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

Abstract:

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.

• Periodical: Key Engineering Materials (Volume 573)
• Pages: 13-17
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.573.13
• Online since: September 2013
• Authors: Wen Cheng J. Wei

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