banner

Products

Home Carbon nanotubes Double-walled Carbon Nanotubes (DWCNTs)

Buy DWNTs Double Walled Carbon Nanotubes for Gas Sensor

Categories

New products

  • 99.99% beta sic nano powders

    99.99% high purity beta sic nano powders Our 4N nano β-SiC (99.99% purity) is precision-synthesized via CVD, delivering ultra-fine particle size with exceptional sintering activity for high-density ceramic components. It thrives in the most demanding semiconductor environments — from CMP chucks and lithography stages to plasma etch focus rings and chamber liners. Its chemical inertness and minimal metal impurity outgassing maximize chip yield where it matters most. Trusted by leading fabs and equipment makers worldwide. more

  • Transparent SiO₂ aqueous dispersion

    Monodisperse spherical Nano SiO₂ aqueous dispersion/colloid This transparent SiO₂ aqueous dispersion is synthesized via patented sol-gel technology, featuring optical excellence visible light transmittance and shelf life >18 months under ambient storage. It is widely used in electronics as low-k dielectric materials, in biomedicine as drug carriers, and in optics for anti-reflection coatings. more

  • Nano Titanium Suboxide Ti₄O₇ Powder

    Magnéli Phase Nano Titanium suboxide Ti₄O₇ Powder Magnéli phase Nano titanium suboxide (Ti₄O₇) is an advanced functional material with a unique crystal structure, appearing as a blue-black powder with a precisely controlled particle size of 200–300 nm and a purity of up to 99.9%. As an important member of the titanium oxide family, Ti₄O₇ combines excellent electrical conductivity, chemical stability, and catalytic activity, making it an ideal choice for new energy, environmental protection, and electronics applications. more

  • Boron Nitride Nanotubes

    Boron Nitride Nanotubes(BNNTs): High Thermal Conductivity Heat Dissipation Fillers BNNTs share the tubular structure of carbon nanotubes but deliver fundamentally different properties: electrical insulation, superior thermal stability (up to 900°C in air), and high thermal conductivity. With a wide bandgap of ~5.5 eV, they offer consistent, predictable performance where CNTs fall short. more

  • Phase-Smart VO₂ Nanoparticles

    Phase-Smart VO₂ Nanoparticles: Intelligent Thermal Response, Engineered to Order From Thermochromic Color Change material to Intelligent Temperature Control material: The Performance Revolution and Application Blueprint of Vanadium Dioxide and Tungsten-Doped VO2 more

  • Precision Ceramic 3D Printing Solutions

    Precision Ceramic 3D Printing Solutions​ turns impossible structures into reality Precision Ceramic 3D Printing Solutions – Redefining the boundaries of ceramic manufacturing, from dental restorations to aerospace-grade high-temperature components.Precision ceramic 3D printing turns impossible structures into reality. more

  • nickel nanowires NiNWs

    New conductive material nickel nanowires NiNWs Hongwu Nickel nanowires have a wide range of potential applications in electronic materials, catalysis, polymers, magnetic storage ultra-high density recording materials, sensors and self-lubricating materials. more

  • Antibacterial Nano Silver Colloid

    Transparent Colloidal Ag Antibacterial Nano Silver Colloid Ag (Antibacterial Nano Silver Colloid) has been well known antibacterial, antiviral and antifungal properties are enhanced by small particle size and large surface area. more

  • Nano silica particles used in epoxy resin, superhydrophobic coating nano silica powder

    Nano silica particles used in epoxy resin, superhydrophobic coating nano silica powder Nano silica particles, 20-30nm, 99.8% purity, widely used in exposy resin and superhydrophobic coating. more

Latest news

Some nanomaterials for Thermochromic Application Some nanomaterials for Thermochromic Application

Thermochromism refers to the phenomenon where a material undergoes color changes under temperature changes. This change is usually caused by changes in the electronic or molecular structure of the material. Its application principle mainly involves t...

Buy DWNTs Double Walled Carbon Nanotubes for Gas Sensor

Double walled carbon nanotubes(DWCNT) is widely used as gas sensor for its good properties to achieve high sensitivity and selectivity.

  • product origin:

    Xuzhoum Jiangsu, China
  • shipping port:

    Guangzhou, China
  • color:

    black powder
  • lead time:

    depends on
  • payment:

    100% advance payment
pPoduct Details

 DWNTs Double Walled Carbon Nanotubes Used in Gas Sensor


Spec: diameter: 2-5nm, length: short tube 1-2um and long tube 5-20um, purity: >91%


Materials with super strength, super toughness and super fatigue resistance are in great demand in many fields such as aerospace, military equipment, body armor, large bridges, sports equipment, artificial muscles and so on. Carbon nanotubes are typical one-dimensional nanomaterials, and they are also known materials with the highest mechanical strength and toughness. Their macroscopic strength and toughness are both higher than those of carbon fiber and aramid fiber which are widely used at present.


Apart from strength and toughness enhancement, DWCNT also can be applied for gas sensor.


Double walled carbon nanotubes used in gas sensor:

1. Carbon nanotube gas sensor has high sensitivity, fast response, small size, low power consumption and lower working temperature and many other features.

2. Carbon nanotubes are one of the development of solid-state sensor technology ideal nanomaterials huge aspect ratio and specific surface area of the carbon nanotube sensor can become highly sensitive material layer and the efficient conduction channel.

3. Carbon nanotubes easily integrated into micro-electronic devices, it is possible to produce a sensor having a plurality of small sensor arrays.

4. Carbon nanotube gas sensor can operate at room temperature; no heating means for reducing the volume of the sensor, the sensor reduces the power consumption, so that the core member can be increased longevity, while also extending the battery life of the sensor.

5. Carbon nanotube gas sensor has been able to industry, environmental protection, physical security, medical testing, and defense and military fields in a variety of important environmental gas analysis.

A free consultation

Email us with any questions or inquiries or use our contact data. We would be happy to answer your questions.

Related Products
DWCNT
DWCNTs Double Walled Carbon Nanotubes

DWCNT, short for Double Walled Carbon Nanotubes, have short tube 1-2um and long tube 5-20um, with diameter 2-5nm. DWCNTs also have good properties of electromagnetism, adsorption, catalytic, mechanical, etc.. And they're used in various fields. DWCNTs Dispersion and functionalized types can be customized.

DWNT
DWNTs Double Walled Carbon Nanotubes Used in Gas Sensor

Double walled carbon nanotubes(DWCNT) is widely used as gas sensor for its good properties to achieve high sensitivity and selectivity.

Electric Conductivity MWCNTs Multi-Walled Carbon Nanotubes Price
Electric Conductivity MWCNTs Multi-Walled Carbon Nanotubes Price

MWCNTs Multi-Walled Carbon Nanotubes Price have excellent electric conductivity and mechanical strength

Energy Storage Materials DWCNTs Double-walled Carbon Nanotubes
Energy Storage Materials DWCNTs Double-walled Carbon Nanotubes

DWCNTs Double-walled Carbon Nanotubes have excellent field emission performance, light in weight.

Carbon Nanotubes for high Strength Fibers
CNTs Carbon Nanotubes Used as high Strength Fibers

HONGWU Carbon nanotubes includes SWCNT,DWCNT,MWCNT,The composite of carbon nanotubes with fiber materials can significantly improve the strength and properties of the materials. Due to the excellent mechanical properties and high electrical conductivity of carbon nanotubes, their introduction into high-strength fibers can effectively enhance the tensile strength and stiffness of the fibers.

One-dimensional nanomaterials DWCNTs,semiconductor film used doble walled carbon nanotubes
One-dimensional nanomaterials DWCNTs,semiconductor film used doble walled carbon nanotubes

Dwcnts, 2-5nm diameter, 1-2um or 5-20um length, widely used in semiconductor films.

Amino modified CNT
Amino modified Multi-walled Carbon Nanotubes,MWNT-NH2

Multi-walled carbon nanotubes, amino-modified(NH2 MWCNT), purity 99%, with availabe diameter range of 10-100nm and short(1-2um)/long tubes(5-20um).

Titanate Nanotubes Used in Lithium-ion Battery Anode Material
Titanate Nanotubes Used in Lithium-ion Battery Anode Material

Titanate nanotubes were added to the lithium-ion battery anode material, it showed great ability to embed lithium, high discharge, charging performance and excellent cycle stability.

Wear-resisting ceramic guide pulley suitable for wire, cable, precise pipe industry, shinning and we
Wear-resisting ceramic guide pulley suitable for wire, cable, precise pipe industry, shinning and we

Zirconia ceramics guide pulley has higher accuracy, wear resistance and longer lifespan than other material pulley

nano ruthenium oxide for exothermic material
Nano ruthenium oxide RuO2 for exothermic material

Experiments showed that mixing small sized RuO2 particles with the larger size one can increase heat conduction by increasing filling rate.yes, we can produce ruthenium oxide nanoparticles with size from 20nm to 10um customized, high purity 99.99%

Superfine Boron Carbide Powder Used in Ceramic 500nm B4C Particle
Superfine Boron Carbide Powder Used in Ceramic 500nm B4C Particle

Hongwu International Group Ltd supply 500nm and 1-3um with 99%purity. B4C superfine powders for ceramic have good properties and used in various fields.

99.99% beta sic nano powders
99.99% high purity beta sic nano powders

Our 4N nano β-SiC (99.99% purity) is precision-synthesized via CVD, delivering ultra-fine particle size with exceptional sintering activity for high-density ceramic components. It thrives in the most demanding semiconductor environments — from CMP chucks and lithography stages to plasma etch focus rings and chamber liners. Its chemical inertness and minimal metal impurity outgassing maximize chip yield where it matters most. Trusted by leading fabs and equipment makers worldwide.

Copyright © 2010-2026 Hongwu International Group Ltd All Rights Reserved.

The professional team to service !

Chat now

Live chat

    Email us with any questions or inquiries or use our contact data. We would be happy to answer your questions.