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Preparation method for porous crystalline TiO2 photo-anode

A photoanode and crystalline technology, applied in photosensitive equipment, photovoltaic power generation, electrolytic capacitors, etc., can solve the problems of complex preparation process and harsh experimental conditions, etc., achieve simple preparation process, improve charge collection efficiency, and improve diffusion speed Effect

Inactive Publication Date: 2014-02-26
HEILONGJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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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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  • Preparation method for porous crystalline TiO2 photo-anode
  • Preparation method for porous crystalline TiO2 photo-anode
  • Preparation method for porous crystalline TiO2 photo-anode

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

Disclosed in the invention is a preparation method for a porous crystalline TiO2 photo-anode. The preparation method comprises the following steps: step one, weighing a commercial TiO2 nano particle powder material, a camphene solvent, a Texaphor 3250 dispersing agent and a polystyrene bonder and stirring and mixing the weighed reagents; step two, carrying out ball milling on the mixture reagent obtained in the step one so as to obtain a slurry; step three, the arranging the slurry obtained in the step two on a piece of conductive glass of a single-layer crystalline TiO2 nano particle film by blade coating; and step four, placing the photo-anode prepared in the step three into a muffle furnace for roasting so as to obtain the porous crystalline TiO2 photo-anode. According to the invention, the cost is low; the preparation process is simple; and the porous crystalline TiO2 photo-anodes can be produced in large scale. And when the mass ratio of the powder material to the solvent to the dispersing agent to the bonder is 60:40:3:3, the photoelectric conversion efficiency of the porous crystalline TiO2 photo-anode can be maximized, so that the efficiency of the porous crystalline TiO2 photo-anode exceeds that of the photo-anode formed by the traditional crystalline TiO2 nano particle particles.

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 Applications(China)
IPC IPC(8): H01G9/20H01G9/052H01G9/042
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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