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

Tungsten monatomic modified bionic W18O49/TiO2 multilevel structure material and preparation method thereof

A technology of structural materials and atomic number, applied in the direction of tungsten oxide/tungsten hydroxide, titanium oxide/hydroxide, instruments, etc., can solve the problems of poor cycle, short life, high material resistance, etc., and achieve the improvement of electrochromic performance , easy to control, and simple preparation process

Active Publication Date: 2021-10-01
TSINGHUA UNIV
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are still weaknesses such as high material resistance, poor cycle performance, and short life.

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
  • Tungsten monatomic modified bionic W18O49/TiO2 multilevel structure material and preparation method thereof
  • Tungsten monatomic modified bionic W18O49/TiO2 multilevel structure material and preparation method thereof
  • Tungsten monatomic modified bionic W18O49/TiO2 multilevel structure material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] In this example, the polyvinylpyrrolidone was purchased from Beijing Blue Chemical Products Co., Ltd., CAS number: 9003-39-8, article number: S30269;

[0045] First, measure 15 ml of absolute ethanol in a polytetrafluoroethylene reactor, slowly add 18 mg of tungsten hexacarbonyl into the ethanol while stirring, and stir for 35 minutes to obtain a tungsten oxide precursor solution. Mix 2ml of tetrabutyl titanate, 2ml of acetic acid solution with 10ml of absolute ethanol, slowly add 0.3g of polyvinylpyrrolidone to the mixed solution while stirring, so that the final concentration of tetrabutyl titanate is 0.14g / ml, acetic acid The final concentration of polyvinylpyrrolidone is 0.14g / ml, the final concentration of ethanol is 0.56g / ml, and the final concentration of polyvinylpyrrolidone is 0.02g / ml to obtain precursor solution A; then stir for 5h to obtain spinning solution; spin spinning solution in Electrospinning was carried out under the conditions of a voltage of 6KV, ...

Embodiment 2

[0054] In this example, the polyvinyl alcohol was purchased from Jiangsu Aikang Biomedical Research and Development Co., Ltd., with a CAS number of 9002-89-5 and a product number of R010881;

[0055] First, measure 20ml of deionized water into a polytetrafluoroethylene reactor, slowly add 30mg of tungsten hexachloride into the deionized water while stirring, and stir for 30 minutes to obtain a tungsten oxide precursor solution. Mix 2ml of isopropyl titanate, 1.5ml of dilute sulfuric acid solution and 7ml of absolute ethanol, and slowly add 0.5g of polyvinyl alcohol into the mixed solution while stirring, so that the final concentration of isopropyl titanate is 0.18g / ml , the final concentration of sulfuric acid is 0.26g / ml, the final concentration of absolute ethanol is 0.52g / ml, and the final concentration of polyvinyl alcohol is 0.05g / ml to obtain precursor solution A; then stir for 6h to obtain spinning solution; The spinning solution was electrospun under the conditions of...

Embodiment 3

[0057] In this example, polyacrylonitrile was purchased from Jiangsu Aikang Biomedical Research and Development Co., Ltd., CAS number: 25014-41-9, product number: K100301; first, measure 30ml of absolute ethanol in a polytetrafluoroethylene reactor 20 mg of tungsten trichloride was slowly added to ethanol while stirring, and stirred for 50 min to obtain a tungsten oxide precursor solution. Mix 2.5ml of ethyl titanate, 2ml of dilute hydrochloric acid solution and 5ml of absolute ethanol, and slowly add 1g of polyacrylonitrile to the mixed solution while stirring, so that the final concentration of ethyl titanate is 0.28g / ml, and the hydrochloric acid The final concentration is 0.25g / ml, the final concentration of absolute ethanol is 0.41g / ml, and the final concentration of polyacrylonitrile is 0.1g / ml to obtain precursor solution A; then stir for 8h to obtain spinning solution; spin spinning solution Electrospinning was carried out under the conditions of a voltage of 10KV, a f...

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
Diameteraaaaaaaaaa
Lengthaaaaaaaaaa
Diameteraaaaaaaaaa
Login to View More

Abstract

The invention discloses a tungsten monatomic modified bionic W18O49 / TiO2 multilevel structure material and a preparation method thereof. For the multilevel structure material, tungsten oxide is loaded on the surface of titanium dioxide nanofiber, and a heterojunction is formed by the tungsten oxide and the titanium dioxide nanofiber; a tungsten monatomic layer exists at the heterojunction structure of the tungsten oxide and the titanium oxide; the percentage of the atomic number of W is 1%-10%, and the percentage of the atomic number of Ti is 20%-80%. The main raw materials of a composite electrochromic material are low in price, and the preparation process is simple and easy to control. The composite electrochromic material is excellent in cycling stability, obvious in color contrast and high in cost performance.

Description

technical field [0001] This paper relates to but not limited to the technical fields of chemical engineering, new materials and environmental protection, especially to but not limited to biomimetic W with tungsten single-atom modification with excellent electrochromic performance 18 o 49 / TiO 2 A method for preparing a multi-level structure electrochromic material. Background technique [0002] Studies have shown that about 30% to 40% of global primary energy consumption is used for lighting, heating, ventilation and air conditioning of buildings. Building energy efficiency is an important part of sustainable urban development. Windows are considered to be one of the least energy efficient building components through which a large amount of light and heat is lost. In order to achieve building energy conservation, it is of great significance to develop energy-saving technologies for glass doors and windows. [0003] With the continuous advancement of science and technolog...

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
IPC IPC(8): C01G41/02C01G23/053G02F1/1524
CPCC01G41/02C01G23/053G02F1/1524C01P2002/72C01P2004/03C01P2004/01C01P2006/40C01P2006/60
Inventor 张如范黄娅王宝顺贾希来
Owner TSINGHUA UNIV
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