Unlock instant, AI-driven research and patent intelligence for your innovation.

Flower-like mesoporous titanium dioxide hierarchical structure and preparation method thereof

A technology of mesoporous titanium dioxide and hierarchical structure, applied in the directions of titanium dioxide, chemical instruments and methods, titanium oxide/hydroxide, etc., can solve the problems such as thick is not conducive to lithium storage, excessive thickness of nanoparticles, and achieves easy implementation of process operation. Effect

Active Publication Date: 2017-06-13
QILU UNIV OF TECH
View PDF6 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The thickness of titanium dioxide nanosheets prepared in this patent is 10-100nm, and the average diameter of flower-shaped particles is 1000-2500nm. Too large and thick nanoparticles are not conducive to lithium storage

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
  • Flower-like mesoporous titanium dioxide hierarchical structure and preparation method thereof
  • Flower-like mesoporous titanium dioxide hierarchical structure and preparation method thereof
  • Flower-like mesoporous titanium dioxide hierarchical structure and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0047] In order to overcome the deficiencies in the prior art, the present invention provides a method for preparing a novel flower-like mesoporous titanium dioxide hierarchical structure, comprising the following steps:

[0048] (1) Cetyl trimethyl ammonium bromide (CTAB) is fully dissolved in water, then add didodecyl dimethyl ammonium bromide (DDAB), continue stirring to form a transparent solution, then add a small amount of ammonia water and stir well;

[0049] Wherein, the stirring temperature is 25-40° C., and the stirring speed is 300-450 r / min.

[0050] The molar ratio of CTAB and DDAB is 1:(0.978-1.126).

[0051] The addition ratio of the CTAB, ammonia water and water is 1 g: (4-6) mL: (240-260) mL.

[0052] The mass concentration of ammonia water is 23%-25%.

[0053] (2) Tetraethyl orthosilicate (TEOS) and titanium oxysulfate (TiOSO 4 ) is dispersed in absolute ethanol solution;

[0054] Among them, TEOS and TiOSO 4 The molar ratio is 1:(0.35~0.65).

[0055] ...

Embodiment 1

[0068] Add 0.141g CTAB into a 100mL beaker and place it on a magnetic stirrer, add 35mL deionized water and raise the temperature to 35°C, adjust the rotation speed to 350r / min to dissolve completely, then add 1.174g DDAB to form a transparent solution, then add 0.7 mL ammonia, then stirred for 2h; 2g TEOS and 0.768g TiOSO 4 Disperse in 15mL ethanol solution and slowly add the mixture dropwise to the above solution with stirring, and stir for 24h. The obtained white suspension was transferred to a 100mL reaction kettle, and placed in a thermostat at 100°C for 24h. After cooling, the white precipitate was filtered, and the obtained precipitate was repeatedly filtered and washed with distilled water. The obtained precipitate was dried at 55° C. for 10 h, and then the precipitate was calcined in a tubular calciner at 500° C. for 4 h to obtain a silica / titania composite material. Add 80mg of silica / titanium dioxide composite material into 40mL of 0.5M NaOH solution and react for...

Embodiment 2

[0070] Add 0.141g CTAB into a 100mL beaker and place it on a magnetic stirrer, add 35mL deionized water and raise the temperature to 35°C, adjust the rotation speed to 350r / min to dissolve completely, then add 1.174g DDAB to form a transparent solution, then add 0.7 mL ammonia, then stirred for 2h; 2g TEOS and 0.768g TiOSO 4 Disperse in 15mL ethanol solution and slowly add the mixture dropwise to the above solution with stirring, and stir for 24h. The obtained white suspension was transferred to a 100mL reaction kettle, and placed in a thermostat at 130°C for 24h. After cooling, the white precipitate was filtered, and the obtained precipitate was repeatedly filtered and washed with distilled water. The obtained precipitate was dried at 55° C. for 10 h, and then the precipitate was calcined in a tubular calciner at 500° C. for 4 h to obtain a silica / titania composite material. Add 80 mg of silica / titania composite material into 40 mL of NaOH solution with a concentration of 0...

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
particle diameteraaaaaaaaaa
thicknessaaaaaaaaaa
diameteraaaaaaaaaa
Login to View More

Abstract

The invention discloses a flower-like mesoporous titanium dioxide hierarchical structure and a preparation method thereof. The preparation method comprises the following steps: (1) sufficiently dissolving CTAB (cetyltrimethylammonium bromide) and DDAB (didecyldimethylammonium bromide) in water, uniformly mixing to form a transparent solution, then adding ammonia water, and uniformly mixing; (2) dispersing TEOS (tetraethyl orthosilicate) and TiOSO4 in an anhydrous ethanol solution; (3) adding the mixed solution in the step (2) into the mixed solution in the step (1), uniformly mixing, performing stirring reaction to obtain a white suspension, and performing solvothermal treatment on the white suspension to obtain a white precipitate; (4) filtering the white precipitate in the step (3), washing, drying, grinding, and calcining to obtain white powder; and (5) mixing the white powder in the step (4) with a NaOH solution, and performing etching reaction to obtain the flower-like mesoporous titanium dioxide hierarchical structure material. The flower-like mesoporous titanium dioxide hierarchical structure prepared by the invention is uniformly dispersed; petal surface laminated structures are obvious and uniformly distributed; and the width of the laminated structure is 5-10 nm, and the interlamellar spacing is 1-2 nm.

Description

technical field [0001] The invention relates to a flower-like mesoporous titanium dioxide hierarchical structure and a preparation method thereof, belonging to the technical field of nanomaterial synthesis. Background technique [0002] With the development of science and technology and information industry, especially the wide application of various portable electronic devices, energy storage devices are developing towards the trend of high performance and miniaturization. Lithium-ion batteries have attracted extensive attention due to their many advantages, such as high energy density, high power density, long cycle life, and low toxicity. [0003] Mesoporous titanium dioxide material is an inorganic biomaterial with dual characteristics of mesoporous materials and nanomaterials, and it has very high chemical stability and biocompatibility. In recent years, new breakthroughs have been made in the preparation and application of titanium dioxide nanomaterials. The crystal ...

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): C01G23/053B82Y40/00H01M4/48B01J21/06B01J35/10
CPCH01M4/48C01G23/0532B01J21/063C01P2004/03C01P2004/04C01P2002/72C01P2004/30C01P2004/64C01P2004/62B01J35/50B01J35/61Y02E60/10
Inventor 周国伟郑玉洁刘作花李治凯
Owner QILU UNIV OF TECH
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com