Multi-pore structured cathodes with inorganic dispersants for solid oxide fuel cells

Title
Multi-pore structured cathodes with inorganic dispersants for solid oxide fuel cells
Author(s)
김혜경김주희[김주희]박영민[박영민]
Keywords
FERRITE-BASED PEROVSKITES; INTERMEDIATE TEMPERATURE; COMPOSITE CATHODES; ELECTRODES; OXYGEN
Issue Date
201110
Publisher
KOREAN ASSOC CRYSTAL GROWTH, INC
Citation
JOURNAL OF CERAMIC PROCESSING RESEARCH, v.12, pp.S110 - S113
Abstract
Lanthanum-based iron and cobalt-containing perovskite (La0.6Sr0.4Co0.2Fe0.8O3-delta, LSCF) is a good candidate for cathode materials due to its electro-catalytic activity at a relatively low operating temperature in solid oxide fuel cell (700-800 degrees C). To increase the mass transport and triple-phase boundaries, multi-pore cathode electrodes were fabricated with pore formers and LSCF. In a cathode fabricated with a layered structured pore former, the fuel cell performance increased by 30%, from 1.1 Wcm(-2) to 1.4 Wcm(-2). The multi-pore structure extended the vicinity of the mixed conductor and fuel and resulted in higher fuel cell performance. The porous cathode with pore formers is expected to reduce the required amount of LSCF materials and lower the cost of solid oxide fuel cells (SOFCs).
URI
http://hdl.handle.net/YU.REPOSITORY/24441
ISSN
1229-9162
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공과대학 > 신소재공학부 > Articles
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