Product Name
Name:Helical Multi-walled carbon nanotubes
Product Overview
Coiled Multi-Walled Carbon Nanotubes (CMWCNTs) are a kind of coiled multi-walled carbon nanotubes with special morphology. Their structure is characterized by the coiled coiled tube wall. Spiral multi-walled carbon nanotubes are formed by a plurality of graphite layers bent around a central axis and arranged spirally to form a continuous tubular structure. Each layer of graphite interacts with each other through van der Waals forces.
The appearance of spiral multi-walled carbon nanotubes shows a distinct spiral shape, which gives them unique physical and chemical properties. The preparation of spiral multi-walled carbon nanotubes usually involves complex chemical or physical processes, and chemical vapor deposition (CVD) is one of the most common methods for preparing spiral multi-walled carbon nanotubes. Under certain conditions, carbon source gas (such as methane, acetylene, etc.) is introduced into the reaction chamber, and metal catalysts (such as iron, cobalt, nickel, etc.) are used to decompose carbon source gas and deposit carbon nanotubes on the catalyst surface at high temperature. The morphology and structure of spiral multi-walled carbon nanotubes can be controlled by adjusting the catalyst type, concentration, reaction temperature and gas flow rate.
Technical Parameter
OD:00-200 nm
Length:-10 um
CNTs content:gt;90%
Helical CNTs content：＞60%
SSA:gt;30m2/g
Product Features
Mechanical properties: Spiral multi-walled carbon nanotubes have high strength and modulus, and can withstand greater stress and deformation without damage.
Electrical properties: Spiral multi-walled carbon nanotubes have good electrical conductivity, and their electrical properties depend on their diameter, helicity and the number of layers. They may exhibit metallic properties, semiconducting properties, or insulator properties.
Thermal properties: Spiral multi-walled carbon nanotubes have excellent thermal conductivity, which can transfer heat quickly and maintain low thermal resistance.
Chemical stability: Spiral multi-walled carbon nanotubes have high chemical stability and can maintain the stability of their structure and properties in a variety of environments.
Application Fields
Composite materials: Spiral multi-walled carbon nanotubes can be added to the composite as a reinforcing phase to improve the mechanical properties and thermal stability of the composite. They have potential application value in aerospace, automobile manufacturing and other fields.
Electronic devices: Spiral multi-walled carbon nanotubes can be used to construct electronic devices such as field-effect transistors and sensors. Their high conductivity and adjustable electrical properties give these devices excellent performance.
Catalyst support: The high specific surface area and excellent chemical stability of spiral multi-walled carbon nanotubes make them the ideal choice for catalyst support. They can support a variety of metal or non-metal catalysts to improve the activity and stability of the catalyst.
Gas adsorption and separation: Spiral multi-wall carbon nanotubes have strong adsorption capacity for some gases, and can be used to construct gas adsorption materials or gas separation membranes. They have potential application value in air purification, water treatment and other fields.
Related Information
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