SKU: 6397574504

Graphitized Hydroxylate MWNTs 10-20nm

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Description

Graphitized Hydroxylate MWNTs 10-20nmProduct Name Name Grapheitized Hydroxylate MWNTs 10 20nm Product Overview The CVD method for preparing carbon nanotubes is widely used because of its advantages such as mature method and high yield. However, the preparation of carbon nanotubes by CVD method often requires the introduction of a catalyst, and the nanotubes grow gradually along the radial and axial directions with the catalyst particle as the center. The difficulty of removing the

Product Name

Name :Grapheitized Hydroxylate MWNTs 10-20nm


Product Overview

The CVD method for preparing carbon nanotubes is widely used because of its advantages such as mature method and high yield. However, the preparation of carbon nanotubes by CVD method often requires the introduction of a catalyst, and the nanotubes grow gradually along the radial and axial directions with the catalyst particle as the center. The difficulty of removing the catalyst has become an important factor restricting the purity of the carbon tube, which will limit the application of the carbon tube to a certain extent. Graphitized carbon tube is the ordinary carbon tube in the inert atmosphere of high temperature treatment, can effectively remove the catalyst and other impurities, effectively improve the purity of the carbon tube, reduce defects, effectively improve its microstructure, in order to obtain good electrical, thermal, mechanical and other properties. The higher the degree of graphitization, the better the crystallinity, thermal stability and electrical conductivity of the carbon nanotubes are generally better.


Technical Parameter

 

Color: Black

OD:10-20nm

ID:5-10nm

Purity:>99.9%

Length:5-30um

-OH Content:1.53 wt%

SSA:>100 m2/g

True density: ~2.1 g/cm3

EC:>100s/cm


Product characteristics

High purity: Most of the metal impurities are removed under high temperature treatment of the carbon tube.

It has good flexibility and elasticity and can withstand large deformation without breaking. For example, in some micro-mechanical parts, complex movements can be achieved using their flexibility.

Electrical properties:

It has good electrical conductivity, and the electrical conductivity can be close to copper.

Exhibit unique quantum conductivity properties. For example, in nanoelectronic devices, their conductance characteristics contribute to precise current control.

Thermal properties:

The thermal conductivity is very high and can effectively conduct heat.

Good thermal stability, can still maintain the stability of structure and performance in high temperature environment. This makes it a potential application in highly efficient cooling materials, such as the cooling components of high-power electronic devices.

Chemical properties:

High chemical stability, not easy to react in most chemical environments.

The surface can be chemically modified to meet different application requirements. For example, it can be better dispersed in certain solvents or substrates through chemical modifications.

Optical properties:

It has unique optical absorption and emission characteristics in the near infrared and visible regions.

It can be used to make optical sensors and light-emitting devices.


Application Fields

Battery electrode: graphitized carbon nanotubes can be used as a conductive agent for lithium batteries to improve the conductivity and cycle life of the battery.

Composite materials: By adding graphitized carbon nanotubes to substrates such as polymers, metals or ceramics, composites with high strength, high electrical conductivity and high thermal conductivity can be prepared.

Electronic devices: Integrated circuits based on semiconductor graphitized carbon nanotubes and display backplane drivers are being developed.

Sensor parts: graphitized carbon nanotubes have the characteristics of high sensitivity and fast response, and can be used to prepare gas sensors, biosensors, etc.

Electric heater parts: Using the good electrical conductivity and electric heating conversion performance of graphitized carbon nanotubes, efficient electric heater parts can be prepared.


Related Information

Please e-mail for the detailed characterization data.

E-mail:[email protected]

 

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SKU: 6397574504

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4.5 ★★★★★
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Product Reviews
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Verified Purchase
SweetRead
Lowell, US
★★★★★ 5
Perfect Combo of Fun and Serious
Format: Kindle
This story was the perfect combination of humor and seriousness. I, even as an adult, remember some of those same feelings and the drama of junior high years. It made me take a look even at myself and ask what I look for in people? It made me ask myself if I need to reach out and apologize. But it also ales me want to do better. Step away from social media. When on social media, make sure I think about my comments and how they can be construed or make people feel. Help my nieces and nephews compliment actions and other such areas and not looks. To look deeper into a person. Well written. Lots of fun. And just what I needed in a book. Chad Morris and Shelly Brown do it again.
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Reviewed in the United States on March 3, 2024
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Verified Purchase
Srimannarayana
Lowell, US
★★★★★ 5
Excellent
Format: Hardcover
I really like this book has a good story
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Reviewed in the United States on March 7, 2025
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Verified Purchase
Amazon Customer
Lowell, US
★★★★★ 4
Great book with great lessons I want all my kids to learn.
Format: Hardcover
A fun book about kids going to “virtual” school during the pandemic, but like, the coolest virtual school I’ve ever heard of. They use VR headsets to attend from the comfort and safety of their own home, and because it’s a digital world, they have the opportunity to re-invent themselves with customizable avatars. Some go as themselves, some simplify, and some go all-out for reasons that come out as the story progresses. As three students learn to navigate a new school, new friends, and new challenges they learn life lessons that I wish I could drill in to my budding teenagers. This was a fun, quick story that I’m enjoying reading to my middle grade children. I finished it on my own after bedtime because I couldn’t put it down. My eyes may have leaked a few times, but knowing Chad and Shelly’s other wonderful books, it didn’t surprise me in the least that I was so moved. 4.5 stars because some of the VR descriptions don’t mesh with real life VR capabilities (i.e. the motion sickness that would have plagued every kid the way the games/classes were described), but bonus points for the imagination and creativity in creating the school we all wish we could have attended. (If we couldn’t get in to Cragbridge that is…) 😉👍🏻 Thanks for another great book that I’m eager to put into my kids hands.
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Reviewed in the United States on February 5, 2023
M
Melissas Bookshelf
Port Orchard, US
★★★★★ 5
A middle grade read with great messages!
Format: Hardcover
“‘And I learned that being good is a lot more important than looking good.’ I took a deep breath. ‘I know, it sounds like a fridge magnet, but it’s true.’ Me. No filter. Smiling.” Virtually Me is a clever, heartfelt, realistic fiction middle grade readers will enjoy! Three Jr. High students share their hopes, fears, and deepest secrets as they attend an experimental virtual school during the 2021 pandemic year. Through their experiences, they learn valuable lessons about self acceptance, valuing things other than appearance, reinvention, second chances, and true friendship. It’s a thoughtful story with great messages. There are even references to K-pop! Bradley, Hunter, and Edelle all have their own reasons for attending virtual school. Ever since having a mean prank pulled on him in 3rd grade, Bradley has withdrawn himself and tried to remain in the background. He longs for friendship and acceptance. His secret dreams of sharing his talent for dancing and love of K-pop remain hidden. Attending virtual school gives him an opportunity to reinvent himself. He can design his avatar any way he wants and create a new, more hip persona. Hunter is hiding a secret from his friends. He’s experiencing a form of alopecia most likely alopecia areata and is embarrassed about his patchy hair loss. He’s extremely competitive and for one so focused on appearance and winning, this trial is extremely difficult. Virtual school allows him to be his popular, competitive self yet hide his real appearance. But, his drive to win may just be his downfall. Edelle is attending virtual school because her mom hopes to convince her that appearances aren’t everything. For the popular girl who lives for likes on social media, being forced to adopt a plain avatar and miss out on in person school is going to be difficult. Edelle is in for a huge shock when she learns what it’s like to be just average looking. When her supposed best friend who fawned all over her in real life doesn’t recognize her or give her the time of day, she has to decide what real friendship is. This is one of the first middle grade books I’ve seen that subtly addresses the pandemic and what kids were going through during that time. I loved the lessons each kid learns as they navigate online school The virtual setting allowed the kids to really explore who they were. I liked how each one had a different problem to overcome which made them easily relatable. I also loved Jasper. He’s the glue that keeps everyone together and when you learn his reason for attending virtual school, it really drives home the messages the authors were trying to convey throughout. It’s well written, fun, and even enjoyable for adults to read. This is definitely one book I’d recommend to ages 10 and up. I received advanced complimentary copies from the publisher and NetGalley. All opinions are my own and I was not required to provide a positive review. 4 1/2 stars
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Reviewed in the United States on February 7, 2023
L
Lily
Battle Creek, US
★★★★★ 5
Virtual reality school!
Format: Hardcover
This book explores the idea of an online school that looks and feels like a regular school but is attended from your own home while wearing a VR headset. The reader experiences it through the eyes of five very different kids: Bradley Horvath is full of personality but has always been picked on or ignored because he is overweight. Until he changes the appearance of his avatar and goes by Daebak nobody knows that he loves K-pop, dancing, and is fun to be around. I loved getting to know Bradley and liked him from the first page. Edelsabeth/Edelle Dahan-Miller has the opposite situation as Bradley. She is beautiful and popular, so nobody sees her for who she is inside. Her mom requires her avatar to be plain so she will learn to focus on other people and not just on looking cute. She is embarrassed and doesn’t want anyone to know it’s her so she changes her name to Vanya. Hunter Athanasopoulos plays lacrosse and loves to be the center of attention but doesn’t want kids to find out he now has bald spots from alopecia. He doesn’t want to be judged by his hair loss even though he judges everyone else based on their appearance and is only kind to people who are beautiful and popular. Jasper is known for the yellow tracksuit he wears. He is kind, a peacemaker, and brings people together. He likes soccer and video games but attends virtual school for health reasons. Keiko is the least developed character, but I would like to know more about her. She is moody, doesn’t talk much or show emotion, and is good at art. I enjoyed reading this book. It pulls the reader in and keeps you there with fun descriptions. The kids trade off telling the story with each chapter in a chatty conversational way, so it never gets tedious or boring. It has a feel-good happy ending and teaches kids lessons along the way like what being a true friend means and seeing the people around you for who they are. 5 big stars! Thanks to Shadow Mountain Publishing for an ARC to use for my review.
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Reviewed in the United States on February 9, 2023

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