Method for preparing nanometer composite film consisting of titanium dioxide nanotube and nanocrystalline

A titanium dioxide and nanocomposite technology, applied in the fields of nanostructure manufacturing, nanotechnology, nanotechnology, etc., can solve the problems of low electron transport capacity of nanocrystals, difficult to further improve the specific surface area of ​​nanotubes, etc., and achieve controllable film structure and low cost. , the effect of simple preparation process

Active Publication Date: 2010-07-14
SHANGHAI INST OF TECHNICAL PHYSICS - CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to provide a simple and feasible method for preparing a novel high-efficiency nanostructure solar cell photoanode, which not only solve

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  • Method for preparing nanometer composite film consisting of titanium dioxide nanotube and nanocrystalline
  • Method for preparing nanometer composite film consisting of titanium dioxide nanotube and nanocrystalline
  • Method for preparing nanometer composite film consisting of titanium dioxide nanotube and nanocrystalline

Examples

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Example Embodiment

[0013] Example 1:

[0014] Place the titanium sheet in NH with a mass concentration of 0.4% 4 F ethylene glycol solution, applied voltage 80V, react for 9h, take out the sample and rinse with absolute ethanol, N 2 Blow dry to get TiO perpendicular to the titanium substrate 2 Nanotube film. At room temperature, dissolve 1.58 g of polyoxyethylene-polyoxypropylene-polyoxyethylene triblock polymer in 15ml of absolute ethanol. After dissolving completely, add 0.2ml of acetylacetone and 7ml of n-butyl titanate with stirring. Then add 1ml of concentrated hydrochloric acid and 0.2ml of deionized water; stir at room temperature for 0.5 hours to obtain a titanium dioxide precursor sol. The TiO prepared by anodizing method is soaked 2 The nanotube film is immersed in the titania precursor sol, and the surface is washed with absolute ethanol after the gel is formed. Incubate at 500°C for 2.5 hours and cool to room temperature naturally. In this way, a nanocomposite film composed of titaniu...

Example Embodiment

[0015] Example 2:

[0016] Place the titanium metal piece in an HF aqueous solution with a mass concentration of 0.2%, apply a voltage of 20V, and react for 0.25h. The sample is taken out and rinsed with absolute ethanol. 2 Blow dry to obtain TiO whose height is perpendicular to the titanium substrate and the thickness is about 0.35 microns 2 Nanotube film. At room temperature, dissolve 3 grams of polystyrene-polyoxyethylene block polymer in 25ml of absolute ethanol, add 1.0ml of acetylacetone and 15ml of isopropyl titanate dropwise after complete dissolution, and then add 3ml of Concentrated hydrochloric acid and 1ml deionized water; stirred at room temperature for 6 hours to obtain a titanium precursor sol. The TiO prepared by anodizing method is soaked 2 The nanotube film is immersed in the titanium dioxide precursor sol, and the surface is washed with absolute ethanol after the gel is formed. Keep it at a temperature of 550°C for 1 hour, and cool to room temperature naturall...

Example Embodiment

[0017] Example 3:

[0018] Place the titanium sheet in NH with a mass concentration of 0.8% 4 F ethylene glycol solution, apply voltage 60V, react for 18h, take out the sample and rinse with absolute ethanol, N 2 Blow dry to obtain TiO with a height perpendicular to the titanium substrate 2 Nanotube film. At room temperature, dissolve 1 gram of polyoxyethylene-polyoxypropylene-polyoxyethylene triblock polymer in 10ml of absolute ethanol. After completely dissolved, add 0.2ml of acetylacetone and 5ml of ethyl titanate dropwise. Then add 1ml of concentrated hydrochloric acid and 0.2ml of deionized water; stir at room temperature for 0.5 hours to obtain a titanium precursor sol. The TiO prepared by anodizing method is soaked 2 The nanotube film is immersed in the titanium precursor, and the surface is rinsed with absolute ethanol after the gel is formed. Keep the temperature at 450°C for 3 hours and cool to room temperature naturally. In this way, a nanocomposite film composed of ...

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Abstract

The invention discloses a method for preparing a nanometer composite film consisting of a titanium dioxide nanotube and a nanocrystalline. The method has the following steps of: preparing a titanium dioxide nanotube vertically on a titanium substate by an anodizing method; filling a precursor sol which can form the nanocrystalline into the nanotube, and carrying out heat treatment to obtain the nanometer composite film consisting of the titanium dioxide nanotube and the nanocrystalline. The invention has the advantages of simple preparing process, low cost and controllable film structure. The composite film prepared by the method can be used as the photoanode of the solar battery, and is favorable for enhancing the photoabsorption and electronic transmission of the photoanode.

Description

technical field [0001] The invention relates to a solar cell material preparation technology, specifically a method for preparing a nanocomposite film composed of titanium dioxide nanotubes and nanocrystals. Background technique [0002] Global climate change, energy conservation and emission reduction are currently hot issues that the world is concerned about. With the continuous development of economy and society and the depletion of non-renewable energy such as coal, oil and natural gas, the energy problem has become a serious challenge to the survival and development of all human beings. As an important aspect of energy technology, the research on green new energy technologies such as solar cells has become a research hotspot in the scientific community. Solar cells have the advantages of simple structure, easy manufacture, and low cost. For solar cells, how to obtain photovoltaic devices with low cost and high photoelectric conversion efficiency from the principle to ...

Claims

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Application Information

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IPC IPC(8): B82B3/00H01G9/042H01G9/20H01M14/00H01L51/48
CPCY02E10/50Y02E10/549
Inventor 黄婵燕陈鑫陶俊超孙艳戴宁
Owner SHANGHAI INST OF TECHNICAL PHYSICS - CHINESE ACAD OF SCI
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