Improving the Performance of SOFC Anodes by Decorating Perovskite with Ni Nanoparticles

Handle URI:
http://hdl.handle.net/10754/555790
Title:
Improving the Performance of SOFC Anodes by Decorating Perovskite with Ni Nanoparticles
Authors:
Boulfrad, S.; Cassidy, M.; Traversa, Enrico ( 0000-0001-6336-941X ) ; Irvine, J. T. S.
Abstract:
In this work (La0.75Sr0.25)0.97Cr0.5Mn0.5O3 (LSCM) perovskite powders were pre-coated with 5 wt% nickel and mixed with different amounts of CGO for testing as anode materials under 3% wet H2. By using scanning transmission electron microscopy (STEM) with X-ray energy dispersive spectroscopy (EDS), we demonstrated that Ni forms a solid solution in the perovkite phase under oxidizing atmosphere and exsolves in form of nanoparticles under reducing atmospheres. The presence of the catalyst nanoparticles led to a decrease in the anodic activation energy by half and thus the polarization resistance was dropped by 60% at 800¢ªC. The effect of CGO amount will be also discussed.
KAUST Department:
Physical Sciences and Engineering (PSE) Division
Citation:
Improving the Performance of SOFC Anodes by Decorating Perovskite with Ni Nanoparticles 2013, 57 (1):1211 ECS Transactions
Publisher:
The Electrochemical Society
Journal:
ECS Transactions
Issue Date:
7-Oct-2013
DOI:
10.1149/05701.1211ecst
Type:
Article
ISSN:
1938-6737; 1938-5862
Additional Links:
http://ecst.ecsdl.org/cgi/doi/10.1149/05701.1211ecst
Appears in Collections:
Articles; Physical Sciences and Engineering (PSE) Division; Physical Sciences and Engineering (PSE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorBoulfrad, S.en
dc.contributor.authorCassidy, M.en
dc.contributor.authorTraversa, Enricoen
dc.contributor.authorIrvine, J. T. S.en
dc.date.accessioned2015-05-26T07:53:18Zen
dc.date.available2015-05-26T07:53:18Zen
dc.date.issued2013-10-07en
dc.identifier.citationImproving the Performance of SOFC Anodes by Decorating Perovskite with Ni Nanoparticles 2013, 57 (1):1211 ECS Transactionsen
dc.identifier.issn1938-6737en
dc.identifier.issn1938-5862en
dc.identifier.doi10.1149/05701.1211ecsten
dc.identifier.urihttp://hdl.handle.net/10754/555790en
dc.description.abstractIn this work (La0.75Sr0.25)0.97Cr0.5Mn0.5O3 (LSCM) perovskite powders were pre-coated with 5 wt% nickel and mixed with different amounts of CGO for testing as anode materials under 3% wet H2. By using scanning transmission electron microscopy (STEM) with X-ray energy dispersive spectroscopy (EDS), we demonstrated that Ni forms a solid solution in the perovkite phase under oxidizing atmosphere and exsolves in form of nanoparticles under reducing atmospheres. The presence of the catalyst nanoparticles led to a decrease in the anodic activation energy by half and thus the polarization resistance was dropped by 60% at 800¢ªC. The effect of CGO amount will be also discussed.en
dc.publisherThe Electrochemical Societyen
dc.relation.urlhttp://ecst.ecsdl.org/cgi/doi/10.1149/05701.1211ecsten
dc.rightsArchived with thanks to ECS Transactions © 2013 ECS - The Electrochemical Societyen
dc.titleImproving the Performance of SOFC Anodes by Decorating Perovskite with Ni Nanoparticlesen
dc.typeArticleen
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.identifier.journalECS Transactionsen
dc.eprint.versionPublisher's Version/PDFen
dc.contributor.institutionUniversity of St Andrewsen
kaust.authorBoulfrad, Samiren
kaust.authorTraversa, Enricoen
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