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Three-dimensional graphene, polyaniline and cobaltosic oxide composite material and preparation method and application

A technology of tricobalt tetroxide and composite materials, which is applied in the directions of cobalt oxide/cobalt hydroxide, hybrid/electric double layer capacitor manufacturing, hybrid capacitor electrodes, etc. , the effect of increasing the specific surface area and improving the electrochemical performance

Inactive Publication Date: 2015-10-21
SHANGHAI INSTITUTE OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, its electrochemical performance is far from the practical application level.

Method used

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  • Three-dimensional graphene, polyaniline and cobaltosic oxide composite material and preparation method and application
  • Three-dimensional graphene, polyaniline and cobaltosic oxide composite material and preparation method and application
  • Three-dimensional graphene, polyaniline and cobaltosic oxide composite material and preparation method and application

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Effect test

Embodiment 1

[0047] A three-dimensional graphene / polyaniline / cobalt tetroxide composite material, composed of graphene, polyaniline and cobalt tetroxide, has a three-dimensional micron or nanometer porous structure, wherein cobalt tetroxide grows on the nanofibers of polyaniline to form polyaniline / cobalt tetroxide nanoparticles, The polyaniline / cobalt trioxide nanoparticles are evenly distributed on the graphene surface.

[0048] The above-mentioned preparation method of a kind of three-dimensional graphene / polyaniline / cobalt tetroxide composite material specifically comprises the following steps:

[0049] (1) Add 1 mg of graphene oxide to 1 ml of dispersant 1, and control the ultrasonic power to 300-400w at room temperature for 30-90 minutes to disperse evenly to obtain a graphene oxide dispersion;

[0050] Described dispersant 1 is deionized water, and its consumption is by graphene oxide: dispersant 1 is 1mg: 1mL;

[0051] (2) Add 60ml of aniline monomer into 1mg of dispersant 2, and ...

Embodiment 2

[0068] A three-dimensional graphene / polyaniline / cobalt tetroxide composite material, composed of graphene, polyaniline and cobalt tetroxide, has a three-dimensional micron or nanometer porous structure, wherein cobalt tetroxide grows on the nanofibers of polyaniline to form polyaniline / cobalt tetroxide nanoparticles, The polyaniline / cobalt trioxide nanoparticles are evenly distributed on the graphene surface.

[0069] The above-mentioned preparation method of a kind of three-dimensional graphene / polyaniline / cobalt tetroxide composite material specifically comprises the following steps:

[0070] (1) Add 1mg of graphene oxide into 3ml of dispersant 1, control the ultrasonic power at room temperature to 300-400w for 30-90min to disperse evenly, and obtain the graphene oxide dispersion;

[0071] Described dispersant 1 is deionized water, and its consumption is by graphene oxide: dispersant 1 is 1mg: 3mL;

[0072] (2) Add 30ml of aniline monomer to 1mg of dispersant 2, control the...

Embodiment 3

[0088] A three-dimensional graphene / polyaniline / cobalt tetroxide composite material, composed of graphene, polyaniline and cobalt tetroxide, has a three-dimensional micron or nanometer porous structure, wherein cobalt tetroxide grows on the nanofibers of polyaniline to form polyaniline / cobalt tetroxide nanoparticles, The polyaniline / cobalt trioxide nanoparticles are evenly distributed on the graphene surface.

[0089] The above-mentioned preparation method of a kind of three-dimensional graphene / polyaniline / cobalt tetroxide composite material specifically comprises the following steps:

[0090] (1) Add 1 mg of graphene oxide to 5 ml of dispersant 1, and control the ultrasonic power to 300-400w at room temperature for 30-90 minutes to disperse evenly to obtain a graphene oxide dispersion;

[0091] Described dispersant 1 is deionized water, and its consumption is by graphene oxide: dispersant 1 is 1mg: 5mL;

[0092] (2) Add 50ml of aniline monomer into 1mg of dispersant 2, and ...

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Abstract

The invention discloses a three-dimensional graphene, polyaniline and cobaltosic oxide composite material and preparation method. The graphene, polyaniline and cobaltosic oxide composite material is of a three-dimensional micron or nano porous structure and is composed of the graphene, polyaniline nano fibers and the cobaltosic oxide, wherein the cobaltosic oxide grows on the polyaniline nano fibers to form polyaniline and cobaltosic oxide nanoparticles with the particle size 10-50 nm, and the polyaniline and cobaltosic oxide nanoparticles are evenly distributed on the graphene surface; the preparation method of the three-dimensional graphene, polyaniline and cobaltosic oxide composite material comprises the steps that in-suit polymerization is conducted on graphene oxide and aniline to obtain a graphene oxide and polyaniline crude product, bivalent cobalt salt and the graphene oxide are added, and washing and freeze-drying are sequentially conducted on the obtained product under the hydrothermal condition to obtain the three-dimensional graphene, polyaniline and cobaltosic oxide composite material which has the specific capacity capable of reaching 1021 F / g to the maximum and excellent circulation and rate performance and serves as a supercapacitor. The preparation method is simple, low in cost and environmentally friendly.

Description

technical field [0001] The invention relates to a three-dimensional graphene / polyaniline / cobalt trioxide composite material, a preparation method and an application in supercapacitor electrode materials, belonging to the field of energy storage material preparation. Background technique [0002] At present, the application of graphene-based composite materials in the field of energy storage and energy conversion has become a research hotspot and has shown good application prospects. Supercapacitors have the advantages of high power density, long cycle life, and fast charge and discharge, making them a promising energy storage device. According to different energy storage mechanisms, supercapacitors can be divided into electric double layer capacitors and pseudocapacitors. Electric double layer capacitor materials are generally based on carbon materials, which have high power density but relatively low capacitance. However, conductive polymers and transition metal oxides ar...

Claims

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Application Information

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IPC IPC(8): C08L79/02C08K9/04C08K3/04C08K3/22C08G73/02C01G51/04C08J3/075C08J9/28H01G11/24H01G11/30H01G11/36H01G11/46H01G11/48H01G11/86
CPCY02E60/13C08K9/04C01G51/04C08G73/0266C08J3/075C08J9/28C08J2379/02C08K3/04C08K3/22C08K2003/2289C08K2201/011C08L2203/12C08L2203/20H01G11/24H01G11/30H01G11/36H01G11/46H01G11/48H01G11/86
Inventor 蔺华林黄奇熊丽萍何忠义周嘉伟刘凡王金钻蒋建忠王驰王鑫晶艾亚妮储磊马鹏杭智军常兴刘益林李飞
Owner SHANGHAI INSTITUTE OF TECHNOLOGY
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