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Cuprous oxide nano hollow spheres as well as synthetic method and application method thereof

A technology of cuprous oxide and synthesis method, applied in the direction of copper oxide/copper hydroxide, nanotechnology, nanotechnology, etc., can solve the problems of cumbersome product processing, large material size, small specific surface area, etc., and achieve excellent lithium battery performance and dye The effect of adsorption capacity, simple preparation process and simple experimental equipment

Inactive Publication Date: 2013-11-13
WUHAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, many synthetic methods now require more complex synthesis steps, and the product processing is more cumbersome. During the synthesis process, a large amount of surfactant needs to be added to control the morphology, which increases the cost of material preparation, and is difficult to apply in large-scale industrial production. Moreover, the prepared material has a large size and a small specific surface area, and its performance in lithium battery and dye adsorption is very limited.

Method used

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  • Cuprous oxide nano hollow spheres as well as synthetic method and application method thereof
  • Cuprous oxide nano hollow spheres as well as synthetic method and application method thereof
  • Cuprous oxide nano hollow spheres as well as synthetic method and application method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] A method for synthesizing nano cuprous oxide hollow spheres, comprising the following steps:

[0038] (1) Weigh 0.004 mol of copper nitrate (analytical pure) into a beaker, then add 80 ml of ethylene glycol (analytical pure), stir magnetically until the copper nitrate solid is completely dissolved, and a light blue transparent solution is obtained;

[0039] (2) Transfer the solution described in step (1) into the liner of a 100 ml polytetrafluoroethylene hydrothermal kettle, put on a steel sleeve, put it into an oven that has been heated to 140 ℃ in advance, keep it warm for 3 hours, and cool naturally ;

[0040] (3) The yellow turbid liquid obtained in step (2) was centrifuged (centrifugal speed 5000 r / m), the obtained yellow solid was washed with ethanol, and dried in an oven at 40 °C to obtain hollow cuprous oxide nanospheres.

[0041] The product obtained in this embodiment is determined to be a cubic phase cuprous oxide crystal through X-ray diffraction, and the X...

Embodiment 2

[0045] A method for synthesizing nano cuprous oxide hollow spheres, comprising the following steps:

[0046] (1) Weigh 0.004 mol of copper nitrate (analytical pure) into a beaker, then add 80 ml of ethylene glycol (analytical pure), stir magnetically until the copper nitrate solid is completely dissolved, and a light blue transparent solution is obtained;

[0047] (2) Transfer the solution described in step (1) into the liner of a 100 ml polytetrafluoroethylene hydrothermal kettle, put on a steel jacket, put it into an oven that has been heated to 160 °C in advance, keep it warm for 2 hours, and cool naturally ;

[0048] (3) The yellow turbid liquid obtained in step (2) was centrifuged (centrifugal speed 5000 r / m), the obtained yellow solid was washed with ethanol, and dried in an oven at 40 °C to obtain hollow cuprous oxide nanospheres.

[0049] The product obtained in this example was determined to be a cubic cuprous oxide crystal through X-ray diffraction; scanning electron ...

Embodiment 3

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

[0053] (1) Weigh 0.004 mol of copper nitrate (analytical pure) into a beaker, then add 80 ml of ethylene glycol (analytical pure), stir magnetically until the copper nitrate solid is completely dissolved, and a light blue transparent solution is obtained;

[0054] (2) Transfer the solution described in step (1) into the liner of a 100 ml polytetrafluoroethylene hydrothermal kettle, put on a steel jacket, put it into an oven that has been heated to 180 ℃ in advance, keep it warm for 1.5 hours, and cool naturally ;

[0055] (3) Centrifuge the yellow turbid liquid obtained in step (2) (centrifugal speed 5000 r / m), wash the obtained yellow solid with ethanol, put it in an oven to dry, and obtain hollow cuprous oxide nanospheres.

[0056] The product obtained in this example was determined to be cubic cuprous oxide crystals through X-ray diffraction; scanning electron microscope (...

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Abstract

The invention relates to cuprous oxide nano hollow spheres and a synthetic method thereof. The synthetic method comprises the following steps of: (1) dissolving a cupric salt in an organic solvent, and controlling the copper ion concentration at 0.01-0.6mol / L; (2) transferring the solution obtained in the step (1) into a reaction vessel, sealing the reaction vessel, putting the reaction vessel into a reaction environment in which the temperature is 120-200 DEG C, performing thermal reaction for 0.5-8 hours, and cooling the reaction vessel naturally; (3) separating the solid obtained in the step (2), washing and drying to obtain the cuprous oxide nano hollow spheres. According to the synthetic method, the cuprous oxide nano hollow spheres are prepared through a one-pot hydrothermal synthesis under the condition that any surfactant is not added; the prepared nano spheres with unique hollow structures have excellent dye adsorption capacity and lithium ion battery performance.

Description

technical field [0001] The invention relates to a sub-nanometer copper oxide hollow sphere, a synthesis method and an application method thereof, and belongs to the field of advanced nanometer materials. technical background [0002] Two stable oxides of copper, cuprous oxide and copper oxide, are good p-type semiconductors, and have potential application prospects in the fields of photocatalytic water decomposition for hydrogen production, dye-sensitized solar cells, lithium-ion batteries, and gas sensors. . The hollow nanosphere structure has the characteristics of low density, high specific surface area, and strong adsorption capacity, and has important applications in many fields such as biology, chemistry, and materials. Especially in lithium-ion batteries, dye adsorption, gas sensors, etc. will have applications. [0003] So far, the research interests of domestic and foreign researchers on cuprous oxide are strengthening. There are many reports on the controlled ...

Claims

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Application Information

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IPC IPC(8): C01G3/02B82Y30/00B22F9/22H01M4/13
CPCY02E60/122Y02E60/10
Inventor 李昱陈代松王洪恩金俊黄绍专陈丽华邓兆阳晓宇苏宝连
Owner WUHAN UNIV OF TECH
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