Nanotechnology Now

Our NanoNews Digest Sponsors



Heifer International

Wikipedia Affiliate Button


android tablet pc

Home > Press > UNL-led team finds less is more with adding graphene to nanofibers

An illustration of the UNL team's research is featured in one of the frontispieces of the Dec. 10 issue of Advanced Functional Materials.
An illustration of the UNL team's research is featured in one of the frontispieces of the Dec. 10 issue of Advanced Functional Materials.

Abstract:
Figuring that if some is good, more must be better, researchers have been trying to pack more graphene, a supermaterial, into structural composites. Collaborative research led by University of Nebraska-Lincoln materials engineers discovered that, in this case, less is more.

UNL-led team finds less is more with adding graphene to nanofibers

Lincoln, NE | Posted on December 11th, 2013

The team, led by Yuris Dzenis, McBroom professor of mechanical and materials engineering and a member of UNL's Nebraska Center for Materials and Nanoscience, learned that using a small amount of graphene oxide as a template improves carbon nanomaterials which, in turn, promises to improve composite materials. Composites are used in everything from airplanes to bicycles and golf clubs.

Graphene is a one-atom thick layer of carbon with a crystalline structure that makes it exceptionally strong and an excellent heat and electrical conductor. It was the subject of research that earned the 2010 Nobel Prize in Physics.

UNL engineers collaborated with researchers from Northwestern University and Materials and Electrochemical Research Corp. of Tucson, Ariz., on this study. The UNL team developed a process to incorporate graphene oxide nanoparticles as a template to guide the formation and orientation of continuous carbon nanofibers, which should improve the fiber's properties. That process involves crumpling the graphene, like crumpling a sheet of paper, in a way that improves graphene as a templating and orientation agent. Only small amounts of crumpled graphene nanoparticles are needed. A group led by chemist SonBinh Nguyen of Northwestern synthesized the graphene oxide.

"Many people are trying to put as much graphene as possible into fibers," Dzenis said, adding that it is difficult to do. "But we did the unconventional thing: We used very small quantities followed by carbonization."

The resulting carbon nanofiber structure has an orientation similar to fibers with demonstrated enhanced strength and other properties, Dzenis said. He and his colleagues are now testing their graphene-based nanofibers for these enhanced properties as well as improving the technique.

The method is promising, he said. It could lower the cost of making composites significantly because it requires only small quantities of expensive nanoparticles and uses an inexpensive nanofiber manufacturing process, which was developed at UNL.

"All of this has potential for high-performance but, at the same time, low-cost carbon nanofibers," Dzenis said.

The team reported its findings in the Dec. 10 issue of Advanced Functional Materials. Co-authors are UNL mechanical and materials engineering colleagues Dimitry Papkov and Alexander Goponenko; facilities specialist Xing-Zhong Li of the Nebraska Center for Materials and Nanoscience; Owen C. Compton, Zhi An and SonBinh T. Nguyen of Northwestern; and Alexander Moravsky of Materials and Electrochemical Research Corp.

This research was funded by grants from the U.S. Army Research Office Multidisciplinary University Research Initiative, Air Force Office of Scientific Research and the National Science Foundation.

Writer: Gillian Klucas, Research and Economic Development

####

For more information, please click here

Contacts:
Yuris Dzenis
Professor
Mechanical and Materials Engineering
phone: 402-472-0713

Copyright © University of Nebraska–Lincoln

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

Switching to spintronics: Berkeley Lab reports on electric field switching of ferromagnetism at room temp December 17th, 2014

ORNL microscopy pencils patterns in polymers at the nanoscale December 17th, 2014

Unraveling the light of fireflies December 17th, 2014

First Home-Made Edible Herbal Nanodrug Presented to Pharmacies across Iran December 17th, 2014

Graphene

Pb islands in a sea of graphene magnetise the material of the future December 16th, 2014

Graphene Applied in Production of Recyclable Electrodes December 13th, 2014

Nanoshaping method points to future manufacturing technology December 11th, 2014

Defects are perfect in laser-induced graphene: Rice University lab discovers simple way to make material for energy storage, electronics December 10th, 2014

Govt.-Legislation/Regulation/Funding/Policy

Switching to spintronics: Berkeley Lab reports on electric field switching of ferromagnetism at room temp December 17th, 2014

ORNL microscopy pencils patterns in polymers at the nanoscale December 17th, 2014

First Home-Made Edible Herbal Nanodrug Presented to Pharmacies across Iran December 17th, 2014

Pb islands in a sea of graphene magnetise the material of the future December 16th, 2014

Discoveries

Switching to spintronics: Berkeley Lab reports on electric field switching of ferromagnetism at room temp December 17th, 2014

ORNL microscopy pencils patterns in polymers at the nanoscale December 17th, 2014

Unraveling the light of fireflies December 17th, 2014

Fraud-proof credit card possible because of quantum physics December 16th, 2014

Materials/Metamaterials

ORNL microscopy pencils patterns in polymers at the nanoscale December 17th, 2014

Pb islands in a sea of graphene magnetise the material of the future December 16th, 2014

Graphene Applied in Production of Recyclable Electrodes December 13th, 2014

A golden thread through the labyrinth of nanomaterials December 12th, 2014

Announcements

Switching to spintronics: Berkeley Lab reports on electric field switching of ferromagnetism at room temp December 17th, 2014

ORNL microscopy pencils patterns in polymers at the nanoscale December 17th, 2014

Unraveling the light of fireflies December 17th, 2014

First Home-Made Edible Herbal Nanodrug Presented to Pharmacies across Iran December 17th, 2014

Interviews/Book Reviews/Essays/Reports/Podcasts/Journals/White papers

Unraveling the light of fireflies December 17th, 2014

Pb islands in a sea of graphene magnetise the material of the future December 16th, 2014

Fraud-proof credit card possible because of quantum physics December 16th, 2014

Scientists trace nanoparticles from plants to caterpillars: Rice University study examines how nanoparticles behave in food chain December 16th, 2014

Military

UCLA engineers first to detect and measure individual DNA molecules using smartphone microscope December 15th, 2014

Nanoshaping method points to future manufacturing technology December 11th, 2014

Stacking two-dimensional materials may lower cost of semiconductor devices December 11th, 2014

Industrial Nanotech, Inc. Expands Government and Defense Projects December 10th, 2014

Research partnerships

Unraveling the light of fireflies December 17th, 2014

Scientists trace nanoparticles from plants to caterpillars: Rice University study examines how nanoparticles behave in food chain December 16th, 2014

FEI and Oregon Health & Science University Install a Complete Correlative Microscopy Workflow in Newly Built Collaborative Science Facility December 16th, 2014

New Technique Could Harvest More of the Sun's Energy December 9th, 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