Nanotechnology Now

Our NanoNews Digest Sponsors

Heifer International

Wikipedia Affiliate Button

Home > Press > NJIT Chemists Modify Carbon Nanotubes Using Microwaves

Abstract:
Novel method of changing the chemical characteristics of carbon nanotubes

NJIT Chemists Modify Carbon Nanotubes Using Microwaves

Neward, NJ | March 17, 2005

Researchers at New Jersey Institute of Technology have discovered a novel method of changing the chemical characteristics of carbon nanotubes by heating them in a closed vessel microwave oven. Somenath Mitra, PhD, professor of chemistry and environmental sciences, and Zafar Iqbal, PhD, also a professor of chemistry and environmental sciences, will discuss their findings Thursday, March 17 from 8:30 a.m.-12:15 p.m. at the 229th national meeting of the American Chemical Society (ACS) at the Hyatt Regency Hotel, San Diego.

The pair, aided by doctoral student Yubing Wang, have written “Microwave-Induced, Green and Rapid Chemical Functionalization of Single-Walled Carbon Nanotubes” to be published in a forthcoming issue of the journal Carbon.

Carbon nanotubes, which were only discovered in 1991, are molecular-scale nano materials made from carbon atoms connected single-file in a tube. The tubes are closed at either end by hemispherical structures and typically exhibit lengths ranging from tens of micrometers to a few millimeters.

“We understand ourselves to be the first in the world to have discovered this method,” said Mitra. “The beauty is that our method is green and clean. We use no toxic material and reduce the reaction times from hours—on occasion even days—to three minutes.”

Iqbal noted that the method costs much less than others currently used. “Plus, the solubility of our carbon nanotubes are several times higher than any other researcher has yet reported in this short amount of time.” Solubility is the most essential characteristic of carbon nanotubes since researchers must be able to dissolve them to see them work their magic.

With a microwave oven hitting temperatures of 250 degrees Celsius, the researchers can chemically modify the tubes. Such a temperature is closer to radiation treatment than the output of a kitchen microwave oven. Since the reactions are fast, the nanotubes are not damaged or structurally modified.

“A carbon nanotube is just carbon,” said Mitra. “The surprise for us is that it’s difficult to make nanotubes react with anything. They are like diamonds—very, very inert. They don’t react and they don’t dissolve in water. But, if you can change their chemical characteristics as we have done using our method, we see them transform right before our eyes.”

Once the tiny, microscopic tubes are chemically altered, they become soluble in common solvents like water and alcohol, and new kinds of films or coatings can be produced. The tubes can also be formulated into paints and plastic nanocomposites. The functionalized nanotubes become more useful than the pristine ones because the functionalized groups can be tailored for specific applications.

“Nanotubes are opening new vistas for products and design,” added Mitra. “For example, the space shuttle includes components of lightweight carbon or carbon-polymer composites. The military especially likes these materials because ultimately they will allow for the development of lightweight equipment.”

###

New Jersey Institute of Technology, the state's public technological research university, enrolls more than 8,200 students in bachelor's, master's and doctoral degrees in 100 degree programs offered by six colleges: Newark College of Engineering, New Jersey School of Architecture, College of Science and Liberal Arts, School of Management, Albert Dorman Honors College and College of Computing Sciences. NJIT is renowned for expertise in architecture, applied mathematics, wireless communications and networking, solar physics, advanced engineered particulate materials, nanotechnology, neural engineering and eLearning.



Contact:
Sheryl Weinstein
Public Relations
973-596-3436
sheryl.m.weinstein@njit.edu

Copyright © NJIT

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

Possible Futures

Novel 'converter' heralds breakthrough in ultra-fast data processing at nanoscale: Invention bagged four patents and could potentially make microprocessor chips work 1,000 times faster October 20th, 2017

Bringing the atomic world into full color: Researchers turn atomic force microscope measurements into color images October 19th, 2017

'Find the Lady' in the quantum world: International team of researchers presents method for quantum-mechanical swapping of positions October 18th, 2017

Long nanotubes make strong fibers: Rice University researchers advance characterization, purification of nanotube wires and films October 17th, 2017

Nanotubes/Buckyballs/Fullerenes/Nanorods

Long nanotubes make strong fibers: Rice University researchers advance characterization, purification of nanotube wires and films October 17th, 2017

How to draw electricity from the bloodstream: A one-dimensional fluidic nanogenerator with a high power-conversion efficiency September 11th, 2017

Silk could improve sensitivity, flexibility of wearable body sensors August 20th, 2017

Regulation of two-dimensional nanomaterials: New driving force for lithium-ion batteries July 26th, 2017

Discoveries

A step closer to understanding quantum mechanics: Swansea University’s physicists develop a new quantum simulation protocol October 22nd, 2017

Creation of coherent states in molecules by incoherent electrons October 21st, 2017

Novel 'converter' heralds breakthrough in ultra-fast data processing at nanoscale: Invention bagged four patents and could potentially make microprocessor chips work 1,000 times faster October 20th, 2017

Strange but true: turning a material upside down can sometimes make it softer October 20th, 2017

Announcements

A step closer to understanding quantum mechanics: Swansea University’s physicists develop a new quantum simulation protocol October 22nd, 2017

Creation of coherent states in molecules by incoherent electrons October 21st, 2017

Strange but true: turning a material upside down can sometimes make it softer October 20th, 2017

Leti Coordinating Project to Develop Innovative Drivetrains for 3rd-generation Electric Vehicles: CEA Tech’s Contribution Includes Liten’s Knowhow in Magnetic Materials and Simulation And Leti’s Expertise in Wide-bandgap Semiconductors October 20th, 2017

Environment

Single ‘solitons’ promising for optical technologies October 9th, 2017

Solar-to-fuel system recycles CO2 to make ethanol and ethylene: Berkeley Lab advance is first demonstration of efficient, light-powered production of fuel via artificial photosynthesis September 19th, 2017

High-tech electronics made from autumn leaves: New process converts biomass waste into useful electronic devices August 30th, 2017

Nanoparticles pollution rises 30 percent when flex-fuel cars switch from bio to fossil: Study carried out in São Paulo, home to the world's largest flex fuel urban fleet, shows increase of ultrafine particulate matter when ethanol prices rose and consumption fell August 28th, 2017

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