Method for preparing polyaniline grafted reduced graphene oxide/multi-walled carbon nanotube composite material which can be used for electrochemical energy storage
A technology of multi-wall carbon nanotubes and composite materials, which is applied in the field of preparation of polyaniline grafted reduced graphene oxide/multi-wall carbon nanotube composite materials, can solve the problems of easy agglomeration of graphene and limited capacitance performance, and achieve the goal of preparation The effect of simple method, high specific capacitance and mild reaction conditions
Active Publication Date: 2019-09-27
CHANGZHOU UNIV
View PDF16 Cites 2 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0004] Graphene has always been a research hotspot because of its good electrical conductivity, thermal stability and mechanical properties, but the disadvantage of easy agglomeration of graphene limits its capacitive performance.
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0019] A method for preparing a polyaniline grafted reduced graphene oxide / multi-walled carbon nanotube composite material that can be used for electrochemical energy storage, comprising the following steps:
[0020] (1) Preparation of aniline-modified reduced graphene oxide / multi-walled carbon nanotubes: Weigh 105 mg of graphene oxide and 45 mg of multi-walled carbon nanotubes, disperse them in 150 mL of deionized water and sonicate for 3 h, mix 1.5 mL of aniline and 0.9 mL of Ammonia water was added to the above-mentioned mixed dispersion containing graphene oxide and multi-walled carbon nanotubes and stirred at 95°C for 6h, then 2.64g of ascorbic acid was added to the above mixed dispersion and stirred at 90°C for 2h, and the resultant Washing with ethanol and deionized water, filtering, and drying at 60°C for 24h to obtain aniline-modified reduced graphene oxide / multi-walled carbon nanotubes;
[0021] (2) Polyaniline grafted reduced graphene oxide / multi-walled carbon nanot...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
| Property | Measurement | Unit |
|---|---|---|
| Specific capacitance | aaaaa | aaaaa |
| Quality | aaaaa | aaaaa |
Login to View More
Abstract
The invention relates to a method for preparing a polyaniline grafted reduced graphene oxide / multi-walled carbon nanotube composite material which can be used for electrochemical energy storage. The method comprises the following steps of preparation of aniline-modified reduced graphene oxide / multi-walled carbon nanotubes, preparation of polyaniline grafted reduced graphene oxide / multi-walled carbon nanotubes, preparation of polyaniline grafted reduced graphene oxide / multi-walled carbon nanotube modified electrodes, and a constant-current charging-discharging test. The method for preparing the polyaniline grafted reduced graphene oxide / multi-walled carbon nanotube composite material is simple, has a mild reaction condition and has high specific capacitance when used for supercapacitor electrode materials.
Description
technical field [0001] The invention relates to a method for preparing a polyaniline grafted reduced graphene oxide / multi-walled carbon nanotube composite material that can be used for electrochemical energy storage, and belongs to the fields of material synthesis and electrochemical research. [0002] technical background [0003] The rapid and massive consumption of fossil fuels has made environmental pollution increasingly serious. This is one of the biggest problems facing our modern society, and thus, there is an urgent need to develop environmentally friendly new energy storage materials. In various power supply equipment, supercapacitors have received great attention because of their excellent performances such as high power, long cycle life, and fast charge and discharge capabilities. Electrochemical capacitors, also known as supercapacitors, have attracted great attention over the past few decades due to their high power density, fast charge-discharge characteristic...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More IPC IPC(8): H01G11/30H01G11/36H01G11/48H01G11/86
CPCH01G11/30H01G11/36H01G11/48H01G11/86Y02E60/13
Inventor 孔泳李蕊君吴大同谭文胜
Owner CHANGZHOU UNIV