A highly activated and integrated nanoscale interlayer of cathodes in low-temperature solid oxide fuel cells via precursor-solution electrospray method

Title
A highly activated and integrated nanoscale interlayer of cathodes in low-temperature solid oxide fuel cells via precursor-solution electrospray method
Authors
김형철이승용손지원신성수김정훈Guangmin Li최만수
Issue Date
2019-02
Publisher
International journal of hydrogen energy
Citation
VOL 44, NO 9-4483
Abstract
This study demonstrates the fabrication of a highly activated and integrated nanoscale interlayer of cathodes in low-temperature solid oxide fuel cells (SOFCs) using the precursor-solution electrospray method. Uniform, crack-free La0.6Sr0.4CoO3− δ (LSC) and LSC-CeO2 thin-film layers are fabricated by using optimized precursor-solution electrospray and sintering conditions. The LSC– CeO2 composite layer served as a nanoscale-cathode-functional layer (nCFL) by suppressing grain growth and increasing the number of triple-phase boundaries. The LSC nanoscale-adhesive layer (nAL) played a limited role as an adhesive layer due to a large amount of grain growth and limited triple-phase boundaries. Low-temperature SOFCs with the nAL and nCFL nanoscale interlayers showed maximum power densities of ∼1.108 and 1.150 W cm− 2 at 650 °C, which were ∼13% and 18% higher, respectively, than those of a reference cell without nanoscale interlayers.
URI
http://pubs.kist.re.kr/handle/201004/69028
ISSN
0360-3199
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KIST Publication > Article
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