Nanostructured YSZ thin film for application as electrolyte in an electrode supported SOFC

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DOIResolve DOI: http://doi.org/10.4028/www.scientific.net/MSF.727-728.873
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TypeArticle
Proceedings titleAdvanced powder technology VIII : selected, peer reviewed papers from the eighth Latin American Conference on Powder Technology, November 6-9, 2011, Florianópolis, Brazil
Materials Science Forum
Conference8th International Latin-American Conference on Powder Technology, November 6-9, 2011, Florianópolis, Brazi
ISSN0255-5476
ISBN9783037854907
Volume727-728
Pages873878; # of pages: 6
SubjectDense thin films; Different substrates; Heat treatment process; Nano-structured; Oxidization; Precursor solutions; Pyrolysis process; Salt dissolution; Solvent influence; YSZ thin films; Glycerol; Scanning electron microscopy; Solid oxide fuel cells (SOFC); Spray pyrolysis; Thermoanalysis; X ray diffraction; Yttria stabilized zirconia; Yttrium; Zirconia; Zirconium; Vapor deposition
AbstractThe development of solid oxide fuel cell with thin film concepts for an electrode supported design based on the yttria-stabilized zirconia has demonstrated favourable results due to its high chemistry stability in oxidization and environment reduction. The spray pyrolysis process was investigated in order to obtain dense thin films of YSZ on different substrates. The precursor solution was obtained by zirconium and yttrium salt dissolutions in a mixture of water and glycerine in several ratios to study the solvent influence. The substrate was initially heated at 600 °C and during the deposition it ranged from 260-350°C, finishing at a fast increase in temperature of 600°C. The heat treatment was carried out in four different temperatures: 700 °C, 750 °C, 800 °C, and 900 °. The precursors were characterized by thermal analysis. The microstructures of the films were studied using scanning electron microscopy and X-ray diffraction. The results obtained showed that the films obtained were crystalline before the heat treatment process and have shown ionic conductivity above 800°C.
Publication date
LanguageEnglish
AffiliationNational Research Council Canada (NRC-CNRC); Energy, Mining and Environment
Peer reviewedYes
NPARC number21270234
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Record identifier1e40f8ca-fb38-4229-89e5-4af2ee3d8e72
Record created2014-01-14
Record modified2016-05-09
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