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dc.contributor.authorMatsuka, Maki
dc.contributor.authorBraddock, Roger D
dc.contributor.authorMatsumoto, Hiroshige
dc.contributor.authorSakai, Takaaki
dc.contributor.authorAgranovski, Igor E
dc.contributor.authorIshihara, Tatsumi
dc.date.accessioned2017-05-03T14:50:20Z
dc.date.available2017-05-03T14:50:20Z
dc.date.issued2010
dc.date.modified2011-03-22T07:03:47Z
dc.identifier.issn0167-2738
dc.identifier.doi10.1016/j.ssi.2010.07.002
dc.identifier.urihttp://hdl.handle.net/10072/37472
dc.description.abstractNon-galvanic hydrogen permeation properties of SrCe0.95Yb0.05O3 - a (SCYb-5) and SrCe0.95Tm0.05O3 - a (SCTm-5) dense membranes were investigated in a 'wet' hydrogen atmosphere where water vapour partial pressures were well defined and monitored for the entire duration of the experiments. The theoretical modelling of hydrogen permeation flux for SCYb-5 and SCTm-5 was also undertaken, and compared with experimental results. The parameter tuning was also performed by fitting the model to the experimental data obtained in this study. The experimental hydrogen permeation flux for SCYb-5 and SCTm-5 dense membranes was 6.8e- 9 mol/cm2/s and 7.1e- 9 mol/cm2/s, respectively, under the upstream hydrogen partial pressure of 0.25 atm (25%H2/Ar) at 900 î As expected, the hydrogen permeation flux increases with the increase in the upstream hydrogen partial pressures, reaching the maximum flux of 1.4e- 8 mol/cm2/s and 1.6e- 8 mol/cm2/s, for SCYb-5 and SCTm-5 respectively, under the upstream hydrogen partial pressure of 1 atm (100%H2) at 900 î Previous modelling used hydrogen permeation data collected by others in a permeation test conducted in a 'dry' hydrogen atmosphere (with unknown water vapour pressures). The modelled hydrogen permeation flux agreed well with the experimental data attained in this study, for both SCYb-5 and SCTm-5 samples. The parameter tuning further improved the model predictions for those samples. It was apparent that the modelled hydrogen flux agreed better with the experimental data obtained in this study (i.e. in a wet hydrogen atmosphere with known water vapour pressures).
dc.description.peerreviewedYes
dc.description.publicationstatusYes
dc.languageEnglish
dc.language.isoen_AU
dc.publisherElsevier
dc.publisher.placeNetherlands
dc.relation.ispartofstudentpublicationN
dc.relation.ispartofpagefrom1328
dc.relation.ispartofpageto1335
dc.relation.ispartofissue29-30
dc.relation.ispartofjournalSolid State Ionics
dc.relation.ispartofvolume181
dc.rights.retentionY
dc.subject.fieldofresearchCondensed Matter Physics not elsewhere classified
dc.subject.fieldofresearchCondensed Matter Physics
dc.subject.fieldofresearchPhysical Chemistry (incl. Structural)
dc.subject.fieldofresearchMaterials Engineering
dc.subject.fieldofresearchcode020499
dc.subject.fieldofresearchcode0204
dc.subject.fieldofresearchcode0306
dc.subject.fieldofresearchcode0912
dc.titleExperimental and theoretical studies of hydrogen permeation for doped strontium cerates
dc.typeJournal article
dc.type.descriptionC1 - Articles
dc.type.codeC - Journal Articles
gro.facultyGriffith Sciences, Griffith School of Engineering
gro.date.issued2010
gro.hasfulltextNo Full Text
gro.griffith.authorBraddock, Roger D.
gro.griffith.authorAgranovski, Igor E.
gro.griffith.authorMatsuka, Maki


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