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

A big nano boost for solar cells: Kyoto University and Osaka Gas effort doubles current efficiencies January 21st, 2017

A toolkit for transformable materials: How to design materials with reprogrammable shape and function January 20th, 2017

Explaining how 2-D materials break at the atomic level January 20th, 2017

New research helps to meet the challenges of nanotechnology: Research helps to make the most of nanoscale catalytic effects for nanotechnology January 20th, 2017

Nanotubes/Buckyballs/Fullerenes

Captured on video: DNA nanotubes build a bridge between 2 molecular posts: Research may lead to new lines of direct communication with cells January 9th, 2017

Nano-chimneys can cool circuits: Rice University scientists calculate tweaks to graphene would form phonon-friendly cones January 4th, 2017

WPI researchers build liquid biopsy chip that detects metastatic cancer cells in blood December 15th, 2016

Infrared instrumentation leader secures exclusive use of Vantablack coating December 5th, 2016

Discoveries

A big nano boost for solar cells: Kyoto University and Osaka Gas effort doubles current efficiencies January 21st, 2017

A toolkit for transformable materials: How to design materials with reprogrammable shape and function January 20th, 2017

Explaining how 2-D materials break at the atomic level January 20th, 2017

New research helps to meet the challenges of nanotechnology: Research helps to make the most of nanoscale catalytic effects for nanotechnology January 20th, 2017

Materials/Metamaterials

A toolkit for transformable materials: How to design materials with reprogrammable shape and function January 20th, 2017

Explaining how 2-D materials break at the atomic level January 20th, 2017

Chemists Cook up New Nanomaterial and Imaging Method: Nanomaterials can store all kinds of things, including energy, drugs and other cargo January 19th, 2017

Strength of hair inspires new materials for body armor January 18th, 2017

Announcements

A big nano boost for solar cells: Kyoto University and Osaka Gas effort doubles current efficiencies January 21st, 2017

A toolkit for transformable materials: How to design materials with reprogrammable shape and function January 20th, 2017

New research helps to meet the challenges of nanotechnology: Research helps to make the most of nanoscale catalytic effects for nanotechnology January 20th, 2017

Ultra-precise chip-scale sensor detects unprecedentedly small changes at the nanoscale January 20th, 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