Nano-structured cathodes based on La0.6Sr0.4Co0.2Fe0.8O3-delta for solid oxide fuel cells

Title
Nano-structured cathodes based on La0.6Sr0.4Co0.2Fe0.8O3-delta for solid oxide fuel cells
Author(s)
김혜경김주희[김주희]박영민[박영민]
Keywords
FERRITE-BASED PEROVSKITES; INTERMEDIATE TEMPERATURE; ELECTROCHEMICAL PERFORMANCE; COMPOSITE CATHODES; SURFACE-AREA; CONDUCTIVITY; OPTIMIZATION; ELECTRODES; OXIDATION; ZIRCONIA
Issue Date
201103
Publisher
ELSEVIER SCIENCE BV
Citation
JOURNAL OF POWER SOURCES, v.196, no.7, pp.3544 - 3547
Abstract
Lanthanum-based iron- and cobalt-containing perovskite is a promising cathode material because of its electrocatalytic activity at a relatively low operating temperature in solid oxide fuel cells (SOFCs), i.e., 700-800 degrees C. To enhance the electrocatalytic reduction of oxidants on La0.6Sr0.4Co0.2Fe0.8O3-delta (LSCF), nanocrystalline LSCF materials are successfully fabricated using a complexing method with chelants and inorganic nano dispersants. When inorganic dispersants are added to the synthesis process, the surface area of the LSCF powder increases from 18 to 88 m(2) g(-1), which results in higher electrocatalytic activity of the cathode. The performance of a unit cell of a SOFC with nanocrystalline LSCF powders synthesized with nano dispersants is increased by 60%, from 0.7 to 1.2 W cm(-2). (C) 2010 Elsevier B.V. All rights reserved.
URI
http://hdl.handle.net/YU.REPOSITORY/25534http://dx.doi.org/10.1016/j.jpowsour.2010.12.029
ISSN
0378-7753
Appears in Collections:
공과대학 > 신소재공학부 > Articles
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