Title: Flame spray deposition of La0.6Sr0.4CoO3−δ thin films: microstructural characterization, electrochemical performance and degradation
Authors : Karageorgakis, Nikolaos. I.
Heel, Andre
Bieberle-Hütter, Anja
Rupp, Jennifer L.M.
Graule, Thomas
Gauckler, Ludwig J.
Published in : Journal of power sources
Volume(Issue) : 195
Issue : 24
Pages : 8152
Pages to: 8161
Publisher / Ed. Institution : Elsevier
Issue Date: 2010
License (according to publishing contract) : Licence according to publishing contract
Type of review: Peer review (Publication)
Language : English
Subjects : Thin films; Flame spray deposition; Electrochemistry; Microstructure; Cathode
Subject (DDC) : 660: Chemical engineering
Abstract: Thin films of La0.6Sr0.4CoO3−δ (LSC) were deposited by flame spray deposition at a deposition temperature of 200 °C. The as-deposited LSC films were dense, particle-free and amorphous. Upon annealing above 600 °C, the films crystallized into the rhombohedral perovskite LSC phase. For isothermal annealing at higher temperatures parabolic grain growth kinetics occur in parallel to densification of the thin films. Electrochemical measurements on symmetrical cells with LSC films on CGO pellets showed lowest area specific resistance (ASR) of 0.96 Ω cm2 at 600 °C for films of 38 nm in grain size annealed at 700 °C. Degradation of the ASR of the LSC films of 3.9% was found after 5 days operation at 550 °C in ambient air.
Departement: School of Engineering
Organisational Unit: Institute of Materials and Process Engineering (IMPE)
Publication type: Article in scientific Journal
DOI : 10.1016/j.jpowsour.2010.06.089
ISSN: 0378-7753
1873-2755
URI: https://digitalcollection.zhaw.ch/handle/11475/9270
Appears in Collections:Publikationen School of Engineering

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