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A kind of sulfaquinoxaline cobalt-nickel nanocomposite material and preparation method thereof

A nano-composite material, quinoxaline cobalt-nickel technology, which is applied in the field of metal-organic nano-composite material catalysis, can solve the problems of cumbersome preparation steps, coordination of nickel catalysts, and reduced catalytic activity, and achieves broad application prospects, stable performance, Highly reactive effect

Active Publication Date: 2018-06-15
湖州优研知识产权服务有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, Inada uses Ni(PPh 3 ) 2 Cl 2 As a catalyst, p-chlorobenzonitrile, p-tolueneboronic acid, K 3 PO 4 ·nH 2 O is the substrate, toluene is the solvent, and the yield is 87% at 100 °C, but such nickel catalysts are easily coordinated by heteroatoms, resulting in reduced catalytic activity and reduced yield.
Regarding the preparation of nickel alloy nanomaterials, the current preparation steps are cumbersome and expensive

Method used

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  • A kind of sulfaquinoxaline cobalt-nickel nanocomposite material and preparation method thereof
  • A kind of sulfaquinoxaline cobalt-nickel nanocomposite material and preparation method thereof
  • A kind of sulfaquinoxaline cobalt-nickel nanocomposite material and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Weigh 0.1mmol of CoCl 2 ·6H 2 O and 0.9 mmol NiCl 2 ·6H 2 O was dissolved in 10mL water and stirred rapidly for 15min; 2.0mmol sulfaquinoxaline was weighed and dissolved in 10mL ethanol, stirred rapidly for 15min; under stirring, cobalt salt and nickel salt aqueous solution were mixed to form a mixed solution, and the mixed solution Add it dropwise to the ethanol solution of the sulfaquinoxaline ligand, stir at room temperature for 15 minutes, then microwave for 15 minutes, and ultrasonically disperse for 15 minutes to obtain a precipitated product. The precipitated product was centrifuged, washed with deionized water and ethanol three times, and dried to obtain the sulfaquinoxaline cobalt-nickel nanocomposite material. The morphology of the nanocomposite was observed with a scanning electron microscope, as figure 1 shown.

Embodiment 2

[0024] Weigh 0.9mmol of Co(NO 3 ) 2 ·6H 2 O and 0.1mmol Ni(NO 3 ) 2 ·6H 2 O was dissolved in 10mL water and stirred rapidly for 15min; 4.0mmol sulfaquinoxaline was weighed and dissolved in 20mL ethanol, stirred rapidly for 15min; under stirring, cobalt salt and nickel salt aqueous solution were mixed to form a mixed solution, and the mixed solution Add it dropwise to the ethanol solution of the sulfaquinoxaline ligand, stir at room temperature for 30 minutes, then microwave for 15 minutes, and ultrasonically disperse for 15 minutes to obtain a precipitated product. The precipitated product was centrifuged, washed with deionized water and ethanol three times, and dried to obtain the sulfaquinoxaline cobalt-nickel nanocomposite material.

Embodiment 3

[0026] Weigh 0.3mmol of CoSO 4 ·6H 2 O and 0.7 mmol NiSO 4 ·6H 2 O was dissolved in 10mL water and stirred rapidly for 15min; 2.0mmol sulfaquinoxaline was weighed and dissolved in 20mL ethanol, stirred rapidly for 15min; under stirring, cobalt salt and nickel salt aqueous solution were mixed to form a mixed solution, and the mixed solution Add dropwise to the ethanol solution of sulfaquinoxaline ligand, stir at room temperature for 30 minutes, react in microwave for 30 minutes, and disperse ultrasonically for 15 minutes to obtain a precipitated product. The precipitated product was centrifuged, washed with deionized water and ethanol three times, and dried to obtain the sulfaquinoxaline cobalt-nickel nanocomposite material.

[0027] With embodiment 1, the sulfaquinoxaline cobalt-nickel nanocomposite material prepared by embodiment 2 and embodiment 3 is example, carry out catalytic reaction:

[0028] Use the sulfaquinoxaline cobalt-nickel nanocomposite prepared in the above...

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Abstract

The invention discloses a sulfaquinoxaline cobalt-nickel nano composite material and a preparation method thereof. According to the invention, a certain amount of a metal salt solution is added to a sulfaquinoxaline-containing organic ligand, and the obtained product is stirred at a certain temperature. After the treatments of microwave reaction, ultrasonic dispersion, centrifugal separation, washing, and drying, a corresponding metal-ligand nano composite material is obtained. The method is simple in preparation process, low in cost and suitable for mass production. Through selecting different solvents, controlling the amounts of reactants, the reaction time and the reaction temperature, the particle size of sulfaquinoxaline cobalt-nickel nano composite material and the dispersibility thereof are effectively controlled. The prepared sulfaquinoxaline cobalt-nickel nano composite material is a functionalized composite material containing cobalt and nickel, and is stable in performance. The material can be used for catalyzing the C-C bond coupling reaction, and is high in catalytic efficiency. Therefore, the sulfaquinoxaline cobalt-nickel nano composite material has a wide application prospect in the catalysis field.

Description

technical field [0001] The invention belongs to the catalytic application field of metal-organic nanocomposite materials, and in particular relates to a sulfaquinoxaline cobalt-nickel nanocomposite material for catalytic coupling reaction and a preparation method thereof. Background technique [0002] Nanomaterials refer to materials that have at least one dimension in the three-dimensional space in the nanoscale range or are composed of them as basic units. Nanomaterials have aroused people's interest because of their special physical and chemical properties, and have become "stars" in material science. On the other hand, nanoparticles have high surface activity and excellent catalytic performance. [0003] At present, most of the catalysts for carbon-carbon coupling reaction are palladium nano-catalysts, noble metal nano-catalysts and nano-molecular sieve catalysts. In recent years, the research on nano-nickel catalysts has been continuously deepened, and the applicatio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J31/22C07B37/04C07C41/30C07C43/205C07C17/32C07C22/08C07C253/30C07C255/50
CPCB01J31/226B01J2231/4211B01J2531/0241B01J2531/845B01J2531/847C07B37/04C07C17/32C07C41/30C07C253/30C07C43/205C07C22/08C07C255/50
Inventor 邢方园李星赵亚云
Owner 湖州优研知识产权服务有限公司
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