that nine water of 200mL is added dropwise into three-necked flask with constant pressure funnel
Sodium silicate solution is stirred to react, cooled to room temperature, and discharging is obtained to electrode slurry；
（5）Above-mentioned dispersion gel shape coating is put into high speed freezing centrifuge centrifugal treating, is stood, sediment is collected, will precipitate
Object, electrode slurry, titanium dioxide mixing, obtain gel coating, and with spray gun, gel coating is sprayed at FTO conductive glass surface,
Photoelectric conversion electrode film is formed, obtains dye-sensitized solar cells to electrode material.
Step（1）The mass fraction of the hydrochloric acid is 20%, and temperature is 70~80 DEG C after heat temperature raising, and beaker is placed in ice
Temperature is 0~5 DEG C after cooling down rapidly under the conditions of bath, and the mass fraction of sodium nitrite in aqueous solution is 5%, the reaction time is 30~
35min。
Step（2）Temperature is 50~55 DEG C when the described ultrasonic disperse, and supersonic frequency is 25~30kHz, dropping funel drop
Rate of acceleration is 3~4mL/min.
Step（3）Temperature is 80~85 DEG C when the described rotary evaporation, and four-hole boiling flask temperature after heating is 70~80 DEG C, then
Temperature is 40~50 DEG C after cooling, and the reaction time is 4~5h, then temperature is 70~75 DEG C after heating up, the reaction time is 10~
12h。
Step（4）The mass fraction of the hydrochloric acid is 5%, and the drop rate of constant pressure funnel is 2~3mL/min, nine
The mass fraction of water sodium metasilicate solution is 40%, and being stirred to react the time is 2~3h.
Step（5）The high speed freezing centrifuge revolving speed be 5000~7000r/min, the centrifugal treating time be 10~
30min, time of repose be 3~4h, sediment, electrode slurry, titanium dioxide mixing mass ratio be 6 ︰, 2 ︰ 1, spray gun bore be 1.0~
1.5mm, control nozzle distance FTO electro-conductive glass vertical range are 15~20cm, and spray pressure is 0.15~0.30MPa, photoelectricity
Conversion electrode film thickness is 0.1~0.2mm.
The beneficial effects of the invention are as follows：
（1）The present invention is by emulsifying obtains water in a heated state after emulsifier op-10, atoleine, hydrochloric acid acidification dissolution
Packet fat liquor obtains oil-in-water emulsion and non-hydrate sodium metasilicate solution hybrid reaction to electrode slurry, will be cold to electrode slurry
Sediment is collected by centrifugation in jelly and dispersion gel shape coating is mixed to form gel gel coating and is sprayed at FTO electro-conductive glass table
Face forms photoelectric conversion electrode film, obtains dye-sensitized solar cells to electrode material, photoelectric conversion electrode film of the invention
In be distributed in by atoleine and polyethylene glycol 10000 in the pore structure of organic dispersion carbon nanotubes, form hot phase transformation capsule knot
Structure blocks the exit orifice of organic dispersion carbon nanotubes by tungsten carbide, after the solidification of photoelectric conversion electrode film as electro catalytic activity agent
Adhere to electro catalytic activity agent on organic dispersion carbon nanotubes surface, forms composite electro catalytic material, improve to electrode material
Electro-catalysis efficiency, thus it is of the invention electrode material is passed through and using single sweep polarographic wave to carbon nano-tube material table
Face modification introduces p-nitrophenyl on its surface, it is made to have good dispersion in gel coating by radical reaction
Property, not easy to reunite, wherein carbon nano-tube material improves after modification with the compatibilities of other organic principles, and due to it
High-termal conductivity and high-specific surface area keep the distribution of hot phase change material in phase-change material more uniform, reduce pair to electrode material
Flow heat dissipation, more conducively photoelectric conversion energy storage；
（2）The present invention is based on the support setting functions of hard section in linear polymeric skeleton, and using polyethylene glycol as soft segment, there are two tools
Equal reaction active groups（Hydroxyl and amino）Dye molecule be that hard section by Step Condensation method it is organic to have synthesized photothermal conversion
Setting phase change energy storage material, the phase transition temperature for realizing material is adjustable, fixed phase change energy storage, high energy storage density, uses Gao Qian
The atoleine easily undergone phase transition under hot polyethylene glycol 10000 and room temperature, the hot phase change structure material for forming surface have height
Energy storage efficiency and potential heat value are added titanium dioxide in present invention gained coating, on the one hand play photoextinction, reduce in electrode material
The heat loss of light reflection, another aspect titanium dioxide can be with as silica in photo-thermal absorbing catalyst and hot phase-change microcapsule
It is compound, Ti-O-Si key hinder it is intergranular contact with each other, crystal form and grain growth are suppressed, and become titanium dioxide surface
Must be relatively rough, intercrystalline pore structure also increases, and defect increases and increases the specific surface area on surface, absorbs the area of photo-thermal
Increase, and titanium dioxide forbidden band energy gap made to narrow, generate red shift, makes titanium dioxide that the luminous energy of conversion more long-wave band can be absorbed,
The photoelectric conversion efficiency for improving electrode material, has broad application prospects.
Specific embodiment
It takes 12~15g paranitroanilinum to be placed in a beaker, the hydrochloric acid that 35~40mL mass fraction is 20% is added, heating rises
Temperature is to 70~80 DEG C, and insulated and stirred is until solids is completely dissolved, then is placed the beaker and be rapidly cooled to 0~5 under condition of ice bath
DEG C, the sodium nitrite in aqueous solution that 40~50mL mass fraction is 5%, reaction 30 are stirred and are added with the revolving speed of 300~400r/min
~35min, then filtered, isolated filtrate, as single sweep polarographic wave after addition 4~5g sulfamic acid into beaker
Solution；It takes 10~12g multiple-wall carbon nanotube to be placed in three-necked flask, 200~300mL deionized water is added, three-necked flask is set
In ultrasonic disperse instrument, 30~35min is dispersed with the frequency ultrasound of 25~30kHz under the conditions of temperature is 50~55 DEG C, with drop
40~50mL single sweep polarographic wave solution and 4~5g carbon are added dropwise into three-necked flask with the rate of 3~4mL/min for liquid funnel
Change tungsten, react when being added dropwise, after be added dropwise, reaction solution in three-necked flask is filtered, with deionized water, dehydrated alcohol according to
It is secondary that filter residue is cleaned 3~4 times, until filtrate, in colourless, collection obtains filtrate；Above-mentioned filtrate is placed in Rotary Evaporators,
10~15min is rotated with the revolving speed of 80~90r/min under the conditions of 80~85 DEG C, obtains organic dispersion carbon nanotubes, is burnt to four mouthfuls
10~15g polyethylene glycol 10000 and 100~120mL toluene are added in bottle, is heated to 70~80 DEG C, stirring to solid is dissolved, then
40~50 DEG C are cooled to, 0.8~1.0g Toluene-2,4-diisocyanate, 4- diisocyanate and 0.4~0.5mL dibutyl tin dilaurate is added,
4~5h is reacted, then is warming up to 70~75 DEG C, reacts 10~12h, the organic dispersion carbon nanotubes of 30~40g is added, is mixed to get point
Dissipate gel coating；It is 5% by 40~45mL atoleine, 10~12mL emulsifier op-10,200~220mL mass fraction
Hydrochloric acid is placed in three-necked flask, starts blender, is stirred with the revolving speed of 250~300r/min, with constant pressure funnel with 2~
The non-hydrate sodium metasilicate solution that 200mL mass fraction is 40% is added dropwise into three-necked flask for the drop rate of 3mL/min, and stirring is anti-
2~3h, cooled to room temperature are answered, discharging is obtained to electrode slurry；It is 5000 that above-mentioned dispersion gel shape coating, which is put into revolving speed,
10~30min of centrifugal treating in the high speed freezing centrifuge of~7000r/min, stand 3~4h, collect sediment, by sediment,
Electrode slurry, titanium dioxide are 6 ︰, 2 ︰ 1 mixing in mass ratio, obtain gel coating, the spray gun for being 1.0~1.5mm with bore, control
Nozzle distance FTO electro-conductive glass vertical range processed is 15~20cm, is sprayed at the pressure gel shape coating of 0.15~0.30MPa
FTO conductive glass surface forms the photoelectric conversion electrode film of 0.1~0.2mm, obtains dye-sensitized solar cells to electrode material
Material.
It takes 12g paranitroanilinum to be placed in a beaker, the hydrochloric acid that 35mL mass fraction is 20% is added, is heated to 70 DEG C,
Insulated and stirred is until solids is completely dissolved, then is placed the beaker and be rapidly cooled to 0 DEG C under condition of ice bath, with turning for 300r/min
Speed stirs and is added the sodium nitrite in aqueous solution that 40mL mass fraction is 5%, reacts 30min, then 4g amino sulphur is added into beaker
After acid, filter, isolated filtrate, as single sweep polarographic wave solution；10g multiple-wall carbon nanotube is taken to be placed in three-necked flask
In, 200mL deionized water is added, three-necked flask is placed in ultrasonic disperse instrument, with the frequency of 25kHz under the conditions of temperature is 50 DEG C
40mL single sweep polarographic wave is added dropwise into three-necked flask with the rate of 3mL/min with dropping funel by rate ultrasonic disperse 30min
Solution and 4g tungsten carbide reacts when being added dropwise, and after be added dropwise, reaction solution in three-necked flask is filtered, with deionized water,
Dehydrated alcohol successively cleans filter residue 3 times, until filtrate, in colourless, collection obtains filtrate；Above-mentioned filtrate is placed in rotary evaporation
In instrument, 10min is rotated with the revolving speed of 80r/min under the conditions of 80 DEG C, obtains organic dispersion carbon nanotubes, added into four-hole boiling flask
Enter 10g polyethylene glycol 10000 and 100mL toluene, be heated to 70 DEG C, stirring to solid is dissolved, then is cooled to 40 DEG C, and 0.8g is added
Toluene-2,4-diisocyanate, 4- diisocyanate and 0.4mL dibutyl tin dilaurate react 4h, then are warming up to 70 DEG C, react 10h, are added
The organic dispersion carbon nanotubes of 30g, is mixed to get dispersion gel shape coating；By 40mL atoleine, 10mL emulsifier op-10,
The hydrochloric acid that 200mL mass fraction is 5% is placed in three-necked flask, starts blender, is stirred with the revolving speed of 250r/min, is used constant pressure
It is molten that the non-hydrate sodium metasilicate that 200mL mass fraction is 40% is added dropwise with the drop rate of 2mL/min into three-necked flask for dropping funel
Liquid, is stirred to react 2h, cooled to room temperature, and discharging is obtained to electrode slurry；Above-mentioned dispersion gel shape coating is put into revolving speed
For centrifugal treating 10min in the high speed freezing centrifuge of 5000r/min, 3h is stood, sediment is collected, by sediment, electrode slurry
Material, titanium dioxide are 6 ︰, 2 ︰ 1 mixing in mass ratio, obtain gel coating, and the spray gun for being 1.0mm with bore controls nozzle distance
FTO electro-conductive glass vertical range is 15cm, is sprayed at FTO conductive glass surface with the pressure gel shape coating of 0.15MPa, is formed
The photoelectric conversion electrode film of 0.1mm, obtains dye-sensitized solar cells to electrode material.
It takes 13g paranitroanilinum to be placed in a beaker, the hydrochloric acid that 37mL mass fraction is 20% is added, is heated to 75 DEG C,
Insulated and stirred is until solids is completely dissolved, then is placed the beaker and be rapidly cooled to 3 DEG C under condition of ice bath, with turning for 350r/min
Speed stirs and is added the sodium nitrite in aqueous solution that 45mL mass fraction is 5%, reacts 33min, then 4g amino sulphur is added into beaker
After acid, filter, isolated filtrate, as single sweep polarographic wave solution；11g multiple-wall carbon nanotube is taken to be placed in three-necked flask
In, 250mL deionized water is added, three-necked flask is placed in ultrasonic disperse instrument, with the frequency of 27kHz under the conditions of temperature is 53 DEG C
45mL single sweep polarographic wave is added dropwise into three-necked flask with the rate of 3mL/min with dropping funel by rate ultrasonic disperse 33min
Solution and 4g tungsten carbide reacts when being added dropwise, and after be added dropwise, reaction solution in three-necked flask is filtered, with deionized water,
Dehydrated alcohol successively cleans filter residue 3 times, until filtrate, in colourless, collection obtains filtrate；Above-mentioned filtrate is placed in rotary evaporation
In instrument, 13min is rotated with the revolving speed of 85r/min under the conditions of 83 DEG C, obtains organic dispersion carbon nanotubes, added into four-hole boiling flask
Enter 13g polyethylene glycol 10000 and 110mL toluene, be heated to 75 DEG C, stirring to solid is dissolved, then is cooled to 45 DEG C, and 0.9g is added
Toluene-2,4-diisocyanate, 4- diisocyanate and 0.4mL dibutyl tin dilaurate react 4h, then are warming up to 73 DEG C, react 11h, are added
The organic dispersion carbon nanotubes of 35g, is mixed to get dispersion gel shape coating；By 43mL atoleine, 11mL emulsifier op-10,
The hydrochloric acid that 210mL mass fraction is 5% is placed in three-necked flask, starts blender, is stirred with the revolving speed of 270r/min, is used constant pressure
It is molten that the non-hydrate sodium metasilicate that 200mL mass fraction is 40% is added dropwise with the drop rate of 2mL/min into three-necked flask for dropping funel
Liquid, is stirred to react 2h, cooled to room temperature, and discharging is obtained to electrode slurry；Above-mentioned dispersion gel shape coating is put into revolving speed
For centrifugal treating 20min in the high speed freezing centrifuge of 6000r/min, 3h is stood, sediment is collected, by sediment, electrode slurry
Material, titanium dioxide are 6 ︰, 2 ︰ 1 mixing in mass ratio, obtain gel coating, and the spray gun for being 1.3mm with bore controls nozzle distance
FTO electro-conductive glass vertical range is 17cm, is sprayed at FTO conductive glass surface with the pressure gel shape coating of 0.21MPa, is formed
The photoelectric conversion electrode film of 0.1mm, obtains dye-sensitized solar cells to electrode material.
It takes 15g paranitroanilinum to be placed in a beaker, the hydrochloric acid that 40mL mass fraction is 20% is added, is heated to 80 DEG C,
Insulated and stirred is until solids is completely dissolved, then is placed the beaker and be rapidly cooled to 5 DEG C under condition of ice bath, with turning for 400r/min
Speed stirs and is added the sodium nitrite in aqueous solution that 50mL mass fraction is 5%, reacts 35min, then 5g amino sulphur is added into beaker
After acid, filter, isolated filtrate, as single sweep polarographic wave solution；12g multiple-wall carbon nanotube is taken to be placed in three-necked flask
In, 300mL deionized water is added, three-necked flask is placed in ultrasonic disperse instrument, with the frequency of 30kHz under the conditions of temperature is 55 DEG C
50mL single sweep polarographic wave is added dropwise into three-necked flask with the rate of 4mL/min with dropping funel by rate ultrasonic disperse 35min
Solution and 5g tungsten carbide reacts when being added dropwise, and after be added dropwise, reaction solution in three-necked flask is filtered, with deionized water,
Dehydrated alcohol successively cleans filter residue 4 times, until filtrate, in colourless, collection obtains filtrate；Above-mentioned filtrate is placed in rotary evaporation
In instrument, 15min is rotated with the revolving speed of 90r/min under the conditions of 85 DEG C, obtains organic dispersion carbon nanotubes, added into four-hole boiling flask
Enter 15g polyethylene glycol 10000 and 120mL toluene, be heated to 80 DEG C, stirring to solid is dissolved, then is cooled to 50 DEG C, and 1.0g is added
Toluene-2,4-diisocyanate, 4- diisocyanate and 0.5mL dibutyl tin dilaurate react 5h, then are warming up to 75 DEG C, react 12h, are added
The organic dispersion carbon nanotubes of 40g, is mixed to get dispersion gel shape coating；By 45mL atoleine, 12mL emulsifier op-10,
The hydrochloric acid that 220mL mass fraction is 5% is placed in three-necked flask, starts blender, is stirred with the revolving speed of 300r/min, is used constant pressure
It is molten that the non-hydrate sodium metasilicate that 200mL mass fraction is 40% is added dropwise with the drop rate of 3mL/min into three-necked flask for dropping funel
Liquid, is stirred to react 3h, cooled to room temperature, and discharging is obtained to electrode slurry；Above-mentioned dispersion gel shape coating is put into revolving speed
For centrifugal treating 30min in the high speed freezing centrifuge of 7000r/min, 4h is stood, sediment is collected, by sediment, electrode slurry
Material, titanium dioxide are 6 ︰, 2 ︰ 1 mixing in mass ratio, obtain gel coating, and the spray gun for being 1.5mm with bore controls nozzle distance
FTO electro-conductive glass vertical range is 20cm, is sprayed at FTO conductive glass surface with the pressure gel shape coating of 0.3MPa, is formed
The photoelectric conversion electrode film of 0.2mm, obtains dye-sensitized solar cells to electrode material.
Comparative example incite somebody to action this as a comparison case to electrode material with the dye-sensitized solar cells that Xi'an company produces
Dye-sensitized solar cells obtained is invented to the dye-sensitized solar cells in electrode material and comparative example to electrode material
Material carries out battery performance test, and test sunlight intensity is 50mW/cm2, testing result is as shown in table 1：
1 performance measurement result of table
According to data in table 1 it is found that dye-sensitized solar cells produced by the present invention has three-dimensional porous electrode material
Structure and great specific surface area, are conducive to the infiltration of electrolyte and the transmission of electronics, and photoelectric conversion efficiency is higher.The present invention
Preparation method is simple and effective, and preparation cost is low, and preparation condition is mildly controllable, is conducive to be mass produced, and has wide use
Prospect.
Claims (6)
1. a kind of dye-sensitized solar cells is to the preparation method of electrode material, it is characterised in that specifically preparation step is：
（1）It takes 12~15g paranitroanilinum to be placed in a beaker, the hydrochloric acid that 35~40mL mass fraction is 20% is added, heating rises
Temperature, insulated and stirred is until solids is completely dissolved, then is placed the beaker and cooled down rapidly under condition of ice bath, with 300~400r/min
Revolving speed stir and be added 40~50mL sodium nitrite in aqueous solution, react, then into beaker be added 4~5g sulfamic acid after, take out
Filter, isolated filtrate, as single sweep polarographic wave solution；
（2）It takes 10~12g multiple-wall carbon nanotube to be placed in three-necked flask, 200~300mL deionized water is added, by three-necked flask
It is placed in ultrasonic disperse instrument, 30~35min of ultrasonic disperse, 40~50mL p-nitrophenyl is added dropwise into three-necked flask with dropping funel
Amine diazonium salt solution and 4~5g tungsten carbide are reacted when being added dropwise, until filter reaction solution in three-necked flask after being added dropwise,
Successively filter residue is cleaned 3~4 times with deionized water, dehydrated alcohol, until filtrate, in colourless, collection obtains filtrate；
（3）Above-mentioned filtrate is placed in Rotary Evaporators, 10~15min is rotated with the revolving speed of 80~90r/min, obtains organic point
Carbon nanotubes is dissipated, 10~15g polyethylene glycol 10000 and 100~120mL toluene are added into four-hole boiling flask, heating, stirring is to admittedly
Body dissolution, then cool down, 0.8~1.0g Toluene-2,4-diisocyanate, 4- diisocyanate and 0.4~0.5mL dibutyl tin dilaurate is added, instead
It answers, then heats up, react, the organic dispersion carbon nanotubes of 30~40g is added, is mixed to get dispersion gel shape coating；
（4）40~45mL atoleine, 10~12mL emulsifier op-10,200~220mL hydrochloric acid are placed in three-necked flask, opened
Dynamic blender, is stirred with the revolving speed of 250~300r/min, it is inclined that nine water of 200mL is added dropwise into three-necked flask with constant pressure funnel
Sodium silicate solution is stirred to react, cooled to room temperature, and discharging is obtained to electrode slurry；
（5）Above-mentioned dispersion gel shape coating is put into high speed freezing centrifuge centrifugal treating, is stood, sediment is collected, will precipitate
Object, electrode slurry, titanium dioxide mixing, obtain gel coating, and with spray gun, gel coating is sprayed at FTO conductive glass surface,
Photoelectric conversion electrode film is formed, obtains dye-sensitized solar cells to electrode material.
2. a kind of dye-sensitized solar cells according to claim 1 exists to the preparation method of electrode material, feature
In：Step（1）The mass fraction of the hydrochloric acid is 20%, and temperature is 70~80 DEG C after heat temperature raising, and beaker is placed in condition of ice bath
Temperature is 0~5 DEG C after lower cooling rapidly, and the mass fraction of sodium nitrite in aqueous solution is 5%, and the reaction time is 30~35min.
3. a kind of dye-sensitized solar cells according to claim 1 exists to the preparation method of electrode material, feature
In：Step（2）Temperature is 50~55 DEG C when the described ultrasonic disperse, and supersonic frequency is 25~30kHz, dropping funel drop rate
For 3~4mL/min.
4. a kind of dye-sensitized solar cells according to claim 1 exists to the preparation method of electrode material, feature
In：Step（3）Temperature is 80~85 DEG C when the described rotary evaporation, and four-hole boiling flask temperature after heating is 70~80 DEG C, then is cooled down
Temperature is 40~50 DEG C afterwards, and the reaction time is 4~5h, then temperature is 70~75 DEG C after heating up, and the reaction time is 10~12h.
5. a kind of dye-sensitized solar cells according to claim 1 exists to the preparation method of electrode material, feature
In：Step（4）The mass fraction of the hydrochloric acid is 5%, and the drop rate of constant pressure funnel is 2~3mL/min, and nine water are inclined
The mass fraction of sodium silicate solution is 40%, and being stirred to react the time is 2~3h.
6. a kind of dye-sensitized solar cells according to claim 1 exists to the preparation method of electrode material, feature
In：Step（5）The high speed freezing centrifuge revolving speed is 5000~7000r/min, and the centrifugal treating time is 10~30min,
Time of repose is 3~4h, and sediment, electrode slurry, titanium dioxide mixing mass ratio are 6 ︰, 2 ︰ 1, and spray gun bore is 1.0~1.5mm,
Control nozzle distance FTO electro-conductive glass vertical range is 15~20cm, and spray pressure is 0.15~0.30MPa, photoelectric conversion electricity
Pole film thickness is 0.1~0.2mm.
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| WO2021003763A1 (en) * | 2019-07-09 | 2021-01-14 | 山东光韵智能科技有限公司 | High-energy light absorption conversion material for radiation proof in high-risk area and manufacturing method therefor |
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| US20080236666A1 (en) * | 2006-07-27 | 2008-10-02 | Commissariat A L'energie Atomique | Polymerizable diazonium salts, process for the preparation thereof and uses thereof |
| CN102496474A (en) * | 2011-11-12 | 2012-06-13 | 太原理工大学 | Preparation method for counter electrode of dye-sensitized solar cell |
| CN106252080A (en) * | 2016-07-29 | 2016-12-21 | 太原理工大学 | A kind of carbon nanomaterial is prepared as the DSSC method to electrode |
| CN107987532A (en) * | 2017-12-04 | 2018-05-04 | 华中科技大学鄂州工业技术研究院 | A kind of method for making composite material |
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| US20080236666A1 (en) * | 2006-07-27 | 2008-10-02 | Commissariat A L'energie Atomique | Polymerizable diazonium salts, process for the preparation thereof and uses thereof |
| CN102496474A (en) * | 2011-11-12 | 2012-06-13 | 太原理工大学 | Preparation method for counter electrode of dye-sensitized solar cell |
| CN106252080A (en) * | 2016-07-29 | 2016-12-21 | 太原理工大学 | A kind of carbon nanomaterial is prepared as the DSSC method to electrode |
| CN107987532A (en) * | 2017-12-04 | 2018-05-04 | 华中科技大学鄂州工业技术研究院 | A kind of method for making composite material |
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