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A kind of preparation method of porous crystalline tio2 photoanode

A technology of photoanode and crystalline state, which is applied in the direction of photosensitive equipment, semiconductor/solid-state device manufacturing, photovoltaic power generation, etc., can solve the problems of complex preparation process and harsh experimental conditions, and achieve simple preparation process, improve charge collection efficiency, The effect of improving the diffusion speed

Inactive Publication Date: 2017-01-11
HEILONGJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the above two methods can be used to successfully synthesize TiO2 powder materials with a certain pore structure, the conditions required for the experiment are harsh and the preparation process is complicated.

Method used

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  • A kind of preparation method of porous crystalline tio2 photoanode
  • A kind of preparation method of porous crystalline tio2 photoanode
  • A kind of preparation method of porous crystalline tio2 photoanode

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Weigh commercial TiO2 nanoparticle powder material, camphene solvent, Texaphor3250 dispersant and polystyrene binder in a mass ratio of 40:40:3:3, then stir and mix the above-mentioned weighed reagents for 30min to obtain a mixed reagent ; 2. Ball mill the mixture reagent in step 1 at a temperature of 80° C. for 60 hours to obtain a slurry; 3. Stir the slurry in step 2 at 60° C. in an external water bath for 1-3 hours, and then scrape-coat it on a layer containing a single layer of crystalline TiO2 On the conductive glass of the nanoparticle film; 4. Put the photoanode prepared in step 3 into the muffle furnace, first raise the temperature to 100°C at a speed of 1°C / min and keep it for 30min, and then heat up to 100°C at a speed of 2°C / min. Keep at 450°C for 30 minutes to obtain a porous crystalline TiO2 photoanode, and the total thickness of the film is 10 μm.

[0024] Preparation of Pt counter electrode:

[0025] Use a micro-syringe to draw 20 μL of anhydrous isoprop...

Embodiment 2

[0029] The difference between this embodiment and embodiment one is that in step one, the commercial TiO2 nanoparticle powder material, camphene solvent, Texaphor3250 dispersant and polystyrene binder are weighed successively by mass ratio of 60:40:3:3, Others are the same as in Embodiment 1.

Embodiment 3

[0031] The difference between this embodiment and embodiment one is that in the step one, the commercial TiO2 nanoparticle powder material, camphene solvent, Texaphor3250 dispersant and polystyrene binder are weighed successively by mass ratio of 80:40:3:3, Others are the same as in Embodiment 1.

[0032] Comparative Experiment:

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Abstract

The invention discloses a method for preparing a porous crystalline TiO2 photoanode. The invention adopts firstly weighing commercial TiO2 nano particle powder material, camphene solvent, Texaphor3250 dispersant and polystyrene binder, and then weighing the above-mentioned The reagent is stirred and mixed to obtain a mixed reagent; then the mixture reagent in step 1 is ball-milled to obtain a slurry; then the slurry in step 2 is scraped and coated on the conductive glass containing a single-layer crystalline TiO2 nanoparticle film; then step 3 The prepared photoanode is baked in a muffle furnace to obtain a porous crystalline TiO2 photoanode. The invention has the advantages of low cost, simple preparation process and large-scale production of porous crystalline TiO2 photoanode. When the mass ratio of powder material, solvent, dispersant and binder is 60:40:3:3, the photoelectric conversion efficiency of porous crystalline TiO2 photoanode reaches the highest, surpassing the photoelectric conversion efficiency of traditional crystalline TiO2 nanoparticles. anode.

Description

technical field [0001] The invention relates to a method for preparing energy, in particular to a method for preparing a porous crystalline TiO2 photoanode. Background technique [0002] With the rapid development of economy and society, people's demand for energy is increasing, and the excessive exploitation of fossil energy such as coal, oil and natural gas has caused an energy crisis. At the same time, the problem of environmental pollution caused by the use of fossil fuels has become increasingly serious. The development of sustainable renewable energy plays a vital role in the sustainable development of human society and economy. Among many new energy sources, solar energy has the advantages of abundant reserves, environmental protection and pollution-free, and less geographical restrictions. A solar cell is a photoelectric conversion device that can convert solar energy into electrical energy. The development and utilization of solar energy mainly focuses on three as...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L51/48H01G9/20H01G9/052H01G9/042
CPCY02E10/549
Inventor 潘凯付宏刚苗小欢刑子鹏周卫史克英
Owner HEILONGJIANG UNIV
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