Cobalt-Based Catalysts for Oxygen Reduction / Evolution Reactions in Alkaline Medium

Title
Cobalt-Based Catalysts for Oxygen Reduction / Evolution Reactions in Alkaline Medium
Authors
정남기박희영이상영김만수남석우임태훈장종현성영은유성종
Issue Date
2013-04
Publisher
2013 MRS Spring Meeting
Abstract
The sluggish oxygen reduction reaction (ORR) has been one of the most important problems in fuel cell. Many researchers have studied Pt-based alloy (Pt-M, M = Co, Ni, Fe) catalysts since the alloyed transition metal could make the d-band center of Pt lowered by the electronic and strain effects. However, the development of non-precious catalysts has been required since the price of Pt is too much high in the fuel cell applications. In addition, the hydrogen production by water splitting has been important for the fuel cell operation. However, the oxygen evolution reaction (OER) is the key factor in water splitting involving the hydrogen evolution reaction (HER) because the multiple electron transfer is demanded as same as in the ORR. In these regards, non-precious Co-based catalysts such as cobalt oxide and Co-Pi (cobalt-phosphate complex) have been recently developed for the ORR and OER catalysts, respectively. Additionally, Manganese oxide was studied as the bi-functional catalyst for both the ORR and OER. We tried to synthesize carbon-supported Co nanoparticles involving various P contents. The effects of P on Co nanoparticles were investigated, and they were applied to ORR and OER in 0.1 M KOH.
URI
http://pubs.kist.re.kr/handle/201004/44830
Appears in Collections:
KIST Publication > Conference Paper
Files in This Item:
There are no files associated with this item.
Export
RIS (EndNote)
XLS (Excel)
XML


qrcode

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

BROWSE