Nanotechnology Now

Our NanoNews Digest Sponsors





Heifer International

Wikipedia Affiliate Button


DHgate

Home > Press > Jumbo 'nanotube' existence confirmed at Sandia/LANL nanotech center

JUMBO TUBES -- a scanning electron microscope image (left) of a huge carbon tube. Images at right depict cross-sectional view of the tube, with rectangular pore tunnels visible in its wall. (photo by Sandi/LANL Center for Integrated Nanotechnologies)
JUMBO TUBES -- a scanning electron microscope image (left) of a huge carbon tube. Images at right depict cross-sectional view of the tube, with rectangular pore tunnels visible in its wall. (photo by Sandi/LANL Center for Integrated Nanotechnologies)

Abstract:
A jumbo nanotube, like a jumbo shrimp, sounds contradictory.

A giant lightweight carbon nanotube with good strength and electrical properties is desirable, all right. A micron-sized carbon tube is easier to exploit commercially than any (so to speak) littler nanocousin.

Jumbo 'nanotube' existence confirmed at Sandia/LANL nanotech center

ALBUQUERQUE, NM | Posted on December 18th, 2008

But is it still a nanotube?

Jianyu Huang at the joint Sandia and Los Alamos national laboratories Center for Integrated Nanotechnologies (CINT), with colleagues elsewhere, got around this problem by naming their new creation "colossal carbon tubes" in a paper published in a recent issue of Physical Review Letters.

"The structures are remarkable because they are very light, possess good electrical conductivity, and mechanical properties similar to carbon fibers," Huang says.

Among possibilities of use are so-called textile electronics and body armor.

Because of their strange, surprising sponginess — walls of graphite-like carbon kept apart by hollow, rectangular compartments — the colossal fibrous tubes are 20 times less dense than carbon fibers, yet about the same length — in the centimeter range. And they appear to be slightly stronger — a very desirable, and until now unheard-of property in large carbon tubes.

The new form of carbon surprised leading nanotechnology researchers. MIT's carbon technology specialist Mildred Dresselhaus was quoted in an online news article in the journal Nature: "This is a new form of carbon that was unexpected to me."

Huang, who did the microstructure analysis confirming that the walls of such tubes consist of graphitic structure, describes the new creation as "a porous, giant, carbon fiber-like tubular structure" of diameters ranging from 40 to 100 microns. Conventional carbon nanotubes are about 10 nanometer diameter.

The material was made at Los Alamos National Laboratory. Researchers there led by Yuntian Zhu and Huisheng Peng found that heating ethylene and paraffin oil produced a carbon vapor that condensed into tubes of pure carbon tens of microns wide and up to several centimeters long. Zhu now is at North Carolina State University, and Huisheng Peng is at Tongji University in Shanghai.

####

About Sandia National Laboratories
Sandia is a multiprogram laboratory operated by Sandia Corporation, a Lockheed Martin company, for the U.S. Department of Energy’s National Nuclear Security Administration. With main facilities in Albuquerque, N.M., and Livermore, Calif., Sandia has major R&D responsibilities in national security, energy and environmental technologies, and economic competitiveness.

For more information, please click here

Contacts:
Neal Singer

(505) 845-7078

Copyright © Sandia National Laboratories

If you have a comment, please Contact us.

Issuers of news releases, not 7th Wave, Inc. or Nanotechnology Now, are solely responsible for the accuracy of the content.

Bookmark:
Delicious Digg Newsvine Google Yahoo Reddit Magnoliacom Furl Facebook

Related News Press

News and information

Phagraphene, a 'relative' of graphene, discovered September 2nd, 2015

A marine creature's magic trick explained: Crystal structures on the sea sapphire's back appear differently depending on the angle of reflection September 2nd, 2015

National Science Foundation Selects SUNY Poly CNSE for Expanded $2.1M Northeast Advanced Technological Education Center: NSF Center Locates to NanoCollege in Support of Flourishing Tech Industry in NYS September 1st, 2015

RUSNANOPRIZE Directorate Announces New Deadline for Nominations Submission – September 11, 2015 September 1st, 2015

Nanotubes/Buckyballs/Fullerenes

$200K Awarded to Develop In Vitro Lung Test for Toxicity of Inhaled Nanomaterials: In Vitro Lung Test Designed to Protect Human Health and Replace Animal Testing September 1st, 2015

Developing Component Scale Composites Using Nanocarbons August 26th, 2015

Southampton scientists find new way to detect ortho-para conversion in water August 25th, 2015

Revolutionary MIT-Developed Nanotechnology Company Showcases at CAMX in Dallas August 20th, 2015

Discoveries

Phagraphene, a 'relative' of graphene, discovered September 2nd, 2015

A marine creature's magic trick explained: Crystal structures on the sea sapphire's back appear differently depending on the angle of reflection September 2nd, 2015

Hot electrons point the way to perfect light absorption: Physicists study how to achieve perfect absorption of light with the help of rough ultrathin films September 1st, 2015

Using DNA origami to build nanodevices of the future September 1st, 2015

Announcements

Phagraphene, a 'relative' of graphene, discovered September 2nd, 2015

A marine creature's magic trick explained: Crystal structures on the sea sapphire's back appear differently depending on the angle of reflection September 2nd, 2015

Waste coffee used as fuel storage: Scientists have developed a simple process to treat waste coffee grounds to allow them to store methane September 2nd, 2015

Nanotech could rid cattle of ticks, with less collateral damage September 1st, 2015

NanoNews-Digest
The latest news from around the world, FREE



  Premium Products
NanoNews-Custom
Only the news you want to read!
 Learn More
NanoTech-Transfer
University Technology Transfer & Patents
 Learn More
NanoStrategies
Full-service, expert consulting
 Learn More











ASP
Nanotechnology Now Featured Books




NNN

The Hunger Project







Car Brands
Buy website traffic