Nanotechnology Now

Our NanoNews Digest Sponsors


Heifer International

Wikipedia Affiliate Button

Home > Press > Manganese Nano Oxides Show Self-repair Properties in New Study

Abstract:
Iranian researchers discovered new self-repair properties in manganese nano oxides during a study on the stability of these materials in media containing oxidants.

Manganese Nano Oxides Show Self-repair Properties in New Study

Tehran, Iran | Posted on July 1st, 2013

Manganese oxides were used to be known as instable materials in oxidative environments. Manganese nano oxides can be used as catalyst in water oxidation reaction to produce hydrogen as green fuel. The self-repair properties of these particles decrease the cost of the production of green fuel.

Dr. Mohammad Mehdi Najafpour, a member of the Scientific Board of Institute for Advanced Studies in Basic Sciences, elaborated on the research. "In order to obtain a catalyst with self-repair properties, we chose a type of manganese oxide that has a very reasonable price and is synthesized very easily. These materials lose their active sites after a while. In other words, they are damaged. By precisely studying the separated sites, we realized that the separated sites rejoin the surface of the catalyst through a self-repair process. I can say, the catalyst is repaired."

The catalyst with the ability to oxidize water used in this research is able to repair a part of its structure in case it is damaged. The both characteristics, that is water oxidization and self-repair, can be observed when the particles are at nanometirc scales. Otherwise, the both characteristics do not happen at the same time or take place too slowly.

The mechanism proposed by this research team suggests that manganese ions leave the surface of the oxides and enter into the solution. They turn into permanganate due to the presence of oxidants. Then, the ions react with manganese oxide once again after the consumption of oxidants, and they turn into manganese oxide again.

####

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

WSU researchers 'watch' crystal structure change in real time: Breakthrough made possible by new Argonne facility July 27th, 2016

Enhancing molecular imaging with light: New technology platform increases spectroscopic resolution by 4 fold July 27th, 2016

New nontoxic process promises larger ultrathin sheets of 2-D nanomaterials July 27th, 2016

Scientists test nanoparticle drug delivery in dogs with osteosarcoma July 26th, 2016

Discoveries

WSU researchers 'watch' crystal structure change in real time: Breakthrough made possible by new Argonne facility July 27th, 2016

Enhancing molecular imaging with light: New technology platform increases spectroscopic resolution by 4 fold July 27th, 2016

New nontoxic process promises larger ultrathin sheets of 2-D nanomaterials July 27th, 2016

New lithium-oxygen battery greatly improves energy efficiency, longevity: New chemistry could overcome key drawbacks of lithium-air batteries July 26th, 2016

Materials/Metamaterials

WSU researchers 'watch' crystal structure change in real time: Breakthrough made possible by new Argonne facility July 27th, 2016

New lithium-oxygen battery greatly improves energy efficiency, longevity: New chemistry could overcome key drawbacks of lithium-air batteries July 26th, 2016

Ultra-flat circuits will have unique properties: Rice University lab studies 2-D hybrids to see how they differ from common electronics July 25th, 2016

Attosecond physics: Mapping electromagnetic waveforms July 25th, 2016

Announcements

WSU researchers 'watch' crystal structure change in real time: Breakthrough made possible by new Argonne facility July 27th, 2016

Enhancing molecular imaging with light: New technology platform increases spectroscopic resolution by 4 fold July 27th, 2016

New nontoxic process promises larger ultrathin sheets of 2-D nanomaterials July 27th, 2016

Ultrasensitive sensor using N-doped graphene July 26th, 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