SKU: 49863886491

Carboxyl MWCNTs(long) 5-15 nm

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Description

Carboxyl MWCNTs(long) 5-15 nmProduct Name NameCarboxyl MWCNTs(long) 5 15 nm Product Overview Carbon nanotubes are simple substances composed of carbon atoms, which can be regarded as hollow tubular structures formed by the curling of graphene. On the surface of carbon nanotubes, carbon atoms form bonds with each other in the form of sp2 hybridized orbitals, arranged in a regular hexagonal graphite layer structure. In theory, this hexagonal structure is perfectly and uniformly

Product Name

Name:Carboxyl MWCNTs(long)  5-15 nm


Product Overview

Carbon nanotubes are simple substances composed of carbon atoms, which can be regarded as hollow tubular structures formed by the curling of graphene. On the surface of carbon nanotubes, carbon atoms form bonds with each other in the form of sp2 hybridized orbitals, arranged in a regular hexagonal graphite layer structure. In theory, this hexagonal structure is perfectly and uniformly distributed on the surface of the entire carbon nanotube. In terms of topology, the shared structure and properties between graphene and carbon nanotubes are one of the important factors contributing to their similar properties. However, due to the curvature of the graphite layer in carbon nanotubes and the potential defects that may occur during the growth process, sp3 hybridization may occur in the hexagonal ring structure on the surface of carbon nanotubes, leading to the formation of pentagonal or seven membered rings. Carbon nanotubes are classified into single-walled carbon nanotubes, double walled carbon nanotubes, and multi walled carbon nanotubes based on the curling of graphite sheets with different layers.

There are many preparation processes and methods for carbon nanotubes, and carbon nanotubes with corresponding properties and structures can be prepared through different methods. At present, the main methods for preparing carbon nanotubes include graphite arc method, laser evaporation graphite method, and chemical deposition method. Chemical deposition method has the advantage of large-scale production and is currently a widely used method.


Technical Parameter

Color:black

OD:-15nm

ID:-5nm

Purity:gt;95%

Length:0-30um

-OH Content:.58 wt%

SSA:gt;200 m2/g

Tap density:.27 g/cm3

True density: ~2.1 g/cm3

EC:>100s/cm


 

Product Features

Multi walled carbon nanotubes have many unique properties:

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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Joseph Johnson
Battle Creek, US
★★★★★ 3
This first part of this book was great for learning about Gandhi's life
Format: Kindle
This first part of this book was great for learning about Gandhi's life. The pictures were enjoyable as well. Near the end of the first part of the book, the main ideas were being repeated. I didn't enjoy the second part of the book which focused on analyzing Gandhi's philosophy and also repeated many of the ideas made in the first part of the book.
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Reviewed in the United States on February 27, 2015
M
Verified Purchase
Meg
Dallas, US
★★★★★ 5
A Rich and Wonderful Pictorial Biography
Format: Paperback
This is a beautiful book that tells Ghandi's story through wonderful photographs and a simple and elucidating text. Ghandi appears os a struggling human being who changes himself through hard work. It really is a story of transformation, and it's very well told here. I liked it so well, I used it as part of our study on world revolutions when I was teaching ninth grade last year, and the students also liked it very much.
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Reviewed in the United States on September 21, 2013
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greg brown
Chelsea, US
★★★★★ 4
A Tool for Study
Format: Kindle
Though this book feels like it has been cobbled together from different sources it provides a sense of Gandhi's spiritual growth and the sources for it. His ideas and principles are clearly and often repeatedly stated offering the student the benefit of repetition in varied words. I'll be reading it again and again to extract a summary of those. Recommended for beginning Gandhi explorers.
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Reviewed in the United States on May 16, 2016
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Verified Purchase
GILES S RYAN
Alexandria, US
★★★★★ 5
Off the couch and on the road
Format: Kindle
Even those who are happy in their circumstance may find themselves discontented with the sameness of their days. An adventure will relieve this, and perhaps we can make the adventure happen, and yet the sameness of our days is the very thing that holds us back. But then we read how someone actually did it, had a true adventure to match the best of our daydreams, and we think, I could do that, too! Beth Jusino’s Camino memoir is for everyone who has ever considered doing something extraordinary, something beyond everyday life. She freely admits her life was sedentary — as couch-bound as you or I — but then the notion of the Camino grew from daydream to impulse, and then became irresistible, and she was fortunate to have a husband who gladly came along. It’s a book of astonishing quality, the words well-chosen, each page proof of her craft. She engages us not only with her physical ordeal (which is considerable, until she finds better shoes along the way), but also with her wonderment at the things she sees, the people she meets on the way, and we are compelled along, turning each page to see what happens next. Her story is not only rich in anecdote but also in the wealth of reflection on what she sees and hears along the way. Some particular scenes that stay fixed in memory are her encounters with a flock of sheep she meets at just the point when she needs them — a Camino miracle! — and also her descriptions of the great storks in their huge nests on all the church steeples and other high points along the way. Again and again I marked passages in the text so that I may come back and enjoy them once more. It’s also a love story, and the measure of this is the way we begin to anticipate her moments of particular challenge when her husband will do whatever needs doing or say whatever she needs to hear. It’s his story as well as hers, and she knows this and sets it down, and in so doing, tells us that perhaps she could not have finished her journey without him. Those who have walked any part of the road to Santiago will relive moments in familiar places and perhaps see what they missed the first time along the way and gain a new insight, a fresh view of what they overlooked before. And they may think, yes, I’ll go again! But if you’ve never had an adventure and Santiago is no more than the stuff of your daydreams, if you have so far only imagined such an undertaking, if the sameness of your days holds you back, then read this book. Then go out and do it. But make sure you buy the right shoes.
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Reviewed in the United States on January 27, 2021
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Maggie
Carnegie, US
★★★★★ 4
Walking from La Puy to Finisterre...a well written memoir
Format: Paperback
The key to writing a Camino book--at least from this reader's perspective--it to have a well-written, well-edited, and unique personal account of the adventure. I've read many Camino books that lack these three elements. WTTEOTW has all three elements and is a great addition to anyone's Camino library. The book is paced nicely and makes for an easy read. I was amused that the author had spent considerable time preparing for this trip yet seemed not to have absorbed some important information prior to the trip--e.g. appropriate footwear, the scramble for nightly accommodations, the frustrations that commonly occur while traveling in unfamiliar cultures. Her adjustments along the way provide humor and insight into preparing for things we've not yet experienced in our own lives.
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Reviewed in the United States on January 8, 2019

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