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Oxygen semi-permeation, oxygen diffusion and surface exchange coefficient of La<sub>(1−<i>x</i>)</sub>Sr<sub><i>x</i></sub>Fe<sub>(1−<i>y</i>)</sub>Ga<sub><i>y</i></sub>O<sub>3−<i>δ</i></sub> perovskite membranes

hal.structure.identifierAxe 1 : procédés céramiques
dc.contributor.authorGEFFROY, Pierre-Marie
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorBASSAT, Jean-Marc.
hal.structure.identifierAxe 1 : procédés céramiques
dc.contributor.authorVIVET, Aurélien
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorFOURCADE, Sébastien
hal.structure.identifierAxe 1 : procédés céramiques
dc.contributor.authorCHARTIER, Thierry
hal.structure.identifierCentre de Recherche Claude Delorme [Jouy-en-Josas] [CRCD]
dc.contributor.authorDEL GALLO, P.
hal.structure.identifierCentre de Recherche Claude Delorme [Jouy-en-Josas] [CRCD]
dc.contributor.authorRICHET, N.
dc.date.issued2010
dc.identifier.issn0376-7388
dc.description.abstractEnMixed ionic and electronic conductors (MIEC) have presented great economical and environmental interests for these last years because of their potential applications for electrode materials in solid oxide fuel cell and for oxygen separation form air such as in catalytic membrane reactors for methane conversion into syngas (H2–CO mixture) (A.F. Sammells, M. Schwartz, R.A. Mackay, T.F. Barton, D.R. Peterson [1], U. Balachandran, J.T. Dusek, R.L. Mieville, R.B. Poeppel, M.S. Kleefisch [2], H.J.M. Bouwmeester, B.A. Boukamp [3]). A good compromise between oxygen permeability, chemical stability and physical properties is required to optimize the process. La(1−x)SrxFe(1−y)GayO3−δ materials fulfill this requirement and were retained as membrane for catalytic membrane reactor (CMR) (Y. Teraoka [4], G. Etchegoyen, T. Chartier [5]). Oxygen semi-permeations through La(1−x)SrxFe(1−y)GayO3−δ membranes have been measured under various oxygen partial pressure gradients from 973 K to 1273 K, and compared with the values obtained by isotopic oxygen exchange depth experiments (S. Kim, S. Wang, X. Chen, Y.L. Yang, N. Wu, A. Ignatiev, A.J. Jacobson, and B. Abeles [6]). Those results lead to a better understanding of the oxygen transport through the membrane and the influence of Sr and Ga amounts on oxygen semi-permeation through the membrane. The influence of Ga amount is not limited to the improvement of dimensional stabilities but it also increases oxygen diffusion and surface exchange kinetic. This paper suggests that La0.6Sr0.4Fe0.6Ga0.4O3−δ perovskite is a very good compromise for membrane reactor materials and opens new perspectives on membrane architecture development.
dc.language.isoen
dc.publisherElsevier
dc.subject.enOxygen diffusion coefficient
dc.subject.enOxygen surface exchange
dc.subject.enOxygen semi-permeation
dc.subject.enPerovskite
dc.subject.enCatalytic membrane reactor
dc.title.enOxygen semi-permeation, oxygen diffusion and surface exchange coefficient of La<sub>(1−<i>x</i>)</sub>Sr<sub><i>x</i></sub>Fe<sub>(1−<i>y</i>)</sub>Ga<sub><i>y</i></sub>O<sub>3−<i>δ</i></sub> perovskite membranes
dc.typeArticle de revue
dc.identifier.doi10.1016/j.memsci.2010.03.001
dc.subject.halChimie/Matériaux
bordeaux.journalJournal of Membrane Science
bordeaux.page6-13
bordeaux.volume354
bordeaux.issue1-2
bordeaux.peerReviewedoui
hal.identifierhal-00480889
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-00480889v1
bordeaux.COinSctx_ver=Z39.88-2004&amp;rft_val_fmt=info:ofi/fmt:kev:mtx:journal&amp;rft.jtitle=Journal%20of%20Membrane%20Science&amp;rft.date=2010&amp;rft.volume=354&amp;rft.issue=1-2&amp;rft.spage=6-13&amp;rft.epage=6-13&amp;rft.eissn=0376-7388&amp;rft.issn=0376-7388&amp;rft.au=GEFFROY,%20Pierre-Marie&amp;BASSAT,%20Jean-Marc.&amp;VIVET,%20Aur%C3%A9lien&amp;FOURCADE,%20S%C3%A9bastien&amp;CHARTIER,%20Thierry&amp;rft.genre=article


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