Process for the preparation of titanium dioxide with nanometric dimensions and controlled shape

一种纳米、尺寸的技术，应用在染料敏化太阳能电池领域，能够解决没有提供二氧化钛、不适于生产锐钛矿相纳米棒、不能类似地分离等问题，达到降低生产费用、易于实现工业化规模的效果

Inactive Publication Date: 2011-01-19
DAONIA SOLAR CELLS CO LTD
View PDF5 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0021] Water and polyols are used in patent application WO 2006061367, but this method is not suitable for producing anatase phase TiO 2 Nano stave
[0022] In the patent JP 2003267705 on the preparation of materials coated with metal oxides, especially zinc oxide, the immersion of the material to be coated in the reaction mixture involves the use of acetic acid, benzyl alcohol and n-butoxytitanium as reactants, but No information is given about the shape of the titanium dioxide obtained, which in no case could be similarly isolated; instead, it was prepared only in the form of a coating for another material

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Process for the preparation of titanium dioxide with nanometric dimensions and controlled shape
  • Process for the preparation of titanium dioxide with nanometric dimensions and controlled shape
  • Process for the preparation of titanium dioxide with nanometric dimensions and controlled shape

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0081] Benzyl alcohol (403 g; 3.88 moles), acetic acid (90 g; 1.51 moles) and titanium tetraisopropoxide (106.7 g; 0.375 moles) were mixed by mechanical stirring in a 1000 ml flask equipped with a bubble condenser at room temperature. The mixture was heated to a reflux temperature of around 110°C. After 5 hours, the solution became cloudy and tended to gradually thicken. The stirring speed was increased and the mixture was kept at reflux for about 24 hours. The suspension turned into a liquid, which showed an intense white color. The mixture was transferred to a flask and concentrated in vacuo (0.5 mmHg) at about 70°C until a sticky paste formed. The residue obtained was washed with ethanol followed by diisopropyl ether, then filtered and dried at low pressure to give TiO 2 (26.5 g), characterized by XRPD (Figure Ia) and TEM (Figure Ib).

Embodiment 2

[0083] Following the same procedure as Example 1, but using benzoic acid (184 g, 1.15 moles) instead of acetic acid, TiO 2 (26.5 g), characterized by XRPD (Figure 2a) and TEM (Figure 2b).

Embodiment 3

[0085] Using the same procedure as Example 1, but using oleic acid (76.26 g, 0.27 moles) instead of acetic acid, TiO 2 (26.5 g), characterized by XRPD (Figure 3a) and TEM (Figure 3b).

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
lengthaaaaaaaaaa
lengthaaaaaaaaaa
widthaaaaaaaaaa
Login to view more

Abstract

The present invention relates to an industrial applicable process for the preparation of materials with nanometric dimensions and controlled shape, based on titanium dioxide. The invention also relates to a process for the preparation of titanium dioxide nanorods with anatase phase composition, which are highly suitable for applications involving photovoltaic cells, particularly Dye Sensitized Solar Cells (DSSC), photoelectrolysis cells and tandem cells for the conversion of solar energy and the production of hydrogen.

Description

technical field [0001] The invention relates to an industrial preparation method of a titanium dioxide-based material with nanometer size and controllable shape. The present invention also relates to a method for the preparation of titanium dioxide nanorods with an anatase phase composition, which are very suitable for use in photovoltaic cells, in particular dye-sensitized solar cells (DSSCs), for the conversion of solar energy and the generation of hydrogen. , Photolytic cells and tandem cells. Background technique [0002] Titanium dioxide (TiO 2 ) is one of the most important metal oxides in industrial applications due to its use in many different fields from paper making to pharmaceuticals, cosmetics, photocatalysts, photovoltaic cells, photoelectric cells, sensors, inks, paints, coatings and plastics . In particular, specific types of TiO 2 It is especially suitable for applications involving photovoltaic cells for converting solar energy and generating hydrogen, e...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): C01G23/053B01J21/06B82B3/00H01L31/04
CPCY02E10/52C01G23/047C01P2004/64B82Y30/00C01G23/053C01P2004/54C25B1/003C01P2004/16C01P2002/72Y02E10/542C25B1/55
Inventor 朱塞佩·西卡尔利罗伯托·钦戈拉尼路易莎·德·马尔科朱塞佩·吉利琼瓦纳·梅尔卡内弗朗西斯·马丁那弗朗西斯·马泰乌奇乔兰达·斯帕达韦基亚
Owner DAONIA SOLAR CELLS CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap