A kind of preparation method of the photoelectrode of photoelectrochemical cell

A photoelectrochemical cell and photoelectrode technology, applied in electrodes, electrolytic coatings, electrolysis processes, etc., can solve the problems of limited specific surface area of ​​photoelectrodes, limited electrolyte contact area, low photolysis water efficiency, etc. Efficiency, beneficial to large-scale production, and the effect of huge application value

Active Publication Date: 2017-08-25
SUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, no matter what means are used, the specific surface area of ​​the photoelectrode is limited, the light trapping property is weak, and the contact area with the electrolyte is limited, so the efficiency of photolysis of water is low.

Method used

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  • A kind of preparation method of the photoelectrode of photoelectrochemical cell
  • A kind of preparation method of the photoelectrode of photoelectrochemical cell

Examples

Experimental program
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Effect test

Embodiment example 1

[0028] Implementation case 1: FTO (fluorine-doped tin oxide) conductive glass was ultrasonically cleaned in the order of acetone, alcohol and deionized water for 20 minutes; 1mL of tetrabutyl titanate and 0.269g of anhydrous citric acid were added to 30mL of deionized water. And 30mL hydrochloric acid (mass ratio 36-38%) mixed solvent, continue to stir until uniformly mixed; use a pipette to measure 10mL of the newly prepared solution and transfer to a volume of 20mL PTFE-lined stainless steel high pressure In the kettle, place the cleaned FTO conductive glass with the conductive surface facing down in the inner lining of the autoclave, then seal the autoclave and place it in an oven, raise the temperature to 150°C in 20 minutes, and keep it at this temperature for 6 hours. After the reaction is over, after the reaction is naturally cooled to room temperature, take out the sample from the autoclave and wash it with deionized water and alcohol, and then dry the cleaned sample in ...

Embodiment example 2

[0029] Implementation case 2: FTO (fluorine-doped tin oxide) conductive glass was ultrasonically cleaned in the order of acetone, alcohol and deionized water for 20 minutes; 1mL of tetrabutyl titanate and 0.269g of anhydrous citric acid were added to 30mL of deionized water And 30mL hydrochloric acid (mass ratio 36-38%) mixed solvent, continue to stir until uniformly mixed; use a pipette to measure 10mL of the newly prepared solution and transfer to a volume of 20mL PTFE-lined stainless steel high pressure In the kettle, place the cleaned FTO conductive glass with the conductive surface facing down in the inner lining of the autoclave, then seal the autoclave and place it in an oven, raise the temperature to 150°C in 20 minutes, and keep it at this temperature for 6 hours. After the reaction is over, after the reaction is naturally cooled to room temperature, take out the sample from the autoclave and wash it with deionized water and alcohol, and then dry the cleaned sample in t...

Embodiment example 3

[0030] Implementation case 3: FTO (fluorine-doped tin oxide) conductive glass was ultrasonically cleaned in the order of acetone, alcohol and deionized water for 20 minutes; 1mL of tetrabutyl titanate and 0.269g of anhydrous citric acid were added to 30mL of deionized water And 30mL hydrochloric acid (mass ratio 36-38%) mixed solvent, continue to stir until uniformly mixed; use a pipette to measure 10mL of the newly prepared solution and transfer to a volume of 20mL PTFE-lined stainless steel autoclave Place the cleaned FTO conductive glass with the conductive surface facing down in the inner lining of the autoclave, then seal the autoclave and place it in an oven, raise the temperature to 150°C in 20 minutes, and keep it at this temperature for 6 hours. After cooling to room temperature, take out the sample from the autoclave and clean it with deionized water and alcohol. Then dry the cleaned sample in the air at 60°C for 2 hours. In order to improve the crystallinity of titani...

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Abstract

The invention discloses a method for preparing a photoelectrode of a photoelectrochemical cell by supporting a co-catalyst on a semiconductor nanomaterial. A photo-anode with high property is prepared by supporting a nickel and cobalt hydroxide co-catalyst on a synthesized titanium oxide nanorod; according to a semiconductor photoanode prepared by the method, specific surface area of the electrode is effectively increased, the light trapping property of electrode materials is enhanced, and the full-contact area of the electrode materials and electrolyte is increased; meanwhile, compared with a traditional single semiconductor electrode, the photoelectrode disclosed by the invention has the characteristics that by introducing the co-catalyst, the reaction between holes and the electrolyte is effectively promoted, and the separation of electron hole pairs is improved, so that water photocatalytic efficiency is effectively improved; in addition, the method disclosed by the invention is relatively-simple in preparation process; raw materials are sufficient and are low in price, so that large-scale production is facilitated, and a huge potential application value is realized.

Description

Technical field [0001] The invention relates to a preparation method of a photoelectrochemical electrode, in particular to a method for preparing a photoelectrode of a photoelectrochemical battery by loading a nano material catalyst on another nano material composite. Background technique [0002] With the continuous development of society and the ever-increasing improvement of people's living standards, it has brought about massive consumption of energy and serious deterioration of the environment. Among them, the energy crisis is becoming more and more serious. In order to solve this problem, countries all over the world are vigorously developing new and available clean energy. Solar energy is by far the largest clean energy source. The sun emits 12,000 TW of energy to the surface of the earth every second, and the solar energy irradiated on the earth every year is 10,000 times the total energy consumed every year. Therefore, effective use of solar energy is the best way to so...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C25B1/04C25B11/04C25D11/26B82Y40/00
CPCB82Y40/00C25B1/04C25D11/26C25B11/051Y02E60/36Y02P20/133
Inventor 田维李亮曹风人
Owner SUZHOU UNIV
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