Comparison of electrolyte fabrication techniques on the performance of anode supported solid oxide fuel cells

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dc.authoridCIGDEM, TIMURKUTLUK/0000-0002-8672-993X
dc.authoridCELIK, SELAHATTIN/0000-0002-7306-9784
dc.authoridTimurkutluk, Bora/0000-0001-6916-7720
dc.authoridOnbilgin, Sezer/0000-0002-5349-8936
dc.contributor.authorOnbilgin, Sezer
dc.contributor.authorTimurkutluk, Bora
dc.contributor.authorTimurkutluk, Cigdem
dc.contributor.authorCelik, Selahattin
dc.date.accessioned2024-11-07T13:31:32Z
dc.date.available2024-11-07T13:31:32Z
dc.date.issued2020
dc.departmentNiğde Ömer Halisdemir Üniversitesi
dc.description.abstractA comparison of three solid oxide electrolyte fabrication processes, namely dip coating, screen printing and tape casting, for planar anode supported solid oxide fuel cells (SOFCs) is presented in this study. The effect of sintering temperature (1325-1400 degrees C) is also examined. The anode and cathode layers of the anode-supported cells, on the other hand, are fabricated by tape casting and screen printing, respectively. The quality of the electrolytes is evaluated via performance measurements, impedance analyses and micro structural investigations of the cells. It is found that the density of the electrolyte increases with the sintering temperatures for all fabrication methods studied. The results also show that with the process and fabrication parameters considered in this study, both dip coating and screen printing do not yield a desired dense electrolyte structure as proven by open circuit potentials measured and SEM photos. The cells with tape cast electrolytes, on the other hand, provide the highest performances regardless of the electrolyte sintering and cell operating temperatures. The best peak performance of 0.924 W/cm2 is obtained from the cell with tape cast electrolyte sintered at 1400 degrees C. SEM investigations and measured open circuit potentials reveal that almost fully dense electrolyte layer can be obtained with a tape cast electrolyte particularly sintered at temperatures higher than 1350 degrees C. Impedance analyses indicate that the main reason behind the significantly higher performances is due to not only increased electrolyte density but a decrease in the interface resistance of the anode functional and electrolyte layer is also responsible. This can be explained by theload applied during the lamination step in the fabrication of the tape cast electrolyte, providing better powder compaction and adhesion. (c) 2020 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
dc.identifier.doi10.1016/j.ijhydene.2020.01.097
dc.identifier.endpage35170
dc.identifier.issn0360-3199
dc.identifier.issn1879-3487
dc.identifier.issue60
dc.identifier.scopus2-s2.0-85078980376
dc.identifier.scopusqualityQ1
dc.identifier.startpage35162
dc.identifier.urihttps://doi.org/10.1016/j.ijhydene.2020.01.097
dc.identifier.urihttps://hdl.handle.net/11480/14900
dc.identifier.volume45
dc.identifier.wosWOS:000594531800005
dc.identifier.wosqualityQ2
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherPergamon-Elsevier Science Ltd
dc.relation.ispartofInternational Journal of Hydrogen Energy
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_20241106
dc.subjectSolid oxide fuel cell
dc.subjectElectrolyte
dc.subjectYttria stabilized zirconia
dc.subjectTape casting
dc.subjectDip coating
dc.subjectScreen printing
dc.titleComparison of electrolyte fabrication techniques on the performance of anode supported solid oxide fuel cells
dc.typeArticle

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