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

ZrO2@SiO2 catalyst with core-shell structure, preparation method and application thereof

A technology of core-shell structure and catalyst, which is applied in the field of core-shell structure ZrO2@SiO2 catalyst and its preparation, and can solve problems such as ignoring catalyst configuration design

Inactive Publication Date: 2020-06-09
DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
View PDF9 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing technical means mainly rely on the preparation method and the adjustment of the type of additives to improve the performance of the catalyst, ignoring the design of the catalyst configuration.

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
  • ZrO2@SiO2 catalyst with core-shell structure, preparation method and application thereof
  • ZrO2@SiO2 catalyst with core-shell structure, preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0091] The preparation of embodiment 1 catalyst

[0092] Weigh 0.2576g of zirconium oxychloride and dissolve it in deionized water, add 8ml of 10mol / L sodium hydroxide solution, and stir evenly. The volume was adjusted to 60 ml with deionized water, and then the solution was transferred to a Teflon-lined autoclave and kept in an oven at 150 °C for 10 h. Naturally cooled to room temperature, the product was collected by centrifugation, washed thoroughly with absolute ethanol and deionized water, and then dispersed into 100ml of absolute ethanol, followed by adding 20ml of deionized water and 6.0g of ammonia water, stirring evenly and adding 6.24g of silicon Acid tetraethyl ester, kept stirring at room temperature for 18 hours, centrifuged to separate the solid product, washed thoroughly with absolute ethanol and deionized water, dried at 70°C, and roasted at 600°C for 3 hours in an air atmosphere to obtain a non-porous shell Silica ZrO 2 @SiO 2 Catalyst, denoted as sample 1 ...

Embodiment 2

[0093] The preparation of embodiment 2 catalyst

[0094]Weigh 0.3432g of zirconium nitrate and dissolve it in deionized water, add 8ml of 10mol / L sodium hydroxide solution, and stir evenly. The volume was adjusted to 60 ml with deionized water, and then the solution was transferred to a Teflon-lined autoclave and kept in an oven at 150 °C for 10 h. Naturally cooled to room temperature, the product was collected by centrifugation, washed thoroughly with absolute ethanol and deionized water, and then dispersed into 100ml of absolute ethanol, followed by adding 20ml of deionized water and 6.0g of ammonia water, stirring evenly and adding 6.24g of silicon Acid tetraethyl ester, kept stirring at room temperature for 18 hours, centrifuged to separate the solid product, washed thoroughly with absolute ethanol and deionized water, dried at 70°C, and roasted at 600°C for 3 hours in an air atmosphere to obtain a non-porous shell Silica ZrO 2 @SiO 2 Catalyst, denoted as sample 2 # . ...

Embodiment 3

[0095] The preparation of embodiment 3 catalyst

[0096] Weigh 0.1864g of zirconyl nitrate and dissolve it in deionized water, add 8ml of 10mol / L sodium hydroxide solution, and stir evenly. The volume was adjusted to 60 ml with deionized water, and then the solution was transferred to a Teflon-lined autoclave and kept in an oven at 150 °C for 10 h. Naturally cooled to room temperature, the product was collected by centrifugation, washed thoroughly with absolute ethanol and deionized water, and then dispersed into 100ml of absolute ethanol, followed by adding 20ml of deionized water and 6.0g of ammonia water, stirring evenly and adding 6.24g of silicon Acid tetraethyl ester, kept stirring at room temperature for 18 hours, centrifuged to separate the solid product, washed thoroughly with absolute ethanol and deionized water, dried at 70°C, and roasted at 600°C for 3 hours in an air atmosphere to obtain a non-porous shell Silica ZrO 2 @SiO 2 Catalyst, denoted as sample 3 # . ...

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
Login to View More

Abstract

The invention discloses a ZrO2@SiO2 catalyst with a core-shell structure, a preparation method and application thereof, and belongs to the field of catalytic material synthesis, wherein the ZrO2@SiO2catalyst with the core-shell structure comprises an inner core and an outer shell, the inner core is ZrO2, and the outer shell is SiO2. The preparation method of the ZrO2@SiO2 catalyst with the core-shell structure at least comprises the following steps: a) preparing ZrO2; and b) adding a silicon source into the ZrO2-containing solution to obtain a mixed solution, and preparing the ZrO2@SiO2 catalyst with the core-shell structure by a sol-gel method. The ZrO2@SiO2 catalyst with the core-shell structure can be used for efficiently catalyzing a reaction of ethanol and acetaldehyde to synthesize1,3-butadiene. The preparation method of the catalyst is simple in preparation process, easy to operate and simple in required equipment, and has a good industrial application prospect.

Description

technical field [0001] The application relates to a core-shell structure ZrO 2 @SiO 2 The catalyst and its preparation method and application belong to the field of catalytic material synthesis. Background technique [0002] 1,3-Butadiene (BD) is an important chemical product in the petrochemical industry. As one of the most important basic organic chemical materials, it is widely used in the fields of producing synthetic rubber and resin as well as many petrochemical products. [0003] Currently, most butadiene production is obtained through naphtha cracking processes. This route is limited by petroleum resources, so it is crucial to develop alternative technologies for butadiene production from non-petroleum resources. Bioethanol is one of the most abundant sustainable raw materials available today. The preparation of various industrial products from ethanol has been extensively studied. Therefore, the process technology using ethanol to butadiene has received extens...

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): B01J21/08B01J35/08B01J35/10B01J37/10B01J37/03C07C11/167C07C1/20
CPCB01J21/08B01J37/10B01J37/036C07C1/20C07C2521/08B01J35/396B01J35/23B01J35/51B01J35/647C07C11/167
Inventor 黄声骏虞永华金长子张大治
Owner DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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