High Purified Single-walled carbon nanotubes

Product Name

Name:High Purified Single-walled carbon nanotubes

Product Overview

Carbon nanotubes, also known as bastube, is a one-dimensional quantum material with special structure, its radial size of nanometer, axial size of micron, both ends of the tube are basically sealed. Carbon nanotubes are mainly composed of hexagonal layers of coaxial circular tubes. The fixed distance between the layers is about 0.34 nm, and the diameter is generally 2~20 nm. And according to the different orientations of the carbon hexagon along the axis, it can be divided into zigzag, armchair and spiral types. The spiral carbon nanotubes are chirality, while the zigzag and armchair carbon nanotubes have no chirality. Single-walled carbon nanotubes (SWCNT or SWNT) are all made of carbon atoms. The geometric structure can be regarded as composed of a single layer of graphene. The structure determines the properties, so single-walled carbon nanotubes have excellent electronic, mechanical, mechanical and other properties. At the same time, according to coiled structure, it has armchair, zigzag and chiral; according to electronic structure, it has semiconductor and metallic (including quasi-metallic and metallic).

Technical Parameter

Purity>99at.%(EDS)

Diameter:1-2nm(TEM)

Length:10-30μm(SEM) Special Surface Area:600~700m2/g(BET)

Appearance:Black flocculent Making method:Floating catalyst

Product Features

1)Preparation by floating catalysis: Floating catalysis can achieve good tunability of growth parameters, which allows it to ideally control the structure of carbon nanotubes, including wall number, diameter, length, beam size, and even the electrical conductivity and chirality type. 2)High purity: when preparing the single-wall carbon nanotubes by floating catalytic method, the catalytic substance particles in the product are less, the tube bundle surface is relatively smooth, the amorphous carbon content is less, and the purity is higher. 3)High aspect ratio: it has a high length-to-diameter ratio, which gives it unprecedented flexibility; the high aspect ratio also allows it to form three-dimensional conductive networks at very low addition amounts.

Application Fields

1)Nanoelectronic devices: single-walled carbon tubes have excellent electrical conductivity and semi-conductive characteristics, and can be used to manufacture nanoscale electronic devices, such as transistors, sensors, etc.; 2)Composite enhancer: Due to its extremely high strength and toughness, single-walled carbon tubes can be used as an enhancer of composite materials to improve the mechanical properties of materials; 3)Energy storage medium: it can be used in lithium-ion batteries, supercapacitors and other energy storage devices to improve energy storage efficiency and cycle life; 4)Sensor: using its high sensitivity response to gas, chemical substances, can make a high sensitivity sensor; 5)Biological nanomaterials: In the field of biomedicine, single-walled carbon tubes can be used for drug delivery, gene therapy, etc.

Related Information

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