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

Iron-cobalt organic catalyst, preparation method thereof and application of iron-cobalt organic catalyst in synthesis of benzoazacycle by CO2 conversion

An organic catalyst and catalyst technology, applied in organic compound/hydride/coordination complex catalysts, chemical instruments and methods, organic chemistry, etc., can solve the problems of reactor requirements, tedious preparation of photosensitizers, etc., and achieve preparation Simple method, high reproducibility, large surface area effect

Active Publication Date: 2020-11-03
HANGZHOU NORMAL UNIVERSITY
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The symmetrical photocatalyst provided by the present invention extends the photoresponse of the ternary composite photocatalyst to the visible light region through the introduction of the electron transport layer and the photosensitizer component, and at the same time promotes the effective separation of photogenerated electron-hole pairs, and enhances the photocatalytic properties of the composite catalyst. The ability of catalytic reduction of CO2; after matching the double-chamber photoreactor, the double-sided symmetric ternary composite catalyst can make the photocatalytic water oxidation and CO2 reduction reaction respectively in It is carried out in an independent area, which reduces the occurrence of reverse reactions and further improves the photocatalytic CO2 reduction efficiency, but the preparation of the photosensitizer is cumbersome and requires a reactor

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
  • Iron-cobalt organic catalyst, preparation method thereof and application of iron-cobalt organic catalyst in synthesis of benzoazacycle by CO2 conversion

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] A preparation method for an iron-cobalt organic catalyst, comprising the steps of: adding 0.1mmol terephthalic acid to a mixed solvent of DMF and dehydrated alcohol in a volume ratio of 1:0.1 in 50mL and stirring to dissolve, then adding 1mmol FeCl 3 Stir for 10 minutes, then add 10mmol Co(NO 3 ) 2 ·6H 2 O stirred for 10 minutes, and reacted at 200°C for 15 hours. After the product was alternately washed with absolute ethanol and DMF for 4 times, the quality would no longer decrease. drying in an oven, and drying at 100° C. for 5 hours to obtain an iron-cobalt organic catalyst.

[0017] The SEM figure of described iron-cobalt organocatalyst is as figure 1 As shown, the catalyst is a microsphere with a diameter of 200-400nm, and there are layered crystals on the surface of the microsphere.

[0018] Applying the iron-cobalt organocatalyst to the conversion of CO 2 Synthesis of benzoazepine heterocycles: Add 1 mg of the iron-cobalt organic catalyst to 5 mL of 0.05 mmo...

Embodiment 2

[0020] A preparation method for an iron-cobalt organic catalyst, comprising the steps of: adding 0.5 mmol of 1,4,5,8-naphthalene tetracarboxylic acid and stirring and dissolving in a mixed solvent of DMF and absolute ethanol at a volume ratio of 1:10 in 50 mL, Then add 5mmol FeCl 3 Stir for 15 minutes, then add 5mmolCo(NO 3 ) 2 ·6H 2 O stirred for 5 minutes, reacted at 150°C for 10 hours, the product was alternately washed with absolute ethanol and DMF for 5 times, and the quality no longer decreased. The amount of each washing liquid was 10ml of mixed solution per mole of product, and the product was put into vacuum drying drying in an oven, and drying at 80° C. for 10 hours to obtain an iron-cobalt organic catalyst.

[0021] The iron-cobalt organic catalyst is a microsphere with a diameter of 300-400nm, and layered crystals are formed on the surface of the microsphere.

[0022] Applying the iron-cobalt organocatalyst to the conversion of CO 2 Synthesis of benzazepine ri...

Embodiment 3

[0024] A preparation method for an iron-cobalt organic catalyst, comprising the steps of: adding 1 mmol of 2,5-pyridinedicarboxylic acid to a mixed solvent of 1:5 DMF and absolute ethanol in a volume ratio of 50 mL, stirring and dissolving, then adding 10 mmol FeCl 3 Stir for 5 minutes, then add 1 mmol Co(NO 3 ) 2 ·6H 2 O stirred for 5 minutes, and reacted at 180°C for 20 hours. After the product was alternately washed with absolute ethanol and DMF for 4 times, the mass no longer decreased. The amount of each washing solution was 5ml of mixed solution per mole of product, and the product was put into vacuum drying. drying in an oven, and dried at 90° C. for 8 hours to obtain an iron-cobalt organic catalyst.

[0025] The iron-cobalt organic catalyst is a microsphere with a diameter of 200-400nm, and layered crystals are formed on the surface of the microsphere.

[0026] Applying the iron-cobalt organocatalyst to the conversion of CO 2Synthesis of benzoazepine heterocycles: ...

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
Diameteraaaaaaaaaa
Login to View More

Abstract

The invention relates to the field of catalysts, and provides an iron-cobalt organic catalyst which is a microsphere with the diameter of 200-400 nm and has layered crystals on the surface in order tosolve the problem of strict photocatalytic reaction conditions of CO2 as a raw material. The contact area of reactants and the catalyst is increased by intervals formed among the catalyst particles.The invention also provides a preparation method of the iron-cobalt organic catalyst, which comprises the following steps: adding aromatic acid into a mixed solvent of DMF and absolute ethyl alcohol,stirring the components to dissolve, sequentially adding FeCl3 and Co(NO3)2.6H2O, stirring the components, reacting at 150-200 DEG C for 10-20 hours, washing the product, and drying the product. The preparation method is simple and high in repeatability. The invention also provides an application of the iron-cobalt organic catalyst in synthesis of benzoazacycle by conversion of CO2, reaction conditions are mild, greenhouse gas can be effectively fixed, and a drug intermediate with added value is generated.

Description

technical field [0001] The invention relates to the field of catalysts, in particular to an iron-cobalt organic catalyst and its preparation method and its conversion of CO 2 Synthesis of benzazepine applications. Background technique [0002] CO 2 It is a large amount, non-toxic and stable greenhouse gas in nature. With the development of global industry and the rapid increase of population, every year CO 2 Emissions are skyrocketing, leading to the destruction of the ecological environment. Therefore, the CO 2 The efficient transformation of green into other compounds has been a very hot research topic. There is currently a large amount of CO 2 Physically sealed on the seabed, although it can store a large amount of greenhouse gases in the short term, there are still many disadvantages, which is a major hidden danger to the ecological environment and cannot fundamentally solve the problem of CO 2 Excessive emission problems. It can also be stored or reacted into C1...

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): B01J31/22B01J35/08B01J35/02B01J35/10C07D239/74
CPCB01J31/223C07D239/74B01J2531/842B01J2531/845B01J35/40B01J35/51B01J35/61
Inventor 郑辉沈圆芳杨思炜孙灿解汭滢李赛娅
Owner HANGZHOU NORMAL UNIVERSITY
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