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Simple and convenient preparation method of Cu-doped Co9S8 nanotube array for supercapacitor

A nanotube array and supercapacitor technology, which is applied in the field of preparation of Cu-doped Co9S8 nanotube arrays, can solve problems such as unreported research on nanotube arrays, and achieve the effects of easy control, efficient charge and discharge, and simple synthesis process.

Pending Publication Date: 2019-03-01
ZHEJIANG NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Currently, regarding Cu-doped Co 9 S 8 The use of nanotube arrays as electrodes for supercapacitors has not been reported yet

Method used

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  • Simple and convenient preparation method of Cu-doped Co9S8 nanotube array for supercapacitor
  • Simple and convenient preparation method of Cu-doped Co9S8 nanotube array for supercapacitor
  • Simple and convenient preparation method of Cu-doped Co9S8 nanotube array for supercapacitor

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Experimental program
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Effect test

Embodiment 1

[0020] A Cu-doped Co for supercapacitor electrode material 9 S 8 Nanotube array preparation method, the preparation of Cu-doped Co 9 S 8 The method for arraying nanotubes comprises the steps of:

[0021] (1) Weigh 727mg of cobalt nitrate (Co(NO 3 ) 2 ·6H 2 O), 60mg of copper nitrate (Cu(NO 3 ) 2 ·3H 2 O), 750mg of urea (CO(NH 2 ) 2 ) was dissolved in 40ml of water, ultrasonically dispersed to form a homogeneous solution, and stirred for 30 minutes, the above-mentioned mixed solution was put into a 40mL reactor, and a piece of treated foam nickel (2cm×4cm) was added to the reactor. After reacting for 12 hours, open the reaction vessel after naturally cooling to room temperature, wash the foamed nickel with deionized water and absolute ethanol, and dry the foamed nickel to obtain Cu-doped Co(CO) grown on the foamed nickel substrate. 3 ) 0.5 (OH) nanorod arrays.

[0022] (2) Dissolve 30mg of trimesic acid in 10mL of water, 10mL of ethanol and 10mL of N,N-dimethylform...

Embodiment 2

[0029] (1) Weigh 727mg of cobalt nitrate (Co(NO 3 ) 2 ·6H 2 O), 750mg of urea (CO(NH 2 ) 2 ) was dissolved in 40ml of water, ultrasonically dispersed to form a homogeneous solution, and stirred for 30 minutes, the above-mentioned mixed solution was put into a 40mL reactor, and a piece of treated foam nickel (2cm×4cm) was added to the reactor. After reacting for 12 hours, open the reactor after cooling to room temperature naturally, wash the nickel foam with deionized water and absolute ethanol, and dry the nickel foam to obtain the Co(CO) grown on the nickel foam substrate. 3 ) 0.5 (OH) nanorod arrays.

[0030] (2) Dissolve 30mg of trimesic acid in 10mL of water, 10mL of ethanol and 10mL of N,N-dimethylformamide, and transfer it to the reaction kettle after ultrasonic dispersion, then add the Co(CO 3 ) 0.5 (OH) nanorod arrays, react at 150 ° C for 12 hours, open the reaction vessel after cooling to room temperature naturally, wash the foamed nickel with deionized water ...

Embodiment 3

[0035] (1) Weigh 727mg of cobalt nitrate (Co(NO 3 ) 2 ·6H 2 O), 60mg of copper nitrate (Cu(NO 3 ) 2 ·3H 2 O), 750mg of urea (CO(NH 2 ) 2 ) was dissolved in 40ml of water, ultrasonically dispersed to form a homogeneous solution, and stirred for 30 minutes, the above-mentioned mixed solution was put into a 40mL reactor, and a piece of treated foam nickel (2cm×4cm) was added to the reactor. After reacting for 12 hours, open the reaction vessel after naturally cooling to room temperature, wash the foamed nickel with deionized water and absolute ethanol, and dry the foamed nickel to obtain Cu-doped Co(CO) grown on the foamed nickel substrate. 3 ) 0.5 (OH) nanorod arrays.

[0036] (2) Take 0.18g of thioacetamide (TAA) and dissolve it in 40mL of ethanol, transfer it to the reaction kettle after ultrasonic dispersion, and then add the Cu-doped Co(CO 3 ) 0.5 (OH) nanorod array, react at 120°C for 4 hours, open the reactor after naturally cooling to room temperature, wash the ...

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Abstract

The invention relates to a preparation method of a Cu-doped Co9S8 nanotube array for a supercapacitor electrode material. The method for preparing the Cu-doped Co9S8 nanotube array on a foamed nickelsubstrate comprises the steps of adopting cobalt nitrate (Co(NO3)2), copper nitrate (Cu(NO3)2) and urea (CO(NH2)2) as reaction raw materials, taking trimesic acid as a ligand, taking thioacetamide (TAA) as a sulfur source, and preparing the Cu-doped Co9S8 nanotube array through a solvothermal method. The diameter range of the prepared nanotube structure ranges from about 100 nm to 150 nm. The Cu-doped Co9S8 nanotube array preparation method has the advantages of high repeatability, simple synthesis process and low cost; and meanwhile, when the Cu-doped Co9S8 nanotube array is used as the supercapacitor electrode material, relatively specific capacity can be provided.

Description

technical field [0001] The invention belongs to the field of transition metal sulfide preparation technology and the application field of supercapacitor electrode materials, in particular to Cu-doped Co 9 S 8 Preparation method and application of nanotube array. Background technique [0002] Cobalt sulfide and copper sulfide are typical transition metal sulfides. Due to their excellent electrical conductivity, high theoretical specific capacity, good thermal stability, and environmental friendliness, they are considered to be a new generation of materials with potential for development and application. Because the nano-array material is grown directly on the conductive substrate, it can satisfy the rapid conduction of electrons, and there are many gaps between the vertically arranged nano-structures, which can greatly increase the specific surface area of ​​the material, and also constitute electrolyte ions. The transmission channel accelerates the mass transfer process at...

Claims

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Application Information

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IPC IPC(8): H01G11/30B82Y40/00
CPCH01G11/30B82Y40/00Y02E60/13
Inventor 胡勇陆雯沈峻岭
Owner ZHEJIANG NORMAL UNIVERSITY
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