File Download

There are no files associated with this item.

  • Find it @ UNIST can give you direct access to the published full text of this article. (UNISTARs only)
Related Researcher

조재필

Cho, Jaephil
Nano Energy Storage Material Lab.
Read More

Views & Downloads

Detailed Information

Cited time in webofscience Cited time in scopus
Metadata Downloads

Ketjenblack Carbon Supported Amorphous Manganese Oxides Nanowires as Highly Efficient Electrocatalyst for Oxygen Reduction Reaction in Alkaline Solutions

Author(s)
Lee, Jang-SooPark, Gi SuLee, Ho IlKim, Sun TaiCao, RuiguoLiu, MeilinCho, Jaephil
Issued Date
2011-12
DOI
10.1021/nl202907B
URI
https://scholarworks.unist.ac.kr/handle/201301/2906
Fulltext
http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=83655190554
Citation
NANO LETTERS, v.11, no.12, pp.5362 - 5366
Abstract
A composite air electrode consisting of Ketjenblack carbon (KB) supported amorphous manganese oxide (MnOx) nanowires, synthesized via a polyol method, is highly efficient for the oxygen reduction reaction (ORR) in a Zn-air battery. The low-cost and highly conductive KB in this composite electrode overcomes the limitations due to low electrical conductivity of MnOx while acting as a supporting matrix for the catalyst. The large surface area of the amorphous MnOx nanowires, together with other microscopic features (e.g., high density of surface defects), potentially offers more active sites for oxygen adsorption, thus significantly enhancing ORR activity. In particular, a Zn-air battery based on this composite air electrode exhibits a peak power density of similar to 190 mW/cm(2), which is far superior to those based on a commercial air cathode with Mn(3)O(4) catalysts.
Publisher
AMER CHEMICAL SOC
ISSN
1530-6984
Keyword (Author)
Oxygen reduction reactionamorphous manganese oxide nanowireKetjenblack carbonelectrical conductivityZn-air battery
Keyword
COMPLEXESAIR

qrcode

Items in Repository are protected by copyright, with all rights reserved, unless otherwise indicated.