Nanotechnology Now

Our NanoNews Digest Sponsors







Heifer International

Wikipedia Affiliate Button


Home > Press > Scientists uncover chemical transformations in cobalt nanoparticles

Provided/Robinson lab
The evolution schematics of transition from cobalt to cobalt phosphide nanocrystals.
Provided/Robinson lab
The evolution schematics of transition from cobalt to cobalt phosphide nanocrystals.

Abstract:
Understanding the intricacies of how nanoparticles undergo chemical transformations could lead to better ways to tailor their composition, which can lead to advanced material properties.

Scientists uncover chemical transformations in cobalt nanoparticles

Ithaca, NY | Posted on May 24th, 2011

Using the Cornell High Energy Synchrotron Source, scientists led by Richard Robinson, assistant professor of materials science and engineering, uncovered exactly what happens when cobalt nanoparticles transform into two phases of cobalt phosphides.

Their work, published in the Journal of Materials Chemistry, was featured by the journal as a "Hot Article" earlier this month.

The effect Robinson's team observed in the cobalt phosphide transitions was a nanoparticle hollowing due to asymmetric diffusivities of cations and anions. In other words, the cations move out from the core faster than anions can diffuse in, leading to a hollow particle.

Other groups have reported on this "Kirkendall" effect, but the Robinson team was the first to show that this hollowing is more complex than previously thought and can be studied as a two-step process. Their work could be used to control this process and produce complex particles with properties tailored for use in energy applications. Metal phosphides have a wide range of properties -- ferromagnetism, superconductivity, catalytic activity and magnetoresistance among them.

The work was done in collaboration with scientists led by Richard Hennig, assistant professor of materials science and engineering. It was supported by King Abdullah University of Science and Technology, the Cornell Center for Materials Research and the Energy Materials Center at Cornell.

####

For more information, please click here

Contacts:
Media Contact:
Blaine Friedlander
(607) 254-8093


Cornell Chronicle:
Anne Ju
(607) 255-9735

Copyright © Cornell University

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

Sound waves precisely position nanowires June 19th, 2013

Scientists Use Nanotechnology to Increase Thermal Stability of Essential Oils June 19th, 2013

Production of Bioactive Material for Quick Treatment of Bone Damages June 19th, 2013

Nanometrics Announces Participation in 5th Annual CEO Investor Summit: Accredited Investor and Publishing Research Analyst Event to be Held Concurrently With SEMICON West and Intersolar 2013 in San Francisco June 19th, 2013

Peratech's new QTC Ultra Touch Screen technology goes behind the display so there is no light loss and longer battery life June 18th, 2013

Chemistry

Pioneering breakthrough of chemical nanoengineering to design drugs controlled by light June 18th, 2013

New Method to Synthesize Zinc Oxide Nanoparticles with High Catalytic Activity June 18th, 2013

Nanoparticle Opens the Door to Clean-Energy Alternatives June 14th, 2013

Discoveries

Sound waves precisely position nanowires June 19th, 2013

Scientists Use Nanotechnology to Increase Thermal Stability of Essential Oils June 19th, 2013

Production of Bioactive Material for Quick Treatment of Bone Damages June 19th, 2013

New Method to Synthesize Zinc Oxide Nanoparticles with High Catalytic Activity June 18th, 2013

Materials

Working backward: Computer-aided design of zeolite templates: Rice scientists apply drug-design lessons to production of industrial minerals June 17th, 2013

Discover the ‘Nanostructure Advantage’ at ECerS 2013, Booth 5: Innovnano presents nanostructured powders for high performance ceramics June 17th, 2013

Discovery of new material state counterintuitive to laws of physics June 14th, 2013

Ceramics in Paper Manufacturing including Advanced and Nano Materials: Author- Dr. Mahendra Patel, 420 pages; 32 chapters, Publ.2013 June 12th, 2013

Announcements

Sound waves precisely position nanowires June 19th, 2013

Scientists Use Nanotechnology to Increase Thermal Stability of Essential Oils June 19th, 2013

Production of Bioactive Material for Quick Treatment of Bone Damages June 19th, 2013

Nanometrics Announces Participation in 5th Annual CEO Investor Summit: Accredited Investor and Publishing Research Analyst Event to be Held Concurrently With SEMICON West and Intersolar 2013 in San Francisco June 19th, 2013

Research partnerships

3-D printing could lead to tiny medical implants, electronics, robots, more June 18th, 2013

Imec presents 4K2K CMOS image sensor together with Panasonic: The co-developed imager sensor chip targets high speed, high resolution imaging applications such as next generation HDTV June 18th, 2013

Pioneering breakthrough of chemical nanoengineering to design drugs controlled by light June 18th, 2013

Study Shows How the Nanog Protein Promotes Growth of Head and Neck Cancer June 18th, 2013

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








abbigliamento uomo
Computer Accessories
© Copyright 1999-2013 7th Wave, Inc. All Rights Reserved PRIVACY POLICY :: CONTACT US :: STATS :: SITE MAP :: ADVERTISE