Nanotechnology Now

Our NanoNews Digest Sponsors

Heifer International

Wikipedia Affiliate Button

Home > News > Supercritical fluid processing of carbon nanotube composites

December 17th, 2008

Supercritical fluid processing of carbon nanotube composites

Abstract:
Supercritical fluids are quickly becoming an alternative to costly and dangerous organic solvents in chemical processes. As the boundaries between gas and liquid blur at high temperatures and pressure, a supercritical fluid loses surface tension and can act as an impressive solvent. Readers of Nobel Intent have seen the endless stream of CNT coverage as the nanotechnology boom continues—it was only a matter of time before carbon nanotubes (CNTs) and supercritical fluids were put together.

Supercritical fluid processing of CNTs has generated composite materials that, in some cases, are easier and cheaper to prepare, while in others produced entirely new nanostructures. Advanced Materials has put together a review showing the diversity of the structures prepared with supercritical fluids and CNTs.

CNTs, despite all their glowing press coverage, don't play well with others. The lock-tight carbon-carbon bonding makes it difficult to bond other molecules to their surface, a process called functionalizing, and the low surface tension makes any attempts at sticking particles to the CNT the rough equivalent of trying to glue something to a Teflon frying pan. The difficulties associated with dispersing CNTs in a solution (past coverage of this problem, and one solution, can be found here) makes solution processing and bulk preparation of CNT composites difficult.

Source:
arstechnica.com

Bookmark:
Delicious Digg Newsvine Google Yahoo Reddit Magnoliacom Furl Facebook

Related News Press

News and information

Basque researchers turn light upside down February 23rd, 2018

Stiffness matters February 23rd, 2018

Imaging individual flexible DNA 'building blocks' in 3-D: Berkeley Lab researchers generate first images of 129 DNA structures February 22nd, 2018

'Memtransistor' brings world closer to brain-like computing: Combined memristor and transistor can process information and store memory with one device February 22nd, 2018

Nanotubes/Buckyballs/Fullerenes/Nanorods

Nanotube fibers in a jiffy: Rice University lab makes short nanotube samples by hand to dramatically cut production time January 11th, 2018

Touchy nanotubes work better when clean: Rice, Swansea scientists show that decontaminating nanotubes can simplify nanoscale devices January 4th, 2018

Paving the way for a non-electric battery to store solar energy: UMass Amherst scientists say a polymer chain organized like a string of Christmas lights assists energy storage December 22nd, 2017

Nanotubes go with the flow to penetrate brain tissue: Rice University scientists, engineers develop microfluidic devices, microelectrodes for gentle implantation December 19th, 2017

Discoveries

Basque researchers turn light upside down February 23rd, 2018

Histology in 3-D: New staining method enables Nano-CT imaging of tissue samples February 22nd, 2018

Developing reliable quantum computers February 22nd, 2018

Imaging individual flexible DNA 'building blocks' in 3-D: Berkeley Lab researchers generate first images of 129 DNA structures February 22nd, 2018

Materials/Metamaterials

Basque researchers turn light upside down February 23rd, 2018

Atomic structure of ultrasound material not what anyone expected February 21st, 2018

Rutgers-Led Innovation Could Spur Faster, Cheaper, Nano-Based Manufacturing: Scalable and cost-effective manufacturing of thin film devices February 14th, 2018

Graphene on toast, anyone? Rice University scientists create patterned graphene onto food, paper, cloth, cardboard February 13th, 2018

Announcements

Basque researchers turn light upside down February 23rd, 2018

Stiffness matters February 23rd, 2018

Histology in 3-D: New staining method enables Nano-CT imaging of tissue samples February 22nd, 2018

Developing reliable quantum computers February 22nd, 2018

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



  Premium Products
NanoNews-Custom
Only the news you want to read!
 Learn More
NanoStrategies
Full-service, expert consulting
 Learn More











ASP
Nanotechnology Now Featured Books




NNN

The Hunger Project