Double Perovskite Sr2FeMoO6 Films Prepared by Electrophoretic Deposition
authors Kovalev, LV; Yarmolich, MV; Petrova, ML; Ustarroz, J; Terryn, HA; Kalanda, NA; Zheludkevich, ML
nationality International
journal ACS APPLIED MATERIALS & INTERFACES
author keywords double perovskite; electrophoretic deposition; solid oxide fuel cell; XPS analysis; magnetic films
keywords OXIDE FUEL-CELLS; MAGNETIC-PROPERTIES; PARTICLES; SR2FE1.5MO0.5O6-DELTA; CATHODES; ANODE
abstract The present work reports on the new approach to create metal-supported Sr2FeMoO6 (SFMO)-based electrodes that have high potential to be applied in solid oxide fuel cells. The SEMO films were formed on stainless steel substrates by electrophoretic deposition (EPD) method. Ethyl alcohol with phosphate ester as a dispersant and isopropyl alcohol with I-2-acetone mixture as a charge additive were considered as an effective medium for EPD of SFMO particles. The synthesis of SFMO powder as well as suspension preparation and deposition kinetics were systematically studied. The effect of applied voltage on the thickness and morphology of SFMO films was established. The microstructure of the deposits was examined by electron microscopy. The thickness, morphology and porosity of the SEMO layers can be fine-tuned by varying solvent, charging additives, deposition time, and applied voltage. According to X-ray photoelectron spectroscopy analysis, it was found that Fe3+-Mo5+ and Fe2+-Mo6+ pairs coexist, whereas the valent balance shifts toward an Fe2+-Mo6+ configuration.
publisher AMER CHEMICAL SOC
issn 1944-8244
year published 2014
volume 6
issue 21
beginning page 19201
ending page 19206
digital object identifier (doi) 10.1021/am5052125
web of science category Nanoscience & Nanotechnology; Materials Science, Multidisciplinary
subject category Science & Technology - Other Topics; Materials Science
unique article identifier WOS:000344978200102
link 25280066
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