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

Hydrophobic catalyst with two-dimensional open hydrophobic space and preparation method thereof

A catalyst and open technology, applied in organic chemical methods, preparation of organic compounds, preparation of carbon-based compounds, etc., can solve rare problems and achieve uniform dispersion and high-efficiency catalytic oxidation reactions

Inactive Publication Date: 2013-01-02
BEIJING UNIV OF CHEM TECH
View PDF1 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the phospholipid-like bilayer structure has received more and more attention, but there are still very few reports on its catalytic application.

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
  • Hydrophobic catalyst with two-dimensional open hydrophobic space and preparation method thereof
  • Hydrophobic catalyst with two-dimensional open hydrophobic space and preparation method thereof
  • Hydrophobic catalyst with two-dimensional open hydrophobic space and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Step A: Add Zn(NO 3 ) 2 ·6H 2 O 0.007mol (about 2.0824g), Al(NO 3 ) 3 9H 2 O0.0035mol (about 1.31295g), urea 0.0245mol (about 1.4715g), prepared urea concentration 0.035mol / L, Zn 2+ Concentration 0.01mol / L, Al 3+ A solution with a concentration of 0.005mol / L. Set magnetic stirring at 105°C in an oil bath, and reflux for 27 hours. 4 times of deionized water, 3 times of anhydrous ethanol suction filtration and washing, and vacuum drying at room temperature for 12 hours to obtain Zn-Al-CO 3 LDHs.

[0025] Step B: DeCO in 600mL 2 Add Zn-Al-CO in deionized water 3 LDHs0.6000g, NaNO 3 76.4910g, HNO 3 200μL, prepared hydrotalcite 1.000g / L, NaNO 3 Concentration 1.5mol / L, HNO 3 A mixed solution with a concentration of 0.005mol / L. Under a nitrogen atmosphere, the reaction was carried out at room temperature for 48 h. Centrifuge and wash multiple times. Dry at room temperature in vacuum for 12h to get Zn-Al-NO 3 LDHs.

[0026] Step C: DeCO in 200mL 2 Add Zn-Al-...

Embodiment 2

[0030] Step A: Take a method similar to step A in Example 1 to obtain Zn-Al-CO 3 LDHs.

[0031] Step B: Obtain Zn-Al-NO by the method similar to Step B in Example 1 3 LDHs precursor.

[0032] Step C: DeCO in 200mL 2 Add Zn-Al-NO in deionized water 3 LDHs0.5g, sodium dodecylbenzenesulfonate 0.07mol / L (about 4.8787g). Set magnetic stirring at 70°C in an oil bath, and react for 48 hours. After centrifugation, washing several times, and vacuum drying at room temperature for 24 hours, Zn-Al-DBS LDHs were obtained.

[0033] Step D: Add 0.1 g of Zn-Al-DBS LDHs to 200 mL of n-butanol, and reflux at 120° C. for 36 h. Add 0.02 g of Mn(TPP)OAc, stir and mix for 12 hours, evaporate the solvent, centrifuge at 5000 rpm, and wash with ethanol and dichloromethane. Vacuum drying, room temperature 12h, the product [Zn 0.66 Al 0.34 (OH) 2 ][(DBS 2- ) 0.17 (Mn(TPP)OAc) 0.0143 ]·0.21H 2 O.

[0034]Add 1 mg of the synthesized catalyst into an anhydrous and anaerobic reaction tube con...

Embodiment 3

[0036] Step A: Take a method similar to step A in Example 1 to obtain Zn-Al-CO 3 LDHs.

[0037] Step B: Obtain Zn-Al-NO by the method similar to Step B in Example 1 3 LDHs precursor.

[0038] Step C: DeCO in 200mL 2 Add Zn-Al-NO in deionized water 3 LDHs0.5g, sodium dodecylsulfonate (SAS) 0.05mol / L (about 2.7238g). Set magnetic stirring at 70°C in an oil bath, and react for 48 hours. Centrifuge, wash several times, and vacuum dry at room temperature for 24 hours to obtain Zn-Al-AS LDHs.

[0039] Step D: Add 0.1 g of Zn-Al-AS LDHs to 200 mL of n-butanol, and reflux at 120° C. for 36 h. Add 0.02 g of tetraphenylporphine ferric chloride Fe(TPP)Cl, stir and mix for 12 hours, evaporate the solvent, centrifuge at 5000 rpm, and wash with ethanol and dichloromethane. Vacuum drying, room temperature 12h, the product [Zn 0.62 Al 0.38 (OH) 2 ][(AS 2- ) 0.19 (Fe(TPP)Cl) 0.0107 ]·0.32H 2 o).

[0040] Add 1 mg of the synthesized catalyst into an anhydrous and anaerobic reacti...

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 hydrophobic catalyst with two-dimensional open hydrophobic space, which belongs to the technical field of catalysts. The catalyst is an oxidation catalyst with a supramolecular phospholipid-like bi-molecule layer intercalated structure, a metal complex B is inserted into the layers of amphiphilic anionic dydrotalcite [M<2+>1-xM<3+>x(OH)2]<x+> (A<n->)x / n.mH2O, wherein A is an amphiphilic anion. A preparation method for the catalyst comprises the following steps: preparing a hydrotalcite precursor with NO3<-> ions as interlayer anions; then introducing the amphiphilic anion into the hydrotalcite precursor with the NO3<-> ions as the interlayer anions by using an ion exchange method so as to obtain amphiphilic anion intercalated hydrotalcite; and then swelling the hydrotalcite with hydrophobic space by using n-butanol, adding the metal complex, carrying out mixing under stirring, evaporating a solvent for recombination and carrying out washing and drying. The hydrophobic catalyst provided by the invention has significantly improved activity compared with a corresponding homogeneous metal complex catalyst.

Description

technical field [0001] The invention belongs to the technical field of catalysts, and in particular provides a catalyst which simulates the bimolecular layer structure of phospholipids in living organisms and has a two-dimensional open hydrophobic space and a preparation method thereof. Background technique [0002] Selective oxidation is the core technology for converting most compounds into high-yield oxygenates. Among the common metal catalysts for catalytic selective oxidation, since Ru has a valence state of 0 to +8 and forms a variety of oxidation states through different oxidation mechanisms, it can efficiently catalyze a variety of oxidation reactions such as alkane oxidation, olefin compound ring Oxidation and oxidative cracking, oxidation of ether and alcohol compounds and oxidation of amine and amide compounds. However, as a rare precious metal, Ru's limited output and high price limit the large-scale commercial application of Ru, so the substitution of precious ...

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): B01J31/26B01J35/02C07B33/00C07D301/08C07D303/04C07D303/14C07C45/38C07C47/54C07C49/86
Inventor 何静刘玉清
Owner BEIJING UNIV OF CHEM TECH
Features
  • Generate Ideas
  • 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