Help


[permalink] [id link]
+
Page "Carbon nanotube" ¶ 23
from Wikipedia
Edit
Promote Demote Fragment Fix

Some Related Sentences

Single-walled and nanotubes
Single-walled nanotubes are likely candidates for miniaturizing electronics.
Single-walled nanotubes are formed from the block of graphite and metal catalyst particles, whereas multi-walled nanotubes form from the pure graphite starting material.

nanotubes and are
Nowadays, nanomaterials such as fullerene and carbon nanotubes are added to rackets giving them greater durability.
Carbon nanotubes ( CNTs ) are allotropes of carbon with a cylindrical nanostructure.
Nanotubes are categorized as single-walled nanotubes ( SWNTs ) and multi-walled nanotubes ( MWNTs ).
These bonds, which are stronger than the sp < sup > 3 </ sub > bonds found in alkanes and diamond, provide nanotubes with their unique strength.
There is no consensus on some terms describing carbon nanotubes in scientific literature: both "- wall " and "- walled " are being used in combination with " single ", " double ", " triple " or " multi ", and the letter C is often omitted in the abbreviation ; for example, multi-walled carbon nanotube ( MWNT ).
m, the nanotubes are called armchair nanotubes.
There are two models that can be used to describe the structures of multi-walled nanotubes.
Double-walled carbon nanotubes ( DWNT ) form a special class of nanotubes because their morphology and properties are similar to those of SWNT but their resistance to chemicals is significantly improved.
Carbon nanobuds are a newly created material combining two previously discovered allotropes of carbon: carbon nanotubes and fullerenes.
For example, carbon can be found as diamond, which has a tetrahedral structure around each carbon atom ; graphite, which has layers of carbon atoms with a hexagonal structure stacked on top of each other ; graphene, which is a single layer of graphite that is incredibly strong ; fullerenes, which have nearly spherical shapes ; and carbon nanotubes, which are tubes with a hexagonal structure ( even these may differ from each other in electrical properties ).
Some experts expect to discover such nanotubes in more relics as they are analyzed more closely.
Lasers are then used that pass harmlessly through the body, but heat the nanotubes, causing the death of the cancer cells.
Gold nanoparticles or carbon nanotubes are the most likely candidate.
Cylindrical ones are called carbon nanotubes or buckytubes.
A 2011 published study documented the first metal-free electrocatalyst using relatively inexpensive doped carbon nanotubes that are less than 1 % the cost of platinum and are of equal or superior performance.
They are similar in composition to the traditional inks in that they use a polymer to suspend the carbon nanotubes.
If carbon nanotubes are filled with those lanthanum-encapsulated fullerenes and annealed, metallic nanochains of lanthanum are produced inside carbon nanotubes.

nanotubes and from
A research team in Germany published a report in 2006 revealing nanowires and carbon nanotubes in a blade forged from Damascus steel.
The discovery of carbon nanotubes in the Damascus steel's composition supports this hypothesis, since the precipitation of carbon nanotubes likely resulted from a specific process that may be difficult to replicate should the production technique or raw materials used be significantly altered.
Recently, carbon inks made from carbon nanotubes have been successfully created.
The Agera's design follows a clear lineage from the previous Koenigsegg supercars, but adds many special new features, such as a wider front track, new styling and aero features, and a new interior ; including a new lighting technique they call " Ghost Light ," which consists of microscopic carbon nanotubes to hide the interior lighting until it's turned on, which then shines through what appeared to be solid aluminium.
Unlike carbon nanotubes, whose motion of electrons can fall under the regime of ballistic transport ( meaning the electrons can travel freely from one electrode to the other ), nanowire conductivity is strongly influenced by edge effects.
Both the British and American militaries have expressed interest in a carbon fiber woven from carbon nanotubes that was developed at University of Cambridge and has the potential to be used as body armor.
Peter Paufler from Dresden University of Technology has discovered evidence of carbon nanotubes in wootz steel, although this is disputed.
Certain species of carbon nanotubes also undergo photochemical reactions when exposed to intense pulsed light from a laser, arc lamp, or flashbulb.
Carbon nanotubes are particularly susceptible to this spontaneous ignition when exposed to the light from a flashtube .< ref >
With the financial support from Samsung Advanced Institute of Technology ( SAIT ), Its goal is to become one of the top 5 nanotechnology-related institutes by the year 2010, Dr. Sumio Iijima who discovered carbon nanotubes is the Dean of SAINT now.
The focus is currently shifting from experimental work towards practical applications and device structures that will implement and profit from the use of carbon nanotubes.
The story is set around a group of students taking a college course in which they are asked to list ways in which society could benefit from the application of nanotubes.
Optical properties of semiconductor quantum dot-inorganic nanotube hybrids reveal efficient resonant energy transfer from the quantum dot to the inorganic nanotubes upon photoexcitation.

nanotubes and around
It has been previously shown that the polymer polyvinylpyrrolidone ( PVP, povidone ) can coil around individual carbon nanotubes to make them water-soluble.

nanotubes and per
In addition, the ballistic thermal conductance of a graphene is shown to give the lower limit of the ballistic thermal conductances, per unit circumference, length of carbon nanotubes.

nanotubes and
Sp²-hybridized carbon structures that in contrast to sp³-hybridized carbon in diamond arrange in planar sheets (" graphene " sheets ) are sometimes also included in the class of diamondoid materials for nanotechnology, e. g., graphite, carbon nanotubes consisting of sheets of carbon atoms rolled into tubes, spherical buckyballs and other graphene structures.
The term " aerogel " has been incorrectly used to describe airy masses of carbon nanotubes produced through certain chemical vapor deposition techniques such materials can be spun into fibers with strength greater than Kevlar, and unique electrical properties.

nanotubes and 60
Following nearly a decade's worth of research into the formation of alternate fullerene compounds ( e. g. C < sub > 28 </ sub >, C < sub > 70 </ sub >), as well as the synthesis of endohedral metallofullerenes ( M @ C < sub > 60 </ sub >), reports of the identification of carbon nanotube structures led Smalley to begin investigating the iron-catalyzed synthesis of carbon nanotubes.

nanotubes and %
Ajayan's team created the darkest material known to man, a carpet of carbon nanotubes, that reflects only 0. 045 % of the light.
The mechanical strength of cellulose fibers can be increased by an order of magnitude by adding only 0. 1 wt % of TMCH nanotubes, and measurements of electrical conductivity of polycaprolactone doped with TMCH nanotubes revealed a percolative behavior with an extremely low percolation threshold.

nanotubes and by
Individual nanotubes naturally align themselves into " ropes " held together by van der Waals forces, more specifically, pi-stacking.
Individual gadolinium atoms have been isolated by encapsulating them into fullerene molecules and visualized with transmission electron microscope .< ref > Individual Gd atoms and small Gd clusters have also been incorporated into carbon nanotubes.
** The first report on carbon nanotubes is published by Sumio Iijima in the journal Nature.
* 1985-The first fullerene molecule discovered by scientists at Rice University ( see also: Timeline of carbon nanotubes )
For instance, sheet diamond or carbon nanotubes could be produced by a chain of non-biological reactions that have been designed using the basic model of biology.
The main character in Meg Gardiner's novel The Memory Collector suffers brain damage brought on by contamination with a material containing carbon nanotubes.
The nanotubes have sufficient length to fit between two platinum nanogap electrodes produced by scanning probe nanofabrication and are 180 nanometer apart.
* The science and technology of carbon nanotubes edited by Kazuyoshi Tanaka, Tokio Yamabe, Kenichi Fukui ( 1999 )
Transistors are one of the basic building blocks for all electronic devices, so by effectively developing usable transistors, carbon nanotubes and graphene are both very crucial to NEMS.
The name comes is shaped by similatity on the name of the paper that can be made by filtering carbon nanotubes, the so called bucky paper.
While bulk synthesis of such nanoparticles as carbon nanotubes is currently too expensive for widespread use, some less extreme nanostructured materials can be synthesized by traditional methods, including electrospinning and spray pyrolysis.
As the laser ablates the target, carbon nanotubes form and are carried by the gas flow onto a cool copper collector.
The enhanced stiffness and toughness of PMMA fiber meshes by means of inorganic nanotubes addition may have potential applications as impact-absorbing materials.
To this goal, inorganic nanotube hybrids were made by filling WS < sub > 2 </ sub > nanotubes with molten lead, antimony or bismuth iodide salt by a capillary wetting process, resulting in PbI < sub > 2 </ sub >@ WS < sub > 2 </ sub >, SbI < sub > 3 </ sub >@ WS < sub > 2 </ sub > or BiI < sub > 3 </ sub >@ WS < sub > 2 </ sub > core-shell nanotubes.

0.531 seconds.