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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4.1 ★★★★★
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Verified Purchase
Another Floyd
Whiting, US
★★★★★ 5
Essential kit for those with fetch dogs
Size: 18in, Style: Sport
Now in our 3rd year, my Brittany and I are down to about 40 fetch tosses a day, some 14,600 tosses a year. The Chuck It launcher wears well, so, figure at least 5 years of use, for 73,000 tosses. That makes for a terrific value! There are several key benefits of the Chuck It launchers: One is that you can chuck the ball further than you can throw, which allows you to exercise your dog more easily. The second is that you can pick up and launch the ball without touching it, which means NO slime! And, the Chuck It also gives extra reach when you have to retrieve a ball from sticker brambles. Those are great features for anyone with a fetch dog. If you also happen to have a weak arm or shoulder, the Chuck It launchers provide nice throwing options. I generally throw underhanded. I can't get the full potential range, that way, but, I still get good, long tosses. I curl my second finger above the last bump on the handle, and use a good wrist flick along with arm swing. I've seen others throw side-arm with the Chuck It. I had originally written a second review for the longer 25M Chuck It. Either I, or Amazon messed up, and it looks like I can have only this one review. So, here are my additional thoughts on the 25M: I bought the 25M so that I could throw the ball even further! The good news is, you really can chuck further, with the longer chucker. The bad news is, those longer throws do require more arm and shoulder strength than when using the 18M. This becomes more obvious when you've done 3 or 4 dozen throws. I would recommend the 25M only for those with the youth and/or strength to get the most out of it. Otherwise, I'd say, go with the 18M.
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Reviewed in the United States on March 11, 2016
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Verified Purchase
charles jensen
New York, US
★★★★★ 4
Will buy again
Size: 25in, Style: Sport
Fits the bill.
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Reviewed in the United States on May 28, 2025
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Verified Purchase
Liz H.
Pawtucket, US
★★★★★ 5
Must Have for Tiring Out Your Pup
Size: 25in, Style: Sport
The Chuckit! Sport 25M Dog Ball Launcher is an absolute must-have for any dog owner with an active pup! This thing takes fetch to a whole new level—effortless long throws, hands-free pickup (no more slobbery tennis balls!), and a comfortable grip that makes playtime easier and way more fun. My dog absolutely loves it, and I love that it helps her burn off energy without tiring out my arm. The included medium ball is the perfect size for medium to large dogs, and the durable construction means it's built to last. If you're looking for a simple but game-changing way to upgrade fetch, this is it. Highly recommend!
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Reviewed in the United States on February 13, 2025
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Verified Purchase
Ann
Boise, US
★★★★★ 5
My Niece dog loves it!
Size: 18in, Style: Sport
This ball launcher takes a bit of getting. used to, but it is really helpful for those of us who are not MLB pitchers! The launcher itself is a sturdy plastic that is not brittle yet not soft; when the ball is launched there is no destructive bending in the shaft. The handle is padded and ergonomically sound while the cup end cradles the ball but has cut-outs on each side for easy loading and unloading of the ball. It did take a bit of practice for me to get the hang of it, but for my husband and son it was much easier. The launcher works well to help us older, non-gifted athletes launch the ball farther and faster while saving the shoulder, elbow, and wrist (important if there is any arthritis). The ball fits nicely into the cup and releases easily. The 2.5 size was too small for my Doberman, so we opted for the 3.5 in launcher. This smaller launcher and ball are now in the employ of my sister and her husband for their retriever-border collie mix, an 18 month old little fireball!. This is just the right size for her. My sister's husband has difficulty with arthritis and is neither quick on his feet nor able to stand very long. So the launcher comes in very handy. He can actually sit in a lawn chair and throw the ball repeatedly when their dog retrieves and returns it to him. That is a win- win! Top 3 Likes: -Easy to use -Helps older pet owner -Drives the ball farther and faster Top 3 Dislikes: -With repeated uses the edges of the launcher appear to get scuffed and scratched -Some ingrained staining on the edges persists requiring scrubbing to remove -There is a mild worry that with time the launcher may snap
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Reviewed in the United States on September 4, 2024
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Verified Purchase
RAWN001
Lexington, US
★★★★★ 5
My dog loves it
Size: 25in, Style: Sport
I am amazed at how far I can throw a tennis ball. My dog and I absolutely love this. What happens to work well with the squeaky balls?I get on amazon as well. I have one of these at home, And I keep another one in the truck. Very durable, The balls have good bounce, My dog and I have a lot of fun with it. My dog doesn't chew much on balls, But this one seems like it's going to stand out, I love the versatility, Hey can handle almost ending ball that same size. Are you solid rubber bouncy balls, Squeak. Ing tuba balls, Whiffle balls with all the holes in it, Even the squeaky chewing balls. As long as there are that same size. love the product. I've been using them for a few years.
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Reviewed in the United States on July 22, 2024

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