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

Cu/ZnO-ZrO2 solid solution catalyst and glow discharge plasma assisted preparation method and application thereof

A plasma and glow discharge technology, applied in the direction of catalyst activation/preparation, metal/metal oxide/metal hydroxide catalyst, physical/chemical process catalyst, etc., can solve the problem of easy sintering of active components, poor methanol selectivity, Low conversion rate of carbon dioxide and other problems, to achieve the effect of inhibiting sintering phenomenon, high catalytic activity and high activity dispersion

Inactive Publication Date: 2019-07-12
YANCHENG INST OF TECH
View PDF4 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of this invention is to provide a kind of Cu / ZnO-ZrO 2 A solid solution catalyst and its glow discharge plasma-assisted preparation method and application to solve the problems of the prior art that the active components of the catalyst are easy to sinter, the conversion rate of carbon dioxide is low, and the selectivity of methanol is poor

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
  • Cu/ZnO-ZrO2 solid solution catalyst and glow discharge plasma assisted preparation method and application thereof
  • Cu/ZnO-ZrO2 solid solution catalyst and glow discharge plasma assisted preparation method and application thereof
  • Cu/ZnO-ZrO2 solid solution catalyst and glow discharge plasma assisted preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] (1) Weigh Zn(NO 3 ) 2 ·6H 2 O 1.49g, Zr(NO 3 ) 4 ·5H 2 O 8.59g Cu(NO 3 ) 2 ·3H 2 O 0.32g was dissolved in deionized water to form a metal nitrate mixed solution, and 26.50g of anhydrous sodium carbonate was weighed to prepare Na with a concentration of 0.5mol / L 2 CO 3 solution;

[0051] (2) At a reaction temperature of 70°C, slowly drop the above solution in parallel in a three-necked flask, and at the same time perform magnetic stirring to control the pH value of the solution at the end point of the titration to be about 7.5. After the titration is completed, continue stirring for 1 hour and then stop stirring. Stand still at the reaction temperature for 3 hours, centrifugally filter the solution at a rotating speed of 12000r / min, add deionized water to wash 3 times, and obtain a solid precipitate;

[0052] (3) drying in a vacuum oven at 105° C. for 12 hours to obtain a copper-doped zinc-zirconium solid solution catalyst precursor;

[0053] (4) Grind the obt...

Embodiment 2

[0056] (1) Weigh Zn(NO 3 ) 2 ·6H 2 O 1.49g, Zr(NO 3 ) 4 ·5H 2 O 8.59g Cu(NO 3 ) 2 ·3H 2 O 0.32g was dissolved in deionized water to form a metal nitrate mixed solution, and 26.50g of anhydrous sodium carbonate was weighed to prepare Na with a concentration of 0.5mol / L 2 CO 3 solution;

[0057] (2) At a reaction temperature of 70°C, slowly drop the above solution in parallel in a three-necked flask, and at the same time perform magnetic stirring to control the pH value of the solution at the end point of the titration to be about 7.5. After the titration is completed, continue stirring for 1 hour and then stop stirring. Stand still at the reaction temperature for 3 hours, centrifugally filter the solution at a rotating speed of 12000r / min, add deionized water to wash 3 times, and obtain a solid precipitate;

[0058] (3) drying in a vacuum oven at 105° C. for 12 hours to obtain a copper-doped zinc-zirconium solid solution catalyst precursor;

[0059] (4) Grind the obt...

Embodiment 3

[0062] (1) Weigh Zn(NO 3 ) 2 ·6H 2 O 1.49g, Zr(NO 3 ) 4 ·5H 2 O 8.59g Cu(NO 3 ) 2 ·3H 2 O 0.32g was dissolved in deionized water to form a metal nitrate mixed solution, and 26.50g of anhydrous sodium carbonate was weighed to prepare Na with a concentration of 0.5mol / L 2 CO 3 solution;

[0063] (2) At a reaction temperature of 70°C, slowly drop the above solution in parallel in a three-necked flask, and at the same time perform magnetic stirring to control the pH value of the solution at the end point of the titration to be about 7.5. After the titration is completed, continue stirring for 1 hour and then stop stirring. Stand still at the reaction temperature for 3 hours, centrifugally filter the solution at a rotating speed of 12000r / min, add deionized water to wash 3 times, and obtain a solid precipitate;

[0064] (3) drying in a vacuum oven at 105° C. for 12 hours to obtain a copper-doped zinc-zirconium solid solution catalyst precursor;

[0065] (4) Grind the obt...

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

The invention discloses a Cu / ZnO-ZrO2 solid solution catalyst and a glow discharge plasma assisted preparation method and application thereof. The preparation method of the catalyst comprises the following steps: dissolving Cu(NO3)2.3H2O, Zn(NO3)2.6H2O and Zr(NO3)4.5H2O in proportion in deionized water to prepare a metallic nitrate mixed solution; dropwise adding the metallic nitrate mixed solution and a Na2CO3 solution into a reaction vessel at the reaction temperature of 70 DEG C, maintaining the above reaction temperature after dropwise addition, stirring, standing and ageing; cooling the product and centrifuging to obtain a solid precipitate, and carrying out drying treatment to obtain a catalyst precursor; placing the catalyst precursor into glow discharge plasma equipment for treatment and then roasting to obtain a catalyst matrix. According to the invention, dispersity of copper in the catalyst is improved, and conversion rate and methanol yield of catalytic carbon dioxide hydrogenation to methanol are increased.

Description

technical field [0001] The invention belongs to the technical field of chemical catalysis, in particular to a Cu / ZnO-ZrO 2 Solid solution catalyst and its glow discharge plasma assisted preparation method and application. Background technique [0002] Since the 21st century, with the rapid growth of economic development, due to the combustion of a large amount of fossil fuels, CO 2 Emissions are also increasing, and the greenhouse effect caused by it poses a serious threat to the human and natural environment, and seriously damages the sound development of the social economy, which has attracted special attention from scholars at home and abroad. How to reduce CO 2 Emissions and the realization of its resource utilization have become one of the difficulties that current scientific research workers need to solve. In recent years, for the reduction, recovery and activation of carbon dioxide, countries have been unremittingly seeking effective methods and approaches, such as ...

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): B01J23/80B01J37/34C07C29/154C07C31/04B01J35/10
CPCB01J23/002B01J23/80B01J37/349C07C29/154B01J35/394B01J35/61C07C31/04Y02P20/52
Inventor 许琦程文强宋夫交程峰高佳
Owner YANCHENG INST OF TECH
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