Evaluating the effect of Pr-doping on the performance of strontium-doped lanthanum ferrite cathodes for protonic SOFCs

Ma, J; Tao, Z; Kou, H; Fronzi, M; Bi, L

Evaluating the effect of Pr-doping on the performance of strontium-doped lanthanum ferrite cathodes for protonic SOFCs

Ma, J Tao, Z Kou, H Fronzi, M

Bi, L

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Publisher:: Elsevier
Publication Type:: Journal Article
Citation:: Ceramics International, 2020, 46, (3), pp. 4000-4005
Issue Date:: 2020-02-15

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Field	Value	Language
dc.contributor.author	Ma, J
dc.contributor.author	Tao, Z
dc.contributor.author	Kou, H
dc.contributor.author	Fronzi, M https://orcid.org/0000-0001-7855-9216
dc.contributor.author	Bi, L
dc.date.accessioned	2020-11-26T03:23:06Z
dc.date.available	2020-11-26T03:23:06Z
dc.date.issued	2020-02-15
dc.identifier.citation	Ceramics International, 2020, 46, (3), pp. 4000-4005
dc.identifier.issn	0272-8842
dc.identifier.issn	1873-3956
dc.identifier.uri	http://hdl.handle.net/10453/144366
dc.description.abstract	© 2019 Elsevier Ltd and Techna Group S.r.l. A Pr-doping strategy was used to improve traditional strontium-doped lanthanum ferrite oxides for proton-conducting solid oxide fuel cells (SOFCs). Three different samples, La0.5Sr0.5FeO3-δ, La0.25Pr0.25Sr0.5FeO3-δ, and Pr0.5Sr0.5FeO3-δ,were successfully prepared. The Pr content was shown to have an obvious influence on the hydration ability of the materials. Hydration was improved at higher Pr-contents, suggesting a promising cathode performance. However, the improved hydration ability did not always lead to an increased fuel cell performance, and it was found that the fuel cell performed best when an appropriate Pr-doping amount was used that resulted in a good compromise between protonic and oxygen-ion conduction. As a result, the optimized composition La0.25Pr025Sr0.5FeO3-δ generated a high peak power density of 616 mW cm−2 and a low polarization resistance of 0.09 at Ω cm2 at 700 °C, which is an encouraging performance for a traditional cathode material.
dc.language	English
dc.publisher	Elsevier
dc.relation.ispartof	Ceramics International
dc.relation.isbasedon	10.1016/j.ceramint.2019.10.017
dc.rights	info:eu-repo/semantics/restrictedAccess
dc.subject	03 Chemical Sciences, 09 Engineering, 19 Studies in Creative Arts and Writing
dc.subject.classification	Materials
dc.title	Evaluating the effect of Pr-doping on the performance of strontium-doped lanthanum ferrite cathodes for protonic SOFCs
dc.type	Journal Article
utslib.citation.volume	46
utslib.for	03 Chemical Sciences
utslib.for	09 Engineering
utslib.for	19 Studies in Creative Arts and Writing
pubs.organisational-group	/University of Technology Sydney/Faculty of Science
pubs.organisational-group	/University of Technology Sydney
utslib.copyright.status	closed_access	*
pubs.consider-herdc	true
dc.date.updated	2020-11-26T03:23:00Z
pubs.issue	3
pubs.publication-status	Published
pubs.volume	46
utslib.citation.issue	3

Abstract:

© 2019 Elsevier Ltd and Techna Group S.r.l. A Pr-doping strategy was used to improve traditional strontium-doped lanthanum ferrite oxides for proton-conducting solid oxide fuel cells (SOFCs). Three different samples, La0.5Sr0.5FeO3-δ, La0.25Pr0.25Sr0.5FeO3-δ, and Pr0.5Sr0.5FeO3-δ,were successfully prepared. The Pr content was shown to have an obvious influence on the hydration ability of the materials. Hydration was improved at higher Pr-contents, suggesting a promising cathode performance. However, the improved hydration ability did not always lead to an increased fuel cell performance, and it was found that the fuel cell performed best when an appropriate Pr-doping amount was used that resulted in a good compromise between protonic and oxygen-ion conduction. As a result, the optimized composition La0.25Pr025Sr0.5FeO3-δ generated a high peak power density of 616 mW cm−2 and a low polarization resistance of 0.09 at Ω cm2 at 700 °C, which is an encouraging performance for a traditional cathode material.

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http://hdl.handle.net/10453/144366