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Hydrogen diffusion in high temperature proton conducting ceramics

hal.structure.identifierLaboratoire Pierre Süe [LPS]
dc.contributor.authorSORIEUL, S.
hal.structure.identifierLaboratoire Pierre Süe [LPS]
hal.structure.identifierService de recherches de métallurgie physique [SRMP]
dc.contributor.authorMIRO, S.
hal.structure.identifierInstitut Charles Gerhardt Montpellier - Institut de Chimie Moléculaire et des Matériaux de Montpellier [ICGM ICMMM]
dc.contributor.authorTAILLADES-JACQUIN, M.
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorDAILLY, Julian
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorMAUVY, Fabrice
hal.structure.identifierCentre des Matériaux [CDM]
dc.contributor.authorBERGER, Marie-Hélène
hal.structure.identifierLaboratoire Pierre Süe [LPS]
dc.contributor.authorBERGER, P.
dc.date.issued2008
dc.identifier.issn0168-583X
dc.description.abstractEnBaCeO3 or SrCeO3-based perovskites doped with a rare earth are high temperature protonic conductors (HTPC) envisioned as electrolytes for fuel cells working at intermediate temperature (400–600 C). In these ceramics, the proton conductance is hampered by microstructural defects that act as barriers for hydrogen diffusion. Respective contributions of bulk and grain boundaries to overall conductivity is usually evidenced via impedance measurements but further information on hydrogen transport relevant for improvement of microstructure design can be obtained with nuclear microanalysis, based on the use of MeV light ions microbeam. We report here a contribution of ion beam microanalysis to the study of hydrogen transport in BaCe0.9Y0.1O3. ERDA hydrogen profiling performed on partially hydrated samples at 200 and 500 C reveals concentration gradients from which diffusion coefficients have been derived with the help of a simple Fickian diffusion model.
dc.language.isoen
dc.publisherElsevier
dc.title.enHydrogen diffusion in high temperature proton conducting ceramics
dc.typeArticle de revue
dc.identifier.doi10.1016/j.nimb.2007.12.005
dc.subject.halChimie/Matériaux
dc.subject.halPhysique [physics]/Physique Nucléaire Expérimentale [nucl-ex]
bordeaux.journalNuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms
bordeaux.page1430-1433
bordeaux.volume266
bordeaux.issue8
bordeaux.peerReviewedoui
hal.identifiercea-00283001
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//cea-00283001v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Nuclear%20Instruments%20and%20Methods%20in%20Physics%20Research%20Section%20B:%20Beam%20Interactions%20with%20Materials%20and%20Atoms&rft.date=2008&rft.volume=266&rft.issue=8&rft.spage=1430-1433&rft.epage=1430-1433&rft.eissn=0168-583X&rft.issn=0168-583X&rft.au=SORIEUL,%20S.&MIRO,%20S.&TAILLADES-JACQUIN,%20M.&DAILLY,%20Julian&MAUVY,%20Fabrice&rft.genre=article


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