Conductivity Analysis on Hetero-Junction of Multiple Nano-Structural Layers

Conductivity Analysis on Hetero-Junction of Multiple Nano-Structural Layers

Ionic/electronic performance of various cathodes in contact with solid electrolytes used for intermediate-temperature (500-750°C) solid oxide fuel cells (SOFCs) is investigated. Perovskite-type material, e.g. (La,Sr)(Co,Fe)O3 as abbreviated LSCF, mixed with Gd-doped CeO2 (GDC) particulates in variou...

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Veröffentlicht in:Key engineering materials 2014-01, Vol.573, p.13-17
1. Verfasser: Wei, Wen Cheng J.
Format: Artikel
Sprache:eng
Schlagworte:
Cathodes
Contact
Coprecipitation
Electrolytes
Electronics
Multilayers
Solid electrolytes
Yttria stabilized zirconia
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Zusammenfassung:Ionic/electronic performance of various cathodes in contact with solid electrolytes used for intermediate-temperature (500-750°C) solid oxide fuel cells (SOFCs) is investigated. Perovskite-type material, e.g. (La,Sr)(Co,Fe)O3 as abbreviated LSCF, mixed with Gd-doped CeO2 (GDC) particulates in various size ranges has been synthesized by Pichini and co-precipitation methods. The composites are assembled into multilayer cathode structure, which is arranged in a sequence of composite/GDC/ YSZ electrolyte. The microstructure of the interface, electrochemical performance, and interface conductivity of various cell combinations are investigated.
ISSN:1013-9826
1662-9795
1662-9795
DOI:10.4028/www.scientific.net/KEM.573.13