Electrochemical modification treatment method of carbon nanotubes

A carbon nanotube and processing method technology, applied in chemical instruments and methods, inorganic pigment processing, fibrous fillers, etc., can solve problems such as reducing the catalytic activity of carbon tubes, and achieve good electron transfer rate, good hydrophilicity, and operation. simple effect
CN101559940BInactive Publication Date: 2012-02-01SOUTH CHINA UNIV OF TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SOUTH CHINA UNIV OF TECH
Publication Date
2012-02-01
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses an electrochemical modification treatment method for carbon nanotubes, which belongs to the field of modification of nano functional materials. The invention uses carbon nanotubes as electrode materials in an electrolyte solution, and uses various electrochemical methods to modify the carbon nanotube electrodes by applying voltage or current treatment through electrochemical instruments. After the carbon nanotubes are modified by the method of the invention, the specific surface area of ​​the carbon nanotubes is significantly increased, the hydrophilicity is obviously enhanced, and the capacitance properties such as charge capacity, charge and discharge current density, and cycle times are also significantly improved. In addition, the modified carbon nanotubes still maintain the original unique and efficient electron transfer characteristics. The carbon nanotubes modified by the method of the invention can be used in the field of nano functional materials such as high-efficiency electrocatalytic materials, supercapacitor materials and carriers of novel surface functionalized composite materials.
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Description

technical field

[0001] The invention belongs to the field of modification of nanometer functional materials, and in particular relates to an electrochemical modification treatment method of carbon nanotubes. Background technique

[0002] Since Iijima reported the discovery of carbon nanotubes in 1991, carbon nanotubes have been a research hotspot in the field of nanofunctional materials. Nanotubes are seamless, hollow tubes rolled into graphene sheets formed by carbon atoms, and are generally divided into single-walled carbon nanotubes (SWNTs) and multi-walled carbon nanotubes (MWNTs). Carbon nanotubes have broad application prospects in many fields because of their unique structure, electrical, optical, magnetic properties and mechanical properties. However, because carbon nanotubes are insoluble in water and common organic solvents, their application is greatly limited, so the modification of carbon nanotubes to improve their solubility has aroused great interest of resea...

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
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