Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Titanate having a nanometer structure and preparing method and application thereof

A nanostructure, titanate technology, applied in the field of materials, can solve the problems of environmental pollution, high concentration of corrosive alkali, high synthesis cost, etc., and achieve the effects of easy control of process parameters, simple preparation process and low production cost

Active Publication Date: 2018-12-18
PETROCHINA CO LTD
View PDF6 Cites 13 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The reaction system has very strict requirements on hydrothermal reaction equipment, it is difficult to find suitable reaction equipment, and the synthesis cost is expensive
In addition, the concentration of corrosive alkali used in this preparation method is very high, which makes it difficult to separate and purify the subsequent sodium titanate product, and also brings serious pollution to the environment.
Therefore, the hydrothermal preparation method of nanostructured titanate still faces many difficulties in terms of synthesis equipment, synthesis process and subsequent treatment, and cannot achieve large-scale production.
[0005] Therefore, it is still a major challenge to develop a preparation method that is simple in the process flow, does not require high temperature or high pressure synthesis conditions, and is convenient for large-scale production of nanostructured titanates.

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
  • Titanate having a nanometer structure and preparing method and application thereof
  • Titanate having a nanometer structure and preparing method and application thereof
  • Titanate having a nanometer structure and preparing method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0066] according to figure 1 According to the process, 4 grams of titanium isopropoxide is dispersed in 100 milliliters of water under stirring conditions, and then 8 milliliters of 30% hydrogen peroxide is added and stirred to form a titanium-containing peroxo complex suspension. Next, add 10 grams of sodium hydroxide to the above-mentioned peroxo complex suspension, and stir to form a light yellow transparent solution. Next, 30 ml of ethanol was slowly added to the above transparent solution at room temperature, and after stirring, a one-dimensional nanowire-shaped precursor precipitate was obtained, and the sodium titanate precursor precipitate was obtained by filtration separation. The SEM image is as follows figure 2 shown. Subsequently, the precursor was precipitated and dried, and then heated at 300 degrees Celsius for 24 hours to obtain a one-dimensional nanowire-shaped sodium titanate product. The SEM image is as follows image 3 shown. Figure 4 It is a graph of ...

Embodiment 2

[0068] according to figure 1 In the process described above, under stirring conditions, 3 g of titanium isopropoxide is dispersed in 100 ml of water, and then 6 g of urea peroxide is added, and stirred to form a titanium-containing peroxo complex suspension. Next, add 8 grams of sodium oxide to the above-mentioned peroxo complex suspension, and stir to form a light yellow transparent solution. Next, 10 ml of isopropanol was slowly added to the above transparent solution at room temperature, and the precursor precipitate was obtained after stirring. The sodium titanate precursor precipitate was obtained by suction filtration, and its SEM image was basically the same as figure 2 Consistent with that shown. Subsequently, the precursor was precipitated and dried, and then heated at 450 degrees Celsius for 4 hours to obtain a sodium titanate product, whose SEM image was basically the same as image 3 Consistent with that shown.

Embodiment 3

[0070] according to figure 1 According to the process, 1 g of tetrabutyl titanate was dispersed in 100 ml of water under stirring conditions, and then 2 ml of hydrogen peroxide with a concentration of 30% was added, and stirred to form a titanium-containing peroxo complex suspension. Next, add 2 grams of sodium peroxide and 3 grams of sodium chloride to the suspension of the above-mentioned peroxo complex, and stir to form a light yellow transparent solution. Next, 30 ml of methanol was slowly added to the above transparent solution at room temperature, and the precursor precipitate was obtained after stirring. The sodium titanate precursor precipitate was obtained by centrifugation, and its SEM image was basically the same as figure 2 Consistent with that shown. Subsequently, the precursor was precipitated and dried, and then heated at 900 degrees Celsius for 1 hour to obtain the sodium titanate product, whose SEM image was basically the same as image 3 Consistent with th...

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

No PUM Login to View More

Abstract

A titanate having a nanometer structure and a preparing method and application thereof are provided. The method include S1) preparing a dispersion containing a titanium peroxy complex; S2) slowly adding a metal compound into the dispersion to form a solution; S3) adding an alcohol into the solution at room temperature and under atmospheric pressure to promote generation of a titanate precursor precipitate having a nanometer structure, and performing separation to obtain the precursor; and S4) drying the precursor, and performing thermal treatment to obtain the titanate product having a nanometer structure. The titanate preparing method having a simple process and easily controllable process parameters and susceptible to large-scale industrial production is provided.

Description

technical field [0001] The invention relates to the field of materials, in particular, the invention relates to a nanostructured titanate and its preparation method and application. Background technique [0002] Titanate has been widely used in battery electrodes, piezoelectric and other fields, and is a hotspot in the field of materials research. The application performance of titanate materials is closely related to its particle size. For example, nanostructures can reduce the particle size of materials. When applied to battery electrodes, it can reduce the distance and path of ion intercalation and intercalation, and improve the rapid charge and discharge performance of batteries; nanostructures can also increase the specific surface area of ​​materials. It can absorb more conductive agent and increase the contact area with the electrolyte, reduce the current density, and further improve the rapid charge and discharge performance of the material. Therefore, the preparat...

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): C01G23/00H01M4/485H01M10/0525H01M10/054B82Y30/00B82Y40/00
CPCH01M4/485H01M10/0525H01M10/054B82Y30/00B82Y40/00C01G23/005C01G23/006C01P2004/03C01P2006/40C01P2004/16H01M4/366H01M4/62Y02E60/10C01G23/001C01G23/08C01P2004/64C09C3/063C09C3/10
Inventor 金旭李建明王晓琦焦航孙亮刘晓丹
Owner PETROCHINA CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com