Cuprous oxide nano microspheres in double-layered structure and preparation method thereof

A technology of cuprous oxide and nano-microspheres, applied in the direction of copper oxide/copper hydroxide, nanotechnology, nanotechnology, etc., can solve the problems of large diameter and small specific surface area of ​​cuprous oxide nanomaterials, and achieve regular surface morphology , large specific surface area and uniform diameter

Active Publication Date: 2015-03-25
STATE NUCLEAR ELECTRIC POWER PLANNING DESIGN & RES INST CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In the process of realizing the present invention, the inventors have found that there are at least the following problems in the prior art: the cuprous oxide nanomaterials prepared by the preparation method of the prior art have a large diameter, and the surface of the particles is relatively smooth, and the specific surface area is small

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  • Cuprous oxide nano microspheres in double-layered structure and preparation method thereof
  • Cuprous oxide nano microspheres in double-layered structure and preparation method thereof
  • Cuprous oxide nano microspheres in double-layered structure and preparation method thereof

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preparation example Construction

[0046] Another aspect of the present invention provides a method for preparing the double-layer structure nano-cuprous oxide of the first aspect of the present invention, comprising the following steps:

[0047] Step (1), dissolving the copper salt in water to obtain an aqueous copper salt solution; dissolving sodium oleate in ethanol to obtain an ethanol solution of sodium oleate;

[0048] Step (2), adding the aqueous copper salt solution and the ethanol solution of sodium oleate obtained in step (1) into a reaction vessel, stirring for 5-10 minutes, and then adding an aqueous solution of hydrazine hydrate dropwise to the reaction system;

[0049] Step (3), after the hydrazine hydrate aqueous solution is added dropwise, stirring and reacting at 20-30°C for 5-10 minutes;

[0050] Step (4), after the reaction, centrifuge the obtained reaction solution, remove the supernatant, add ethanol and perform ultrasonication, repeat 2-4 times; vacuum-dry the obtained precipitate at 30-35...

Embodiment 1

[0079] This embodiment provides a method for preparing cuprous oxide nanospheres with a double-layer structure.

[0080] Step (1), 2.5g copper acetate is dissolved in 50ml water, obtains copper acetate aqueous solution; 0.25g sodium oleate is dissolved in 50ml ethanol, obtains the ethanol solution of sodium oleate;

[0081] In step (2), add the aqueous copper acetate solution and the ethanol solution of sodium oleate obtained in step (1) into a three-necked flask and stir for 5 minutes; dilute 1ml of hydrazine hydrate solution with a mass fraction of 80% to 10ml and add it dropwise to the reaction system middle;

[0082] Step (3), after the aqueous solution of hydrazine hydrate is added dropwise, the reaction is stirred and reacted at 20°C for 10 minutes, and the stirring speed is 600rpm;

[0083] Step (4), after the reaction, centrifuge the obtained reaction solution, remove the supernatant, add 10ml of ethanol and sonicate for 10 minutes, repeat 3 times; vacuum dry the obta...

Embodiment 2

[0090] This embodiment provides a method for preparing cuprous oxide nanospheres with a double-layer structure.

[0091] Step (1), 1.0g copper acetate is dissolved in 50ml water, obtains copper acetate aqueous solution; 0.25g sodium oleate is dissolved in 50ml ethanol, obtains the ethanolic solution of sodium oleate;

[0092] In step (2), add the aqueous copper acetate solution and the ethanol solution of sodium oleate obtained in step (1) into a three-necked flask and stir for 5 minutes; dilute 1ml of hydrazine hydrate solution with a mass fraction of 80% to 10ml and add it dropwise to the reaction system middle;

[0093] Step (3), after the aqueous solution of hydrazine hydrate is added dropwise, the reaction is stirred and reacted at 20°C for 10 minutes, and the stirring speed is 600rpm;

[0094] Step (4), after the reaction, centrifuge the obtained reaction solution, remove the supernatant, add 10ml of ethanol and sonicate for 10 minutes, repeat 3 times; vacuum dry the ob...

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Abstract

The invention discloses cuprous oxide nano microspheres in a double-layered structure and a preparation method thereof, belonging to the field of inorganic nano synthetic materials. The preparation method comprises the following steps: (1) dissolving copper salt in water to obtain a copper salt aqueous solution; dissolving sodium oleate in ethanol to obtain an ethanol solution of sodium oleate; (2) adding the copper salt aqueous solution and the ethanol solution of sodium oleate obtained in the step (1) into the reaction container, and after stirring for 5-10 minutes, dropwise adding a hydrazine hydrate aqueous solution into a reaction system; (3) after dropwise adding the hydrazine hydrate aqueous solution, stirring to react for 5-10 minutes at 20-30 DEG C; and (4) after reaction, carrying out centrifugal separation on the obtained reaction liquid, removing supernate, adding ethanol for ultrasonic treatment, and repeating for 2-4 times; and drying the obtained precipitate at 30-35 DEG C in vacuum to obtain the cuprous oxide nano microspheres in the double-layered structure. The cuprous oxide nano microspheres prepared by the method disclosed by the invention are small in diameter and uniform in size. As the cuprous oxide nano microspheres have the double-layered structure, the cuprous oxide nano microspheres are large in specific surface area.

Description

technical field [0001] The invention relates to a cuprous oxide nanosphere with a double-layer structure and a preparation method thereof, belonging to the field of inorganic nanocomposite materials. Background technique [0002] Cuprous oxide has special optical, catalytic and photoelectric properties, and has become one of the hotspots in current material science research. Cuprous oxide is a P-type semiconductor, which can be used in solar energy conversion, microelectronics, magnetic storage, catalysis, gas sensing and other fields. At the same time, cuprous oxide is also the negative electrode material of traditional lithium batteries. [0003] At present, the preparation methods of cuprous oxide nanoparticles are mostly hydrothermal method. For example, the patent application number 201210006997.2 uses hydrothermal method to prepare octahedral and spherical nanoparticles; Solid spherical nanoparticles were prepared by hydrothermal method. The diameter of the particle...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G3/02B82Y30/00
CPCC01G3/02C01P2002/72C01P2002/85C01P2004/03C01P2004/32C01P2004/62C01P2006/12
Inventor 王可为葛小玲徐秀萍崔映红
Owner STATE NUCLEAR ELECTRIC POWER PLANNING DESIGN & RES INST CO LTD
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