SKU: 77966220327

Double-wall carbon nanotubes

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Description

Double-wall carbon nanotubesProduct Name NameDouble wall carbon nanotubes Product Overview Double walled carbon nanotubes (DWNTs) can be seen as a nano tube structure composed of two coaxial graphite sheets coiled together, with a layer spacing of about 0. 34nm, a diameter generally between 2 4nm, and a length of several micrometers. Performance characteristics: It has good mechanical properties, such as high strength and high modulus; Has good electrical properties, such as

Product Name

Name:Double-wall carbon nanotubes


Product Overview

 

 

 

Double walled carbon nanotubes (DWNTs) can be seen as a nano tube structure composed of two coaxial graphite sheets coiled together, with a layer spacing of about 0.34nm, a diameter generally between 2-4nm, and a length of several micrometers.

Performance characteristics: It has good mechanical properties, such as high strength and high modulus; Has good electrical properties, such as high conductivity and semiconductor characteristics; Has high thermal conductivity; Has a large specific surface area.

Application areas: It has potential applications in composite materials, electronic devices, energy storage and conversion, sensors, and other fields. For example, it can be used to enhance the mechanical and electrical properties of composite materials; Can be used in electronic devices to manufacture transistors, sensors, etc; In the energy field, it can be used for supercapacitors, lithium-ion batteries, etc.


Technical Parameter

 

Color:black

OD:-4 nm

ID:-3nm

Purity:gt;60%

Length:~50 um

SSA:gt;350m2/g

True density:~2.1 g/cm3

EC:gt;100 s/cm

 

Product Features

 

Excellent mechanical properties: with extremely high strength and toughness. For example, its theoretical strength can reach tens or even hundreds of times that of steel.

Excellent electrical performance: can exhibit good conductivity, depending on aspect ratio, structure, and preparation method.

Good thermal performance: high thermal conductivity, capable of effectively transferring heat.

Large specific surface area: This makes it potentially applicable in fields such as adsorption and catalysis.


Application Fields

 

1. Composite material reinforcement: Multi walled carbon nanotubes have high strength and toughness. Adding them to matrices such as plastics, rubber, and metals can significantly improve the mechanical properties of the material, such as strength and stiffness. For example, grafting carbon nanotubes onto the surface of carbon fibers to obtain a multi-level structure can enhance the interfacial interaction with organic matrices and the mechanical properties of composite materials.

2. Electronic devices: Although their conductivity is not as single and excellent as single-walled carbon nanotubes, they still have good conductivity and can be used to manufacture high-performance conductive inks, sensors, flexible displays, and other electronic devices.

3. Electrode materials: Can be used as electrode materials for lithium-ion batteries and supercapacitors to improve energy storage and power output capabilities.

4. Catalysts and catalyst carriers: They can serve as catalysts themselves. It can also serve as a catalyst carrier, providing more active sites for catalytic reactions and enhancing catalytic performance due to its large specific surface area and unique structure. For example, acidified multi walled carbon nanotubes can be used as carriers to load composite inorganic salts, resulting in solid acid catalysts with superior catalytic effects than single component iron sulfate.

5. Energy field: In addition to the applications mentioned earlier in batteries, it can also be applied to hydrogen storage materials. The unique hollow structure and nanometer diameter of carbon nanotubes provide favorable conditions for hydrogen storage.

6. Absorbing materials: They have a certain ability to absorb electromagnetic waves and can be used to prepare absorbing materials. They have potential applications in military stealth, electromagnetic shielding, and other fields.

7. In the field of biomedicine: Its unique hollow structure and nanometer diameter can provide space for accommodating drugs, achieve high drug loading, and can pass through cell membranes and various biological barriers to deliver drugs to the inside of cells. In addition, it can effectively reduce the release rate of drugs and improve the sustained release effect.

8. Research field: commonly used in various scientific studies to help researchers explore the properties and potential applications of nanomaterials.


Related Information

Please e-mail for the detailed characterization data.

E-mail:[email protected]

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SKU: 77966220327

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Courtney lenihan
Lowell, US
★★★★★ 3
Good for non chewers
Color: Large size (ø 7.4")
Dog lived it for the 4 minutes before he chewed a large hole in it. Definitely not for heavy chewers.
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Reviewed in the United States on April 28, 2026
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Kindle Customer
Port Orchard, US
★★★★★ 1
Terrible
Color: Medium size (ø 5.5")
Received 39 minutes ago. Chewed up in tiny pieces already. Feels like hard plastic in a cheap car.
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Reviewed in the United States on December 12, 2025
R
Ryan
Cuba, US
★★★★★ 5
This is actually a fantastic dog toy!
Color: Large size (ø 7.4")
I originally got this for my golden retriever. He loves all things ball-shaped and I figured the handles would make this really easy for him to carry and for me to tug. It was a fantastic hit not only with the retriever but my lab and even my older Great Dane also love this toy. It's about the size of a soccer ball and covered in a nice rubber that can be chewed off if you have a destructive player but is more than durable enough for tossing around the house or even in the yard. Chewability-wise, The Dane managed to chew a couple of chunks off the handle part but he's probably a pretty extreme example. I think this would hold up just fine for most dogs' play. I just have to supervise it with my Dane so that he doesn't chew it into a pile of rubber. The biggest surprise of this ball was the fact that it has one of those slide whistles in it that makes a noise as it tumbles and rolls around. This proved irresistible to the Golden Retriever and the Lab. Every time they hear the slide whistle inside, they get up from wherever they are and focus 100% on this ball. It has some heft to it and it bounces a little but not as much as a regular ball its size, it's fun for the little ones to play with inside but it's primarily an outdoor dog toy. The handles are big enough for a human hand to hold them comfortably. It rolls in a hard-to-predict way that is extra helpful for the smaller dogs to chase.
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Reviewed in the United States on December 22, 2025
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Verified Purchase
Paul B.
Alexandria, US
★★★★★ 1
Trash
Color: Medium size (ø 5.5")
Poor quality,’trash
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Reviewed in the United States on January 9, 2026
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Verified Purchase
B. Hathcock
Omaha, US
★★★★★ 5
Aggressive chewers have met their match.
Size: 10.5 inch Rubber Flex Tread
We purchased this toy in 2022, it finally broke last night. Four years of rough play with 2 boxers who are aggressive chewers. They would tug together, gnaw on it for hours, and often leave it outside exposed to the elements, but this toy just kept going. It was by far their favorite toy, it kept them busy for hours. I just ordered a replacement. Well worth the money, perfect size. Highly recommend.
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Reviewed in the United States on April 1, 2026

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