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

Hydrothermal synthesis method of tin dioxide nano material

A nanomaterial, tin dioxide technology, applied in tin oxide, nanotechnology, nanotechnology and other directions, can solve the problems of uneven structure and performance, and achieve the effect of low cost, uniform morphology and high specific surface area

Inactive Publication Date: 2013-10-02
SHANGHAI UNIV
View PDF2 Cites 11 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, although great progress has been made in the preparation of materials, various morphologies of SnO 2 Nanomaterials, whose structures and properties are still uneven

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
  • Hydrothermal synthesis method of tin dioxide nano material
  • Hydrothermal synthesis method of tin dioxide nano material
  • Hydrothermal synthesis method of tin dioxide nano material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] 1. Weigh 5 mmol of stannous sulfate (SnSO 4 ), add it into 60 ml deionized water, mix well, and stir at room temperature for 30 min;

[0020] 2. Weigh 1 mmol tetrapropylammonium hydroxide (TPAOH) with an electronic balance and add it to 40 ml deionized water, mix well, and stir at room temperature for 30 min. Add this solution dropwise to the above solution, then put it in a water bath at 80 °C, and stir it magnetically for 4 h;

[0021] 3. Pour the above mixed solution into a 100 ml autoclave lined with polytetrafluoroethylene, and crystallize at 180 °C for 24 h;

[0022] 4. After the reaction is completed, the product is taken out from the reactor, and through conventional steps such as centrifugation, washing, drying, and roasting, the tin dioxide nanomaterial of the multi-level structure prepared by the present invention is obtained.

[0023] The prepared samples were characterized for their physical properties, and some of the results are shown in...

Embodiment 2

[0025] The implementation process is the same as in Example 1 except for the following differences.

[0026] 1. Weigh 2.5 mmol of stannous sulfate with an electronic balance, and add it into a mixed solution of water and ethanol with a total volume of 60 ml (wherein V H2O / V ethanol =1:1), stirring at room temperature for 30 min;

[0027] 2. Use an electronic balance to weigh 0.5 mmol tetrapropylammonium hydroxide (TPAOH) and add it to a mixed solution of water and ethanol with a total volume of 40 ml (wherein V H2O / V ethanol =1:1), stirred at room temperature for 30 min. Add this solution dropwise to the above solution, then put it in a water bath at 80 °C, and stir it magnetically for 4 h;

[0028] 3. Pour the above mixed solution into a 100 ml autoclave lined with polytetrafluoroethylene, and crystallize at 170 °C for 30 h.

[0029] Obtained result has obvious difference with embodiment 1, and the obtained SnO 2 It is a solid spherical structure, some agglomerated,...

Embodiment 3

[0031] The implementation process is the same as in Example 1 except for the following differences.

[0032] 1. Weigh 5 mmol of stannous chloride with an electronic balance, add it to 60 ml of deionized water, mix well, and stir at room temperature for 30 min.

[0033] 2. Weigh 1.5 mmol tetrapropylammonium hydroxide (TPAOH) with an electronic balance and add it to 40 ml deionized water, mix well, and stir at room temperature for 30 min. This solution was added dropwise to the above solution, and then it was placed in a water bath at 80 °C and stirred magnetically for 6 h.

[0034] The obtained result is quite different from Example 1, the difference is that the obtained SnO 2 It is a burr-like hollow spherical structure with uniform appearance and good monodispersity, and its particle size is about 180 nm.

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
particle diameteraaaaaaaaaa
particle diameteraaaaaaaaaa
Login to View More

Abstract

The invention relates to a hydrothermal synthesis method of a tin dioxide nano material, belonging to the technical field of inorganic chemistry and material synthesis. The hydrothermal synthesis method is characterized by comprising the following step of: with stannous sulfate (SnSO4) as a tin source and water as a solvent, preparing the tin dioxide nano material with flower-like characteristic and uniform morphology through a simple hydrothermal process under the auxiliary crystallization action of small molecular alkali tetrapropylammonium hydroxide (TPAOH), wherein the tin source of the raw materials can be stannous chloride (SnCl2), sodium stannate (Na2SnO3) or the like and the SnO2 nano material with uniform morphology can be obtained by using the tin source. The method has the advantages of simpleness in operation, controllable conditions, easiness in obtainment of the raw materials, no addition of organic solvents in the reaction process, large specific surface area of the prepared material, uniform morphology, good crystallinity and the like and has wider application prospects in the fields such as lithium batteries, gas sensors, photocatalysis, solar cells and the like.

Description

technical field [0001] The invention relates to a hydrothermal synthesis method of tin dioxide nanometer material, which belongs to the technical field of inorganic chemistry and material preparation. Background technique [0002] Nano-tin dioxide is a semiconductor oxide material with excellent performance, which has a wide bandgap (3.6 eV), low resistivity (10 -4 ~10 6 Ω??cm), high light transmittance, stable physical and chemical properties, low cost and other advantages. Therefore, it is widely used in the fields of gas sensor, lithium ion battery, photocatalysis and solar battery. [0003] In the early days, nano-tin dioxide was mainly used as a gas-sensing material to receive extensive research attention from scientific researchers, and it has achieved large-scale applications in industry. With the rapid development of nanotechnology, more and more preparation methods and process routes have been researched and developed, in order to effectively control the synthes...

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): C01G19/02B82Y30/00
Inventor 焦正张海娇魏凤君袁晓君刘刚应敏霞
Owner SHANGHAI UNIV
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