Preparation method of carbon-coated cuprous oxide and carbon-coated cuprous oxide

A technology of cuprous oxide and carbon coating, which is applied in chemical instruments and methods, metal/metal oxide/metal hydroxide catalysts, physical/chemical process catalysts, etc., can solve the complex process of cuprous oxide, high cost, To solve the problem of low output, achieve the effect of good shape, large output and uniform particle size distribution

Active Publication Date: 2014-09-10
SHENZHEN EIGEN EQUATION GRAPHENE TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] In view of the above-mentioned deficiencies in the existing preparation technology, the purpose of the present invention is to provide a method for preparing carbon-coated cuprous oxide, which aims to solve the problems in the prior art that the preparation process of cuprous oxide is complicated, and the cost is high and the output is low

Method used

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  • Preparation method of carbon-coated cuprous oxide and carbon-coated cuprous oxide
  • Preparation method of carbon-coated cuprous oxide and carbon-coated cuprous oxide
  • Preparation method of carbon-coated cuprous oxide and carbon-coated cuprous oxide

Examples

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Embodiment 1

[0060] Stir 2g of homemade liquid acrylonitrile oligomer solution LPAN (molecular weight 4000) at 120°C for 120h to form a microcyclized LPAN solution, heat treat the microcyclized LPAN solution at 200~300°C for 8h, and form a Thermally oxidized polyacrylonitrile oligomer (OPAN) solid with trapezoidal structure, add 11.25g of copper oxide, 15-30ml of solvent, and use a planetary ball mill to grind the sample with a ball-to-material ratio of 15:1, 400rad / min ball mill for 10h, and produce After feeding, it was dried in an oven at 220°C for 3 hours to obtain a thermally oxidized precursor. Put the thermal oxidation precursor in a porcelain boat, and under the protection of an inert atmosphere, the gas flow rate is 150ml / min, calcined at 350°C for 4h, and cooled to room temperature to obtain a mixture of carbon-coated copper and carbon-coated cuprous oxide. The product structure is as follows Figure 1 to Figure 3 shown.

Embodiment 2

[0062] Stir 4g of polypyrrole (molecular weight 4000) at 120°C for 120h to form a micro-cyclized solution, heat-treat the micro-cyclized solution at 200-300°C for 8h to form thermally oxidized pyrrole oligomers with a certain ladder structure (OPly) solid, add 10g of copper oxide, 15-30ml of solvent, and ball mill the sample with a planetary ball mill, the ball-to-material ratio is 15:1, 400rad / min ball mill for 8h, after discharging, dry in an oven at 220°C for 3h to obtain the pre-thermal oxidation body. Put the thermal oxidation precursor in a porcelain boat, under the protection of an inert atmosphere, the gas flow rate is 150ml / min, calcined at 300°C for 4h, and cooled to room temperature to obtain a mixture of a small amount of carbon-coated cuprous oxide and carbon-coated cupric oxide, the product structured as Figure 4 and Figure 5 shown.

Embodiment 3

[0064] Stir 10g of polythiophene (molecular weight 4000) at 120°C for 120h to form a microcyclized polythiophene solution, then heat-treat the microcyclized polythiophene solution at 200~300°C for 8h to form a thermally oxidized polythiophene solution with a certain trapezoidal structure. Thiophene oligomer (OPTh) solid, add 6.25g copper oxide, 15-30ml deionized water as a solvent, and use a planetary ball mill to grind the sample with a ball-to-material ratio of 15:1, 400rad / min ball mill for 8h, after discharging, 220 ℃ oven drying for 3h to obtain the thermal oxidation precursor. Put the thermal oxidation precursor in a porcelain boat, under the protection of an inert atmosphere, with a gas flow rate of 150ml / min, calcinate at 250°C for 4h, and cool to room temperature to obtain a mixture of carbon-coated cuprous oxide and a small amount of carbon-coated cupric oxide, the product structured as Figure 6 and Figure 7 shown.

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Abstract

The invention discloses a preparation method of carbon-coated cuprous oxide and a carbon-coated cuprous oxide. The method comprises the following steps: stirring a liquid acrylonitrile low polymer solution to form a microcyclized acrylonitrile low polymer solution; carrying out heat treatment to form a polyacrylonitrile low polymer; mixing the polyacrylonitrile low polymer subjected to thermal oxidation and copper compound, adding a hydrophilic solvent or hydrophobic solvent, and uniformly mixing to obtain an acrylonitrile low polymer coated copper compound; drying the obtained acrylonitrile low polymer coated copper compound in a drying oven to obtain a low-temperature carbonized precursor coated copper compound; and obtaining the carbon-coated cuprous oxide in an inert protective atmosphere. The carbon-coated cuprous oxide has the advantages of simple equipment and technique, low cost, high purity, high yield, uniform particle size distribution, favorable appearance and the like. The porous carbon layer coated outside the cuprous oxide can effectively control the release rate of the cuprous oxide, and thus, the carbon-coated cuprous oxide can be used as an antifoulant additive for marine antifouling paint.

Description

technical field [0001] The invention relates to the field of preparation methods of cuprous oxide, in particular to a preparation method of carbon-coated cuprous oxide and carbon-coated cuprous oxide prepared by the method. Background technique [0002] Nano-cuprous oxide is a vacancy P-type semiconductor material under visible light response, with a band gap of about 2.0 eV. Its unique optical and electrical properties can be widely used in marine antifouling coatings, catalysts, solar cells, sensors and other materials . However, cuprous oxide is easily oxidized in air, which greatly limits its wide application in high temperature and oxygen environment. Therefore, the research on the surface modification of cuprous oxide has attracted the attention of many scholars at home and abroad. become a research hotspot. In recent years, with the in-depth research of cuprous oxide nanomaterials, its broad application prospects are constantly showing. [0003] The vast ocean has ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09C1/00C09C3/06C09D7/12C09D5/16B01J23/72
Inventor 刘剑洪张黔玲何传新徐坚李晓明廖楚宏任响宁
Owner SHENZHEN EIGEN EQUATION GRAPHENE TECH CO LTD
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