Supercharge Your Innovation With Domain-Expert AI Agents!

Synthetic method for TiSiCeOx catalytic materials with adjustable specific surface areas

A technology of catalytic materials and molar ratios, applied in chemical instruments and methods, separation methods, catalysts for physical/chemical processes, etc., to achieve the effects of good economy, easy control of preparation conditions, and good application prospects

Active Publication Date: 2014-09-10
BEIJING UNIV OF TECH
View PDF4 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

So far, no literature and patents have reported such surface-area-tunable TiSiCeO x catalytic material

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
  • Synthetic method for TiSiCeOx catalytic materials with adjustable specific surface areas
  • Synthetic method for TiSiCeOx catalytic materials with adjustable specific surface areas
  • Synthetic method for TiSiCeOx catalytic materials with adjustable specific surface areas

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Weigh 10g PEG and dissolve in 200mL water, weigh Ce(NO 3 ) 3 ·6H 2 O2.17g was added to the above solution; TEOS44.65mL was weighed, dispersed in 50mL ethanol, added to the above solution, and continued to stir; 10% ammonia water was added dropwise to pH>9, stirred to obtain a white gel; aging 24h; filter, wash, dry at 120°C; roast at 450°C for 3h. Obtain 1# catalyst.

Embodiment 2

[0036] Weigh 10g PEG and dissolve in 200mL water, weigh Ce(NO 3 ) 3 ·6H 2 O2.17g was added to the above solution; weigh TEOS35.65mL, disperse it in 40mL ethanol, and add it to the above solution; measure TiCl 4 4.37mL, transferred to 10mL ethanol (ice-water bath), the resulting TiCl 4 Add the solution dropwise to the above mixture and continue to stir; add 10% ammonia water dropwise until pH>9, stir to obtain a white gel; age for 24 hours; filter, wash, and dry at 120°C; roast at 450°C for 3h. Get 2# sample.

Embodiment 3

[0038] Weigh 10g PEG and dissolve in 200mL water, weigh Ce(NO 3 ) 3 ·6H 2 Add O2.17g to the above solution; weigh TEOS26.72mL, disperse it in 30mL ethanol, and add it to the above solution; measure TiCl 4 8.77mL, transferred to 20mL ethanol (ice-water bath), the obtained TiCl 4 Add the solution dropwise to the above mixture and continue to stir; add 10% ammonia water dropwise until pH>9, stir to obtain a white gel; age for 24 hours; filter, wash, and dry at 120°C; roast at 450°C for 3h. Obtain 3# sample.

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 provides a synthetic method for TiSiCeOx catalytic materials with adjustable specific surface areas, which belongs to the technical field of oxide catalysts. According to the invention, polyethylene glycol (PEG) is used as a dispersant, TiSiCeOx materials with different Ti / Si ratios are prepared by using a hydrolysis method, and the specific surface areas of the materials can be realized by adjusting feeding ratios of Ti / Si; pore size distribution of the materials is narrow. According to the invention, raw materials are cheap and easily available, preparation process is simple, preparation conditions are easily controllable, product morphology and size are controllable, and the prepared TiSiCeOx materials have certain NH3-SCR catalytic activity and N2 selectivity.

Description

technical field [0001] The invention relates to a method for synthesizing a catalytic material with an adjustable specific surface area, and belongs to the technical field of oxide catalysts. Background technique [0002] In the field of heterogeneous catalysis, (non-) metal oxides are often used as supports or active components, where oxides such as alumina (Al 2 o 3 ), titanium dioxide (TiO 2 ), cerium oxide (CeO 2 ), silicon dioxide (SiO 2 ) are widely used in VOCs catalytic oxidation, automotive three-way catalysts, and SCR catalysts. Currently, nitrogen oxides NO x It is one of the main air pollutants, mainly from automobile exhaust and industrial emissions. In order to create a better atmospheric environment, control and reduce NO x emissions, the State Council has issued relevant provisions on air pollution control, clarifying the planning and requirements for controlling nitrogen oxide emissions. while achieving NO x It puts forward higher requirements for t...

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): B01J23/10B01J35/10B01D53/90B01D53/56
Inventor 何洪宋丽云晁晶迪刘晓军房玉娇张然
Owner BEIJING 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