Nanotechnology Now

Our NanoNews Digest Sponsors

Heifer International

Wikipedia Affiliate Button


DHgate

Home > Press > Aluminum Nitride Nanotubes Proposed for Detecting Toxic Gases

Abstract:
Researchers at Tarbiat Modarres University together with their colleagues from the Islamic Azad University proposed aluminum nitride nanotubes as a potential sensing element for the poisonous and carcinogenic formaldehyde gas with the help of computer modeling and analysis.

Aluminum Nitride Nanotubes Proposed for Detecting Toxic Gases

Tehran, Iran | Posted on May 5th, 2012

Today, formaldehyde marks as a highly-used chemical compound in industrial applications though being proved carcinogenic. Carbon nanotubes, on the other hand, have been investigated as formaldehyde gas sensors, however there found to be difficulties in segregation of semiconductive and conductive CNTs as well as limited reactivity of the CNTs and the gas.

Nanotubular structure of aluminum nitride which exhibits semi-conductive properties - unlike the nonconductive bulk aluminum nitride - has attracted the attention of the mentioned researchers in this regard. The outcomes of the research work revealed that aluminum nitride nanotubes are promising in detection of the toxic formaldehyde gas.

"The results indicate that the adsorption of formaldehyde upon the aluminum nitride nanotubes is in favor of their electrical conductance. Therefore, provided that an AlN nanotube is placed in an electric circuit, we can read an electrical signal as soon as a few formaldehyde molecules are adsorbed," Ahmadi, a member of the research group, said , describing the conceptual sensor's mechanism.

Based on the findings of this research, the adsorption of formaldehyde on aluminum nitride nanotubes immediately causes charge transfer and narrows the energy gap which in turn increases the electric conductance of the tubes. A short response time, high selective operation, favorable degree of recovery, and being free of further treatments are among the advantages of this model sensor.

The researchers hope their study will motivate experimental efforts for the synthesis of AlN nanotube based formaldehyde sensors.

####

For more information, please click here

Copyright © Fars News Agency

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

Composite Pipe Long Term Testing Facility February 10th, 2016

Scientists take nanoparticle snapshots February 10th, 2016

Chemical cages: New technique advances synthetic biology February 10th, 2016

New thin film transistor may lead to flexible devices: Researchers engineer an electronics first, opening door to flexible electronics February 10th, 2016

Nanotubes/Buckyballs/Fullerenes

Superconductivity: Footballs with no resistance - Indications of light-induced lossless electricity transmission in fullerenes contribute to the search for superconducting materials for practical applications February 9th, 2016

The iron stepping stones to better wearable tech without semiconductors February 8th, 2016

Nano-coating makes coaxial cables lighter: Rice University scientists replace metal with carbon nanotubes for aerospace use January 28th, 2016

Scientists provide new guideline for synthesis of fullerene electron acceptors January 28th, 2016

Sensors

Scientists have put a high precision blood assay into a simple test strip: Researchers have developed a new biosensor test system based on magnetic nanoparticles February 3rd, 2016

Nanosheet growth technique could revolutionize nanomaterial production February 1st, 2016

New record in nanoelectronics at ultralow temperatures January 28th, 2016

NBC LEARN DEBUTS SIX-PART VIDEO SERIES, “NANOTECHNOLOGY: SUPER SMALL SCIENCE” Produced by NBC Learn in partnership with the National Science Foundation, and narrated by NBC News/MSNBC’s Kate Snow, series highlights leading research in nanotechnology January 25th, 2016

Discoveries

Scientists take nanoparticle snapshots February 10th, 2016

Chemical cages: New technique advances synthetic biology February 10th, 2016

New thin film transistor may lead to flexible devices: Researchers engineer an electronics first, opening door to flexible electronics February 10th, 2016

Electron's 1-D metallic surface state observed: A step for the prediction of electronic properties of extremely-fine metal nanowires in next-generation semiconductors February 9th, 2016

Announcements

Composite Pipe Long Term Testing Facility February 10th, 2016

Scientists take nanoparticle snapshots February 10th, 2016

Chemical cages: New technique advances synthetic biology February 10th, 2016

New thin film transistor may lead to flexible devices: Researchers engineer an electronics first, opening door to flexible electronics February 10th, 2016

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







Car Brands
Buy website traffic