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A cuprous oxide micron hollow sphere and its synthesis method and application method

A technology of cuprous oxide and synthesis method, applied in copper oxide/copper hydroxide and other directions, can solve the problems of high energy consumption and time cost, difficulty in large-scale application, cumbersome product processing, etc., and achieves reduced energy consumption, good light Catalytic ability and gas-sensing performance, effect of short synthesis time

Inactive Publication Date: 2015-09-30
WUHAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the above studies can synthesize cuprous oxide micron hollow spheres without a template, additives are used in the process, and the synthesis of high-purity, regular-shaped cuprous oxide micron hollow spheres requires a long reaction time, which consumes too much energy and time. However, the usual template method synthesis requires more complicated synthesis steps, and the product processing is more cumbersome and easily causes changes in crystal morphology. At the same time, a large amount of surfactant needs to be added to control the morphology during the synthesis process, which increases the cost of material preparation. It is difficult to Large-scale application in industrial production
No organic template agent and additional additives are added, and high-purity, regular-shaped cuprous oxide micron hollow spheres with high-energy surface exposure can be rapidly synthesized in a short time, which has not been reported so far.

Method used

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  • A cuprous oxide micron hollow sphere and its synthesis method and application method
  • A cuprous oxide micron hollow sphere and its synthesis method and application method
  • A cuprous oxide micron hollow sphere and its synthesis method and application method

Examples

Experimental program
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Embodiment 1

[0038] A method for synthesizing cuprous oxide micron hollow spheres, comprising the following steps:

[0039] (1) Weigh 0.002mol of copper nitrate (analytical grade) and add it into the mixed solution of water and organic solvent (40 ml of ethylene glycol, 1 ml of deionized water), stir until completely dissolved, and obtain a light blue transparent liquid;

[0040] (2) Transfer the solution described in step (1) into the liner of a 50 ml polytetrafluoroethylene hydrothermal kettle, put on a steel sleeve, put it into an oven that has been heated to 60 °C in advance, and set the reaction temperature to 180 °C ℃, keep warm for 60 minutes after reaching the reaction temperature, and then cool naturally;

[0041] (3) The brick-red turbid liquid obtained in step (2) was centrifuged (5000 r / m), and the obtained brick-red solid was washed with ethanol and dried in an oven at 40°C to obtain cuprous oxide micron hollow spheres.

[0042] The product obtained in this example was determ...

Embodiment 2

[0044] A method for synthesizing cuprous oxide micron hollow spheres, comprising the following steps:

[0045] (1) Weigh 0.002mol of copper nitrate (analytical grade) and add it into the mixed solution of water and organic solvent (40 ml of ethylene glycol, 2 ml of deionized water), stir until completely dissolved, and obtain a light blue transparent liquid;

[0046] (2) Transfer the solution described in step (1) into the liner of a 50 ml polytetrafluoroethylene hydrothermal kettle, put on a steel sleeve, put it into an oven that has been heated to 60 °C in advance, and set the reaction temperature to 180 °C ℃, keep warm for 60 minutes after reaching the reaction temperature, and then cool naturally;

[0047](3) The brick-red turbid liquid obtained in step (2) was centrifuged (5000 r / m), and the obtained brick-red solid was washed with ethanol and dried in a 40°C oven to obtain cuprous oxide micron hollow spheres.

[0048] The product obtained in this embodiment is determine...

Embodiment 3

[0052] A method for synthesizing cuprous oxide micron hollow spheres, comprising the following steps:

[0053] (1) Weigh 0.002mol of copper nitrate (analytical grade) and add it to the mixed solution of water and organic solvent (40 ml of ethylene glycol, 3 ml of deionized water), stir until completely dissolved, and obtain a light blue transparent liquid;

[0054] (2) Transfer the solution described in step (1) into the liner of a 50 ml polytetrafluoroethylene hydrothermal kettle, put on a steel sleeve, put it into an oven that has been heated to 60 °C in advance, and set the reaction temperature to 180 °C ℃, keep warm for 60 minutes after reaching the reaction temperature, and then cool naturally;

[0055] (3) The brick-red turbid liquid obtained in step (2) was centrifuged (5000 r / m), and the obtained brick-red solid was washed with ethanol and dried in an oven at 40°C to obtain cuprous oxide micron hollow spheres.

[0056] The product obtained in this example was determin...

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Abstract

The invention relates to a cuprous oxide micron hollow sphere and its synthetic method. The method includes: (1) adding a soluble copper salt into a mixed solution of water and an organic solvent, mixing them uniformly, controlling the volume ratio of the water to the organic solvent at (0.025-0.25):1, and keeping the ratio of copper ions to the organic solvent at (0.01-0.6)mol:1L; (2) transferring the solution in step (1) into a reaction container, sealing the reaction container, then placing it a reaction environment of 20-80DEG C, further raising the temperature to a reaction temperature of 160-220DEG C, performing reaction for 0.25-6h, and then conducting natural cooling; and (3) separating the solid obtained in step (2), carrying out washing and drying, thus obtaining the cuprous oxide micron hollow sphere. Without using any organic template agent and additive, the high purity cuprous oxide micron hollow sphere with a high-energy exposed surface can be rapidly synthesized by a one-pot hydrothermal technique.

Description

technical field [0001] The invention relates to a cuprous oxide micron hollow sphere, a synthesis method and an application method thereof, and belongs to the technical field of chemical preparation of inorganic materials. technical background [0002] Cuprous oxide is a p-type semiconductor with a bandgap of 2.17 eV and a specific centered cubic structure. In recent years, both the synthesis and application of cuprous oxide materials have attracted extensive attention from researchers from various countries. Cuprous oxide is widely used in solar energy conversion, gas sensor, photocatalyst, magnetic memory, lithium battery anode material, etc. The shape and dimension of cuprous oxide have a great influence on its application. The specific surface area and grain composition of cuprous oxide with different dimensions are quite different, which has a great influence on its performance. Different polyhedrons have different types of crystal planes, and the surface energy, degr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01G3/02B01J23/72
Inventor 李昱陈代松王洪恩黄绍专金俊邓兆陈丽华阳晓宇苏宝连
Owner WUHAN UNIV OF TECH
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