Preparation method of octahedral cuprous oxide catalyst for synthesizing methyl chlorosilane monomers

A cuprous oxide and octahedral technology, which is applied in the field of preparation of octahedral cuprous oxide catalysts, can solve the problems of high cost, poorly controllable morphology, and difficulty in large-scale generation, and achieves low cost, simple preparation process, and controllability. Conditions and means easy to implement effect

Inactive Publication Date: 2016-05-04
HEBEI UNIV OF ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The main technical problem to be solved by the present invention is to provide a preparation method of octahedral cuprous oxide catalyst, which solves the proble

Method used

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  • Preparation method of octahedral cuprous oxide catalyst for synthesizing methyl chlorosilane monomers
  • Preparation method of octahedral cuprous oxide catalyst for synthesizing methyl chlorosilane monomers
  • Preparation method of octahedral cuprous oxide catalyst for synthesizing methyl chlorosilane monomers

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Experimental program
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Embodiment 1

[0033] See figure 1 As shown, the preparation method of the octahedral cuprous oxide catalyst provided in this embodiment includes:

[0034] Step 101: dissolving copper oxide powder in a mixed solution of ammonia water and ammonium salt to obtain a copper-containing mixed solution;

[0035] Step 102: Mix the obtained copper-containing mixed solution with ethylene glycol, add a strong base, and put it into a reaction kettle for solvothermal reaction;

[0036] Step 103: After the solvothermal reaction is completed, extract the obtained reaction product to obtain octahedral cuprous oxide. Extracting the obtained reaction product includes separating, washing and then vacuum drying the obtained reaction product. The specific separation, washing and vacuum drying techniques can be selected according to specific conditions.

[0037] In this example, copper oxide powder is used as the copper source, no structure-directing agent is added, and octahedral cuprous oxide is synthesized ...

Embodiment 2

[0047] In order to better understand the present invention, this embodiment further illustrates the present invention in conjunction with a specific example:

[0048] Take 0.6g copper oxide powder and dissolve in 9.0ml ammonia water containing ammonium carbonate (33.3wt%) to form a mixed solution. Then add 30.0ml of ethylene glycol (the volume ratio of the mixed solution to ethylene glycol is 0.3, and the concentration of copper ions is 0.2mol / l), stir well and add 0.8g of sodium hydroxide (0.5mol / l), then mix the above The solution was transferred to a 100ml stainless steel hydrothermal kettle, heated to 135°C and kept for 10h. After the reaction, the product was filtered, washed, and vacuum-dried to obtain a powder product.

[0049] The product obtained after the above drying was subjected to XRD test on a D / max-rB multifunctional X-ray diffractometer produced by Shimadzu Corporation of Japan. figure 2 It is the XRD spectrum pattern of the powder product that embodiment 1 ...

Embodiment 3

[0052] In order to better understand the present invention, this embodiment further illustrates the present invention in conjunction with a specific example:

[0053] Take 0.2g of copper oxide powder and dissolve in 5.0ml of ammonia water containing ammonium carbonate (33.3wt%) to form a mixed solution. Then add 50.0ml of ethylene glycol (the volume ratio of the mixed solution to ethylene glycol is 0.1, and the concentration of copper ions is 0.05mol / l), stir well and add 0.2g of sodium hydroxide (0.1mol / l), then mix the above The solution was transferred to a 100ml stainless steel hydrothermal kettle, heated to 180°C and kept for 6 hours. After the reaction, the product was filtered, washed, and vacuum-dried to obtain a powder product. The XRD spectrum confirmed that the product was cubic cuprous oxide. Scanning electron micrographs show that the cuprous oxide powder is octahedral in shape with a size of 5-8 μm. Transmission electron microscope photos further confirm that c...

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Abstract

The invention provides a preparation method of an octahedral cuprous oxide catalyst, belonging to the technical field of catalyst synthesis. The preparation method comprises the steps of dissolving copper oxide powder into ammonia water and an ammonium salt solution, then mixing the solution with ethanol, carrying out solvothermal reaction in the presence of strong alkali, separating and washing products, and carrying out vacuum drying, so as to obtain octahedral cuprous oxide. According to the preparation method, octahedral cuprous oxide is synthesized by taking commercial copper oxide powder as a copper source and ethanol as a reducing agent without adding a structure-directing agent, and compared with an existing preparation method utilizing the structure-directing agent, the cost is relatively low; furthermore, the shape of octahedral cuprous oxide can be regulated and controlled by regulating the copper ion concentration, the volume ratio of ethanol to water, the solvothermal temperature and time, and regulating and controlling conditions and measures are easy to implement; the whole technical process is carried out in a reaction kettle and is simple, convenient, efficient and environment-friendly, and scale production is easily realized. Furthermore, the obtained octahedral cuprous oxide catalyst can be further utilized for synthesizing methyl chlorosilane monomers.

Description

technical field [0001] The invention relates to the field of catalysts, in particular to a method for preparing an octahedral cuprous oxide catalyst. The octahedral cuprous oxide catalyst prepared by the method can be used to synthesize methylchlorosilane monomers. Background technique [0002] As a very important class of p-type transition metal oxides, cuprous oxide exhibits unique physical and chemical properties in the fields of electricity, gas sensing, and catalysis, and is widely used in photocatalysts, solar cells, and gas sensing elements, etc. important areas. The application of cuprous oxide in the above fields is affected by its shape, size and structure. In recent years, cuprous oxide materials with different morphologies have received widespread attention, and oxide materials with different morphologies such as nanowires, nanosheets, nanocages, hollow spheres, polyhedrons, sea urchins, flowers, and core-shell structures have been synthesized. Cuprous micro-na...

Claims

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Application Information

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IPC IPC(8): B01J23/72C01G3/02C07F7/16
CPCB01J23/72B01J35/026C01G3/02C01P2002/01C01P2002/72C01P2004/03C07F7/16
Inventor 刘爱凤车红卫
Owner HEBEI UNIV OF ENG
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