Graphitized MWNTs  10-20nm
SKU: 57839721469

Graphitized MWNTs 10-20nm

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Description

Graphitized MWNTs 10-20nmProduct Name NameGraphitized 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

Product Name

Name:Graphitized 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:0-20nm

ID:-10nm

Purity:gt;99.9%

Length:-30um

SSA:gt;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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Fabricio
Draper, US
★★★★★ 5
A must for Spanish Speaking Officers.
Format: Paperback
I sought out this book because I did not feel comfortable speaking Spanish in a law enforcement context. This booked greatly improved my Spanish and allowed me to bolster my proficiency. If you are a Spanish Speaking officer, please get this book.
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Jan
Cuba, US
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This book applies to others also, not just law enforcement. There is a lot of information in the book that will help you with all your Spanish. Found it to be accurate with dealing with locals as many of the words are a little different than what you learn in Spanish 101(Spain Spanish). For law enforcement officials wanting to learn to communicate with latinos in america, this book will help you learn what you want to say. There are three CD's with the book. I would strongly suggest listening to the CD's over and over again.....it really will help you.
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It's an excellent textbook from the Barron's series of which I have this author's other books. I love the set up. I'm constantly trying to improve my Spanish in different categories....these books are amazing.
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Kyle Henderson
Belleville, US
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A must-read for anyone interested in communication studies, rhetoric, American public debates
Format: Paperback
In this seminal book, Fisher expounds his "narrative paradigm," a sweeping theory of human communication and more. Professor Emeritus at USC's Annenberg School of Communication, Fisher's discipline was rhetoric. But the book's subtitle -- "Toward a Philosophy of Reason, Value, and Action" -- isn't a stretch. Fisher's theory is a grand project extending its purview way beyond the communication department's door. At root is Fisher's rejection of what he calls the "rational world paradigm," which falsely separates logos from mythos, reason from imagination, fact from value. Doesn't work that way, Fisher says. No such thing as a value-free belief, assertion, or action. Instead, we evaluate according to a "logic of good reasons" -- reasons we value as good -- rooted in the narratives of our experience. An under-appreciated aspect of Fisher's work is the application of his theory to American politics. America's most enduring narrative is The American Dream. But that dream comprises two sub-narrative strands: the "materialistic myth" and the "moralistic myth." These two strands broadly represent conservative and progressive impulses respectively, but those threadbare categories don't do Fisher's explication justice. The two myths find their roots in the narratives of the earliest Americans, and have been battling it out ever since. It's a credible understanding of the history of American public moral debates.
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