Nanotechnology Now

Our NanoNews Digest Sponsors





Heifer International

Wikipedia Affiliate Button


android tablet pc

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

Organometallics welcomes new editor-in-chief: Paul Chirik, Ph.D. July 22nd, 2014

The Hiden EQP Plasma Diagnostic with on-board MCA July 22nd, 2014

Iran to Hold 3rd Int'l Forum on Nanotechnology Economy July 22nd, 2014

Nanometrics Announces Upcoming Investor Events July 22nd, 2014

Nanotubes/Buckyballs

University of Houston researchers create new method to draw molecules from live cells: Technique using magnetic nanomaterials offers promise for diagnosis, gene therapy July 17th, 2014

3-D nanostructure could benefit nanoelectronics, gas storage: Rice U. researchers predict functional advantages of 3-D boron nitride July 15th, 2014

Researchers discover boron 'buckyball' July 14th, 2014

IBM Announces $3 Billion Research Initiative to Tackle Chip Grand Challenges for Cloud and Big Data Systems: Scientists and engineers to push limits of silicon technology to 7 nanometers and below and create post-silicon future July 10th, 2014

Discoveries

Researchers create vaccine for dust-mite allergies Main Page Content: Vaccine reduced lung inflammation to allergens in lab and animal tests July 22nd, 2014

NIST shows ultrasonically propelled nanorods spin dizzyingly fast July 22nd, 2014

Penn Study: Understanding Graphene’s Electrical Properties on an Atomic Level July 22nd, 2014

NUS scientists use low cost technique to improve properties and functions of nanomaterials: By 'drawing' micropatterns on nanomaterials using a focused laser beam, scientists could modify properties of nanomaterials for effective applications in photonic and optoelectric applicat July 22nd, 2014

Announcements

Nanometrics Announces Upcoming Investor Events July 22nd, 2014

Bruker Awarded Fourth PeakForce Tapping Patent: AFM Mode Uniquely Combines Highest Resolution Imaging and Material Property Mapping July 22nd, 2014

NIST shows ultrasonically propelled nanorods spin dizzyingly fast July 22nd, 2014

Penn Study: Understanding Graphene’s Electrical Properties on an Atomic Level July 22nd, 2014

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







© Copyright 1999-2014 7th Wave, Inc. All Rights Reserved PRIVACY POLICY :: CONTACT US :: STATS :: SITE MAP :: ADVERTISE