Mergers & Acquisitions

Chonnam National University Describes Research in Nanostructures

  2012 JAN 30 - (VerticalNews.com) -- Data detailed in "Catalytic characteristics of MnO2 nanostructures for the O2 reduction process" have been presented. According to the authors of recent research from Gwangju, South Korea, "Nanorods with an a type MnO(2) structure and a diameter ranging from 25 to 40 nm, along with tipped needles with a ß MnO(2) structure and a diameter of 100 nm were obtained. The 25 nm diameter a MnO(2) nanorods showed the best catalytic activity for dissociation of HO(2)(-) formed during oxygen reduction in a KOH solution."

  "The MnO(2) nanostructures preferably followed a two-electron oxygen reduction mechanism in a LiOH solution. The size of the catalyst also affected the specific capacities of the non-aqueous Li/O(2) batteries fabricated using the MnO(2) based air electrode. The highest specific capacity of 1917 mA h g(-1) was obtained for an a MnO(2) nanorod catalyst having a diameter of 25 nm," wrote R.S. Kalubarme and colleagues, Chonnam National University.

  The researchers concluded: "The cation present in the MnO(2) nanostructures appears to determine the catalytic activity of MnO(2)."

  Kalubarme and colleagues published their study in Nanotechnology (Catalytic characteristics of MnO2 nanostructures for the O2 reduction process. Nanotechnology, 2011;22(39):395402).

  For additional information, contact R.S. Kalubarme, Dept. of Materials Science and Engineering, Chonnam National University, Bukgu, Gwangju, South Korea.

  Keywords: City:Gwangju, Country:South Korea, Region:Asia, Nanostructural, Emerging Technologies.

  This article was prepared by VerticalNews Mergers & Acquisitions editors from staff and other reports. Copyright 2012, VerticalNews Mergers & Acquisitions via VerticalNews.com.