Titanium dioxide nanorod-nanocrystalline-nanoflower material and preparation method thereof

A technology of titanium dioxide and nano-crystals, applied in the direction of titanium dioxide, titanium oxide/hydroxide, nanotechnology, etc., can solve the problems of inability to ensure uniform and tight bonding of materials, and difficulty in exerting electron transport performance, so as to improve electron transport performance and cost Low, easy-to-operate effect

Inactive Publication Date: 2013-09-18
TIANJIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in the process of mechanical mixing, the material cannot be guaranteed to be uniformly and closely combined, so it is difficult to take advantage of its electron transport performance.
There are no related reports about titanium dioxide nanorod-nanocrystal-nanoflower material and its preparation

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  • Titanium dioxide nanorod-nanocrystalline-nanoflower material and preparation method thereof
  • Titanium dioxide nanorod-nanocrystalline-nanoflower material and preparation method thereof
  • Titanium dioxide nanorod-nanocrystalline-nanoflower material and preparation method thereof

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Embodiment 1

[0019] Fluorine-doped tin oxide conductive glass of 10mm×10mm was ultrasonically cleaned in ethanol, acetone, and deionized water for 10 minutes, and dried naturally for later use; 3g of titanium dioxide P 25 powder and 1g of ethyl cellulose were added to 10mL of absolute ethanol to prepare Titanium dioxide ethanol solution and ethyl cellulose ethanol solution, after the two are mechanically mixed, add 6g terpineol and 5g n-butanol, 200r min -1 Stir at high speed for 2h. Then carry out a water bath reaction at a temperature of 80°C, evaporate the ethanol, put the prepared colloid into an agate mortar and grind for 10 minutes to obtain a titanium dioxide slurry; fix the treated conductive glass on a screen printing machine, and print Technology Print titanium dioxide slurry on fluorine-doped tin oxide conductive glass, the mesh number of which is 400 mesh, the screen area is 8mm×8mm, the coating thickness is 2μm, and dried under natural conditions for 30min; in a 50mL reaction ...

Embodiment 2

[0021] Fluorine-doped tin oxide conductive glass of 10mm×10mm was ultrasonically cleaned in ethanol, acetone, and deionized water for 10 minutes, and dried naturally for later use; 4g of titanium dioxide P 25 powder and 1g of ethyl cellulose were added to 10mL of absolute ethanol to prepare Titanium dioxide ethanol solution and ethyl cellulose ethanol solution, after the two are mechanically mixed, add 7.5g terpineol and 7g n-butanol, 200r min -1 Stir at high speed for 2h. Then carry out a water bath reaction at a temperature of 80°C, evaporate the ethanol, put the prepared colloid into an agate mortar and grind for 10 minutes to obtain a titanium dioxide slurry; fix the treated conductive glass on a screen printing machine, and print Technology Print titanium dioxide slurry on fluorine-doped tin oxide conductive glass, the mesh number of which is 400 mesh, the screen area is 8mm×8mm, the coating thickness is 2μm, and dried under natural conditions for 30min; in a 50mL reactio...

Embodiment 3

[0023] Fluorine-doped tin oxide conductive glass of 10mm×10mm was ultrasonically cleaned in ethanol, acetone, and deionized water for 10 minutes, and dried naturally for later use; 3g of titanium dioxide P 25 powder and 1g of ethyl cellulose were added to 10mL of absolute ethanol to prepare Titanium dioxide ethanol solution and ethyl cellulose ethanol solution, after the two are mechanically mixed, add 7.5g terpineol and 8g n-butanol, 250r min -1 Stir at high speed for 2h. Then carry out a water bath reaction at a temperature of 85°C, evaporate ethanol, put the prepared colloid into an agate mortar and grind for 10 minutes to obtain a titanium dioxide slurry; fix the treated conductive glass on a screen printing machine, and print Technology Print titanium dioxide slurry on fluorine-doped tin oxide conductive glass, the mesh number of which is 400 mesh, the screen area is 8mm×8mm, the coating thickness is 2μm, and dried under natural conditions for 30min; in a 50mL reaction ke...

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Abstract

The invention discloses a titanium dioxide nanorod-nanocrystalline-nanoflower material and a preparation method thereof. The structure of the material is as follows: the titanium dioxide nanorod is positioned at the bottom, the titanium dioxide nanocrystalline is positioned in the middle layer, and the titanium dioxide nanoflower is positioned on the top. The preparation process comprises the steps that titanium dioxide P25 powder and ethyecellulose are respectively prepared into ethanol solution, terpilenol and n-butyl alcohol are added to the ethanol solution, the ethyl alcohol is evaporated through water bath reaction, and titanium dioxide slurry is obtained after grinding; the titanium dioxide slurry is printed on conductive glass through the screen printing technique, and is dried under natural condition; deionized water, concentrated hydrochloric acid and butyl titanate are added to a reactor, and the conductive glass is obliquely put into reaction solution to be subjected to reaction, and the material is obtained. The titanium dioxide nanorod-nanocrystalline-nanoflower material and the preparation method thereof have the advantages that the material and the preparation method are simple and feasible, the energy consumption is low, the preparation cycle is short, the industrial batch production is easy, and the prepared material is beneficial to improving the efficiency of a dye-sensitized solar cell.

Description

technical field [0001] The invention relates to a titanium dioxide nanorod-nano microcrystal-nano flower material and a preparation method thereof, belonging to the titanium dioxide nano material technology. Background technique [0002] Nano-TiO2 has been widely used in the preparation of photoanodes for dye-sensitized solar cells due to its suitable energy band structure, excellent electrical conductivity and chemical stability. Traditional photoanodes are prepared by coating titanium dioxide nanoparticles with slurry. Although it has a large specific surface area and a large amount of dye adsorption, the transmission of photogenerated electrons is hindered due to the existence of the internal interface. [0003] In order to obtain high-performance electron transport capabilities, one-dimensional nanoarray films have been extensively studied for the preparation of photoanodes. These nanoarrays include arrays of nanowires, nanorods, and nanotubes. However, the dye adsor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L31/0224C01G23/047B82Y30/00B82Y40/00H01L31/18
CPCY02P70/50
Inventor 刘恩佐张淼赵乃勤何春年师春生李伟李家俊
Owner TIANJIN UNIV
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