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Sea urchin shaped copper oxide catalyst, as well as preparation method and application thereof

A technology of copper oxide and catalyst, which is applied in the field of direct synthesis of organosilicon monomers, can solve the problems of unfavorable large-scale production and high synthesis cost, and achieve the effects of industrial synthesis, simple operation, and high specific surface area

Inactive Publication Date: 2012-08-22
INST OF PROCESS ENG CHINESE ACAD OF SCI +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] It can be seen from the above-mentioned report on the preparation method of sea urchin-shaped copper oxide that a dispersant is generally introduced in the preparation process and microwave heating is used for reaction, so the synthesis cost is relatively high, which is not conducive to large-scale production
[0008] In addition, the application research reports of sea urchin-like copper oxide in the field of catalysis are also limited to liquid-solid phase catalytic reactions, such as photocatalytic degradation of dyes or oxidation reactions of organic alcohols, while for gas-solid phase heterogeneous catalytic reactions such as industrial direct methods There are no relevant reports on the application of synthetic organosilicon monomers

Method used

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  • Sea urchin shaped copper oxide catalyst, as well as preparation method and application thereof
  • Sea urchin shaped copper oxide catalyst, as well as preparation method and application thereof
  • Sea urchin shaped copper oxide catalyst, as well as preparation method and application thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0049] Weigh 1.0gCu(NO 3 ) 2 ·3H 2 O was dissolved in a mixed solvent formed by 40.0ml of absolute ethanol and 10.0ml of ethylene glycol (the concentration of copper ions was 0.08mol / L), and 30.0ml of concentrated ammonia (commercially available mass fraction was 25-28wt%) was added successively at room temperature , 10.0ml NaOH solution (concentration is 1mol / L), after stirring for 10 minutes, a clear and transparent blue solution (concentration of ammonia is 4.9mol / L, concentration of NaOH is 0.1mol / L), and then transferred to 100ml lined with polytetrafluoroethylene In a stainless steel reaction kettle of ethylene, the temperature was raised to 130° C. for 16 hours. After the reaction, the black product was filtered, washed five times with water and absolute ethanol, and dried in a vacuum oven at 60° C. for 8 hours to obtain 0.30 g of regular sea urchin-shaped copper oxide catalyst with a yield of 91.0 wt%.

[0050] The surface morphology of the sea urchin-like copper ox...

Embodiment 2

[0054] Weigh 0.6gCu(NO 3 ) 2 ·3H 2 O was dissolved in a mixed solvent formed by 20.0ml of absolute ethanol and 30.0ml of ethylene glycol (the concentration of copper ions was 0.05mol / L), and 25.0ml of concentrated ammonia (commercially available mass fraction was 25-28wt%) was added successively at room temperature , 5.0ml NaOH solution (concentration is 1mol / L), after stirring for 10 minutes, a clear and transparent blue solution (concentration of ammonia is 4.6mol / L, concentration of NaOH is 0.1mol / L), and then transferred to 100ml lined polytetrafluoroethylene In a stainless steel reactor made of ethylene, the temperature was raised to 150° C. for 10 h. After the reaction, the black product was filtered, washed five times with water and absolute ethanol, and dried in a vacuum oven at 60° C. for 8 hours to obtain 0.19 g of copper oxide catalyst with a yield of 96.0 wt%. XRD spectrum analysis shows that the crystal structure of the product is cubic CuO, and the SEM photo s...

Embodiment 3

[0056] Weigh 2.0gCu(NO 3 ) 2 ·3H 2O was dissolved in a mixed solvent formed by 30.0ml absolute ethanol and 20.0ml ethylene glycol (copper ion concentration was 0.16mol / L), and 35.0ml concentrated ammonia water (commercially available mass fraction was 25-28wt%) was added successively at room temperature , 15.0ml NaOH solution (concentration is 1mol / L), after stirring for 10 minutes, a clear and transparent blue solution (concentration of ammonia is 5.2mol / L, concentration of NaOH is 0.2mol / L), and then transferred to 150ml lined with polytetrafluoroethylene In a stainless steel reaction kettle of ethylene, the temperature was raised to 140° C. for 15 hours. After the reaction, the black product was filtered, washed five times with water and absolute ethanol, and dried in a vacuum oven at 60° C. for 8 hours to obtain 0.62 g of copper oxide catalyst with a yield of 93.9 wt%. XRD spectrum analysis shows that the crystal structure of the product is cubic CuO, and SEM photos sho...

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Abstract

The invention relates to a sea urchin shaped copper oxide catalyst, as well as a preparation method and application thereof, and belongs to the field of catalysts. The preparation method for the sea urchin shaped copper oxide catalyst comprises the following steps of: dissolving a copper salt and a dispersant into an organic solvent, performing solvent heat reaction in an alkali environment, and thus obtaining the sea urchin shaped copper oxide catalyst. The method for preparing the sea urchin shaped copper oxide is concise, easy and convenient to operate, efficient, low in price and environment-friendly, and realizes large-scale preparation. The sea urchin shaped copper oxide catalyst prepared by the method is controllable in shape and granular size, and can be used for synthesizing organic silicon monomers.

Description

technical field [0001] The invention relates to a copper oxide catalyst, its preparation method and its use, in particular to a copper oxide catalyst with a regular sea urchin shape, its preparation method and its application in the field of direct method synthesis of organosilicon monomers. Background technique [0002] As a type of p-type transition metal oxide, copper oxide exhibits unique physical and chemical properties in the fields of electricity, magnetism, and catalysis, and is widely used in important fields such as printing and dyeing, ceramics, electrode active materials, and catalysts. The physical and chemical properties of copper oxide are influenced by morphology, size and structure. In recent years, copper oxide materials with different morphological structures have attracted great interest, and copper oxide nanowires, nanorods, nanosheets, nanotubes, nanobelts, etc. have been prepared by different methods. Some more complex structures such as flower-like, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/72B01J35/02C07F7/16
Inventor 苏发兵车红卫王莹利翟世辉朱德洪
Owner INST OF PROCESS ENG CHINESE ACAD OF SCI
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