Please use this identifier to cite or link to this item: https://hdl.handle.net/11147/6000
Title: Formation of La1-xSrxCo1-yFeyO3-? cathode materials from precursor salts by heating in contact with CGO electrolyte
Authors: Sındıraç, Can
Akkurt, Sedat
Keywords: LSCF
SOFC
Cathode material
Fuel cell
Thermal decomposition
Issue Date: 26-Oct-2016
Publisher: Elsevier Ltd.
Source: Sındıraç, C., and Akkurt, S. (2016). Formation of La1−xSrxCo1−yFeyO3−δ cathode materials from precursor salts by heating in contact with CGO electrolyte. International Journal of Hydrogen Energy, 41(40), 18157-18165. doi:10.1016/j.ijhydene.2016.07.143
Abstract: The purpose of this study is to determine the solid state reactions leading to the formation of La0.6Sr0.4Co0.8Fe0.2O3 and La0.6Sr0.4Co0.2Fe0.8O3 which are widely used as cathode material in solid oxide fuel cells (SOFC) from precursor salts. Interactions between the cathode and the electrolyte layers are also investigated while the cathode layer formed upon heating in contact with the surface of cerium-gadolinium oxide (CGO) electrolyte substrates. Almost all combinations of precursor salt mixtures were tested to see if all solid state reactions are completed and what phases eventually formed. Most of the transformation was complete after 1050 °C heat treatment to yield different mixed oxides. The cathode layer was usually in porous form but was found to spread well over the substrate. Uneven diffusion of La, Sr, Co or Fe into the substrate influenced the stoichiometry of the resulting cathode layer in varying degrees. Fe was found to diffuse into the substrate.
URI: https://doi.org/10.1016/j.ijhydene.2016.07.143
http://hdl.handle.net/11147/6000
ISSN: 0360-3199
Appears in Collections:Mechanical Engineering / Makina Mühendisliği
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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