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Multi-hole nanometer copper oxide composite material, method for preparing same, supercapacitor electrodes and supercapacitor

A nano-copper oxide and composite material technology, which is applied in the field of nano-materials, can solve the problems of difficult preparation of supercapacitor electrodes, difficult to meet application requirements, poor conductivity, etc., and achieve long charge-discharge cycle life, good crystal shape, and small attenuation effects.

Inactive Publication Date: 2014-02-12
ANHUI NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because various single-electrode materials have their own shortcomings, such as poor conductivity, small capacity, and difficulty in preparing supercapacitor electrodes, it is difficult to meet higher application requirements.

Method used

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  • Multi-hole nanometer copper oxide composite material, method for preparing same, supercapacitor electrodes and supercapacitor
  • Multi-hole nanometer copper oxide composite material, method for preparing same, supercapacitor electrodes and supercapacitor
  • Multi-hole nanometer copper oxide composite material, method for preparing same, supercapacitor electrodes and supercapacitor

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Effect test

Embodiment 1

[0034] A porous nano-copper oxide composite material is composed of porous nano-copper oxide grown on a copper substrate, and the porous nano-copper oxide is tiled on the copper substrate in a three-dimensional network.

[0035] A preparation method of a porous nano-copper oxide composite material, the steps comprising:

[0036] a. Put the copper sheet into acetone, ethanol, dilute hydrochloric acid, and water in sequence, and perform ultrasonic cleaning; the ultrasonic cleaning time in acetone, ethanol, dilute hydrochloric acid, and water is 12, 15, 12, and 10 min respectively, and the concentration of the dilute hydrochloric acid is 3mol / L;

[0037] b. Add 20mL of 0.005mol / L potassium permanganate solution into the reaction kettle, and then 2 , the copper piece with a length of 4cm is immersed in potassium permanganate solution, tighten the lid of the reaction kettle, react at 100°C for 4 hours, cool to room temperature, take out the copper piece after reaction, clean it w...

Embodiment 2

[0044] A porous nano-copper oxide composite material is composed of porous nano-copper oxide grown on a copper substrate, and the porous nano-copper oxide is tiled on the copper substrate in a three-dimensional network.

[0045] A preparation method of a porous nano-copper oxide composite material, the steps comprising:

[0046] a. Put the copper sheet into acetone, ethanol, dilute hydrochloric acid, and water successively, and perform ultrasonic cleaning; the ultrasonic cleaning time in acetone, ethanol, dilute hydrochloric acid, and water is 15, 10, 10, and 15 min respectively, and the concentration of the dilute hydrochloric acid is 5 mol / L;

[0047] b. Add 20mL of 0.001mol / L potassium permanganate solution into the reaction kettle, and then 2, immerse the copper piece with a length of 4cm in the potassium permanganate solution, tighten the lid of the reaction kettle, react at 150°C for 8 hours, cool to room temperature, take out the copper piece after reaction, clean it ...

Embodiment 3

[0051] A porous copper oxide nanocomposite material consists of porous copper oxide nanomaterials grown on a copper substrate.

[0052] A method for preparing a porous copper oxide nanocomposite material, the steps comprising:

[0053] a. Put the copper sheet into acetone, ethanol, dilute hydrochloric acid, and water in turn, and perform ultrasonic cleaning; the ultrasonic cleaning time in acetone, ethanol, dilute hydrochloric acid, and water is 15, 10, 15, and 15 min respectively, and the concentration of the dilute hydrochloric acid is 4mol / L;

[0054] b. Add 20mL of 0.01mol / L potassium permanganate solution into the reaction kettle, and then make the 2 , immerse the copper piece with a length of 4cm in the potassium permanganate solution, tighten the lid of the reaction kettle, react at 50°C for 2 hours, cool to room temperature, take out the copper piece after reaction, clean it with distilled water and absolute ethanol, and dry it at room temperature. Porous copper oxi...

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Abstract

The invention relates to a multi-hole nanometer copper oxide composite material, a method for preparing the multi-hole nanometer copper oxide composite material, supercapacitor electrodes and a supercapacitor. Multi-hole nanometer copper oxide materials directly grow on a copper substrate according to a hydrothermal method to acquire the multi-hole nanometer copper oxide composite material capable of being directly used for making the supercapacitor electrodes. Good conductivity of the metal copper substrate is combined with the superhigh capacitance performance of the nano copper oxide materials to improve the specific capacity of the supercapacitor and prolong the cycle life of the supercapacitor.

Description

technical field [0001] The invention belongs to the technical field of nanometer materials, and in particular relates to a porous nanometer copper oxide composite material and a preparation method thereof, a supercapacitor electrode and a supercapacitor. Background technique [0002] With the continuous application of supercapacitors in the fields of mobile communication, information technology, aerospace and national defense technology and its unique characteristics of large capacity, high current, fast charge and discharge, and high cycle life, it has been widely favored by the world, causing many New supercapacitor electrode materials have been discovered and applied one after another. At present, commonly used supercapacitor electrode materials include: carbon material electrode materials, conductive polymer electrode materials, metal oxide electrode materials, etc. Because various single-electrode materials have their own shortcomings, such as poor conductivity, small ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01G11/26H01G11/46
CPCY02E60/13
Inventor 张小俊南红红马文勤
Owner ANHUI NORMAL UNIV
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