LAPSE:2023.30727
Published Article
LAPSE:2023.30727
Implications of Cation Interdiffusion between Double Perovskite Cathode and Proton-Conducting Electrolyte for Performance of Solid Oxide Fuel Cells
April 17, 2023
Chemical compatibility and cation interdiffusion between the double perovskite cobaltites RBaCo2O6−δ (R = Gd, Pr) and proton-conducting electrolyte BaZr0.8Y0.2O3−δ were studied. Chemical interaction was found to occur already at 1100 °C as a result of the partial dissolution of RBaCo2O6−δ (R = Gd, Pr) in BaZr0.8Y0.2O3−δ. Analysis of the element distribution along the cross sections of diffusion couples RBaCo2O6−δ(R = Gd, Pr)|BaZr0.8Y0.2O3−δ showed strong interdiffusion of cations, with cobalt being the most mobile one. Its diffusion depth in the electrolyte reaches up to several hundreds of micrometers. The addition of NiO as a sintering aid to BaZr0.8Y0.2O3−δ promotes cation diffusion especially through the grain boundary mechanism, increasing the diffusion depth of Co. The possible implications of cation interdiffusion on the performance of proton-conducting SOFCs are discussed based on the results obtained.
Record ID
Keywords
cathode materials, cation interdiffusion, double perovskites, proton-conducting solid electrolyte, Solid Oxide Fuel Cells
Subject
Suggested Citation
Tsvetkova NS, Malyshkin DA, Ivanov IL, Tsvetkov DS, Zuev AY. Implications of Cation Interdiffusion between Double Perovskite Cathode and Proton-Conducting Electrolyte for Performance of Solid Oxide Fuel Cells. (2023). LAPSE:2023.30727
Author Affiliations
Tsvetkova NS: Institute of Natural Sciences and Mathematics, Ural Federal University, 19 Mira St., 620002 Ekaterinburg, Russia
Malyshkin DA: Laboratory of Hydrogen Energy, Ural Federal University, 19 Mira St., 620002 Ekaterinburg, Russia
Ivanov IL: Laboratory of Hydrogen Energy, Ural Federal University, 19 Mira St., 620002 Ekaterinburg, Russia [ORCID]
Tsvetkov DS: Institute of Natural Sciences and Mathematics, Ural Federal University, 19 Mira St., 620002 Ekaterinburg, Russia; Laboratory of Hydrogen Energy, Ural Federal University, 19 Mira St., 620002 Ekaterinburg, Russia
Zuev AY: Institute of Natural Sciences and Mathematics, Ural Federal University, 19 Mira St., 620002 Ekaterinburg, Russia [ORCID]
Malyshkin DA: Laboratory of Hydrogen Energy, Ural Federal University, 19 Mira St., 620002 Ekaterinburg, Russia
Ivanov IL: Laboratory of Hydrogen Energy, Ural Federal University, 19 Mira St., 620002 Ekaterinburg, Russia [ORCID]
Tsvetkov DS: Institute of Natural Sciences and Mathematics, Ural Federal University, 19 Mira St., 620002 Ekaterinburg, Russia; Laboratory of Hydrogen Energy, Ural Federal University, 19 Mira St., 620002 Ekaterinburg, Russia
Zuev AY: Institute of Natural Sciences and Mathematics, Ural Federal University, 19 Mira St., 620002 Ekaterinburg, Russia [ORCID]
Journal Name
Energies
Volume
16
Issue
7
First Page
2980
Year
2023
Publication Date
2023-03-24
Published Version
ISSN
1996-1073
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PII: en16072980, Publication Type: Journal Article
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LAPSE:2023.30727
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doi:10.3390/en16072980
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Apr 17, 2023
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